Cryptography Jobs

Check out 51 Cryptography Jobs.
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DeFi Research Analyst

We are a team focused on advancing decentralized systems and empowering enterprises and developers worldwide. Our areas of expertise include Ethereum and Starknet protocol engineering, decentralized finance (DeFi), protocol research, cryptography research, security auditing, real-time monitoring, smart contract development, and dapps and enterprise engineering. We actively collaborate with industry leaders such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, and more. With a global remote team of nearly 200 people from over 45 countries, we aspire to solve the most complex challenges in the blockchain space.

We are searching for an exceptional individual to join our team as a DeFi Research Analyst. In this role, you will utilize your deep knowledge and expertise in blockchain technology to conduct thorough technical due diligence on emerging protocols and technologies. Additionally, you will provide support to traders by contributing to tool development, monitoring markets for opportunities, and designing effective trading strategies.

As a DeFi Research Analyst, you will also play a critical role in developing quantitative models, exploring tokenomics, and providing insights to investment professionals regarding the impact of significant news events on token prices. Your passion for the blockchain industry and trading cryptocurrencies, coupled with strong data analysis and analytical skills, will be key to your success in this position.


Conduct comprehensive technical reviews of new and existing blockchain protocols and technologies, assessing the technical soundness, competitiveness, scalability, security, and potential risks.

Monitor news events related to blockchain and cryptocurrency, particularly those affecting Ethereum and Layer 2 solutions, evaluate their potential impact on token prices and the market, and contribute to daily and weekly newsletters.

Keep a close eye on market indicators and upcoming catalysts, inform traders of potential anomalies, conduct research, and suggest potential trading ideas.

Collect, clean, and analyze large datasets from the Ethereum blockchain using appropriate tools and techniques, extract relevant metrics and patterns to identify trends, correlations, and anomalies.

Communicate complex research findings and insights to technical and non-technical stakeholders, prepare comprehensive reports, presentations, and visualizations that effectively convey analytical results, implications, and recommendations.

Develop quantitative models and algorithms to support investment decisions, risk management strategies, and trading strategies related to Ethereum, including volatility models, price forecasting models, and portfolio optimization models.

Engage with clients by providing timely updates, addressing inquiries, and participating in meetings and conference calls, tailor research and recommendations based on clients' investment objectives, risk tolerance, and preferences.

Collaborate internally with other research, engineering, and business development teams on various projects and sales initiatives.


Bachelor’s or Master’s degree in a quantitative discipline such as Mathematics, Statistics, Computer Science, or a related field.

Strong understanding of Ethereum blockchain, smart contracts, decentralized finance (DeFi), and related technologies.

Experience working with large datasets, SQL, and NoSQL databases.

Proficient in programming languages such as Python, R, or MATLAB for data manipulation, analysis, and model implementation.

Knowledge of quantitative analysis techniques, statistical modeling, and data visualization tools is a plus.

Familiarity with cryptocurrency trading, derivatives, and risk management concepts is desirable.

Availability during UK Timezone.

Ability to thrive in a fast-paced, dynamic environment with tight deadlines.

Excellent problem-solving skills and attention to detail.

Strong communication and presentation skills to effectively convey complex concepts to diverse audiences.

Note: By applying to this position, you consent to the storage and processing of your personal information by Demerzel Solutions Limited (t/a Nethermind) for recruitment purposes. All data storing and processing adhere to the UK GDPR regulations. You can withdraw your consent at any time by contacting Please visit our privacy policy for more information.

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Full time

Founding Engineer - Pimlico

At our organization, we are a dedicated group of individuals with a mission to empower businesses and developers worldwide to utilize and contribute to decentralized systems.

Our areas of expertise encompass various domains, including Ethereum and Starknet protocol engineering, layer-2 solutions, cryptography and protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering.

We collaborate with esteemed organizations such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and more to address the most challenging problems in the blockchain industry.

Currently, our team consists of nearly 200 dedicated professionals working remotely from over 45 countries.

If you believe in our vision and are driven to make a difference, we are seeking a highly skilled DevOps Engineer to join us as a founding team member. In this role, you will be responsible for building, scaling, and maintaining the essential infrastructure that will process and relay user activity on Ethereum's transition to ERC-4337 smart accounts. This opportunity will contribute to the mainstream adoption of Ethereum by paving the way for its future.
Essential Responsibilities:
Within a typical workday, you may be involved in the following areas:

Infrastructure and cloud engineering

Development of backend blockchain scripts

Modifications to Ethereum nodes (e.g., geth, nethermind)

Smart contract development
Benefits of Joining:
By becoming a part of our team, you will have the opportunity to:

Tackle complex challenges surrounding account abstraction in Ethereum

Enhance your skills across multiple domains

Embrace best practices in engineering, security, and design

Constantly strive to improve the user experience of web3

Engage in clear and frequent communication

Join a team of passionate individuals who prioritize commitment and dedication

Experience a strong sense of accountability within the team

Make a substantial impact in your career development
This opportunity may not be suitable for you if:

You are unwilling to relocate to London. This position requires engineers who are actively involved in coding, designing, and reviewing code within a specific environment.

You prefer to work exclusively within your area of specialization and are uncomfortable stepping outside of your comfort zone (e.g., only wanting to code in Rust).

You are seeking part-time employment.

Please be aware that by applying for this role, you grant permission for Demerzel Solutions Limited (t/a Nethermind) to store and process your personal information solely for recruitment purposes related to both the listed job position and any other roles deemed suitable for you. Your data will be handled in accordance with the UK General Data Protection Regulation (GDPR). For further details on data storage and processing, please refer to our privacy policy. Your consent is voluntary and can be withdrawn at any time. If you have questions or wish to withdraw your consent, please contact us at

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Full time
London, UK

Cryptography Researcher

At our company, we are a collaborative team dedicated to expanding the accessibility and capabilities of decentralized systems for enterprises and developers worldwide.

Our areas of expertise include Ethereum and Starknet protocol engineering, layer-2 technology, cryptography research, decentralized finance (DeFi), security auditing, protocol research, real-time monitoring, smart contract development, and dapps and enterprise engineering.

We actively collaborate with organizations such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many others to solve complex challenges in the blockchain space.

Currently, our remote team consists of nearly 200 professionals located in over 45+ countries.

Please visit our website for a list of our available positions.

Are you the one?

We are seeking an exceptional candidate who specializes in cryptography research and has published in top cryptography, security, or blockchain conferences/journals. The ideal candidate will excel in working as part of a distributed research team, effectively communicate research ideas, and provide compelling arguments supported by security proofs. We value candidates who are confident in expressing their opinions and are eager to learn and discuss unfamiliar concepts.


As a cryptography researcher, you will contribute to ongoing cryptographic research on topics such as:

Zero-knowledge proofs, particularly zkSNARKs, zkSTARKs, folding schemes, and lookup arguments

Threshold encryption and signature schemes

Witness encryption


In-depth knowledge of cryptographic primitives, including threshold signatures, zero-knowledge proofs, folding schemes, lookup arguments, and witness encryption

Excellent ability to articulate thoughts precisely

Nice to Have

Engineering skills to create proof-of-concept implementations of developed protocols

Perks and Benefits


Fully remote work

Flexible working hours

By submitting your application, you consent to the storage and processing of your personal information by our company for recruitment purposes. All data handling is in accordance with the UK GDPR. For more information, please refer to our privacy policy. Your consent is voluntary and can be withdrawn at any time. If you have any questions or wish to withdraw your consent, please contact

Stay updated by following us on our social channels:




Click here to view our Privacy Policy.
Full time

Senior Software Engineer - Blockchain

Who we are

FalconX is a leading digital asset platform that specializes in serving institutional clients. Our comprehensive range of services includes trade execution, credit and treasury management, prime offering, and market making. With our global reach, innovative technology, and deep liquidity, we have facilitated over $1 trillion in client transactions. Our products and services are fully regulated, compliant, and trusted by our clients.

Our team is composed of skilled engineers, product builders, sales and trading professionals, operations experts, and business strategists. We embrace entrepreneurship and have experience working at top-tier companies such as Google, Apple, Paypal, Citadel, Bridgewater, and Goldman Sachs. Our core values guide us in aiming high, achieving bold outcomes, working cohesively, fostering speedy iteration, and embodying an entrepreneurial mindset.

Learning is a priority for us. While achieving tangible outcomes is crucial, we believe that continuous learning, both from success and failure, is key to sustaining our growth. In our rapidly evolving industry, there are abundant opportunities to experiment, grow, and learn together.


Join FalconX and contribute to the development of a more open financial system. Through the creation of robust trading, credit, and custody infrastructure, we enable thousands of institutions to enter the market and support a more accessible financial environment. The world's largest financial institutions rely on us for products that provide seamless, efficient, and secure access to the cryptocurrency sector, ranging from Wall Street to Silicon Valley.

FalconX is seeking a skilled Software Engineer with expertise in Blockchain technology to play a crucial role in developing a new and highly sought-after product line. This product line should seamlessly integrate with our cutting-edge Prime Brokerage platform. As a Software Engineer, you will be responsible for implementing critical blockchain infrastructure that supports major chains and protocols. This implementation should be designed for easy integration into our technology stack while prioritizing usability, operational efficiency, security, and stability. We seek an experienced professional with a deep understanding of blockchain, cryptocurrencies, wallets, and platforms to contribute to our vision of an open financial system.


Drive and lead architectural design and implementation of Web3 stack for major chains and protocols.

Develop and operate reliable services that enable customers to interact with various Blockchains, including Bitcoin, Ethereum, and others.

Foster innovation by safely adopting and testing new technologies and products in the blockchain industry.

Strive to generalize across different blockchains rather than specialize in one.

Integrate Blockchain data and tools into our Platform stack through repeatable and adaptable interfaces.

Take ownership of technical aspects and ensure technology aligns with our customers' needs.

Collaborate closely with Engineering and Product leadership to plan, estimate, prioritize, and launch new products and features.

Deliver against an ambitious product roadmap that supports strategic business initiatives.

Iterate rapidly to add new functionality while maintaining the highest level of quality.

Provide ongoing maintenance of the technology stack, ensuring reliability, performance, and user-friendliness.

Deliver prompt support to customer issues and facilitate effective triaging.

Provide expertise on the Blockchain ecosystem and our in-house implementation.

Preferred Qualifications

Proven Blockchain technical leadership and extensive experience working with various protocols and structures.

Track record of successfully shipping and maintaining multiple projects with a large user base for multiple years, continually iterating and improving.

Proficiency in writing production code using Java, TypeScript, Go, Python, or comparable programming languages.

Deep understanding of different consensus protocols utilized in blockchain technology.

Strong knowledge of modern software development methodologies and software design patterns.

Experience building scalable backend services.

Self-driven and proactive, eager to explore, iterate, and contribute to decision-making processes.

Familiarity with existing Blockchain-as-a-service stacks is a plus.

Knowledge of cryptographic signing algorithms, asymmetric cryptography, and key management is a plus.

Inclusivity Statement

FalconX strives to build a diverse, inclusive, equitable, and safe workplace for all individuals. Our job opportunities are open to people from all backgrounds, encouraging applications regardless of whether you possess all the listed background requirements, skills, or experiences.

To enhance inclusivity, FalconX recognizes that the responses available on the EEOC survey are limited. For legal purposes, we must use this language to meet federal regulations. However, we value your ability to answer our voluntary survey questions about identity truthfully, aligning with your self-identity.

FalconX maintains an equal opportunity employment policy, refraining from any form of discrimination against applicants or employees based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship status, or any other legally-protected basis recognized by federal, state, or local laws.

Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and applicable state or local laws. A reasonable accommodation refers to a modification in the usual procedures that ensures equal employment opportunities without imposing undue hardship on FalconX. If you require assistance to participate in the application process, please inform FalconX's People team at
Full time
Bangalore, India +2

Protocol Research Engineer

About Waku

Waku is an organization that is developing a public infrastructure called Waku. Waku is a messaging layer for Web3 that aims to provide decentralized, censorship-resistant, and privacy-preserving communication. With Waku, users can send and receive messages without worrying about surveillance or being deplatformed. Waku is being developed through three open-source implementations: Nwaku, Js-waku, and Go-waku.

We are looking for a Software Engineer who is passionate about Ethereum and decentralization. In this role, you will play a significant role in building and promoting Waku to other Web3 projects and developers.


As a Software Engineer, you will:

Research and develop secure messaging P2P protocols

Explore scalable solutions for P2P communications

Build distributed systems with incentives

Utilize layered protocols that are explicit about requirements, threat models, and trade-offs

Combine traditional technologies with cryptoeconomics to create a fault-tolerant system

Use libp2p to develop application-level protocols

Implement solutions based on academic research

Provide feedback on design decisions and participate in code reviews

Write code in Nim

Preferred Qualifications

To be successful in this role, you ideally have:

A passion for blockchain technology, privacy-preserving technology, and decentralization

A strong academic background

Experience with encryption and key exchange mechanisms

Proficiency in low-level or strongly-typed languages like C/C++/Go/Rust

Experience in building networking-heavy applications and P2P networking

Familiarity with message propagation in loosely connected networks

Knowledge of P2P building blocks such as gossiping, routing, and discovery (DHTs) and Nat traversal

Experience with designing incentive systems and writing/deploying smart contracts in Ethereum

A Master's degree in Computer Science with a focus on computer networks

Alignment with our principles

Bonus Qualifications

It would be a plus if you have:

A PhD degree related to computer networks

Contributed to an open-source project related to blockchain

Involvement in the Ethereum community

Experience with cryptography protocols such as OTR, X3DH, and Noise protocol

Experience with Nim

Familiarity with off-the-shelf networking stacks like libp2p/devp2p

Please note that meeting all of these criteria is not necessary. If you believe you are a great fit for the role despite not meeting all of the qualifications, feel free to explain why in your cover letter.

Hiring Process

The hiring process consists of the following steps:

Initial call with our People Ops team

Interview with a member of the Waku team

Pair programming session with a member of the Waku team

Interview with the Program Lead


We are open to paying in a mix of fiat and cryptocurrency.
Full time

Member of Technical Staff, Core Experience

At Anchorage Digital, our focus is on developing an advanced digital asset platform that enables institutions to engage with cryptocurrency. We are a regulated crypto platform that provides integrated financial services and infrastructure solutions to institutions. Our unique combination of secure custody, regulatory compliance, extensive product range, and exceptional client service sets us apart in the industry. We are looking for individuals who are humble, creative, and eager to learn as we continue to grow and diversify our team.

We offer the flexibility of remote work but also have office locations in New York City, Sioux Falls, Porto, Lisbon, and Singapore. For those who work remotely, we encourage and sponsor quarterly in-person collaboration days to foster teamwork and strengthen connections among our team members.

As a member of the Protocols team, you will play a crucial role in supporting new cryptoassets. At Anchorage Digital, we aim to incorporate all assets into our platform, which requires continuous learning and integration of new blockchains, technologies, and innovations. Developing a reliable and scalable layer for interacting with different blockchains is essential for our various business lines. As a team, we are committed to ongoing improvement and growth, and we value collaboration and shared expertise.

Key Responsibilities:

Research and integrate new cryptoassets into Anchorage Digital's platform.

Implement client-centric features such as staking, governance, and vesting.

Develop scalable abstractions across various crypto-networks.

Monitor and support assets through upgrades and network-wide issues.

Contribute code review and collaborate with the engineering team.

Key Requirements:

Experience building complex distributed systems.

Strong engineering skills, preferably with knowledge of the Go language.

Ability to create resilient services with minimal manual intervention.

Commitment to code quality and robust testing infrastructure.

Comfortable troubleshooting and debugging open-source projects.

Focus on end-user experience and overall business value.

Understanding of computer science fundamentals (concurrency, algorithms, and data structures).

Desirable attributes include creativity, humility, ambition, attention to detail, hard work, trustworthiness, eagerness to learn, methodical thinking, and tenacity.

While not required, the following experiences are a plus:

Applied cryptography background.

Familiarity with blockchain protocol white papers and cryptoasset innovations.

Finance industry knowledge.

At Anchorage Digital, we offer competitive compensation based on market rates and data. Our full-time employees receive market-leading salaries, significant equity, and a comprehensive perks and benefits package. Specific compensation will be discussed further during the interview process, taking into account the candidate's skills, abilities, and experience. We prioritize creating a positive working environment and provide exceptional benefits, including 100% health, dental, and vision coverage for employees and their dependents, as well as other perks and benefits. Our culture supports collaboration, and we value diverse perspectives and contributions from every team member.

As part of the Anchorage Village, our team comprises talented individuals from diverse backgrounds, combining expertise in platform security, financial services, and distributed ledger technology. Our shared goal is to build the future of finance and facilitate the secure movement of value in the evolving digital asset ecosystem. We are committed to fostering a welcoming and inclusive workplace for all employees, regardless of their background or identity. We celebrate our differences and believe that an environment where everyone feels respected, supported, and connected allows us to excel in our work.

Anchorage Digital is an equal opportunity employer, dedicated to providing equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or veteran status. We also consider qualified applicants with criminal histories in accordance with applicable laws. Anchorage Digital refers to the services offered by various subsidiaries of Anchor Labs, Inc., including Anchorage Hold, LLC, Anchorage Digital Bank National Association, Anchorage Lending CA, LLC, and Anchorage Digital Singapore Pte Ltd. We are committed to safeguarding your privacy and comply with privacy policies to protect your personal and financial information.
Full time

Senior Software Engineer, Applied Cryptography

About Us:

FalconX is a leading institutional digital asset platform. Our comprehensive range of services includes trade execution, credit and treasury management, prime offering, and market making. With our global presence, advanced technology, and deep liquidity, we have facilitated over $1 trillion in client transactions. Our products and services are heavily regulated, compliant, and trusted.

We are a diverse team consisting of engineers, product builders, sales and trading leaders, operations experts, and strategists. Our team members bring their entrepreneurial experiences from top companies like Google, Apple, Paypal, Citadel, Bridgewater, and Goldman Sachs. We embody our core values of thinking big, driving bold outcomes, working as one team, iterating with speed, and fostering an entrepreneurial spirit.

We prioritize continuous learning and believe that both success and failure provide valuable learning opportunities. Our industry is ever-evolving, providing endless possibilities for growth and learning together.

Your Impact:

At FalconX, you will play a vital role in creating a more open and accessible financial system. By developing trading, credit, and custody infrastructure, you will enable thousands of institutions to enter the market and support the cryptocurrency sector. Leading financial institutions across Wall Street and Silicon Valley will depend on you to deliver exceptional products that offer seamless, efficient, and secure access to the cryptocurrency market.

We are seeking a Senior Software Engineer specializing in Applied Cryptography to help introduce a new and highly sought-after product line at FalconX. You will be responsible for implementing critical security infrastructure that powers an MPC-based wallet, ensuring security, ease-of-use, operational efficiency, and seamless technical integration. We are looking for an experienced Software Engineer with a strong grasp of the latest cryptography and blockchain technologies to contribute to our vision of an open financial system.

Key Responsibilities:

Design, develop, optimize, and maintain an MPC-based wallet implementation, including threshold signing (TSS)

Contribute to the architectural design and implementation of our MPC-based cryptocurrency wallet

Take an iterative approach to develop high-demand products while maintaining strict security standards

Collaborate closely with Engineering and Product teams to plan, estimate, prioritize, and deliver new security-oriented products

Swiftly build and deliver features on an aggressive product roadmap that supports strategic business initiatives

Ensure the ongoing maintenance of the technology stack, prioritizing security and reliability

Provide timely support and effective triage for customer issues

Offer expertise on key management and cryptographic signing, specifically for our in-house implementation

Stay up to date on industry and technology trends

Preferred Qualifications:

Proven experience building systems that extensively utilize asymmetric cryptographic signing in real-world applications

Action-oriented mindset with unwavering dedication to product quality and security

Demonstrated ability to drive software development in a fast-paced and rapidly evolving environment

Strong proficiency in statically typed compiled languages, such as Go, Rust, C, and/or C++

Extensive familiarity with elliptic-curve cryptography (ECDSA, EdDSA), threshold signature schemes (TSS), multi-party computation (MPC), and RSA

Knowledge of Blockchain technologies, protocols, and structures

Understanding of existing threat vectors and evolving security landscapes

Adversarial mindset in cryptographic system design

Familiarity with Secure Enclaves and Trusted Execution Environments

Experience identifying and disclosing vulnerabilities in third-party code or products

Previous experience working on cryptocurrency wallet applications is a plus

The base salary for this role is expected to fall within the range of $200,000 to $245,000 USD. Other forms of compensation, including performance-linked bonuses, equity, and a competitive benefits package, are also available. The final compensation will be determined based on factors such as skillset, experience, and qualifications.

Inclusivity Statement:

FalconX is committed to fostering a diverse, inclusive, equitable, and safe work environment for all individuals. Our roles are open to candidates from all backgrounds, regardless of whether they meet all of the listed requirements, skills, or experiences.

To ensure inclusivity, we acknowledge that the options in the EEOC survey are limited. However, we encourage you to respond genuinely in our voluntary survey questions about your identity, aligning with your true self.

FalconX is an equal opportunity employer and does not discriminate against any applicant or employee based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, or any other legally protected basis under federal, state, or local law.

Applicants with disabilities may be entitled to reasonable accommodations under the Americans with Disabilities Act and other applicable state or local laws. A reasonable accommodation entails modifications to accommodate individuals without unfairly burdening FalconX. If you require assistance during the application process, please contact FalconX's People team at
Full time
New York City, USA +1

Senior Software Engineer, Backend

Circle is a fintech company that operates in the realm of digital currency and blockchain technology. We are at the forefront of the emerging internet of money, enabling value to be exchanged digitally on a global scale, swiftly and cost-effectively. Our innovative infrastructure, including the blockchain-based dollar called USDC, empowers businesses, institutions, and developers to leverage the possibilities presented by this digital ecosystem.

What We Offer:

At Circle, we prioritize transparency and stability in our operations. As we expand our presence across various jurisdictions, we aim for agility and effectiveness in everything we do. Our employees embody our core company values of being Multistakeholder, Mindful, Driven by Excellence, and High Integrity. In a remote work environment, we thrive on collaboration, with each individual making a meaningful contribution to our collective success. Our work culture encourages fresh ideas and ensures that everyone has a stake in our organization.

Role Overview:

We are currently seeking a highly skilled and experienced Senior Backend Engineer to join our dynamic team at Circle. As a Senior Backend Engineer, you will play a key role in designing and developing various services on our wallet infrastructure while maintaining the underlying code.

Your Responsibilities:

In this role, your main tasks will include:

Analyzing data, processes, and codes to identify areas for improvement and develop effective solutions

Creating services, APIs, and SDKs that align with data protection standards and facilitate the implementation of protection controls for other developers

Collaborating with front-end developers and other team members to establish objectives and enhance the functionality and coherence of the codebase

Involvement in the entire application lifecycle

Building reusable code of high quality for future use

Conducting whitebox tests and optimizing performance

Actively participating in conferences and educational programs

Keeping up to date with new and emerging technologies and providing training and support to team members

Taking on project leadership as required

Our Core Values:

In everything you do at Circle, you will embody our four core values:

Multistakeholder: Demonstrating dedication and commitment to our customers, shareholders, employees, families, and local communities

Mindful: Displaying respect, active listening, and attention to detail

Driven by Excellence: Relentlessly pursuing excellence, rejecting mediocrity, and working intensively to achieve goals and ensure customer success

High Integrity: Valuing open and honest communication, holding yourself to high moral and ethical standards, and rejecting manipulation, dishonesty, and intolerance


To thrive in this role, you should possess the following qualifications and skills:

Minimum of 4 years of professional software development experience, working with object-oriented languages such as Java and Go

Bachelor's degree or equivalent experience in Computer Science or a closely related field

Familiarity with Golang Web Frameworks like Gin and Fasthttp, and knowledge of Golang development tools like go mod and go lint

Experience with database operations, including MySQL, PostgreSQL, and NoSQL, and proficiency in operating databases through raw commands

Knowledge and experience in unit test development, with a focus on producing high-quality code

Strong understanding of microservices development cycle, programming techniques, and tools

Familiarity with cryptography is a plus

Excellent project and time management skills

Strong communication skills, with the ability to collaborate effectively with remote teams, share ideas, and present concepts

Self-starter mentality, thriving in a fast-paced environment and able to independently ship software that improves user experience while constantly improving your own work

Past experience leading technically on architecture and system design for teams of 2-4 members

Circle is proud to be an equal opportunity employer that values diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. In certain locations, Circle participates in the E-Verify Program as required by law.
Full time

Smart Contract Engineer

The Uniswap Protocol, a decentralized trading and market making protocol on Ethereum, is seeking a junior smart contract engineer to contribute to the development of the next generation of the protocol. This role involves designing and implementing smart contracts, researching and applying new smart contract paradigms, contributing to Ethereum Improvement Proposals (EIPs), participating in discussions from concept to launch, and maintaining backend services that interface with the Uniswap Protocol.


Contribute to the Uniswap protocol by designing and implementing smart contracts

Explore and implement new smart contract paradigms

Design and implement peripheral mechanisms for the Uniswap protocol

Contribute to Ethereum Improvement Proposals (EIPs)

Participate in discussions throughout the product development lifecycle

Build and maintain low-level backend services that interact with the Uniswap Protocol


1+ years of experience building and releasing Solidity contracts in a production environment

1+ years of experience working with blockchains, consensus algorithms, peer-to-peer (p2p) systems, or applied cryptography

Deep understanding of Ethereum, the Ethereum Virtual Machine (EVM), and general knowledge of the Ethereum roadmap

Strong comprehension of different blockchain designs, their tradeoffs, and the cryptography underlying blockchains

Strong foundation in computer science principles

Nice to haves:

Experience with Go, Rust, or a similar programming language

Degree in mathematics or computer science

Experience implementing complex mathematics in Solidity

Passion for unicorns :)

Knowledge of cloud infrastructure, networking, or orchestration with AWS (e.g., Docker, ECS, CDK, DynamoDB)

As an equal opportunity employer, Uniswap Labs offers a competitive minimum salary of $145,000-$195,000 per year plus additional compensation elements, including equity, tokens, and benefits. Full-time employees receive unlimited time off, fully paid medical, dental, and vision coverage for themselves and dependents, 401(k) participation, an annual $1,500 education stipend, up to 16 weeks of paid parental leave, a home office setup stipend for remote workers, daily lunches at the New York headquarters, and other eligible benefits.
Full time

Senior Engineer - Cryptography

About Us

At OKX, we are passionate about the transformative power of technology. Established in 2017, OKX is a prominent global exchange for cryptocurrency spot and derivatives trading. We leverage blockchain technology to redefine the financial landscape by providing diverse and advanced products, solutions, and trading tools. With a trusted user base of over 20 million individuals across 180 regions, OKX aims to offer an inclusive platform that enables everyone to explore the world of crypto. In addition to our cutting-edge DeFi exchange, we also provide OKX Insights, a research division at the forefront of cryptocurrency industry trends. By offering a wide range of crypto services and products and a commitment to innovation, our vision is to create a world of financial access empowered by blockchain and decentralized finance.

We strongly believe in fostering the growth and development of our people. We uphold an engaging culture that values teamwork, embraces change, and promotes ethical conduct. With an emphasis on creating a friendly, rewarding, and diverse environment, we ensure that every individual feels respected, valued, and empowered to reach their potential. Regardless of your background, we are dedicated to bringing out the best in you.

The Opportunity


Develop cryptographic libraries and MPC wallet applications.

Contribute to the implementation of cryptography technology, specifically zero-knowledge proofs.

Research web3 ecosystem technologies and write technical documentation.

Conduct code audits for wallet signatures.


Master's degree or higher in cryptography, mathematics, computer science, network security, or related fields.

Strong theoretical background in security, including proficiency in public key cryptography, symmetric and asymmetric cryptography principles, security protocol design, and blockchain and cryptography applications.

Familiarity with cryptographic theories such as zero-knowledge proofs, secure multiparty computation (MPC), threshold signatures, and homomorphic encryption.

Experience with basic cryptographic algorithms and relevant open-source libraries, ideally with applied research and development.

Proficiency in programming languages such as Golang, Java, C/C++, Rust.

Preferred publications at international cryptography conferences.

Fluent written and spoken English skills.

Perks & Benefits:

Competitive total compensation package.

Comprehensive insurance coverage for employees and their dependents.

Additional benefits to be discussed during the hiring process.
Full time
Hong Kong