Software Engineer - Custody Services
Status
New York, USA
Full time
Office
Compensation is not specified
Role
Software Engineer
Description
BitGo is a leading provider of secure and scalable solutions for the digital asset economy, catering to investors and developers with regulated custody, staking, trading, and core infrastructure services. Established in 2013 during the early days of crypto, BitGo is renowned for its pioneering work in multi-signature wallets and innovative TSS technology for enhanced security in comparison to traditional MPC offerings. Today, BitGo serves as the premier custodian for over 600 tokens across various blockchains, offering a comprehensive suite of services that encompass asset holding and utilization.
BitGo is seeking a dedicated Software Engineer to bolster its Custody Services team, primarily focused on constructing a custodial platform to facilitate trading, staking, and management of crypto assets for businesses and clients.
This role is located onsite at the BitGo office in NY, NY.
Responsibilities:
- Design and develop scalable and robust APIs, libraries, and services to enhance the custodial platform.
- Take ownership of functionality and scalability features from inception to integration, ensuring a seamless customer experience.
- Collaborate with cross-functional teams to introduce new features and enhancements.
- Write clean and efficient code, ensuring application performance and quality.
- Identify and resolve bottlenecks and bugs, emphasizing continuous improvement.
- Stay abreast of new technologies to optimize development efficiency.
- Participate in code reviews and support a culture of ongoing enhancement.
- Provide guidance and mentorship to peers through code reviews and knowledge sharing.
- Work closely with product managers, designers, and engineers to refine product requirements.
Skills & Experience:
Required:
- 2-6 years of proven back-end and server-side development experience.
- Proficiency in algorithm design, problem-solving, and complexity analysis.
- Strong expertise in TypeScript, Node.js, Kotlin, PostgreSQL, and MongoDB.
- Experience in RESTful API design, microservices, and service-oriented architectures.
- Knowledge of unit and functional testing, debugging, version control (Git/GitHub), and CI tools.
- Ability to adapt quickly in a fast-paced environment.
- Bachelor’s degree in computer science or similar technical fields.
- Interest and understanding of cryptocurrencies and blockchain technology.
Preferred:
- Prior experience developing consumer-facing crypto products.
- Demonstrated expertise in building public-facing APIs.
- Full-stack development skills, familiarity with React.
- Experience collaborating with clients or business partners.
- Familiarity with digital wallets, clearing, settlement, trading systems, etc.
Why Join BitGo?
BitGo offers a dynamic environment where passion, innovation, technical skills, and collaboration drive disruption in the financial industry. Join a team that values excellence, ownership, craftsmanship, and transparent communication. Be a part of a global transformation in financial markets with competitive compensation, equity, and a comprehensive benefits package.
Pay Transparency Notice: Based on level and location, this role typically offers a base salary ranging from $150,000 to $180,000 USD per year, along with equity, an annual performance bonus, and comprehensive benefits.
At BitGo, you can expect:
- Competitive salary, bonus, and stock options.
- Comprehensive health insurance coverage for employees and their dependents.
- Generous 401k company match and other perks like paid leave.
- Commuter benefits, free meals, snacks, and a vibrant startup environment.
Cryptocurrencies are reshaping financial services. Be part of the team that leads this transformative journey with BitGo.
Skills Required
BitGo
Website
www.bitgo.comCompany size
Not specified
Location
United States
Description
Not specified
Status
Metatheory
Senior DevRel Engineer
Mumbai, India +4
Mumbai, India +4
Full time
Remote
We are looking for a technically strong Developer Relations Engineer to help external teams build confidently on top of our DeFi infrastructure.
In this role, you will work closely with developers who integrate our smart contracts, APIs, and protocols. Your mission is to make complex systems understandable, integrations smooth, and feedback actionable for the core engineering team.
Responsibilities
• Support developers integrating our protocols and APIs
• Create clear technical content such as guides, examples, demos, and reference implementations
• Act as a technical bridge between the developer community and internal product and engineering teams
• Identify recurring integration issues and help improve tooling and documentation
• Represent the protocol in technical discussions, workshops, hackathons, and conferences
• Collaborate with ecosystem partners such as wallets, DeFi apps, and infrastructure providers
Qualifications
• Practical experience with Solidity and smart contract interaction
• Strong understanding of DeFi concepts and Ethereum based systems
• Ability to explain complex technical topics in a clear and structured way
• Experience working with developers or technical communities
• Comfort reading and reasoning about production smart contracts, security considerations, and gas efficiency
Why You’ll Love Working With Us
• Join a young, creative team in a fast-paced and supportive environment
• We’re open to new ideas if you’ve got a vision, pitch it and make it happen
• Enjoy competitive pay that matches your skills and experience
• Be part of a company that’s shaping the future of DeFi
• Take time when you need it we offer unlimited vacation days
• Get fully compensated for your work gear we’ll set you up for success
• Travel with us! We host an annual team retreat at a top international location
Hiring Process
• Test assignment: a practical exercise relevant to the role
• Technical interview: to discuss your solution, skills, and problem-solving
• HR interview: to talk about culture fit, expectations, and the role
Why this role matters
You will directly shape how developers experience the protocol. Your work will influence adoption, integration quality, and long term ecosystem growth by making powerful technology accessible and reliable for others to build on.
You don’t need to meet every requirement to apply - don’t worry. We value potential, motivation, and willingness to learn just as much as experience.
If this role excites you, we’d love to hear from you.
In this role, you will work closely with developers who integrate our smart contracts, APIs, and protocols. Your mission is to make complex systems understandable, integrations smooth, and feedback actionable for the core engineering team.
Responsibilities
• Support developers integrating our protocols and APIs
• Create clear technical content such as guides, examples, demos, and reference implementations
• Act as a technical bridge between the developer community and internal product and engineering teams
• Identify recurring integration issues and help improve tooling and documentation
• Represent the protocol in technical discussions, workshops, hackathons, and conferences
• Collaborate with ecosystem partners such as wallets, DeFi apps, and infrastructure providers
Qualifications
• Practical experience with Solidity and smart contract interaction
• Strong understanding of DeFi concepts and Ethereum based systems
• Ability to explain complex technical topics in a clear and structured way
• Experience working with developers or technical communities
• Comfort reading and reasoning about production smart contracts, security considerations, and gas efficiency
Why You’ll Love Working With Us
• Join a young, creative team in a fast-paced and supportive environment
• We’re open to new ideas if you’ve got a vision, pitch it and make it happen
• Enjoy competitive pay that matches your skills and experience
• Be part of a company that’s shaping the future of DeFi
• Take time when you need it we offer unlimited vacation days
• Get fully compensated for your work gear we’ll set you up for success
• Travel with us! We host an annual team retreat at a top international location
Hiring Process
• Test assignment: a practical exercise relevant to the role
• Technical interview: to discuss your solution, skills, and problem-solving
• HR interview: to talk about culture fit, expectations, and the role
Why this role matters
You will directly shape how developers experience the protocol. Your work will influence adoption, integration quality, and long term ecosystem growth by making powerful technology accessible and reliable for others to build on.
You don’t need to meet every requirement to apply - don’t worry. We value potential, motivation, and willingness to learn just as much as experience.
If this role excites you, we’d love to hear from you.
Payment in Crypto
Ment Tech
Senior Software Engineer (Blockchain)
Mumbai, India +3
Mumbai, India +3
Full time
Remote
About MentTech
MentTech is a forward-thinking technology company dedicated to transforming how mentoring and learning are delivered in the digital age. By combining advanced tools, intelligent systems, and a human-first approach, MentTech helps individuals, teams, and organizations harness the power of mentorship to unlock potential, build skills, and achieve lasting growth.
The Role
We are seeking a Smart Contract Developer responsible for ensuring that game listings within MentTech work properly and ensuring compliance with all game store policies.
Key Responsibilities:
• Architect, implement, and deploy secure smart contracts for an on-chain Play-to-Earn GameFi ecosystem
• Lead contract design decisions with a focus on robustness, auditability, gas efficiency, and resilience to attack vectors
• Mentor/junior developers: perform code reviews, establish standards, best practices in security & testing
• Collaborate cross-functionally with game designers, backend, QA, and security teams to align smart contract features with product roadmap
Qualifications:
• 2+ years hands‐on experience developing & deploying smart contracts (Solidity / EVM or equivalent) in production environments
• Track record of writing secure contracts, familiarity with common vulnerabilities (reentrancy, integer over/underflow, front-running, flash loans, etc.)
• Experience with audits, formal verification, fuzz testing, or other advanced contract assurance methods
• Strong test suite / CI workflow skills; comfortable using tools like Hardhat, Foundry, Truffle etc.
• Solid understanding of GameFi mechanics and how on-chain economics work
Bonus Points:
• Experience on multiple EVM chains or Layer-2 / sidechains
• Knowledge of cross-chain bridges, oracles, NFTs, tokenomics design
• Contributions to open-source security tooling or prior audit reports or published code you’re proud of
Why join MentTech?
At MentTech, we cultivate a culture of flexibility, autonomy, and the freedom to make a real impact on the broader Web3 ecosystem. Experience the advantages of a fully remote working environment where your expertise and contributions are rewarded with competitive compensation tailored to your role and project influence.
Ment Tech Labs
• Employee Equity & Incentives: Unlock future growth with equity and other potential incentives.
• Entrepreneurial Culture: Join a collaborative environment where we innovate together as partners.
• Cutting-edge Innovation: Work at the forefront of gaming and blockchain.
• Key Strategic Projects: Be part of transformative initiatives that are redefining the gaming landscape.
• Remote Flexibility: Enjoy a truly flexible, fully remote work setup that supports your lifestyle.
• Talented Team: Collaborate with a team of passionate, driven, and skilled professionals.
• Community Impact: Contribute to the growth and success of the Web3 and gaming communities.
• Flexible Payment Options: Receive payments in crypto or fiat, tailored to your preference.
• Growth Opportunities: Access valuable learning experiences and development paths.
MentTech Labs, Inc. is an equal opportunities workplace that doesn’t discriminate based on race, ethnicity, gender, ancestry, national origin, religion, sex, sexual orientation, gender identity, age disability, veteran status, genetic information, marital status, or any other legally protected status.
MentTech is a forward-thinking technology company dedicated to transforming how mentoring and learning are delivered in the digital age. By combining advanced tools, intelligent systems, and a human-first approach, MentTech helps individuals, teams, and organizations harness the power of mentorship to unlock potential, build skills, and achieve lasting growth.
The Role
We are seeking a Smart Contract Developer responsible for ensuring that game listings within MentTech work properly and ensuring compliance with all game store policies.
Key Responsibilities:
• Architect, implement, and deploy secure smart contracts for an on-chain Play-to-Earn GameFi ecosystem
• Lead contract design decisions with a focus on robustness, auditability, gas efficiency, and resilience to attack vectors
• Mentor/junior developers: perform code reviews, establish standards, best practices in security & testing
• Collaborate cross-functionally with game designers, backend, QA, and security teams to align smart contract features with product roadmap
Qualifications:
• 2+ years hands‐on experience developing & deploying smart contracts (Solidity / EVM or equivalent) in production environments
• Track record of writing secure contracts, familiarity with common vulnerabilities (reentrancy, integer over/underflow, front-running, flash loans, etc.)
• Experience with audits, formal verification, fuzz testing, or other advanced contract assurance methods
• Strong test suite / CI workflow skills; comfortable using tools like Hardhat, Foundry, Truffle etc.
• Solid understanding of GameFi mechanics and how on-chain economics work
Bonus Points:
• Experience on multiple EVM chains or Layer-2 / sidechains
• Knowledge of cross-chain bridges, oracles, NFTs, tokenomics design
• Contributions to open-source security tooling or prior audit reports or published code you’re proud of
Why join MentTech?
At MentTech, we cultivate a culture of flexibility, autonomy, and the freedom to make a real impact on the broader Web3 ecosystem. Experience the advantages of a fully remote working environment where your expertise and contributions are rewarded with competitive compensation tailored to your role and project influence.
Ment Tech Labs
• Employee Equity & Incentives: Unlock future growth with equity and other potential incentives.
• Entrepreneurial Culture: Join a collaborative environment where we innovate together as partners.
• Cutting-edge Innovation: Work at the forefront of gaming and blockchain.
• Key Strategic Projects: Be part of transformative initiatives that are redefining the gaming landscape.
• Remote Flexibility: Enjoy a truly flexible, fully remote work setup that supports your lifestyle.
• Talented Team: Collaborate with a team of passionate, driven, and skilled professionals.
• Community Impact: Contribute to the growth and success of the Web3 and gaming communities.
• Flexible Payment Options: Receive payments in crypto or fiat, tailored to your preference.
• Growth Opportunities: Access valuable learning experiences and development paths.
MentTech Labs, Inc. is an equal opportunities workplace that doesn’t discriminate based on race, ethnicity, gender, ancestry, national origin, religion, sex, sexual orientation, gender identity, age disability, veteran status, genetic information, marital status, or any other legally protected status.
Payment in Crypto
John Waldron
🚀 Hiring Solana Developers – Pump.fun
Montana City, USA
Montana City, USA
Full time
Remote
Solana Developer Needed – Pump.fun Style Platform (Starter Code Available)
Hi,
I’m reaching out from Valiant Solution LLC. We’re currently working with a U.S.-based client who is an experienced crypto professional and we’re looking for a skilled Solana developer to help build a platform similar to Pump.fun.
We already have a basic codebase from GitHub that the developer can start from, so the project will mainly involve customizing, improving, and completing the functionality rather than building everything from scratch.
Key requirements:
• Experience with Solana smart contracts (Rust / Anchor)
• Knowledge of token launch mechanics and bonding curves
• Experience with Solana Web3 integrations
• Ability to work with an existing codebase and extend it
If this sounds interesting, please reply with:
• Your Solana development experience
• Links to relevant projects or GitHub
• Your availability for a quick discussion
Looking forward to connecting.
Best regards,
Valiant Solution LLC
Hi,
I’m reaching out from Valiant Solution LLC. We’re currently working with a U.S.-based client who is an experienced crypto professional and we’re looking for a skilled Solana developer to help build a platform similar to Pump.fun.
We already have a basic codebase from GitHub that the developer can start from, so the project will mainly involve customizing, improving, and completing the functionality rather than building everything from scratch.
Key requirements:
• Experience with Solana smart contracts (Rust / Anchor)
• Knowledge of token launch mechanics and bonding curves
• Experience with Solana Web3 integrations
• Ability to work with an existing codebase and extend it
If this sounds interesting, please reply with:
• Your Solana development experience
• Links to relevant projects or GitHub
• Your availability for a quick discussion
Looking forward to connecting.
Best regards,
Valiant Solution LLC
Payment in Crypto
Neonflick
Web3 Fullstack Developer
Part time
Remote
🌐 About Us
Neonflick is a tech organization specializing in Web3 development.
We believe Web3 solutions are not as popular as they could be — mainly due to complexity. Our mission is to simplify the user experience and make decentralized technology more accessible and easy to use for everyone.
🚀 About the Role
We are looking for a Web3 Fullstack Developer who is passionate about decentralized technologies and excited to contribute to building meaningful Web3 products. You will work on developing new products, improving existing ones, and fixing bugs, all while proposing innovative ideas to enhance our platform.
🔹 Responsibilities
Develop functional and user-friendly Web3 products
Improve and optimize existing products and features
Identify and fix bugs or issues in the system
Propose and implement new ideas for product development
Collaborate with the team to ensure high-quality software delivery
🔹 Requirements
Strong interest in Web3 / blockchain / decentralized technologies
Fullstack development experience (frontend + backend)
Experience with smart contracts and decentralized frameworks is a plus
Problem-solving skills and attention to detail
Ability to work independently and proactively
🔹 What You Get
Early-stage involvement in a Web3 tech organization
Influence over product development and feature design
Opportunity to build experience and a portfolio in the Web3 space
Potential long-term collaboration and future compensation as the project grows
A chance to contribute to making Web3 simpler and more accessible
⚠️ Important
This is an unpaid position. We are looking for someone motivated by vision, learning, and long-term impact rather than immediate salary.
If you are passionate about Web3 and building meaningful decentralized products, we’d love to hear from you.
Neonflick is a tech organization specializing in Web3 development.
We believe Web3 solutions are not as popular as they could be — mainly due to complexity. Our mission is to simplify the user experience and make decentralized technology more accessible and easy to use for everyone.
🚀 About the Role
We are looking for a Web3 Fullstack Developer who is passionate about decentralized technologies and excited to contribute to building meaningful Web3 products. You will work on developing new products, improving existing ones, and fixing bugs, all while proposing innovative ideas to enhance our platform.
🔹 Responsibilities
Develop functional and user-friendly Web3 products
Improve and optimize existing products and features
Identify and fix bugs or issues in the system
Propose and implement new ideas for product development
Collaborate with the team to ensure high-quality software delivery
🔹 Requirements
Strong interest in Web3 / blockchain / decentralized technologies
Fullstack development experience (frontend + backend)
Experience with smart contracts and decentralized frameworks is a plus
Problem-solving skills and attention to detail
Ability to work independently and proactively
🔹 What You Get
Early-stage involvement in a Web3 tech organization
Influence over product development and feature design
Opportunity to build experience and a portfolio in the Web3 space
Potential long-term collaboration and future compensation as the project grows
A chance to contribute to making Web3 simpler and more accessible
⚠️ Important
This is an unpaid position. We are looking for someone motivated by vision, learning, and long-term impact rather than immediate salary.
If you are passionate about Web3 and building meaningful decentralized products, we’d love to hear from you.
Jonathan Hunter
Growth Marketing Lead (User & Volume Growth Focus)
Full time
Remote
We’re hiring a high-impact Growth Marketing Expert who can drive real user acquisition and measurable volume growth — not just manage community channels.
This is not a traditional community manager role. We’re looking for someone with a proven track record of onboarding users, increasing engagement, and directly contributing to product adoption and transaction/activity volume.
What You’ll Own
Develop and execute user growth strategy end-to-end
Drive measurable increases in active users and platform volume
Build acquisition funnels (organic + partnership-driven)
Optimize onboarding flows and activation metrics
Lead social presence across Twitter/X and other platforms
Represent the project in Twitter Spaces and relevant community events
Launch and manage growth campaigns, incentives, and referral programs
Track and report on growth KPIs (CAC, activation rate, retention, volume impact)
Must-Have Experience
Proven track record of growing users and/or trading/activity volume in a startup, Web3, fintech, or SaaS environment
Demonstrated ability to turn social presence into measurable growth
Experience hosting or speaking in Twitter Spaces and similar forums
Strong understanding of growth funnels, activation metrics, and retention loops
Data-driven mindset (comfortable with analytics tools and experimentation)
Bonus Points
Experience in crypto, trading platforms, or financial products
Experience designing referral or incentive systems
Existing relevant audience/network
What We Care About
We don’t care about vanity metrics (likes, impressions).
We care about:
Active users
Retention
Conversion
Volume growth
Sustainable acquisition loops
If you’ve scaled a product before and can show real numbers behind your impact, we want to talk.
This is not a traditional community manager role. We’re looking for someone with a proven track record of onboarding users, increasing engagement, and directly contributing to product adoption and transaction/activity volume.
What You’ll Own
Develop and execute user growth strategy end-to-end
Drive measurable increases in active users and platform volume
Build acquisition funnels (organic + partnership-driven)
Optimize onboarding flows and activation metrics
Lead social presence across Twitter/X and other platforms
Represent the project in Twitter Spaces and relevant community events
Launch and manage growth campaigns, incentives, and referral programs
Track and report on growth KPIs (CAC, activation rate, retention, volume impact)
Must-Have Experience
Proven track record of growing users and/or trading/activity volume in a startup, Web3, fintech, or SaaS environment
Demonstrated ability to turn social presence into measurable growth
Experience hosting or speaking in Twitter Spaces and similar forums
Strong understanding of growth funnels, activation metrics, and retention loops
Data-driven mindset (comfortable with analytics tools and experimentation)
Bonus Points
Experience in crypto, trading platforms, or financial products
Experience designing referral or incentive systems
Existing relevant audience/network
What We Care About
We don’t care about vanity metrics (likes, impressions).
We care about:
Active users
Retention
Conversion
Volume growth
Sustainable acquisition loops
If you’ve scaled a product before and can show real numbers behind your impact, we want to talk.
Payment in Crypto