Senior Software Engineer
About You
We are seeking individuals with a strong background in programming language theory and automated reasoning, who are passionate about applying theoretical computer science concepts to real-world problems. Successful candidates will have a proven track record of solving complex computational challenges and delivering valuable tools that are actively used by end-users. Collaboration is key, as you will be expected to work closely with peers, share ideas, engage in brainstorming sessions, and provide constructive feedback. Adaptability is crucial in this dynamic environment, as you will be required to take on various roles and responsibilities.
About the Company
CertiK is a frontrunner in blockchain security, leveraging Formal Verification technology to secure smart contracts and blockchains. Founded by esteemed Computer Science professors from Yale and Columbia University, CertiK has audited and protected assets totaling over $500B, encompassing numerous prominent blockchain projects.
About the Role
The role entails designing and developing tools that automatically validate the accuracy of smart contracts or detect security vulnerabilities and bugs. Positions are available for software engineers at different levels of seniority, with job titles and duties aligned with individual experience and expertise. You will be part of a diverse team of programming language experts, contributing to the creation of tools based on cutting-edge techniques such as symbolic model checking, SAT/SMT solving, abstract interpretation, data flow analysis, and deductive verification. The role offers the opportunity to be involved in all phases of tool development, from ideation to implementation and continuous enhancements. The team culture is characterized by strong support and collaboration, providing an enriching environment for professional development.
Responsibilities
- Lead the end-to-end development of features, spanning user interface implementation, backend logic, and integration with smart contracts and blockchains within a fast-paced, product-focused setting.
- Design and develop modern, responsive full-stack Web3 applications that cater to user needs.
- Construct, deploy, and maintain robust backend systems, APIs, and microservices for processing blockchain data, facilitating user interactions, and enabling real-time functionality.
- Analyze and process on-chain and off-chain data, integrating secure and scalable Web3 tools to enable wallet connectivity.
- Create engaging front-end interfaces featuring interactive data visualizations, animations, best UI/UX practices, and SEO strategies to enhance user engagement and retention.
- Stay informed about advancements in the Web3 ecosystem, including developer tools, blockchain protocols, and web technologies, to improve stack efficiency and ensure architectural modernization.
Requirements
- Master's degree in Computer Science or a related field
- Advanced knowledge of algorithms, data structures, operating systems, computer architecture, and network protocols
- Proficiency in blockchain fundamentals, encompassing decentralized networks, Web3 infrastructure, and smart contract development (EVM/Web3.js)
- Expertise in frontend development using React, JavaScript, TypeScript, HTML, and CSS, as well as backend development involving API architecture, server-side development, and caching strategies
- Experience with cloud services, particularly AWS, S3, and EC2
Compensation: The anticipated annual compensation for this role ranges between $132,000 - $180,000, contingent upon the skills and experience of qualified candidates.
CertiK extends various benefits to full-time employees, including medical, vision, and dental insurance, a 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA, FSA, flexible paid time off, and holidays. Additionally, CertiK offers a commission program for business development sales roles.
During the recruitment process, CertiK ensures compliance with federal law, requesting all hires to verify identity and eligibility to work in the US and complete the necessary employment eligibility verification form.
CertiK is committed to maintaining an inclusive workplace and upholds equal employment opportunities, refraining from discriminating against applicants or employees based on various factors. The company is open to considering qualified applicants with criminal histories in accordance with relevant laws and regulations.
CertiK encourages diversity within its teams and expects all employees to actively support diversity efforts. In parts of the hiring process, the company may utilize AI tools to assist with activities such as application review, resume analysis, or responses assessment; however, final hiring decisions are made by human evaluators. For further information on data processing, applicants are welcome to reach out for clarification.
Business Development (Vietnam)
Senior DevRel Engineer
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.
🚀 Hiring Solana Developers – Pump.fun
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
Web3 Fullstack Developer
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.
Growth Marketing Lead (User & Volume Growth Focus)
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.