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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Kast | Colombo, Sri Lanka | $87k - $150k | |||
Jack & Jill | New York, NY, United States | $200k - $300k | |||
Kast | Colombo, Sri Lanka | $87k - $150k | |||
Kast | Colombo, Sri Lanka | $87k - $150k | |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. | | by Metana Bootcamp Info | |||
Kast | Singapore, Singapore | $87k - $150k | |||
Kast | Colombo, Sri Lanka | $87k - $150k | |||
Kast | Singapore, Singapore | $87k - $150k | |||
Kast | Colombo, Sri Lanka | $87k - $150k | |||
Blockus | New York, NY, United States | $81k - $112k | |||
Blockus | New York, NY, United States | $81k - $112k | |||
Okx | Remote | $126k - $144k | |||
Okx | Remote | $63k - $90k | |||
Okx | Remote | $121k - $180k | |||
Bitpanda | Remote | $106k - $115k | |||
Bitmex | Remote | $106k - $114k |
The Software Engineer - Fullstack plays a key role in building and scaling KAST. This is a high-ownership position where you’ll take responsibility for meaningful work from day one, collaborate closely with cross-functional teams, and help turn ambitious goals into real-world outcomes.
Your mission is to move fast and raise the bar. You’ll operate in a dynamic, high-growth environment, navigate ambiguity with confidence, and contribute to systems, products, or processes that scale with the company. Quality matters, speed matters, and ownership is non-negotiable.
This role is for builders, people who take initiative, think in systems, and care deeply about doing great work. If you’re excited about working at the intersection of technology, execution, and impact, you’ll feel right at home at KAST.
- Application Deadline
- June 24, 2026
- Department
- Engineering
- Employment Type
- Full Time
- Location
- Colombo
- Workplace type
- Hybrid
Responsibilities
- Design and develop back-end components for services using technologies such as Go, Node.js, or Python.
- Build and maintain RESTful APIs, microservices, and integrations with third-party services.
- Write performant, maintainable code following best practices in software design.
- Participate actively in code reviews, providing and receiving constructive feedback.
- Troubleshoot and resolve technical issues independently.
- Deploy, scale, and manage applications using cloud platforms like AWS or Google Cloud (GCP).
- Write and maintain unit and integration tests to ensure application reliability.
- Collaborate with product and design teams to translate requirements into technical implementations.
- Maintain technical documentation for developed features and services.
- Identify and implement improvements to existing backend services and processes.
Qualifications & Skills
- 2–3 years of experience in full-stack or backend-focused development.
- Proficient in at least one backend technology such as Go, Python, or Java.
- Experience with modern web technologies and frameworks such as React.js or Next.js is a plus.
- Solid understanding of RESTful APIs, microservices architecture, and third-party integrations.
- Experience with relational (e.g., MySQL, PostgreSQL) and/or NoSQL (e.g., MongoDB) databases.
- Working experience with cloud platforms like AWS or GCP.
- Experience with Git and modern version control workflows.
- Familiarity with CI/CD pipelines and automated testing.
- Understanding of application security fundamentals.
- Experience with Agile methodologies, including Scrum or Kanban.
Bonus Skills:
- Experience with blockchain development or Web3 technologies.
- Familiarity with serverless architecture (e.g., AWS Lambda, GCP Cloud Functions).
- Exposure to GraphQL APIs.
- Experience with containerization and orchestration (Docker, Kubernetes).
- AI-first development practices.
About KAST
KAST is redefining stablecoin banking for global citizens, crypto professionals, Web3-native businesses, and high-inflation markets hungry for USD-backed banking. Backed by top-tier global investors and led by the ex-APAC CEO of Circle, our leadership team spans Circle, Airwallex, Revolut, Wise, Grab, Zoom, AWS, and leading OTC desks. We’ve scaled from zero to nearly a million users at ridiculous speed.
Apply Now
Our Hiring Process
Stage 1:
First Technical Interview
Stage 2:
Second Technical Interview
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What does a React developer in web3 do?
A React developer in the context of web3 is a developer who is using the React JavaScript library to build user interfaces for decentralized applications (dApps) that run on the Ethereum blockchain
These dApps often use smart contracts to facilitate transactions and other interactions on the Ethereum network
Overall, the role of a React developer in web3 involves using your skills in React development to help build cutting-edge decentralized applications that leverage the power of the Ethereum blockchain
As a React developer in web3, some of your responsibilities might include:
- Integrating the dApp with the Ethereum blockchain. This might involve using tools like web3.js and Ethers.js to connect to the Ethereum network and interact with smart contracts.
- Building the user interface for a dApp using React. This could involve creating components for the various elements of the dApp, such as buttons, forms, and other input elements.
- Implementing features that are specific to decentralized applications, such as handling cryptocurrency transactions and displaying data from the blockchain in a user-friendly way.
- Collaborating with other members of the development team, such as blockchain engineers and designers, to ensure that the dApp functions properly and meets the needs of the end users.