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The Associate Technical Lead - Web 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.
- Department
- Engineering
- Employment Type
- Full Time
- Location
- Colombo
- Workplace type
- Hybrid
Responsibilities
- Design and develop scalable front-end components using React and Next.js.
- Drive the development of scalable systems, ensuring best practices in software architecture and code quality across the stack.
- Design and consume robust RESTful APIs, ensuring seamless data flow between complex frontend states and third-party financial or Web3 services.
- Obsess over frontend vitals, including lighting-fast load times, smooth user interactions, and efficient client-side state management to support a rapidly growing user base.
- Collaborate on deploying and scaling Next.js applications via AWS, leveraging workflows to maintain high deployment velocity.
- Act as the primary technical partner for UI/UX designers, translating high-fidelity wireframes into a scalable, reusable component library and ensuring pixel-perfect production features.
- Conduct rigorous code reviews and provide technical guidance to junior developers to foster a culture of engineering excellence.
- Troubleshoot complex technical challenges and ensure smooth operation of applications post-deployment.
Qualifications & Skills
- Experience: 6+ years of full-stack development experience, with a track record of taking ownership of features from conception to deployment.
- Proficiency in React, Next.js, and Node.js. Mastery of modern CSS (Tailwind/Styled components) and state management (Zustand/TanStack Query). Experience with Go will be an added advantage.
- Experience with (or a deep interest in) blockchain, smart contracts, and decentralized applications (DApps).
- Solid hands-on experience with AWS or GCP (S3, EC2, Lambda, etc.) and an understanding of serverless architectures.
- Comfort working in a fast-paced environment using Scrum or Kanban methodologies.
- A natural ability to guide peers, communicate technical trade-offs to non-technical stakeholders, and write clear documentation.
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:
Secomd Technical Interview
Find out more
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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.