Overview

Join to apply for the Full-Stack Blockchain Engineer role at Superduper.

The Role

As a Full-Stack Engineer, you will shape and build an innovative user experience for the future of decentralised finance. You will automate and abstract away the complexities of on-chain swaps and liquidity management to provide a seamless trading experience for end users and to drive business growth in DeFi. This is a stealth-mode initiative supported by a well-funded company, offering a fast-paced environment with the resources to push the boundaries of technology. Your work will contribute to a product with a meaningful impact on DeFi, underpinned by the organisation’s financial strength and strategic direction.

Key Responsibilities

• Build, test, and support full-stack applications using blockchain technology.
• Prioritize the customer experience by solving UI/UX challenges for both crypto-curious and crypto-native users.
• Stay up to date with trends and technologies in DeFi, blockchain, and backend development to continuously improve the product.
• Collaborate with backend developers to ensure seamless interaction between frontend, APIs, and blockchain nodes for real-time data display.
• Contribute to continuous improvement of development processes and workflows.
• Conduct thorough code reviews, share best practices, and mentor junior team members.
• Follow security best practices, particularly concerning user data and blockchain interactions.
• Collaborate with design, marketing, and product teams to deliver new features according to the product roadmap.
• Write clean, maintainable, and efficient code.
• Conduct regular testing, debugging, and troubleshooting to enhance performance and usability.

Knowledge & Experience

• 5+ years of experience in a similar role.
• Expert in TypeScript with experience in Go or a strong desire to learn.
• Deep familiarity with React (including React Router) for building SPAs, SSR, or other rendering strategies.
• Prior experience designing and developing trading platforms, especially AMM-style DEXes.
• Experience developing complex microservice-based distributed systems.
• Experience architecting and implementing mobile-first, responsive, real-time front-ends (WebSockets, SSE, GraphQL subscriptions, etc.).
• Solid understanding of HTTP/HTTPS and REST APIs.
• Knowledge of gRPC and GraphQL (queries, mutations, subscriptions).
• Experience with Git in production settings.
• Experience with Docker and Kubernetes (or equivalents) for packaging and running microservices.
• Experience styling frontends with HTML, CSS, and frameworks like Tailwind, preferably following a style guide.

Ideal Candidate Profile

• A creative problem-solver eager to innovate in DeFi.
• Deep understanding of web technologies and blockchain fundamentals, especially in DeFi.
• Thrives in scrappy startup environments and embraces ambiguity.
• Owns complex problems and translates them into user-friendly solutions.
• Collaborative, able to build trust with both technical and non-technical stakeholders.
• Strong communication skills and a commitment to high-quality products under pressure.
• Understands speed and agility as competitive advantages without compromising quality.
• Passionate about DeFi with a commitment to continuous learning.

Nice to Haves

• Experience developing Solana smart contracts with Anchor.
• Experience developing EVM smart contracts using Solidity with Foundry or Hardhat.
• Experience with GraphQL schema design and low-latency data flows or gRPC-Web.
• Experience with wallet connectors (MetaMask, WalletConnect, Coinbase Wallet, etc.).
• Experience integrating on-chain data via web3 libraries (wagmi, ethers.js, viem, etc.).
• Familiarity with cloud platforms (AWS, GCP) and IaC tooling (Pulumi or Terraform).

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology
• Industries
• Entertainment Providers

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London, England, United Kingdom