Blocksize
Germany
Senior Blockchain Infrastructure Engineer & Operations Specialist
Blockchain Full-time Mid-Senior level 5d ago
- AI
- Ansible
- AWS
- Bash
AI Summary
Seeking a Full-Stack Engineer with 3–5+ years in crypto/Web3 (DEXs, DeFi, wallets) to build scalable DeFi platform integrations. Responsibilities include frontend/backend development (Next.js, React, Node.js, TypeScript), protocol integrations, and shaping product direction. Requirements include hands-on experience with DeFi protocols, crypto APIs, and a startup mindset.
Key Highlights
Fully remote role based in Germany
Ownership of core product features from day one
Integration with DeFi protocols, DEX aggregators, cross-chain bridges, and crypto APIs
Key Responsibilities
Lead full-stack development and deliver product features from conception to implementation
Architect and build integrations with DeFi protocols, DEX aggregators, cross-chain bridges, and data providers
Develop responsive and performant user interfaces using Next.js, React, and TailwindCSS
Design and maintain scalable backend services using Node.js, TypeScript, PostgreSQL, Redis, and WebSockets
Collaborate with the founding team to define technical direction and product strategy
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Technical Skills Required
Benefits & Perks
Fully remote work environment
Ownership and responsibility over core product features
Direct impact on user experience and platform design
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Nice to Have
Experience with account abstraction (e.g., ERC-7702 smart wallets)
Deep understanding of DEX and AMM mechanics, cross-chain bridges, and liquidity management
Job Description
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Full-Stack Engineer (Web3-DeFi) based in Germany.
This fully remote opportunity is ideal for a full-stack engineer passionate about blockchain technology and decentralized finance.
You’ll take ownership of core product features from day one, working closely with the founding team. The role combines frontend and backend development to create seamless, consumer-grade DeFi experiences.
You’ll integrate with protocols, DEX aggregators, cross-chain bridges, and crypto APIs across multiple blockchain ecosystems.
Accountabilities
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