Blockchain jobs in France

Location: Paris 13th (Station F)
Start: Flexible (From September 2025)
Duration: Full-time (CDI) or project-based (Freelance)

Introduction to the Ecosystem

Are you ready to tackle one of the most fundamental problems in decentralized finance? The rise of concentrated liquidity pools like Uniswap v3 has brought unprecedented efficiency to DeFi, but it has also introduced significant complexity and risks for liquidity providers—impermanent loss being a major challenge.

At Lobster, we are on a mission to revolutionize liquidity management in decentralized exchanges. Our groundbreaking strategy neutralizes exposure to one of the assets in a liquidity pool, enabling delta-neutral liquidity provision that protects capital while maintaining efficiency.

We're not just building another DeFi protocol; we're solving a core challenge in the ecosystem with innovative solutions that redefine on-chain liquidity standards. After three years of intensive research and development, our strategies and models have been tested and proven to reduce risk, improve capital efficiency, and scale in collaboration with top decentralized exchanges (DEXs).

This is your opportunity to join a founding team with a strong reputation in the Web3 ecosystem. With trusted partners and cutting-edge solutions, we're building the next evolution of DeFi. Let's redefine decentralized finance—together. 🦞

Why Lobster?

Decentralized finance has grown exponentially in recent years, but the complexity it introduces for investors and liquidity providers remains a significant barrier. At Lobster, we've developed mathematical models and autonomous strategies that eliminate impermanent loss and enable delta-neutral liquidity provision.

Our protocol addresses real pain points in the DeFi space, empowering liquidity providers with tools to minimize risk and maximize efficiency. Joining Lobster means working alongside a team that is shaping the future of decentralized finance with solutions built to scale globally.

• Build and Maintain Real-time Blockchain Indexers:
  Design and implement high-performance indexers to capture on-chain events in real-time across multiple EVM blockchains. Parse blocks, logs, and transactions while managing rate limiting and optimizing RPC connections to minimize costs.
• Develop Critical Data Infrastructure: Build robust infrastructure to feed our market-making and arbitrage algorithms with minimal latency. Ensure data accuracy and reliability for trading strategies operating on decentralized exchanges and lending protocols.
• Connect and Integrate with Lobster Ecosystem:
  Establish seamless connections between data infrastructure, storage servers, and VMs running Lobster algorithms. Develop performant APIs for automatic live feed transmission to various system components.
• Scale and Optimize Performance:
  Set up and maintain nodes on major EVM blockchains. Implement monitoring and alerting systems to ensure service continuity. Prepare infrastructure for future scaling while optimizing for growing data volumes.

• Programming skills:
  - Rust (mandatory): Expertise in multithreading/async programming and performance optimization
  - TypeScript (mandatory): For integrations and API development
  - SQL (mandatory): For structured data management and complex queries
• Blockchain & DeFi Knowledge:
  - Deep understanding of blockchain architecture, especially EVM-based systems
  - Experience parsing blocks, logs, and transactions efficiently
  - Expertise with RPC management and node operations
  - Strong knowledge of AMMs (Automated Market Makers) and DeFi protocols
  - Experience with rate limiting and cost optimization strategies.
• Data Engineering:
  - Real-time data pipeline architecture and implementation
  - Low-latency system design and optimization
  - Time-series data handling at scale
  - Experience with critical systems requiring high availability
• Nice to Have:
  - Familiarity with other blockchain ecosystems (Solana, Starknet, etc.)
  - Deep knowledge of lending protocols
  - Experience in algorithmic trading or market making
  - Open-source contributions in blockchain/DeFi space
• Personal Requirements:
  - Minimum 2 years of specific experience in blockchain data engineering
  - Proven track record with production DeFi projects
  - Entrepreneurial mindset with ability to prioritize high-impact work
  - Strong autonomy while being a collaborative team player
  - Excellent analytical and problem-solving skills
  - Fluent in English (written and spoken)
  - Passion for DeFi and understanding of business implications

• Work directly on core infrastructure that powers Lobster's trading strategies
  - Join a talented team of Web3 experts with strong ecosystem reputation
  - Tackle cutting-edge problems in DeFi with real impact
  - Flexible work arrangement with ~2 days remote per week
  - Office at Station F, heart of Paris tech ecosystem
  - Opportunity to grow with a high-potential startup
  - Competitive compensation based on experience and skills