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Senior Backend Developer

WintermuteRemote
London / Remote
Posted October 6, 2025
Any Experience

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Job Description

Senior Backend Developer - Revolutionize DeFi Trading at Wintermute

About Wintermute

Wintermute is building Bebop, a decentralized trading platform poised to redefine the DeFi user experience. We believe DeFi represents the future of finance, empowering innovation, economic freedom, and superior financial products. Our mission is to make high-performance trading tools accessible to everyone through intuitive and enjoyable products.

About You

You're deeply passionate about crypto, not just a casual observer. You thrive on building the next generation of trading applications and care deeply about the product as much as the code. You're a self-starter who takes ownership, moves quickly, and knows when to collaborate effectively.

Responsibilities

  • Design, develop, and maintain public APIs using Python, Rust, or similar languages.
  • Interact with and audit EVM smart contracts.
  • Contribute to the development and maintenance of web systems on cloud infrastructure.
  • Stay abreast of the evolving decentralized exchange landscape and its implications.
  • Apply your understanding of financial concepts, particularly in the context of trading and exchange.

Qualifications

  • Proven experience building public APIs with Python, Rust, or similar languages.
  • Strong command of working with EVM smart contracts, including interaction and auditing.
  • Deep understanding of decentralized exchanges and their current market.
  • Solid grasp of financial concepts, especially as they relate to trading and exchange.
  • Ability to run and maintain web systems on cloud infrastructure.

Bonus Points

  • Experience architecting, writing, and deploying smart contracts.
  • Expertise in diagnosing and resolving complex performance issues.
  • Familiarity with trading strategies and on-chain sleuthing techniques.
  • Knowledge of other blockchain ecosystems like Solana, Sui, Cosmos, etc.

Qualifications

Required:

  • Proven experience (3+ years) developing public APIs using Python, Rust, or a similar language.
  • Deep understanding of EVM smart contracts, including interaction, auditing, and security best practices.
  • Strong knowledge of decentralized exchanges (DEXs) and the current DeFi landscape.
  • Solid grasp of financial concepts, particularly in the context of trading and exchange mechanics.
  • Experience managing and maintaining web systems on cloud infrastructure (e.g., AWS, GCP, Azure).

Preferred:

  • Experience architecting, writing, and deploying smart contracts.
  • Proven ability to diagnose and resolve complex performance issues in high-traffic systems.
  • Familiarity with on-chain trading strategies and techniques.
  • Knowledge of other blockchain ecosystems such as Solana, Sui, or Cosmos.

Development

  • Design, develop, and maintain robust backend systems and APIs using Python, Rust, or similar languages.
  • Collaborate with the team to architect and implement efficient and scalable solutions for decentralized trading functionalities.
  • Write, test, and deploy smart contracts on the Ethereum Virtual Machine (EVM), ensuring security and functionality.
  • Interact with and audit existing smart contracts to identify vulnerabilities and optimize performance.

Infrastructure

  • Manage and maintain web systems deployed on cloud infrastructure, ensuring high availability and reliability.
  • Monitor system performance and proactively identify and resolve potential issues.
  • Implement and maintain CI/CD pipelines to streamline development and deployment processes.

Collaboration

  • Work closely with frontend developers, product managers, and other stakeholders to deliver high-quality user experiences.
  • Contribute to the technical roadmap and participate in discussions to shape the future of the platform.
  • Stay up-to-date with the latest advancements in blockchain technology and decentralized finance.

Selection Process

Wintermute's hiring process for a Senior Backend Developer begins with a review of submitted applications. Candidates whose experience aligns with the requirements, particularly in areas like API development, EVM smart contracts, and decentralized exchanges, are shortlisted.

Shortlisted candidates are then invited to complete a technical assessment, designed to evaluate their coding skills and understanding of blockchain technology. Successful candidates progress to a series of interviews, starting with a conversation with a member of the engineering team to discuss their technical expertise and experience.

Subsequent interviews involve deeper dives into specific projects and problem-solving scenarios, allowing candidates to demonstrate their ability to think critically and work collaboratively. Finally, candidates may meet with senior leadership to discuss their cultural fit and long-term career goals within Wintermute.

How to Apply

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Ensure that your contact information is correct and up-to-date, and accurately reflect your qualifications and experience.

Important Note

Submitting an application with incorrect or incomplete information could harm your chances of being selected for an interview.

About Wintermute

Wintermute is a leading quantitative trading firm specializing in decentralized finance (DeFi). Driven by a passion for innovation and a deep understanding of blockchain technology, Wintermute leverages cutting-edge algorithms and sophisticated trading strategies to navigate the dynamic DeFi landscape.

The company's mission is to provide liquidity and stability to DeFi markets, enabling the growth and adoption of decentralized financial products. Wintermute's team comprises experienced engineers, mathematicians, and finance professionals who are dedicated to pushing the boundaries of what's possible in the world of decentralized finance. With a focus on transparency, security, and efficiency, Wintermute is committed to building a more inclusive and accessible financial future.

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