DeFi Engineer

Ergonia; United Kingdom; Remote; GBP 70,000 - 90,000; Full time

Job summary

A crypto-native trading firm in the UK is looking for a DeFi Engineer to enhance their trading strategies across multiple chains. The ideal candidate will have over 4 years of software development experience and 2 years in DeFi, with the ability to deliver production-ready systems under tight deadlines. This role involves developing smart contracts, managing transactions, and contributing to system architecture. Strong understanding of DeFi mechanics and trading systems is essential.

Qualifications

• 4+ years of software development experience.
• 2+ years working in DeFi.
• Proven delivery of production-ready DeFi systems on Solana or EVM.

Responsibilities

• Build systems to read high-volume, low-latency data from blockchains.
• Design and implement production smart contracts on Solana or EVM.
• Contribute to architecture for exchange, execution, and data pipelines.
• Make decisions under pressure and deliver working systems quickly.

Skills

Software development

DeFi mechanics

Strong communication skills

Job description

About Ergonia

Ergonia is a crypto-native trading firm with deep experience across DeFi and CeFi. We operate some of the most sophisticated, highest-volume trading systems in DeFi and actively trade across major centralized venues as well. Our work spans market making, yield strategies, and advanced on-chain execution.

We’re hiring a DeFi Engineer to help us expand to more chains, more protocols, and new trading strategies. You’ll work closely with traders, quants, and engineers in a fast-moving, high-performance environment.

What You’ll Do

• On-Chain Data + Execution
  • Build systems to read high-volume, low-latency data from blockchains.
  • Send and manage transactions in performance-sensitive environments.
• Smart Contract / On-Chain Program Development
  • Design, implement, and deploy production smart contracts on Solana or EVM environments.
• System & Architecture Design
  • Contribute to end-to-end exchange, execution, and data-pipeline architecture.
• Pragmatic Delivery
  • Trading moves fast. You should be comfortable making decisions with imperfect information, handling trade-offs, and delivering working systems on tight timelines. We value engineers who can prioritise what matters, move quickly, and get things shipped. An ability to execute under pressure
• Remote Work Essentials
  • Reliable high-speed internet and a suitable workstation setup for sustained development and communication.

Qualifitications

• Experience
  • 4+ years of software development.
  • 2+ years working in DeFi.
  • Proven delivery of production-ready DeFi systems on Solana or EVM.
• Knowledge
  • Strong understanding of DeFi mechanics, trading systems, spot/margin trading, and on-chain execution.
• Mindset
  • Self-driven, highly motivated, and comfortable operating in a fast-moving environment.
  • Strong communication skills in English.

Bonus Points

• Experience with low-level blockchain runtime or transaction-pipeline optimizations.
• Experience landing high-volume transactions on Solana or EVM.
• Background in market making or high-frequency trading.