Staff Backend Engineer (DeFi)

Location: London, England / Remote, EU. Workplace: Hybrid

Company

hirify.global builds infrastructure for DeFi protocols and vault products.

What you will do

• Design, build, and operate backend infrastructure for new DeFi protocols and vault products.
• Build vault management, curation, and constraint-based allocation systems.
• Develop high-throughput blockchain indexers and data-ingestion pipelines.
• Design performant, stable, and well-documented APIs for applications and internal systems.
• Turn reviewed quantitative models into reliable production services in collaboration with Quant Engineers.
• Integrate backend systems with smart contracts and onchain state while taking technical ownership of projects.

Requirements

• 5–8+ years of backend engineering experience, including ownership of production systems.
• Strong Rust experience; C++, Go, Zig, or another systems language may substitute.
• Experience building high-performance, data-intensive, or event-driven backend systems.
• Strong PostgreSQL knowledge.
• Experience with blockchain, DeFi, financial infrastructure, or another environment involving real capital.
• Ability to work independently with strong judgment around correctness, reliability, and security.

Nice to have

• Experience with cross-chain blockchain indexing or large-scale data ingestion.
• Experience designing constraint, optimization, solver, or allocation systems.
• Experience reading smart contracts and integrating with EVM-based protocols.
• Hands-on experience with Kafka and ClickHouse or similar analytical databases.

Culture & Benefits

• Work with a small, highly technical team.
• Significant ownership and autonomy across offchain infrastructure and onchain integrations.
• Close collaboration with Quant Engineers and smart contract engineers.
• Full-time hybrid work arrangement based in London or remotely within the EU.