Staff Backend Engineer

• Design, build, and operate backend services for Aave App across onboarding, funding, savings, withdrawals, portfolio data, and customer communications
• Build transaction-orchestration and indexing services that safely prepare, submit, monitor, and reconcile onchain activity across its full lifecycle
• Integrate with smart contracts, RPC providers, account infrastructure, payment partners, and other external services, designing for degraded dependencies and partial failure
• Lead technical reviews for high-value systems
• Improve testing, observability, alerting, incident response, and deployment practices across the backend codebase
• Work closely with mobile, web, product, design, protocol, security, data, and operations teams to deliver coherent consumer experiences
• Raise the engineering standard through hands-on delivery, pragmatic architecture, clear documentation, and reviews that help other engineers grow
• Own a broad technical area and turn ambiguous product goals into reliable production systems
• Build services supporting customer transactions, sensitive account flows, and financial data across onchain and offchain infrastructure

• 6+ years of backend engineering experience, including ownership of complex production systems
• Strong backend programming skills
• Production experience with Rust highly desirable; strong systems experience in Go, C++, or Java also considered
• Experience building distributed, event-driven, or data-intensive systems with clear reliability and performance requirements
• Strong knowledge of API/GraphQL design
• Experience with PostgreSQL or another relational database
• Knowledge of caching, queues, and observability
• Experience with blockchain systems, particularly transaction signing, private-key or key-management flows, wallet infrastructure, and onchain transaction lifecycles, highly desirable
• Strong judgement around threat modelling, sensitive data, permissions, and operational risks of systems handling financial value
• Nice to have: experience with EVM-compatible networks, smart accounts, account abstraction, bridges, or DeFi protocols
• Nice to have: experience building consumer fintech, savings, wallet, exchange, or payments products at meaningful scale
• Nice to have: experience with cross-chain indexing, large-scale data ingestion, Kafka, ClickHouse, or similar infrastructure

• Full-time employment
• Remote work in the EU
• Equal opportunities workplace
• Working environment in which everyone can feel safe and valued
• Opportunity to work on globally accessible financial services and decentralized finance products
• High-ownership role with broad technical responsibility
• Opportunity to contribute to trusted, high-quality products and economic opportunities