Staff Backend Engineer
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Job Description
Staff Backend Engineer building secure backend infrastructure for Aave App, Aave Labs' consumer savings product. Designing transaction orchestration, blockchain indexing, wallets, APIs, and financial data systems.
Responsibilities:
- 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
Requirements:
- 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
Benefits:
- 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
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