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Aave

Non-custodial DeFi lending, borrowing, flash loans

Staff Backend Engineer - Aave App Vaults

Backend EngineeringConfirmed live in the last 24 hours
Full-timeNo salary listedRemote

About the Job

Requirements

  • At least 6 years of backend engineering experience, including ownership of complex production systems.
  • Strong backend programming skills; production experience with Rust is highly desirable, and strong systems experience in Go, C++, Zig, or Java is also considered.
  • Experience building distributed, event-driven, or data-intensive systems with clear reliability and performance requirements.
  • Strong knowledge of API or GraphQL design, PostgreSQL or another relational database, caching, queues, and observability.
  • Strong judgement around threat modelling, sensitive data, permissions, and operational risks of systems handling financial value.

Responsibilities

  • Design, build, and operate backend services for Aave App across onboarding, funding, savings, vaults, withdrawals, portfolio data, and customer communications.
  • Build vault management, monitoring, and rebalancing systems, including partner vault integrations, and work with Quant Engineers to turn reviewed allocation models into reliable production services.
  • Build transaction-orchestration and high-throughput 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 and improve testing, observability, alerting, incident response, and deployment practices across the backend codebase.
  • Work closely with mobile, web, product, design, protocol, smart contract, quant, 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.

Desired Qualifications

  • Production experience with Rust is highly desirable; strong systems experience in Go, C++, Zig, or Java will also be considered.
  • Experience with blockchain systems or other financial infrastructure involving real capital, particularly transaction signing, private-key or key-management flows, wallet infrastructure, and onchain transaction lifecycles.
  • Experience reading smart contracts and integrating with EVM-compatible networks, smart accounts, account abstraction, bridges, vaults, or DeFi protocols.
  • Experience designing constraint, optimization, solver, or allocation systems.
  • Experience building consumer fintech, savings, wallet, exchange, or payments products at meaningful scale.
  • Experience with cross-chain indexing, large-scale data ingestion, Kafka, ClickHouse, or similar infrastructure.

About the Company

Aave

Non-custodial DeFi lending, borrowing, flash loans

Aave is a decentralized finance protocol that lets people lend and borrow a wide range of cryptocurrencies without giving up custody of their funds. Depositors lock their crypto into liquidity pools managed by smart contracts on Ethereum and earn interest. Borrowers take loans against collateral that is overcollateralized, meaning the collateral value exceeds the loan value to reduce risk of default. The protocol also offers flash loans, which are uncollateralized and must be borrowed and repaid within the same blockchain transaction. Governance is handled by AAVE token holders who vote on proposals and updates. Compared with many competitors, Aave does not control user funds, supports multiple assets, and includes features like flash loans and on-chain governance, making it a non-custodial, community-driven liquidity protocol. The overall goal is to provide a transparent, programmable, permissionless way to manage crypto liquidity and borrowing across a wide set of assets.

Company size
51-200
Company stage
Early VC
Total funding
$15M
Headquarters
London, United Kingdom
Founded
2017

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