{"id":802664,"url":"https://alion.io/job/aave-staff-backend-engineer-aave-app","title":"Staff Backend Engineer, Aave App Vaults","company":{"id":38,"name":"Aave","domain":"aave.com","url":"https://alion.io/company/aave","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":78,"open_postings":3,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":79,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["ES"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":82000,"max_usd":176000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2415},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Aave","optional":false},{"name":"Rust","optional":false},{"name":"Smart Contracts","optional":false},{"name":"Account Abstraction","optional":true},{"name":"Apache Kafka","optional":true},{"name":"C++","optional":true},{"name":"ClickHouse","optional":true},{"name":"DeFi","optional":true},{"name":"Go","optional":true},{"name":"GraphQL","optional":true},{"name":"Java","optional":true},{"name":"PostgreSQL","optional":true}],"status":"live","first_seen_at":"2026-09-07T16:01:45Z","employer_posted_date":"2026-09-07","last_verified_at":"2026-11-03T16:05:23Z","board_verified":true,"closed_at":null,"days_open":57,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":57},"description":"About us\nAave Labs began with a simple question: how do we make financial services like borrowing, saving, and earning more accessible globally?\nWe built the Aave Protocol, now the world’s largest and most trusted onchain lending market, connecting decentralized finance with individuals, traditional finance, and fintech.\nToday, we build trusted, high-quality products that expand access to lending, credit, and savings globally\nOur culture\nWe build trusted products that help people access and discover economic opportunities.\nWe hold a high bar for quality and craftsmanship. No detail is too small. Trust depends on it.\nWe’re a global team building products people can actually use, turning complex technology into something simple and reliable.\nWe stay aligned, move quickly, and think long term, while keeping teams lean and focused on impact.\nAbout the Role\nWe're hiring a Staff Backend Engineer to build the backend infrastructure behind Aave App, a consumer savings app that makes onchain financial products simple, secure, and intuitive, and the vault products that power it.\nThe role focuses on the systems between blockchain protocols and the consumer experiences built around them. This includes account and wallet services, transaction orchestration, vault management, monitoring and rebalancing, partner vault integrations, high-reliability blockchain indexing, balances and yield data, funding and withdrawal flows, notifications, and performant, well-documented APIs for mobile and web clients.\nYou'll own a broad technical area with high ownership and turn ambiguous product goals into reliable production systems. Correctness, security, and operability are critical: the services you build will support customer transactions, sensitive account flows, user funds, and financial data across both onchain and offchain infrastructure.\nYou'll also work closely with Quant Engineers, who own the financial models, assumptions, and calibration behind vault allocation and rebalancing, and with smart contract engineers, who own onchain integration and enforcement. Backend owns the production systems, data pipelines, and services that run those models.\nHow you can make an impact:\nDesign, build, and operate backend services for Aave App across onboarding, funding, savings, vaults, withdrawals, portfolio data, and customer communications\nBuild vault management, monitoring, and rebalancing systems, including partner vault integrations, and work with Quant Engineers to turn reviewed allocation models into reliable production services\nBuild transaction-orchestration and high-throughput indexing services that safely prepare, submit, monitor, and reconcile onchain activity across its full lifecycle\nIntegrate with smart contracts, RPC providers, account infrastructure, payment partners, and other external services, designing for degraded dependencies and partial failure\nLead technical reviews for high-value systems and improve testing, observability, alerting, incident response, and deployment practices across the backend codebase\nWork closely with mobile, web, product, design, protocol, smart contract, quant, security, data, and operations teams to deliver coherent consumer experiences\nRaise the engineering standard through hands-on delivery, pragmatic architecture, clear documentation, and review that helps other engineers grow\nLet's connect if you have:\n6+ years of backend engineering experience, including ownership of complex production systems\nStrong backend programming skills. Production experience with Rust is highly desirable, but we'll also consider strong systems experience in Go, C++, Zig, or Java\nExperience building distributed, event-driven, or data-intensive systems with clear reliability and performance requirements\nStrong knowledge of API/GraphQL design, PostgreSQL or another relational database, caching, queues, and observability\nExperience 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, is highly desirable\nStrong judgement around threat modelling, sensitive data, permissions, and the operational risks of systems handling financial value\nNice to haves:\nExperience reading smart contracts and integrating with EVM-compatible networks, smart accounts, account abstraction, bridges, vaults, or DeFi protocols\nExperience designing constraint, optimization, solver, or allocation systems\nExperience building consumer fintech, savings, wallet, exchange, or payments products at meaningful scale\nExperience with cross-chain indexing, large-scale data ingestion, Kafka, ClickHouse, or similar infrastructure","description_format":"text","description_chars":4723,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Smart Contracts & Security","Cryptocurrencies","DeFi"],"lifecycle":[{"event":"open","at":"2026-09-12T08:38:12Z"}],"visa":[],"liveness":{"score":29,"band":"fade","label":"Fading","p_open":1,"p_active":0.383,"p_room":0.75,"age_days":56,"expected_fill_days":79,"reasons":["conf:3","win:late"],"computed_at":"2026-11-03T05:54:40Z"},"pay":null,"html_url":"https://alion.io/job/aave-staff-backend-engineer-aave-app","json_url":"https://alion.io/job/aave-staff-backend-engineer-aave-app.json","meta":{"generated_at":"2026-11-03T19:34:37Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":1815,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":38},"rest":"https://alion.io/mcp/rest/get_company?id=38"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Faave-staff-backend-engineer-aave-app"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Faave-staff-backend-engineer-aave-app"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Faave-staff-backend-engineer-aave-app"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/aave-staff-backend-engineer-aave-app\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Faave-staff-backend-engineer-aave-app"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":802664}},{"tool":"search_jobs","arguments":{"company":"aave.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":802664},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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