{"id":661858,"url":"https://alion.io/job/amsaccelerateit-senior-backend-engineer","title":"Senior Backend Engineer","company":{"id":668930,"name":"AMS Accelerate IT","domain":"amsaccelerateit.com","url":"https://alion.io/company/amsaccelerateit","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitee","truth_index":{"grade":"A","score":95,"open_postings":21,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":138,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bucharest, Romania"],"countries":["RO"],"hiring_countries":["RO"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":30000,"max_usd":76000,"period":"year","method":"role_seniority_country_cell","sample_n":15},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Go","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"TypeScript","optional":false},{"name":"AWS","optional":true},{"name":"CloudFormation","optional":true},{"name":"JavaScript","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-08-05T12:43:54Z","employer_posted_date":"2026-08-05","last_verified_at":"2026-11-02T21:26:35Z","board_verified":true,"closed_at":null,"days_open":89,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":88},"description":"Senior Backend Engineer\nAbout us\nWe're creating the foundational backend systems that power private market access, from secure authentication and transaction processing to portfolio management and regulatory compliance.\nThe Role\nWe're looking for a Senior Backend Engineer to own the systems where money moves and balances have to be correct - the ledger, transaction processing, and the settlement and reconciliation workflows behind our platform. This is the correctness core of what we build. If a balance is wrong, a transaction double-processes, or a reconciliation silently drifts, nothing else we build matters.\nYou'll design the double-entry ledger, the money-movement engine, and the long-running state machines that carry complex financial workflows to completion reliably over hours, days, or weeks. You'll reason about idempotency, concurrency, partial failure, and replay as a matter of habit, not as an afterthought.\nYou'll own core infrastructure decisions and set the standard for how we build financial systems.\nRequirements\nWhat You'll Do\nDesign and build the double-entry ledger and money-movement engine that all transactions reconcile against\nModel complex financial workflows as robust, observable state machines that run reliably over long periods\nGuarantee financial correctness under concurrency: idempotent operations, transactional integrity, and reconciliation that ties out to the cent\nHandle partial-failure and replay cases so no event is lost, duplicated, or applied twice\nBuild secure, well-versioned APIs\nDesign and optimize PostgreSQL schemas and data models\nDebug production issues and own the reliability of mission-critical financial workflows\nWhat We're Looking For\n5+ years of backend development on production systems\nDemonstrated money-movement correctness experience: you've built a ledger, settlement system, payments core, or transaction-processing system and can talk in detail about how you kept it correct\nConcurrency and idempotency depth: you can explain, from experience, how you handled double-processing, race conditions on balances, and replay\nReconciliation experience: you've built or owned systems that had to tie out exactly, and you know what happens when they don't\nStrong TDD practices: you write tests first and maintain comprehensive coverage\nDomain-Driven Design expertise: you model complex financial domains accurately\nDeep PostgreSQL knowledge: schema design, transactions, isolation levels, optimization\nStrong in a modern backend stack: we work in TypeScript/Node.js, Go and on the JVM ecosystem; we value real depth in either and the range to pick up the other\nCloud deployment experience\nStartup mentality: comfortable with ambiguity, high autonomy, driving solutions without detailed specs\nNice to Have\nPayments, banking, brokerage, or investment-platform systems experience\nSecurities, custody, or portfolio/NAV domain knowledge\nEvent-driven architectures and message queues\nInfrastructure as Code (Terraform, CloudFormation)\nUnderstanding of KYC/AML or compliance frameworks\nAccounting principles or financial modeling","description_format":"text","description_chars":3092,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Romania","iso":"RO","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Recruiting & Staffing","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-09-10T21:38:19Z"}],"visa":[],"liveness":{"score":70,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.78,"p_room":0.9,"age_days":88,"expected_fill_days":138,"reasons":["conf:2","win:mid"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/amsaccelerateit-senior-backend-engineer","json_url":"https://alion.io/job/amsaccelerateit-senior-backend-engineer.json","meta":{"generated_at":"2026-11-03T02:54:19Z","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":3907,"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":668930},"rest":"https://alion.io/mcp/rest/get_company?id=668930"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Famsaccelerateit-senior-backend-engineer"},{"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%2Famsaccelerateit-senior-backend-engineer"},{"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%2Famsaccelerateit-senior-backend-engineer"},{"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/amsaccelerateit-senior-backend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Famsaccelerateit-senior-backend-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":661858}},{"tool":"search_jobs","arguments":{"company":"amsaccelerateit.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":661858},"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. Docs: https://alion.io/developers"}}