{"id":3043408,"url":"https://alion.io/job/codedecoders-senior-backend-engineer-payment-systems","title":"Senior Backend Engineer - Payment Systems","company":{"id":4458377,"name":"CodeDecoders","domain":"codedecoders.io","url":"https://alion.io/company/codedecoders","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_company_offices","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":83000,"max_usd":212000,"period":"year","method":"global_role_seniority_cell","sample_n":7270},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AWS","optional":false},{"name":"Java","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Redis","optional":false},{"name":"Spring Boot","optional":false},{"name":"TypeScript","optional":false},{"name":"C#","optional":true},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-21T21:09:06Z","employer_posted_date":null,"last_verified_at":"2026-10-21T21:09:06Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"CodeDecoders is looking for a Senior Backend Engineer with hands-on experience building real payment and transaction systems.\nWe are currently delivering a regulated cross-border digital asset platform involving remittances, payouts, settlements, transaction processing, banking and payment-provider integrations, wallets, KYC/KYB integrations, reconciliation, and operational tooling.\nThis is not a role focused on simple checkout integrations. We are looking for engineers who have dealt with real-money transaction states, idempotency, retries, duplicate prevention, provider timeouts, unknown transaction statuses, reconciliation, refunds/reversals, settlement workflows, and production incidents involving financial transactions.\nYou will work closely with the product and engineering team and own backend modules end-to-end, including architecture, database design, implementation, integrations, testing, and production reliability.\nOur primary backend stack is Node.js, TypeScript, Express/NestJS, PostgreSQL, Redis, and AWS. Strong payment-system experience matters more to us than matching every technology. Engineers coming from Java/Spring Boot, Python, or .NET are also welcome if they have meaningful payment, banking, wallet, ledger, remittance, lending, crypto/stablecoin, or transaction-processing experience.\nWe particularly value engineers who can explain how they have designed transactions, balances, ledger entries, settlements, reconciliation processes, and safe failure recovery in production.\nFor Himalayas candidates, we are open to remote contract/freelance engagements.\nOriginally posted on Himalayas","description_format":"text","description_chars":1627,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-21T23:28:30Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":29,"reasons":["seen:0","win:early"],"computed_at":"2026-10-22T06:10:10Z"},"pay":null,"html_url":"https://alion.io/job/codedecoders-senior-backend-engineer-payment-systems","json_url":"https://alion.io/job/codedecoders-senior-backend-engineer-payment-systems.json","meta":{"generated_at":"2026-10-22T21:55:00Z","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":6733,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":4458377},"rest":"https://alion.io/mcp/rest/get_company?id=4458377"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcodedecoders-senior-backend-engineer-payment-systems"},{"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%2Fcodedecoders-senior-backend-engineer-payment-systems"},{"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%2Fcodedecoders-senior-backend-engineer-payment-systems"},{"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/codedecoders-senior-backend-engineer-payment-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcodedecoders-senior-backend-engineer-payment-systems"}]}