{"id":720875,"url":"https://alion.io/job/shyftlabs-software-developer","title":"Software Developer","company":{"id":685982,"name":"Shyftlabs","domain":"shyftlabs.io","url":"https://alion.io/company/shyftlabs","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":91,"open_postings":25,"ghost_share":0,"stale_share":0.36,"repost_share":0,"time_to_fill_p50_days":39,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Noida, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Alembic","optional":false},{"name":"Amazon S3","optional":false},{"name":"Asyncio","optional":false},{"name":"AWS","optional":false},{"name":"Celery","optional":false},{"name":"FastAPI","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Pydantic","optional":false},{"name":"Pytest","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"SQLAlchemy","optional":false},{"name":"AWS Bedrock","optional":true},{"name":"LLM","optional":true},{"name":"pgvector","optional":true},{"name":"RabbitMQ","optional":true}],"status":"live","first_seen_at":"2026-08-21T10:18:18Z","employer_posted_date":"2026-08-21","last_verified_at":"2026-10-28T20:44:26Z","board_verified":true,"closed_at":null,"days_open":68,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":67},"description":"Role Overview\nSimfluent's platform automates the full recruitment lifecycle across five AI agents, a 22-stage candidate pipeline, and integrations with Lever ATS, SendGrid, and multiple job boards. As a Software Developer on the Platform team, you will build and own features across the backend API, async worker infrastructure, and third-party integrations that keep the platform running for enterprise tenants.\nFour years of experience means you have shipped real features in production, you understand why tests matter, and you can design a data model before you open your code editor. You work independently on well-scoped problems, raise quality concerns early, and know when to ask for help before a decision becomes expensive to reverse. This is a backend-first role with a strong Python focus.\nResponsibilities\nAPI Layer: Build and maintain REST API endpoints using FastAPI - recruiter pipeline actions, candidate management, job configuration, and third-party integration webhooks.\nData Modelling: Design and implement PostgreSQL data models - schema design, indexing, query optimisation via EXPLAIN ANALYZE, and Alembic migration management for new features.\nMulti-Tenancy: Build and maintain multi-tenant data access patterns - every query correctly scoped by tenant_id, no cross-tenant data leakage, new features inherit the isolation model from day one.\nAsync Workers: Implement async worker tasks using AWS SQS and Celery - task design, retry logic, idempotency, and dead-letter queue handling for pipeline automation flows.\nIntegrations: Build and extend third-party integrations - Lever ATS webhooks, SendGrid outbound and inbound parse, IMAP polling for the job-watch inbox, and AWS S3 for document storage.\nTesting: Write comprehensive test coverage - unit tests, integration tests, and async/webhook handler tests as a standard part of your workflow.\nCode Reviews: Participate in architecture discussions, code reviews, and technical documentation - raising quality concerns clearly and constructively.\nOn-call: Contribute to on-call rotation - diagnose and resolve production incidents, write runbooks, and conduct post-mortems.\nRequirements\nPython\nFastAPI\nasyncio\nSQLAlchemy\nPydantic\nPostgreSQL\nDatabase Schema Design\nDatabase Indexing\nEXPLAIN ANALYZE\nAlembic\nMulti-tenant Architecture\nAWS SQS\nCelery\nMessage Queue Systems\nREST API Integration\nOAuth\nWebhooks\npytest\nAsync Testing Patterns\nSystems Design\nPreferred Skills\nReact\npgvector\nVector Databases\nAWS Bedrock\nLLM Integration\nMulti-tenant SaaS Architecture\nNew Skil\nQualifications\n4 years of Python backend engineering experience in production environments\nProduction-grade service development experience (not scripts)\nExperience with async programming using asyncio\nStrong database design and optimization skills\nExperience with async task systems (SQS, Celery, or RabbitMQ)\nExperience building third-party API integrations\nStrong testing discipline with comprehensive test coverage\nSystems thinking approach to software design\nUnderstanding of failure modes, edge cases, and observability","description_format":"text","description_chars":3066,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Consulting & Integration"],"lifecycle":[{"event":"open","at":"2026-09-11T07:11:31Z"}],"visa":[],"liveness":{"score":25,"band":"fade","label":"Fading","p_open":1,"p_active":0.691,"p_room":0.36,"age_days":67,"expected_fill_days":39,"reasons":["conf:3","velocity","win:tail","crowd:"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/shyftlabs-software-developer","json_url":"https://alion.io/job/shyftlabs-software-developer.json","meta":{"generated_at":"2026-10-29T00:31:52Z","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":654,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":685982},"rest":"https://alion.io/mcp/rest/get_company?id=685982"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fshyftlabs-software-developer"},{"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%2Fshyftlabs-software-developer"},{"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%2Fshyftlabs-software-developer"},{"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/shyftlabs-software-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fshyftlabs-software-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":720875}},{"tool":"search_jobs","arguments":{"company":"shyftlabs.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":720875},"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"}}