{"id":2107483,"url":"https://alion.io/job/mutt-data-backend-platform-engineer-pythonfastapi","title":"#10 Backend Platform Engineer Senior (Python/FastAPI)","company":{"id":19043,"name":"Mutt Data","domain":"muttdata.ai","url":"https://alion.io/company/mutt-data","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":81,"open_postings":13,"ghost_share":0,"stale_share":0.769,"repost_share":0,"time_to_fill_p50_days":33,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Buenos Aires, Argentina"],"countries":["AR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":55000,"max_usd":131000,"period":"year","method":"role_seniority_country_cell","sample_n":8},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Databricks","optional":false},{"name":"FastAPI","optional":false},{"name":"LangChain","optional":false},{"name":"LangGraph","optional":false},{"name":"Machine Learning","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Python","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"JavaScript","optional":true},{"name":"React.js","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-08T18:52:34Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-12T03:20:59Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Join Our Remote Data Products & Machine Learning Startup!\nAt Muttdata, we build innovative Data Products and Machine Learning solutions that help companies solve complex business challenges. As a fast-growing, remote-first startup, we're passionate about technology, collaboration, and continuous learning.\nWe are looking for a Backend Platform Engineer to join our team and work within the AI Platform team of a large-scale organization\nThis team maintains the backend platform behind the organization's AI models and agents, including the services that integrate with agentic AI, observability, and MCP servers. Hybrid work model.\nWhat We Do\nLeveraging our expertise, we build modern Machine Learning systems for demand planning and budget forecasting.\nDeveloping scalable data infrastructures, we enhance high-level decision-making, tailored to each client.\nOffering comprehensive Data Engineering and custom AI solutions, we optimize cloud-based systems.\nUsing Generative AI, we help e-commerce platforms and retailers create higher-quality ads, faster.\nBuilding deep learning models, we enhance visual recognition and automation for various industries, improving product categorization, quality control, and information retrieval.\nDeveloping recommendation models, we personalize user experiences in e-commerce, streaming, and digital platforms, driving engagement and conversions.\nOur Partnerships\nAmazon Web Services\nAstronomer\nDatabricks\nOur Values\n We are Data Nerds\n We are Open Team Players\n We Take Ownership\n We Have a Positive Mindset\nCurious about what we’re up to? Check out our case studies and dive into our blog post to learn more about our culture and the exciting projects we’re working on!\nResponsibilities\nDesign and develop backend services with FastAPI.\nIntegrate the platform with agentic AI services.\nMaintain the platform for agentic models, including its observability.\nDevelop and manage MCP servers throughout their entire lifecycle.\nDesign and operate relational and non-relational databases.\nApply good authentication and security practices.\nCollaborate across the full stack (frontend, backend, and AI).\nRequired Skills\n5+ years of experience with Python and strong command of its best practices.\nAdvanced knowledge of FastAPI or similar frameworks.\nExperience with relational and non-relational databases.\nKnowledge of platforms for agentic models and of observability.\nKnowledge of MCP development and lifecycle.\nFamiliarity with LangChain and LangGraph.\nExperience integrating agentic AI services.\nBasic knowledge of cloud.\nExperience working in platform teams.\nGood authentication and security practices.\nCuriosity, a drive to stay up to date, and willingness to work across the full stack.\nStack: Python, FastAPI, LangChain, LangGraph, MCP, relational and non-relational databases, Cloud.\n\nNice to have\nReact and TypeScript.\nPerks\nRemote-first cultur e - work from anywhere!\n In-Company English Lessons.\nWellhub or sports club stipend to stay active\nAWS, DBT, Google Cloud, Azure & Databricks certifications fully covered\nFood credits via Pedidos Ya - because great work deserves great food.\n Birthday off + an extra vacation week (Mutt Week! )\nReferral bonuses - help us grow the team & get rewarded!\nAnnual Mutters' Trip - an unforgettable getaway with the team!\n Monthly Childcare Reimbursement - Because supporting families matters too","description_format":"text","description_chars":3378,"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":["Continuous learning","Hybrid work"],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Consulting & Integration","Analytics & BI Consulting","Data Engineering & Migration Services"],"lifecycle":[{"event":"open","at":"2026-10-08T20:55:59Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":1,"expected_fill_days":33,"reasons":["conf:2","stale_co","velocity","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/mutt-data-backend-platform-engineer-pythonfastapi","json_url":"https://alion.io/job/mutt-data-backend-platform-engineer-pythonfastapi.json","meta":{"generated_at":"2026-10-12T06:02:16Z","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":9667,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":19043},"rest":"https://alion.io/mcp/rest/get_company?id=19043"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmutt-data-backend-platform-engineer-pythonfastapi"},{"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%2Fmutt-data-backend-platform-engineer-pythonfastapi"},{"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%2Fmutt-data-backend-platform-engineer-pythonfastapi"},{"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/mutt-data-backend-platform-engineer-pythonfastapi\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmutt-data-backend-platform-engineer-pythonfastapi"}]}