{"id":3394016,"url":"https://alion.io/job/maropost-senior-software-engineer-machine-learning-2","title":"Senior Software Engineer (Machine Learning)","company":{"id":1808031,"name":"Maropost","domain":"maropost.com","url":"https://alion.io/company/maropost","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":22000,"max_usd":45000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":41},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ClickHouse","optional":false},{"name":"Embeddings","optional":false},{"name":"FAISS","optional":false},{"name":"FastAPI","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Qdrant","optional":false},{"name":"Recommender Systems","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"Docker","optional":true},{"name":"Flink","optional":true}],"status":"live","first_seen_at":"2026-09-24T00:00:00Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-29T13:16:38Z","board_verified":true,"closed_at":null,"days_open":35,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":35},"description":"Everything we do is for our customers!\nFeatured on Deloitte's Technology Fast 500 list and G2's leaderboard, Maropost offers a unified commerce experience that our customers need, transforming ecommerce, retail, marketing automation, merchandising, helpdesk and AI operations with one platform designed to scale for fast-growing businesses. With a relentless focus on our customers’ success, we are motivated by customer obsession, extreme urgency, excellence and resourcefulness to power 5,000+ global brands while we head to 100,000+.\nDriven by the same customer-centric mentality as above, we empower businesses to achieve their goals and grow alongside us. If you're a driver and not passenger and are ready to make a significant impact and be part of our transformative journey, Maropost is the place for you.\nThe Opportunity:\nYou will own the machine learning that powers product discovery for our merchants: personalized search ranking, recommendation widgets, email recommendations, and an LLM shopping assistant. This is an end-to-end role. You will train the models, build the services that serve them, and keep both running in production. You will not hand a model over a wall to someone else.\nThe team is small and the systems are real: Recommendations are re-ranked in the live request path for storefronts, under a 200 ms budget, measured by merchant conversion.\nWhat Youʼll Be Responsible For:\nDesign, train and ship recommendation and ranking models - session-based embeddings, collaborative filtering, content and visual embeddings.\nBuild and operate the Python services that serve them at low latency.\nRun the batch pipelines that rebuild model artifacts daily across hundreds of merchants.\nDesign and read AB tests; decide what ships on the evidence.\nOwn your deployments: containers, Kubernetes manifests, autoscaling, dashboards, alerts.\nExtend our LLM work - a shopping assistant and LLM-assisted catalogue enrichment - with proper evaluation behind it.\nWhat Youʼll Bring to Maropost:\n5+ years building machine learning systems, with at least 3 years of models serving live production traffic.\nStrong Python,(FastAPI or equivalent).\nVector databases (Qdrant).\nOther ANN libraries - FAISS, Annoy, ScaNN. HNSWlib is what we run, but the trade-offs transfer.\nHands-on recommender systems or search ranking experience: implicit feedback, embeddings, approximate nearest neighbour search.\nSolid SQL against analytical stores; ClickHouse experience is a plus.\nComfortable with Docker and Kubernetes, and willing to own the deployment of your own work.\nExperience running AB tests and reporting results you did not like.\nStreaming systems (Pulsar, Kafka, Flink)\nYou exemplify Maropost’s Values:\nCustomer Obsessed\nExtreme Urgency\nExcellence\nResourceful\nMessage from the Founders:Maropost is looking for builders - people who want to drive our business forward at all costs in order to achieve the goals we have both short and long term for the results and outcomes that that will bring to us all.\nIf that isn't for you that’s ok, for those of you that it is please get in touch with us!","description_format":"text","description_chars":3100,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["E-commerce Platforms","Marketing & Sales AI"],"lifecycle":[{"event":"open","at":"2026-10-28T11:40:03Z"}],"visa":[],"liveness":{"score":37,"band":"fade","label":"Fading","p_open":1,"p_active":0.668,"p_room":0.55,"age_days":35,"expected_fill_days":30,"reasons":["conf:3","velocity","win:tail"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/maropost-senior-software-engineer-machine-learning-2","json_url":"https://alion.io/job/maropost-senior-software-engineer-machine-learning-2.json","meta":{"generated_at":"2026-10-29T15:58:40Z","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":23846,"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":1808031},"rest":"https://alion.io/mcp/rest/get_company?id=1808031"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmaropost-senior-software-engineer-machine-learning-2"},{"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%2Fmaropost-senior-software-engineer-machine-learning-2"},{"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%2Fmaropost-senior-software-engineer-machine-learning-2"},{"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/maropost-senior-software-engineer-machine-learning-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmaropost-senior-software-engineer-machine-learning-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3394016}},{"tool":"search_jobs","arguments":{"company":"maropost.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3394016},"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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