{"id":461495,"url":"https://alion.io/job/modulai-senior-machine-learning-engineer-fraud-detection","title":"Senior Machine Learning Engineer - Fraud Detection","company":{"id":177758,"name":"Modulai","domain":"modulai.io","url":"https://alion.io/company/modulai","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-29T05:49:05Z"}},"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":["Stockholm, Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":68000,"max_usd":178000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2365},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"FastAPI","optional":false},{"name":"Feature Store","optional":false},{"name":"Flask","optional":false},{"name":"Kubeflow","optional":false},{"name":"LightGBM","optional":false},{"name":"Machine Learning","optional":false},{"name":"pySpark","optional":false},{"name":"Python","optional":false},{"name":"Scikit-learn","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"XGBoost","optional":false}],"status":"live","first_seen_at":"2026-03-10T10:56:19Z","employer_posted_date":"2026-03-10","last_verified_at":"2026-10-30T02:00:26Z","board_verified":true,"closed_at":null,"days_open":233,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":232},"description":"SENIOR MACHINE LEARNING ENGINEER\nWe are recruiting Senior Machine Learning Engineers to work on the development of a next-generation fraud detection platform for a major Payment Service Provider (PSP).\nThe role combines production-grade machine learning engineering, advanced data analysis/statistics, and customer-facing technical collaboration. You will work closely with the client’s data, engineering, risk, and compliance teams to design, implement, deploy, and continuously improve real-time ML models operating in a highly regulated financial environment.\nWe approach these problems as a team, meaning that you will have to be able to clearly explain your reasoning and code in order to engage the rest of us. This is a hands-on, forward-deployed role requiring both deep technical expertise and strong communication skills in English.\nCore Responsibilities\nDesign, train, evaluate, and deploy ML models for transaction-level fraud detection (primarily tabular data).\n\nAnalyze large-scale transaction datasets to identify patterns, leakage, bias, and data quality issues.\n\nBuild and maintain production ML services (real-time and batch).\n\nImplement robust ML pipelines, model monitoring, and experiment frameworks.\n\nCollaborate directly with client engineers, data scientists, and risk teams.\n\nTranslate complex technical concepts and results into clear, actionable insights for technical and non-technical stakeholders.\n\nOperate within strict requirements for reliability, explainability, traceability, and compliance.\n\nBackground and skills:\nProduction-grade Python and solid ML fundamentals (XGBoost/LightGBM, Scikit-learn, feature engineering, imbalanced datasets)\n\nExperience building and shipping ML-powered APIs (FastAPI/Flask), Docker, CI/CD, and distributed data processing (PySpark/SQL)\n\nStrong stats foundation: experimental design, bias/leakage detection, time-dependent validation\n\nHands-on MLOps experience - feature stores, Airflow/Kubeflow, model monitoring, real-time inference, A/B testing\n\nMSc or Ph.D. in a quantitative field\n\nExcellent understanding of a broad set of ML algorithms and frameworks\n\nA passion for lean, clean, and maintainable code\n\nThe desire to grow and to share insights with others\n\nDomain experience: Fraud detection, payments, fintech, or credit risk. You've worked with cost-sensitive decisions, highly imbalanced data, and models that directly impact business risk.\nHow you work: You communicate clearly with engineers, product, and compliance stakeholders alike. You write good documentation and can hold your own in architecture discussions.\nAbout Team Modulai\nAt Modulai, we focus 100% on solving problems with machine learning (ML). We work in teams on a project basis, for clients, as part of the core team in startups where we have long-term engagements, and we also build our own ML products.\nLearning and teamwork are central to how we work. Everyone in the team is or will soon be a full-stack ML engineer capable of scoping and developing end-to-end ML solutions. You should be able to do end-to-end machine learning products by yourself but never do it because we always work in teams. If there is data, we will do ML on it!\nNote:\nDue to the summer holiday period, applications will be reviewed starting 27th of July.","description_format":"text","description_chars":3279,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Fraud Detection","Artificial Intelligence","Machine Learning"],"lifecycle":[{"event":"open","at":"2026-09-06T11:14:29Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.206,"p_room":0.28,"age_days":232,"expected_fill_days":28,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/modulai-senior-machine-learning-engineer-fraud-detection","json_url":"https://alion.io/job/modulai-senior-machine-learning-engineer-fraud-detection.json","meta":{"generated_at":"2026-10-30T03:07:32Z","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":4124,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"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":177758},"rest":"https://alion.io/mcp/rest/get_company?id=177758"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmodulai-senior-machine-learning-engineer-fraud-detection"},{"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%2Fmodulai-senior-machine-learning-engineer-fraud-detection"},{"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%2Fmodulai-senior-machine-learning-engineer-fraud-detection"},{"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/modulai-senior-machine-learning-engineer-fraud-detection\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmodulai-senior-machine-learning-engineer-fraud-detection"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":461495}},{"tool":"search_jobs","arguments":{"company":"modulai.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":461495},"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"}}