{"id":4146831,"url":"https://alion.io/job/grab-data-scientist-ads-and-demand-optimization-contract","title":"Data Scientist, Ads and Demand Optimization (Contract)","company":{"id":158,"name":"Grab","domain":"grab.com","url":"https://alion.io/company/grab","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":57,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":30,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Data Science","role_family":"Data Science","seniority":"junior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"Airflow","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Recommender Systems","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-11-12T07:22:19Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T07:27:05Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About Grab and Our Workplace\nGrab is Southeast Asia's leading superapp. From getting your favourite meals delivered to helping you manage your finances and getting around town hassle-free, we've got your back with everything. In Grab, purpose gives us joy and habits build excellence, while harnessing the power of Technology and AI to deliver the mission of driving Southeast Asia forward by economically empowering everyone, with heart, hunger, honour, and humility.\n Get to Know the Team\nJoin our Demand and Personalization Data Science team, where machine learning, economics, and large-scale engineering intersect. We build the core ranking, recommendation, and algorithmic incentive systems that determine what millions of users see and which merchant offers they receive across Southeast Asia. Our work directly drives discovery, engagement, and platform marketplace efficiency at scale, operating within high-throughput, low-latency production environments.\nGet to Know the Role\nWe are looking for a Data Scientist to develop, deploy, and operate production-grade ranking and recommendation models. Reporting to the Data Science Manager II, this is a full-time 24 months contract role based onsite at the Grab One-North Singapore office. You'll collaborate with senior data scientists, product managers, and software engineers to own models end-to-end-from feature engineering and offline experimentation to live deployment and monitoring. If you're passionate about solving high-stakes marketplace algorithms at consumer scale, we invite you to apply.\nThe Critical Tasks You Will Perform\nDesign, optimize, and maintain training-data and feature extraction pipelines across regional markets, ensuring data integrity and system reliability (including participating in team on-call rotations).\nFormulate, engineer, and validate new user and merchant personalization signals to measurably improve discovery relevance, CTR, and conversion.\nFormulate testable algorithmic hypotheses, run online A/B experiments, and monitor long-term holdout groups to rigorously measure business and user impact.\nCollaborate with Engineering to design, deploy, and scale real-time recommendation services and automated incentive allocation systems under strict SLA and latency budgets.\nManage production ML operations, including automated retraining pipelines, feature backfills, telemetry, and proactive drift monitoring.\nLeverage Generative AI (GenAI) coding tools and AI-assisted workflows to accelerate model prototyping, automate repetitive data scripts, and drive team innovation.\n What Essential Skills You Will Need\nAt least 1 year of hands-on industry experience as a Data Scientist or Machine Learning Engineer focusing on ranking, recommendation systems, or search (or an advanced degree in Computer Science, Statistics, Operations Research, or a related field with relevant production internship experience).\nDemonstrated experience with learning-to-rank algorithms, CTR/CVR prediction, relevance modelling, or two-tower retrieval architectures (e.g., GBDT, deep ranking models).\nExperience with offline ranking evaluation metrics (e.g., NDCG, MRR, AUC, MAP) alongside practical experience designing, analyzing, and interpreting online A/B tests.\nProgramming proficiency in Python and SQL, with at least 1 year of practical experience building and debugging production pipelines using Apache Spark and Airflow.\nPractical understanding of deploying ML models into real-world production environments, handling latency tradeoffs, and monitoring pipeline health.\nExperience engaging with AI tools and emerging technologies to enhance productivity, improve workflows, and contribute new ideas.\n Life at Grab\nWe care about your well-being at Grab, here are some of the global benefits we offer:\nWe have your back with Term Life Insurance and comprehensive Medical Insurance.\nWith GrabFlex, create a benefits package that suits your needs and aspirations.\nCelebrate moments that matter in life with loved ones through Parental and Birthday leave, and give back to your communities through Love-all-Serve-all (LASA) volunteering leave\nWe have a confidential Grabber Assistance Programme to guide and uplift you and your loved ones through life's challenges.\nBalancing personal commitments and life's demands are made easier with our FlexWork arrangements such as differentiated hours\nWhat We Stand For at Grab\nWe are committed to building an inclusive and equitable workplace that enables diverse Grabbers to grow and perform at their best. As an equal opportunity employer, we consider all candidates fairly and equally regardless of nationality, ethnicity, religion, age, gender identity, sexual orientation, family commitments, physical and mental impairments or disabilities, and other attributes that make them unique.","description_format":"text","description_chars":4814,"description_truncated":false,"requirements":{"experience_years_min":1,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Health insurance","Life insurance"],"hiring_locations":[{"name":"Singapore","iso":"SG","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Delivery","Ride Hailing","Digital Banks & Neobanks"],"lifecycle":[{"event":"open","at":"2026-11-12T07:27:05Z"}],"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":30,"reasons":["conf:1","win:early","comp:junior,brand"],"computed_at":"2026-11-12T09:17:22Z"},"pay":null,"html_url":"https://alion.io/job/grab-data-scientist-ads-and-demand-optimization-contract","json_url":"https://alion.io/job/grab-data-scientist-ads-and-demand-optimization-contract.json","meta":{"generated_at":"2026-11-12T09:17:22Z","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":18899,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":158},"rest":"https://alion.io/mcp/rest/get_company?id=158"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgrab-data-scientist-ads-and-demand-optimization-contract"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fgrab-data-scientist-ads-and-demand-optimization-contract"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fgrab-data-scientist-ads-and-demand-optimization-contract"},{"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/grab-data-scientist-ads-and-demand-optimization-contract\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgrab-data-scientist-ads-and-demand-optimization-contract"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4146831}},{"tool":"search_jobs","arguments":{"company":"grab.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4146831},"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"}}