{"id":2149790,"url":"https://alion.io/job/carousell-group-data-scientist-ii","title":"Data Scientist II","company":{"id":3766,"name":"Carousell Group","domain":"carousell.com","url":"https://alion.io/company/carousell-group","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":true,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":80,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":16,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Data Science","role_family":"Data Science","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","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":{"min_usd":44000,"max_usd":89000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":18},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"Computer Vision","optional":false},{"name":"Keras","optional":false},{"name":"Machine Learning","optional":false},{"name":"MLlib","optional":false},{"name":"Multimodal AI","optional":false},{"name":"NLP","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"TensorFlow","optional":false},{"name":"CLIP","optional":true},{"name":"Embeddings","optional":true}],"status":"live","first_seen_at":"2026-10-09T03:04:33Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-13T15:37:41Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Carousell Group is the leading recommerce group in Greater Southeast Asia on a mission to inspire the world to start selling, and to make secondhand the first choice. Founded in August 2012 in Singapore, the Group has a leading presence in eight markets under the brands Carousell, Cho Tot, Laku6, Mudah.my, OneKyat, Ox Street, and Refash, serving tens of millions of monthly active users. Carousell is backed by leading investors including Telenor Group, Rakuten Ventures, Naver, STIC Investments and Sequoia Capital India.\nAs a team of passionate individuals working together to solve meaningful problems, there is so much more for you to discover in a career with Carousell. Our culture is made up of hiring, developing, and promoting people who embody our values of solving problems for our users; having a mission-first mindset; being relentlessly resourceful; caring deeply; and staying humble to constantly improve. Together as an organisation, we make magic happen.\n You will be joining a central team of talented Data Scientists, working on a wide variety of impactful & important problem areas like: Search, Personalisation, Content Moderation, Trust & Safety, AI led Automation, Computer Vision, Conversation AI (NLP) etc.\nWhat you'll do\nShip and improve models in production. End-to-end ML model development lifecycle: data wrangling, feature engineering, model selection / architecture, training, offline & online evaluations, planning A/B experimentation & productionization.\n\nTurn ad-hoc business needs into solutions, whether that means adapting an existing service or building a new feature.\n\nOwn your data pipelines: Data preparation, feature processing, training and deployment pipelines your models need.\n\nRun and read A/B tests to decide what ships, and explain honestly when a result is noise.\n\nUse AI tools as a core part of how you work, to move faster and to raise the quality of what you ship.\n\nWork across any of the following domains: Search, Recommendations, Sell Form, Listing Understanding, Trust & Safety\n\nPartner closely with Product Managers & other engineers in identifying potential data science solutions to important product / business problems.\n\nWork closely with other data scientists, contributing to the culture of continuous learning & sharing.\n\nBuild multimodal understanding for the sell form, such as extracting attributes from listing photos and text and auto-filling listing details.\n\nImprove search and recommendations, from candidate generation and semantic retrieval to ranking and relevance evaluation.\n\nWork hands-on with Chinese-language data. Analyse listing text and search queries from Hong Kong and Taiwan directly, in Traditional Chinese and Cantonese as well as English.\n\n Requirements\n3+ years of applied ML engineering or data science experience, with hands-on experience of solving multiple product & business problems leveraging machine learning.\n\nWorking proficiency in English and in Mandarin or Cantonese. This role involves hands-on analysis of Chinese-language listing text and search queries from Hong Kong and Taiwan, so you'll need to read and reason about that data yourself.\n\nMinimum Bachelor's degree in Computer Science, Statistics, Applied Mathematics or a related quantitative discipline, or equivalent demonstrated experience.\n\nSolid foundation in maths, programming and ML/DL fundamentals.\n\nGood programming ability in Python, SQL and experience with machine learning frameworks and libraries (e.g. PyTorch, Tensorflow, Keras, Spark MLlib, Sklearn etc.)\n\nGood to have:\nExperience in e-commerce, classifieds or C2C marketplaces, especially with cold-start listings, supply quality or long-tail queries.\n\nExperience in one or more of: search, recommendations, marketplace trust & safety, or pricing.\n\nMultimodal embeddings and vector retrieval, such as CLIP-style architectures and approximate nearest-neighbour search.\n\nAttribute extraction or auto-fill from images and unstructured text.\n\nA Master's degree in Computer Science or a related field.\n\nFamiliarity with Carousell as a user. Knowing the product first-hand helps a lot when tuning feeds and search quality.\n\nBy proceeding with your application, you are adhering to our PDPA policies. In case you are interested to know more, read about our Candidates Personal Data Privacy Statement.","description_format":"text","description_chars":4323,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"Chinese","level":"All levels","optional":false},{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Continuous learning"],"hiring_locations":[{"name":"Singapore","iso":"SG","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Marketplaces","Secondhand"],"lifecycle":[{"event":"open","at":"2026-10-09T05:21:07Z"}],"visa":[],"liveness":{"score":89,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.887,"p_room":1,"age_days":4,"expected_fill_days":16,"reasons":["conf:1","velocity","win:early"],"computed_at":"2026-10-13T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/carousell-group-data-scientist-ii","json_url":"https://alion.io/job/carousell-group-data-scientist-ii.json","meta":{"generated_at":"2026-10-13T16:43:56Z","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":25430,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":3766},"rest":"https://alion.io/mcp/rest/get_company?id=3766"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcarousell-group-data-scientist-ii"},{"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%2Fcarousell-group-data-scientist-ii"},{"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%2Fcarousell-group-data-scientist-ii"},{"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/carousell-group-data-scientist-ii\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcarousell-group-data-scientist-ii"}]}