{"id":3320327,"url":"https://alion.io/job/criteo-senior-software-development-engineer","title":"Senior Software Development Engineer","company":{"id":52884,"name":"Criteo","domain":"criteo.com","url":"https://alion.io/company/criteo","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":79,"open_postings":7,"ghost_share":0,"stale_share":0.857,"repost_share":0,"time_to_fill_p50_days":41,"computed_at":"2026-11-01T06:10:25Z"}},"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":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":55000,"max_usd":93000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":182},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"Agile","optional":true},{"name":"C#","optional":true},{"name":"C++","optional":true},{"name":"Java","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-10-26T00:00:00Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-11-01T23:27:47Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"What You'll Do:\nAs a Software Development Engineer in the IPI ID Graph team, you will help build and evolve the identity infrastructure that powers Criteo's understanding of users across devices, browsers, apps, and online/offline environments. The team develops large-scale distributed systems that connect identity signals and make them available to critical advertising, measurement, audience, and personalisation products across Criteo. \nDesign, build, and operate highly scalable backend services that process billions of identity signals.\nContribute to Criteo's Identity Graph, which connects browser cookies, mobile identifiers, hashed emails, CRM identifiers, and other signals into a unified view of users. \nDevelop services that create, store, enrich, synchronize, validate, and serve identity data across Criteo's ecosystem. \nImprove cross-device and cross-environment matching capabilities to increase audience reach and advertising performance.\nWork on large-scale data processing, distributed systems, low-latency services, and high-throughput APIs.\nPartner closely with product managers, data scientists, machine learning engineers, and other engineering teams across User Data and Audience platforms.\nContribute to the evolution of privacy-conscious identity solutions in a rapidly changing advertising ecosystem.\nOwn services end-to-end, from design and implementation through deployment, monitoring, troubleshooting, and continuous improvement.\nWho You Are:\nYou have at least 5 years of experience with developing and extending large and complex systems.\nMaster in Computer science or engineering school or any relevant field\nFamiliar with this technical stack: C#, Python, C++, Java\nYou are curious about innovative technologies, eventually leading personal subjects on the matter.\nA can do attitude and the ability to work on problems by thinking positively and in a collaborative manner.\nYou worked in Agile environments and you are passionate about shipping high quality code!\nFluent in English\nWe acknowledge that many candidates may not meet every single role requirement listed above. If your experience looks a little different from our requirements but you believe that you can still bring value to the role, we’d love to see your application!\nWho We Are:\nWe’re Criteo, the Commerce Intelligence Platform. Criteo helps businesses turn shopper signals into commerce outcomes while delivering more relevant experiences for shoppers. We use proprietary commerce intelligence and AI decisioning to drive relevance for shoppers and performance for businesses.\nAt Criteo, our culture is as unique as it is diverse. From our offices across the globe or from the comfort of home, our 3,600 Criteos collaborate together to build an open, impactful, and forward-thinking environment.\nWe foster a workplace where everyone is valued, and employment decisions are based solely on skills, qualifications, and business needs-never on non-job-related factors or legally protected characteristics.\nWhat We Offer:\nWays of working - Our hybrid model blends home with in-office experiences, making space for both.\nGrow with us - Learning, mentorship & career development programs.\nYour wellbeing matters - Health benefits, wellness perks & mental health support.\nA team that cares - Diverse, inclusive, and globally connected.\nFair pay & perks - Attractive salary, with performance-based rewards and family-friendly policies, plus the potential for equity depending on role and level.\nAdditionalbenefits may vary depending on the country where you work and the nature of your employment with Criteo.","description_format":"text","description_chars":3606,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Equity"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Advertising","E-commerce Marketing","Retail & Commerce AI"],"lifecycle":[{"event":"open","at":"2026-10-27T07:36:56Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":6,"expected_fill_days":41,"reasons":["conf:5","velocity","win:early"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/criteo-senior-software-development-engineer","json_url":"https://alion.io/job/criteo-senior-software-development-engineer.json","meta":{"generated_at":"2026-11-02T05:25:21Z","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":7830,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":52884},"rest":"https://alion.io/mcp/rest/get_company?id=52884"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcriteo-senior-software-development-engineer"},{"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%2Fcriteo-senior-software-development-engineer"},{"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%2Fcriteo-senior-software-development-engineer"},{"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/criteo-senior-software-development-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcriteo-senior-software-development-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3320327}},{"tool":"search_jobs","arguments":{"company":"criteo.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3320327},"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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