{"id":2969468,"url":"https://alion.io/job/odaseva-senior-backend-api-engineer","title":"Senior Backend API Engineer","company":{"id":9019,"name":"Odaseva","domain":"odaseva.com","url":"https://alion.io/company/odaseva","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":88,"open_postings":9,"ghost_share":0,"stale_share":0.222,"repost_share":0.111,"time_to_fill_p50_days":116,"computed_at":"2026-10-21T05:46:15Z"}},"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":"explicit","locations":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":59000,"max_usd":99000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":173},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Go","optional":false},{"name":"Node JS","optional":false},{"name":"PHP","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-20T22:22:01Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-22T03:51:27Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Key Responsibilities\nBackend Development: Design, build, and maintain backend services and APIs, from technical design to production.\n\nArchitecture & Scale: Own complex features and sub-systems spanning multiple services, designed for large data volumes, multi-tenancy, performance, and cost in the cloud.\n\nProduction Ownership: Investigate issues across systems, profile and optimize production code, and spot risks before they reach customers.\n\nAI-Augmented Engineering: Use AI tooling in your daily work, with the judgment to steer, review, and challenge what it produces.\n\nTechnical Leadership: Raise the team's practices and code health through design proposals, code reviews, and mentoring.\n\nRequired qualifications\nMaster's degree in Computer Science, Engineering or other relevant field.\n7+ years of hands-on backend development, with a track record of owning significant features from design through delivery.\n\nDeep expertise in at least one backend language among Node.js/TypeScript, PHP, Go, or Python; production experience with two or more is a strong plus.\n\nProven ability to get up to speed quickly on complex systems and take ownership of key parts of them, whether building from scratch or evolving what exists.\n\nStrong fundamentals in software design and distributed systems: event-driven architectures, queues, database performance, testing.\n\nExperience with AWS (serverless, containers, IaC) and observability tooling. 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