{"id":3997309,"url":"https://alion.io/job/vivantify-technology-solutions-india-pvt-ltd-backend-developer-python-fast-api","title":"Backend Developer – Python / Fast API","company":{"id":4478772,"name":"Vivantify Technology Solutions","domain":"vivantify.com","url":"https://alion.io/company/vivantify-technology-solutions-india-pvt-ltd","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"FastAPI","optional":false},{"name":"Git","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Pydantic","optional":false},{"name":"Pytest","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Celery","optional":true},{"name":"GCP","optional":true},{"name":"Grafana","optional":true},{"name":"Kubernetes","optional":true},{"name":"Prometheus","optional":true},{"name":"RabbitMQ","optional":true},{"name":"Redis","optional":true}],"status":"live","first_seen_at":"2026-11-10T01:45:44Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-14T21:44:36Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Location: Pune\nExperience: 5-7 Years\nOpenings: 1\nAbout the Role\nWe are seeking a Backend Developer with strong experience in Python and FastAPI to build scalable, high-performance backend systems. The role focuses on developing RESTful APIs, working with PostgreSQL, implementing secure backend services, and supporting production-ready applications. The candidate will collaborate with frontend, product, and DevOps teams.\nJob Description\nThe role involves designing and developing backend services and business logic using Python and FastAPI, with an emphasis on asynchronous programming, API validation, authentication, and reliable application performance. The developer will work extensively with PostgreSQL and SQL, including query optimization, indexing, transactions, and JSON/JSONB data.\nThe position also involves automated testing, Docker-based deployments, CI/CD pipelines, troubleshooting, logging, debugging, and monitoring. The developer will contribute to production deployments and continuous improvements to backend performance and reliability.\nKey Responsibilities\nDesign and develop RESTful APIs using FastAPI.\nBuild backend services and implement business logic using Python.\nDevelop and optimize PostgreSQL queries and database operations.\nImplement authentication, authorization, validation, and secure API practices.\nWrite and maintain unit and integration tests using tools such as Pytest.\nSupport Docker, CI/CD pipelines, and production deployments.\nTroubleshoot backend issues and improve application performance.\nCollaborate with frontend, product, and DevOps teams.\nRequired Skills\nPython\nFastAPI\nPython 3.8\nAsync programming and Pydantic\nREST API development\nAPI documentation, middleware, and exception handling\nPostgreSQL and SQL\nIndexing, transactions, JSON/JSONB, and query optimization\nGit, Docker, and CI/CD\nJWT/OAuth authentication\nPytest\nLogging, debugging, and monitoring\nPreferred / Good to Have\nRedis or other caching solutions\nMessage queues such as Kafka, RabbitMQ, or Celery\nMicroservices experience\nCloud platforms such as AWS, Azure, or GCP\nKubernetes or container orchestration\nObservability tools such as Grafana, Prometheus, or ELK\nMandatory Skills\nPython\nCandidate Profile\nThe ideal candidate will have backend development experience with strong hands-on expertise in Python, FastAPI, and PostgreSQL. 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