{"id":1216870,"url":"https://alion.io/job/oolka-sr-backend-engineer","title":"Sr. Backend Engineer","company":{"id":1527,"name":"Oolka","domain":"oolka.in","url":"https://alion.io/company/oolka","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"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":["Kolkata, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":29000,"max_usd":61000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":21},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon EC2","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"Django","optional":false},{"name":"Docker","optional":false},{"name":"FastAPI","optional":false},{"name":"Flask","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-25T10:00:01Z","employer_posted_date":null,"last_verified_at":"2026-09-25T10:00:01Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"We are seeking an experienced backend engineer to architect and implement developer-friendly APIs. The role demands a comprehensive understanding of third-party API services to develop a reliable and scalable infrastructure. The candidate will lead the design and development of these applications, collaborating closely with teams across various product infrastructure layers. Success in this position requires a highly collaborative mindset and a dedication to excellence.\nResponsibilities:\nBuild, own, and maintain backend data infrastructure.\nDesign and implement database and storage solutions that fit the needs for both data transactions and reporting.\nBuild a highly scalable and robust backend architecture ground up.\nTest, debug, and maintain the application software throughout the product lifecycle.\nRequirements:\n5+ years of cumulative experience working as a full-stack engineer.\nExpertise in using Python + Flask + Django + FastAPI\nSkilled in deploying serverless applications and managing relational databases (PostgreSQL).\nStrong implementation skills with AWS suite (EC2 S3 RDS, ELB, VPC, Cognito, Cloudwatch).\nExperience in building, testing, and deploying container applications using Docker.\nWorking knowledge of API development for mobile/ web use.\nContributions to open-source will be a plus.\nExcellent ability to prioritise and communicate in a fast-paced environment.\nRelevance of companies/setups worked with:\nExperience in working with a scaling product.\nExperience of working on revamping the existing scratchy product to achieve PMF.\nMust be good communicators as everyone here talks to end users.","description_format":"text","description_chars":1626,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Personal Finance Apps & Education"],"lifecycle":[{"event":"open","at":"2026-09-25T10:00:01Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":42,"reasons":["seen:0","win:early"],"computed_at":"2026-09-26T01:16:56Z"},"pay":null,"html_url":"https://alion.io/job/oolka-sr-backend-engineer","json_url":"https://alion.io/job/oolka-sr-backend-engineer.json","meta":{"generated_at":"2026-09-26T01:16:56Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1239,"day_limit":5000,"remaining_today":3761,"minute_limit":60,"resets_at":"2026-09-27T00:00:00Z"}}}