{"id":3817810,"url":"https://alion.io/job/weekday-senior-backend-engineer-5","title":"Senior Backend Engineer","company":{"id":7097,"name":"Weekday","domain":"weekday.works","url":"https://alion.io/company/weekday","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":81,"open_postings":100,"ghost_share":0,"stale_share":0.98,"repost_share":0,"time_to_fill_p50_days":6,"computed_at":"2026-11-07T05:47:08Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon EC2","optional":false},{"name":"Amazon ECS","optional":false},{"name":"Amazon EKS","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"CloudFormation","optional":false},{"name":"Dependency Injection","optional":false},{"name":"Docker","optional":false},{"name":"FastAPI","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Grafana","optional":false},{"name":"GraphQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Terraform","optional":false},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-11-05T16:44:12Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-08T01:35:59Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"'\n: - ( - )\nExperience: 4+ yrs\nLocation: Bengaluru, Karnataka, India\nAs a Senior Backend Engineer, you will lead the design, development, and deployment of high-performance APIs and microservices utilizing FastAPI, ensuring seamless integration with AWS services such as EC2 and Lambda. You will architect robust data pipelines and manage PostgreSQL databases at scale, while implementing automation and CI/CD pipelines to streamline operations. Collaborating closely with cross-functional teams, you will translate business requirements into scalable, secure, and maintainable code, driving technological excellence and continuous improvement. Your role will also involve mentoring junior engineers and championing best practices in cloud-native development and API security.\nRequirements\nDesign, develop, and maintain scalable RESTful and GraphQL APIs using FastAPI.\nDeploy and manage backend services on AWS EC2 instances and serverless Lambda functions.\nDesign and optimize PostgreSQL schemas, queries, and indexing for high performance.\nImplement CI/CD pipelines using AWS CodePipeline, GitHub Actions, or equivalent tools.\nEnsure application security through proper authentication, authorization, and encryption practices.\nMonitor application health and performance using CloudWatch, Prometheus, or Grafana.\nCollaborate with frontend and data science teams to integrate APIs and data services.\nTroubleshoot and resolve production incidents, performing root cause analysis and post-mortem reviews.\nAutomate infrastructure provisioning and configuration using IaC tools like Terraform or CloudFormation.\nMentor junior developers and conduct code reviews to uphold coding standards and best practices.\n4+ years of professional experience building backend systems in Python.\nDeep expertise with FastAPI, including dependency injection and asynchronous execution.\nProven experience deploying applications on AWS EC2 and developing Lambda functions.\nStrong command of PostgreSQL including schema design, query optimization, and replication.\nFamiliarity with serverless architectures and event-driven design patterns.\nHands-on knowledge of CI/CD, containerization (Docker), and orchestration (ECS, EKS).\nExcellent debugging skills and experience with cloud monitoring and logging solutions.\nStrong communication skills and a collaborative mindset for cross-functional teams.\nAbility to mentor and grow junior engineers while driving architectural decisions.\nPassion for clean code, automated testing, and continuous 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