{"id":109119,"url":"https://alion.io/job/reply-senior-net-full-stack-developer-react","title":"Senior .NET Full Stack Developer (React)","company":{"id":865,"name":"Reply","domain":"reply.com","url":"https://alion.io/company/reply-polska-sp-z-o-o","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"C","score":69,"open_postings":40,"ghost_share":0.525,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":41,"computed_at":"2026-10-16T05:45:00Z"}},"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":["Kochi, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":14500,"max_usd":34000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Dependency Injection","optional":false},{"name":"Docker","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"Keycloak","optional":false},{"name":"Kubernetes","optional":false},{"name":"React.js","optional":false},{"name":"Scrum","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Apache Kafka","optional":true},{"name":"GraphQL","optional":true},{"name":"MQTT","optional":true},{"name":"RabbitMQ","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-07-05T11:37:55Z","employer_posted_date":"2026-07-05","last_verified_at":"2026-10-16T11:49:11Z","board_verified":true,"closed_at":null,"days_open":103,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":102},"description":"We are looking for an experienced Senior .NET Full Stack Developer (React) to join our engineering team. In this role, you will design, develop, and support scalable enterprise applications with a strong focus on backend engineering while contributing to modern React-based user interfaces. Our ideal candidate has strong experience building secure, cloud-native microservices, enjoys solving production challenges, and thrives in Agile teams.\nResponsibilities\nDesign, develop, and maintain scalable enterprise applications using C#, ASP.NET Core, React, and SQL Server following modern software architecture principles.\nBuild and enhance secure RESTful APIs and microservices while ensuring high performance, scalability, and maintainability.\nTroubleshoot production issues, perform root cause analysis, implement preventive measures, and collaborate with DevOps teams to improve application reliability.\nImplement authentication and authorization using Keycloak (preferable) or similar tools like OAuth2, OpenID Connect, and JWT, ensuring enterprise-grade security.\nCollaborate with frontend developers, QA engineers, architects, and business stakeholders throughout the software development lifecycle using Agile/Scrum methodologies.\nParticipate in technical design discussions, code reviews, mentoring junior developers, and driving engineering best practices across the team.\nMinimum Requirements (Mandatory)\n6 years of experience in software development using C#, ASP.NET Core/.NET Core, and enterprise application development.\nStrong experience with React, TypeScript/JavaScript, RESTful API development, Microservices Architecture, Entity Framework Core, and SQL Server.\nHands-on experience implementing authentication and authorization using Keycloak (preferable) or similar tools like JWT, OAuth2, and, OpenID Connect.\nGood understanding of application architecture, dependency injection, middleware, API versioning, logging, exception handling, and secure coding practices.\nExperience working with cloud platforms (AWS or Azure), Docker, Kubernetes, Git, CI/CD pipelines, and Agile/Scrum methodologies.\nStrong analytical and debugging skills with proven experience in production support, performance optimization, API troubleshooting, and database query 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