While technology is the heart of our business, a global and diverse culture is the heart of our success. We love our people and we take pride in catering them to a culture built on transparency, diversity, integrity, learning and growth. If working in an environment that encourages you to innovate and excel, not just in professional but personal life, interests you- you would enjoy your career with Quantiphi! Role: Senior Software Developer Experience: 4-7 years Location: Mumbai/Bangalore Must-Have Skills • C# and .NET: Strong production experience with .NET Framework 4.x and modern .NET (.NET 8+), async programming, dependency injection, configuration. • Services and hosting: ASP.NET Core, Worker Services, Windows services, and hosting the same code base on Windows and Linux/containers. • Legacy modernization: Migrating .NET Framework projects to modern .NET, replacing System.Web/OWIN/WCF dependencies, multi-targeting, characterization tests. • Windows platform knowledge: WMI, registry, event log, certificate store, service accounts, 32-bit/64-bit and native interop. • APIs: REST design, versioning, authentication and authorization, OpenAPI. • Data: PostgreSQL (Npgsql, EF Core/Dapper), migrations; exposure to SQL Server and SQLite. • Reliability: Scheduling, retries, timeouts, cancellation, failure isolation, structured logging. • Testing: Unit and integration tests (xUnit/NUnit), mocking, TDD practices. Good-to-Have Skills • Messaging (RabbitMQ), outbox and idempotent-delivery patterns. • Docker, Kubernetes basics, CI/CD pipelines. • Python for tooling and integrations; WiX/MSI installers. • Industrial protocols such as OPC UA; exposure to OT/ICS environments. Key Responsibilities • Design and implement services, adapters and agents with clear interfaces and strong test coverage. • Migrate and refactor legacy components while preserving existing behavior. • Build secure, observable and resilient components that run unattended at customer sites. • Participate in code reviews, design discussions and release support; mentor peers. Qualifications • Bachelor's degree in Computer Science, Engineering, or a related field. If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!