Senior Full Stack Engineer (.NET / C#)

Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativity, and driven by responsibility. We’re optimists for change and we help clients initiate, navigate, and benefit from transformation. We believe optimism is a force multiplier, helping clients mitigate downside and maximize opportunity. With expertise across a broad range of sectors and services, our consultants serve clients worldwide. Our expertise delivers results. Our optimism transforms outcomes. 

We are hiring a Senior Full Stack Engineer (.NET / C#) to join the Sia Partners Mumbai Tech Hub. This role is a hands-on, individual contributor position with strong ownership across backend and frontend development. 

The engineer will primarily focus on backend development using .NET Core / C#. while also owning key frontend components built using Angular (12+). 

This role is client-facing, supporting delivery teams by translating business requirements into robust technical solutions, reducing dependency on the Tech Lead, and independently owning full-stack features where required. 

Key Responsibilities 

• Back-End Development: Design, develop, and optimize APIs and application services using .NET Core / .NET 6+, following clean architecture and SOLID principles. 

• Front-End Development: Develop and maintain modern, scalable user interfaces using Angular 12+, ensuring performance, usability, and maintainable UI structure. 

• Full-Stack Ownership: Own and deliver features end-to-end when work spans both backend and frontend layers, coordinating with the Tech Lead for alignment where needed. 

• Client-Facing Delivery: Engage in technical discussions with clients, understand functional requirements, articulate solution approaches, and explain technical trade-offs clearly. 

• Cloud Deployment: Build and deploy applications on cloud platforms (Azure / AWS / GCP) using containerized workloads. 

• Containerization: Work with Docker and Kubernetes as part of application deployment and runtime environments, in collaboration with DevOps teams. 

• CI/CD Practices: Work with existing CI/CD pipelines (GitLab CI / Azure DevOps) to ensure stable builds, testing, and deployments. 

• Code Quality & Reviews: Maintain high engineering standards through code reviews, unit testing, documentation, and adherence to best practices. 

• System Design Contribution: Contribute to application-level design discussions related to scalability, performance, and maintainability. 

          Qualifications 

• Education: Bachelor’s/master's degree in computer science, Software Engineering, or a related field. 

• Experience: 4-6 years of experience with strong hands-on exposure to both backend and frontend development. 
  
  Skills: 

• Strong proficiency in C# and .NET Core / .NET 6+ 

• Experience building RESTful APIs and backend services 

• AI-Native Engineering: Experience utilize Cursor, GitHub Copilot, or Claude Code as a core part of their daily workflow. 

• Hands-on experience with Angular 12+, TypeScript, HTML, and CSS 

• Experience with relational databases (SQL Server / PostgreSQL) and NoSQL databases (MongoDB) 

• Familiarity with Docker and Kubernetes 

• Experience working with CI/CD pipelines 

What We Offer: 

• Opportunity to lead cutting-edge AI projects in a global consulting environment. 

• A dynamic and collaborative team environment with diverse projects. 

Position based in Mumbai (onsite)

Sia is an equal opportunity employer. All aspects of employment, including hiring, promotion, remuneration, or discipline, are based solely on performance, competence, conduct, or business needs.