Senior Software Engineer - Full Stack

OSI Digital; Hyderabad; On-site; INR 1,000,000 - 1,500,000; Full time

Job summary

OSI Digital is looking for a Senior .NET Developer with 4 to 5+ years of experience to join our team in Hyderabad, India. You will design, develop, and maintain API endpoints while collaborating with cross-functional teams to deliver high-quality software solutions.

Your primary focus will include developing scalable web applications using .NET MVC and .NET Core, building RESTful APIs, and enhancing user interfaces with React and TypeScript. This role requires strong hands-on technical skills and a commitment to quality.

Qualifications

• 4 to 5+ years of experience in .NET development.
• Strong hands-on experience with .NET MVC and .NET Core 8.0.
• Proven experience in developing and consuming RESTful APIs.

Responsibilities

• Design, develop, and maintain scalable web applications using .NET MVC and .NET Core.
• Build and enhance RESTful APIs using ASP.NET Web API.
• Develop responsive user interfaces using React and TypeScript.

Skills

.NET MVC and .NET Core 8.0

RESTful APIs using ASP.NET Web API

React

TypeScript

Microsoft SQL Server

Unit testing with NUnit and Moq

UI automation testing with Selenium or Playwright

CI/CD concepts

Version control with Git

AI concepts and Retrieval-Augmented Generation (RAG)

Tools

Azure DevOps

GitHub Actions

Job description

OSI Digital is looking for a Senior .NET Developer with 4 to 5+ years of experience, your primary responsibility will be to design, develop, and maintain API endpoints for our applications. You will work closely with cross‑functional teams to deliver high‑quality software solutions.

Responsibilities

• Design, develop, and maintain scalable web applications using .NET MVC and .NET Core 8.0 following best engineering practices.
• Build, enhance, and consume RESTful APIs using ASP.NET Web API to support frontend and integration requirements.
• Develop responsive and high-performance user interfaces using React and TypeScript.
• Design and optimize Microsoft SQL Server databases, including schema design, query optimization, and performance tuning.
• Write clean, testable, and maintainable code with appropriate unit test coverage using NUnit and Moq.
• Collaborate with QA teams to support UI automation testing using tools such as Selenium or Playwright.
• Participate in CI/CD pipeline implementation and maintenance, ensuring smooth build, release, and deployment processes.
• Work closely with cross‑functional teams (Product, QA, DevOps) to deliver high‑quality solutions on time.
• Troubleshoot, debug, and resolve application and performance issues across environments.
• Stay updated with emerging technologies and contribute to continuous improvement initiatives.

Required Skills

• Strong hands‑on experience with .NET MVC and .NET Core 8.0.
• Proven experience in developing and consuming RESTful APIs using ASP.NET Web API.
• Proficiency in React and TypeScript for modern frontend development.
• Solid understanding of Microsoft SQL Server, including database design, indexing, and query optimization.
• Experience with unit testing frameworks such as NUnit and Moq.
• Familiarity with UI automation testing tools like Selenium or Playwright.
• Good understanding of CI/CD concepts and tools (e.g., Azure DevOps, GitHub Actions).
• Experience with version control systems such as Git.
• Exposure to AI concepts and Retrieval‑Augmented Generation (RAG) patterns is an added advantage.
• Strong analytical, problem‑solving, and communication skills.
• Ability to work independently as well as in a collaborative team environment.

Good to Have

• Familiar with code analysis or automated testing tools.
• Good knowledge on general investment/wealth/life and/or pensions products.
• Ability to communicate ideas in both technical and user‑friendly languages.

We are not looking for someone who

Never worked with Clients Directly

Not willing to work from the office