Senior Application Services Developer
Where true performance thrives.
At Brennan, we believe that how technology is delivered is every bit as important as what the technology is. It's a claim backed by our True Performance System - a way of working engineered to get us closer, and deliver better, for our customers and their actual experience of technology.
True performance for our customers starts with a true belief in our people.
It's why we've structured our business to help our teams, and their talents, shine bright. It's why we've created a workplace where people of all backgrounds, beliefs and experiences are welcomed and empowered. Training and certification bonuses
The Senior Application Services Developer plays a key role in supporting and enhancing our customers' applications as part of our Managed Application Services team. You will be responsible for maintaining solid relationships with clients through regular health checks, performance reviews, and proactive engagement to ensure their applications remain secure, reliable, and effective.
This role combines hands-on technical support, development,



and problem-solving with leadership and mentoring responsibilities within the team. You will provide expert-level troubleshooting, design and implement solutions, estimate work effort, and produce technical documentation — all while sharing knowledge and guiding junior developers to drive continuous improvement.
Provide Level 3 technical support, investigating and resolving complex issues in line with service level agreements (SLAs).
Review peer code, ensuring adherence to quality standards, best practices, and security guidelines.
Minimum 6 years of experience in IT application development or support.
Minimum 5 years of experience in .NET development.
Experience with Azure DevOps, version control systems, and ticket management tools.
Experience with Azure services, particularly Logic Apps and Function Apps.
Front-end development experience with Angular and/or React.
Experience with SQL Server and database design.
Experience with web technologies such as HTML, CSS, and JavaScript.
Familiarity with ITIL or Managed Services environments.

📌 SENIOR .NET APPLICATIONS DEVELOPER (Mumbai)
🏢 Brennan It
📍 Mumbai