API Automation Engineer

Join MSBC as a QA Engineer (C#) – Driving Excellence in Backend and API Automation

We are seeking a skilled and detail-oriented QA Engineer with 5+ years of experience in backend testing and API automation. In this role, you will play a critical part in ensuring the robustness and reliability of backend systems through strategic test planning, automation development, and strong collaboration with engineering teams. If you're passionate about building scalable test frameworks and working with complex API ecosystems, we’d love to hear from you.

Key Responsibilities

• API Test Automation
• Develop, maintain, and execute automated test cases for RESTful APIs , SOAP services , and Protobuf messages using .NET-based frameworks .
• Design reusable automation frameworks and scripts tailored to backend and integration workflows.
• Implement automation for FIX protocol interfaces and message validation processes.
• Manual API Testing
• Conduct manual testing for API endpoints to ensure functional accuracy and data integrity.
• Validate message serialization / deserialization and protocol compliance for Protobuf and FIX.
• Test Strategy & Execution
• Design and execute detailed test plans, test cases, and test scripts focused on API and backend systems.
• Perform regression, integration, and performance testing for service-level validation.
• Collaboration & Reporting
• Partner with development, architecture, and product teams to understand API specifications and system behavior.
• Track and communicate test coverage, bugs, and progress using test management tools.
• Continuous Improvement
• Enhance existing test frameworks and propose automation strategies for increased efficiency.
• Stay updated on evolving tools, libraries, and best practices in API and backend testing.

Required Skills & Qualifications :

Note :

Shift timings align with UK working hours. This role is based in Ahmedabad, but candidates from other cities or states are encouraged to apply as remote or hybrid working options are available.

MSBC Group has been a trusted technology partner for over 20 years, delivering cutting-edge digital and AI-powered solutions across financial services, manufacturing, logistics, and construction sectors.

We specialise in Custom Software Development, Staff Augmentation, Managed Services, and Business Process Outsourcing—driving innovation and enterprise transformation globally.

If you're passionate about trading systems, connectivity, and creating high-impact technology solutions, we’d love to hear from you.