Job Vacancy Senior Software Developer (C#, .NET, JavaScript)

Cwmbrân

VIQU IT

.NET

API

API REST

Job position Senior Software Developer (C#, .NET, JavaScript)

Permanent

As soon as possible

Cwmbrân, Wales, United Kingdom

Published on 05/08/2025

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Viqu has partnered with a leading organisation seeking a Senior Software Developer with strong full stack expertise in C#, JavaScript, REST APIs, and SQL. As a Senior Software Developer, you'll build responsive web interfaces and develop robust backend services, delivering scalable, high-performance solutions. You'll join a fast-paced Agile team, driving new features and maintaining critical systems that support essential public services.

Key Responsibilities of the Senior Software Developer:

Design, develop and maintain responsive web applications focusing on user experience and accessibility

Deliver frontend components using JavaScript, Bootstrap and CSS, ensuring consistency and usability

Collaborate with back-end developers to integrate service-layer logic and APIs

Participate in Agile ceremonies including sprint planning, demos, and retrospectives

Mentor junior developers and support knowledge sharing within the team

Troubleshoot and resolve software defects in production and test environments

Support documentation and adherence to coding standards and best practices

Collaborate with subject matter experts, testers, and technical teams to ensure software solutions meet user and operational requirements.

Key Requirements of the Senior Software Developer:

Proven commercial experience developing frontend web applications using JavaScript, Bootstrap and CSS

Strong knowledge of C# and object-oriented programming principle

Experience consuming and working with RESTful APIs and backend services

Competence in wri

Discover VIQU IT

Birmingham, United Kingdom

20 - 99 employees

Recruitment agency

At VIQU IT, we’re focused on bringing a knowledgeable and honest approach to IT recruitment, devoting ourselves to improving the quality of life for our candidates through excellent IT job opportunities, our clients with high-quality customer service, and our team through continual support and training. As an IT recruitment agency based in Birmingham and Southampton, our recruitment team works with everyone from global conglomerates to innovative SMEs, identifying high-quality IT contractors and permanent employees, in addition to providing consultancy services for IT project-based work.

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Senior Software Developer (C#, .NET, JavaScript)

VIQU IT