Senior Software Developer

NRG Resourcing Ltd; North East; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading SaaS provider is seeking a Senior Software Developer in Durham to contribute to full-stack development and mentor junior developers. This role involves utilizing .NET stack and modern front-end technologies, aiming to enhance growth and innovation within the company. Opportunities for career progression and development are emphasized, making it an exciting chance to join a progressive team.

Qualifications

• 5+ years of professional software development experience.
• Strong proficiency in the Microsoft .NET ecosystem.
• Solid experience with modern front-end technologies.

Responsibilities

• Design, develop, and maintain high-quality software using the .NET stack.
• Contribute to front-end development with tools like React or Angular.
• Mentor junior engineers and participate in architectural discussions.

Skills

Microsoft .NET ecosystem (C#, .NET Core/6+, ASP.NET)

Modern front-end technologies (React, Angular, Vue)

RESTful APIs

SQL/NoSQL databases

Cloud services (Azure or AWS)

Mentoring junior team members

Tools

Docker

Kubernetes

Job description

Overview

Job Title: Senior Software Developer

Location: Durham

Job Type: Permanent

NRG is working with a rapidly growing SaaS business to recruit a Senior Software Developer. This is a fantastic opportunity to join a company during a period of significant expansion. They’re looking for a skilled and passionate Developer who can help support and accelerate this growth. In return, you’ll be part of a progressive, forward-thinking team that actively invests in your development through training, certifications, and career progression opportunities.

The Role

As a Senior Software Developer, you’ll be a hands-on contributor in designing and delivering robust, scalable, and maintainable solutions. You’ll work across the full stack, primarily in .NET on the backend, with modern front-end technologies, and play a key role in mentoring junior developers, promoting best practices, and guiding architectural decisions.

What You’ll Do

• Design, develop, and maintain high-quality software using the .NET stack (C#, ASP.NET Core, Entity Framework, etc.)
• Contribute to front-end development using tools such as React, Angular, or Vue.js
• Collaborate with product managers, designers, and other engineers to build end-to-end features
• Review code, provide constructive feedback, and mentor junior engineers
• Participate in architectural discussions and help define technical direction
• Champion clean code, testability, performance, and scalability across the team

What We’re Looking For

• 5+ years of professional software development experience
• Strong proficiency in the Microsoft .NET ecosystem (C#, .NET Core/6+, ASP.NET)
• Solid experience with modern front-end technologies (React, Angular, or Vue)
• Proven ability to guide, mentor, and support junior team members
• Experience working with RESTful APIs, SQL/NoSQL databases, and cloud services (e.g., Azure or AWS)
• A passion for continuous improvement, knowledge sharing, and staying up to date with the latest tech trends

Nice to Have

• Experience with DevOps practices and CI/CD pipelines
• Familiarity with containerization (Docker, Kubernetes)
• Exposure to Domain-Driven Design or microservices architecture

If this role sounds of interest, click ‘apply now’ and a member of our team will be in touch.

NRG is an equal opportunities employer committed to promoting a diverse and inclusive workplace. We oppose all forms of unlawful or unfair discrimination on the grounds of any protected characteristic. Our aim is to create an environment that encourages diversity, builds on individual differences, and responds equitably to the needs of all. We proactively take steps to fulfil our legal obligations, remove barriers, monitor for fairness, reflect the communities we serve, and enforce a zero-tolerance policy for breaches of our Equality and Diversity policy.