Principle Software Developer

Harvey Nash Group; Newcastle upon Tyne; Hybrid; GBP 65,000 - 85,000; Full time

Job summary

A leading software development firm in the UK is seeking a Principal Developer who will take charge of technical architecture for innovative software projects. You will lead a team, influence architectural decisions, and work on greenfield projects focused on modern technologies. Ideal candidates have strong experience in .NET or full-stack development, a passion for scalable code, and excellent leadership skills. This role offers hybrid flexibility and a competitive benefits package.

Benefits

Competitive salary and benefits package

Hybrid flexibility

Supportive and collaborative environment

Greenfield projects

Qualifications

• Strong experience in .NET or full‑stack development.
• Proven track record with RESTful APIs, microservices, and modular monolith design.
• Excellent communication and leadership skills.

Responsibilities

• Take ownership of technical architecture and design for new projects.
• Build and optimise RESTful APIs, microservices, and modular monolith architectures.
• Contribute to strategic technical decisions.

Skills

Strong experience in .NET or full‑stack development

Proven track record with RESTful APIs

Experience with microservices

Passion for clean, scalable code

Leadership skills

Job description

Are you ready to take the lead in shaping cutting-edge software solutions?

This opportunity to join a UK‑leading software house on a mission to deliver innovative, scalable, and high‑performing applications, and we want YOU to be part of it.

As a Principal Developer, you'll play a fundamental role in guiding a team of six skilled developers, driving technical excellence, and influencing architectural decisions. This is your chance to work on greenfield projects that influence modern technologies and best practices, no legacy code, just fresh innovation.

What You'll Do

• Take ownership of technical architecture and design for new projects.
• Build and optimise RESTful APIs, microservices, and modular monolith architectures.
• Contribute to strategic technical decisions and ensure best practices across the team.
• Design and implement robust solutions using .NET or full‑stack technologies.

What We're Looking For

• Strong experience in .NET or full‑stack development.
• Proven track record with RESTful APIs, microservices, and modular monolith design.
• A passion for clean, scalable code and modern software architecture.
• Excellent communication and leadership skills.

Why Join?

• Work for a UK‑leading organisation with a reputation for innovation.
• Hybrid flexibility, up to 2 days per week in the office.
• A supportive, collaborative environment where your ideas matter.
• Competitive salary and benefits package.
• Greenfield projects, be part of building something new from the ground up.

Ready to make an impact?

Apply today and help us build the future of software solutions.