Full Stack Software Developer

Pass Ltd; Thornaby-on-Tees; On-site; GBP 40,000 - 60,000; Full time

Job summary

A leading provider in the Test Equipment industry is seeking a full-stack software developer to join their growing team in Thornaby-on-Tees. The role involves building and maintaining applications, collaborating on high-quality solutions, and contributing to R&D projects. Ideal candidates should have over 5 years of experience in C#, ASP.NET, and SQL, along with strong problem-solving skills and a collaborative mindset.

Qualifications

• Full understanding of C#, ASP.NET and SQL with at least 5+ years in a commercial role.
• Strong problem-solving, debugging and testing skills.
• Ability to support in-house legacy desktop systems.

Responsibilities

• Build and maintain in-house applications in C#.NET.
• Collaborate with developers to deliver high-quality solutions.
• Assist in troubleshooting, debugging, and upgrading existing systems.

Skills

C#

ASP.NET

SQL

Problem-solving

Debugging

Collaboration

API Development

Version Control

Education

Degree in Computer Science or Software Engineering

Tools

Docker

Blazor

Entity Framework

WPF

Job description

Job Overview

We are looking for a full‑stack software developer to join our small but growing development team based in Thornaby. You will be involved in building and maintaining a range of applications used across the business. Beyond the day‑to‑day tasks, this role provides plenty of opportunities for professional growth and hands‑on experience in a variety of projects.

Responsibilities

• Building and maintaining in‑house applications in C#.NET.
• Work on both front‑end and back‑end functionality and interactivity.
• Collaborate with developers to deliver high‑quality solutions.
• Contribute to R&D projects, driving new innovation.
• Willingness to mentor junior developers.
• Assist in troubleshooting, debugging, and upgrading existing systems.
• Contribute to code reviews and follow best practices in software development.
• Keep up to date with emerging technologies and bring fresh ideas to the team.
• Design, develop and maintain Web/Desktop applications.

Qualifications

• A full understanding of C#, ASP.NET and SQL with at least 5+ years' experience working within a commercial role.
• Strong problem‑solving, debugging and testing skills.
• Ability to support in‑house legacy desktop systems.
• Design and consume APIs using Entity Framework Core.
• ASP.NET Core MVC & Entity Framework.
• Version control (DevOps or GitLab).
• Document technical processes, decisions and system change requests.
• A collaborative mindset and ability to work effectively in a team environment.
• Continuously learn and stay up to date with modern tools, technologies and development practices.
• Degree in Computer Science, Software Engineering, or a related discipline (or equivalent experience).

Nice to Have

• Experience with WPF applications.
• Blazor.
• Avalonia.
• Docker.
• Experience within a Calibration industry.

Technology Stack

• C# .NET, ASP.NET Core
• API Development and maintenance
• MVC & Entity Framework
• Blazor
• SQL Server
• WPF and Avalonia
• Azure
• Linux
• Docker
• Desktop and Web development

Company

PASS Ltd is a leading provider within the Test Equipment, Training & Calibration Industry. We supply, service, and test measurement equipment for industries such as Oil and Gas, Energy, Utilities, Public Sector, Construction, Manufacturing, Transport and Facilities Management companies. Founded in 2001, we have sites in Teesside, Leeds, Glasgow and Belfast and Stevenage.