Senior Developer

At ALS, we encourage you to dream big. When you join us, you'll be part of a global team harnessing the power of scientific testing and data driven insights to build a healthier future.

Hours Per Week: 37
Days Per Week: Monday to Friday
Contract: Full Time & Permanent
Annual Salary: £45,000
Hiring Manager: Amy Jackman
Location: Coventry or Wakefield (other UK locations can be discussed)
Closing Date: Friday 24th July 2026

• Designing, developing, and maintaining backend systems using C# / .NET technologies.
• Providing 3rd line support for identifying and resolving bugs in the production environment.
• Enhancing existing modules within our Laboratory Information Management System (LIMS).
• Working with MS SQL Server for database design, query optimisation, and performance improvements.
• Developing and maintaining RESTful APIs and integrations with internal and external systems.
• Participating in solution design, code reviews, and promoting best practices within the team.
• Collaborating with business analysts, system specialists, and stakeholders to understand and translate business requirements into robust technical solutions.

• A minimum of 5 years' professional experience in software development.
• Strong proficiency in C# and .NET (Core or newer), and sound knowledge of object oriented principles.
• Solid experience with MS SQL Server, including stored procedures and performance tuning.
• Experience with VB.NET, with the view to update and migrate applications to C#.
• Previous work with LIMS or similar data driven business systems.
• Familiarity with Entity Framework Core, asynchronous programming, and API design.
• Hands on experience with version control systems (e.g., Git) and Agile methodologies.
• A logical, analytical approach and a commitment to writing maintainable, high quality code.

• Experience with SSRS.
• Experience with modern front end frameworks such as Blazor, React, or Angular.
• Knowledge of Azure, Docker, or Kubernetes.
• Exposure to DevOps, CI/CD pipelines, or automated testing frameworks.

• Annual Leave commencing at 25 days (rising to 30) plus 8 public holidays (pro rata for part time).
• Ability to buy annual leave.
• Enhanced Company Sick Pay Scheme.
• Salary Progression Scheme based on technical and behavioural competencies.
• 'Celebrating Success' Recognition Awards.
• Perkbox membership providing access to discount vouchers and wellness hub.
• Learning/study support.
• Group Personal Pension Plan.
• Car Parking on site.

To be eligible to work at ALS you must be a Citizen or Permanent Resident of the country you are applying for, or either hold or be able to obtain, a valid working visa.

ALS is proud to be an equal opportunity employer and is committed to fostering an inclusive work environment where the strengths and perspectives of each employee are both recognised and valued. ALS also welcomes applications from people with all levels of ability. Reasonable adjustments to support candidates throughout the recruitment process are available upon request.

Please apply online and provide a resume & cover letter that best demonstrate your motivation and ability to meet the requirements of this role.