Back End (C# .NET) Software Engineer

CompanyThermo Fisher Scientific

LocationUnited Kingdom

Posted At2/5/2026

UK Visa Sponsorship Analytics

Occupation Type

Programmers and software development professionals

Occupation Code Skill LevelHigher Skilled

Sponsorship Salary Threshold

£54,700 (£28.05 per hour)

Occupation rate applies

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Description

Work Schedule

Standard (Mon-Fri)

Environmental Conditions

Office

As the world leader in serving science, we solve the world’s toughest problems, like giving cancer patients hope, ensuring water and food are safe, helping law enforcement solve cases through forensics and most recently, serving as the largest provider of COVID-19 solutions.

Our Data Science, Digital and IT careers are a unique opportunity to apply your specialized skills and advanced experience in analytics, statistics, data science, programming, information technology and more to drive our Mission of enabling our customers to make the world healthier, cleaner, and safer. It’s truly a career where your work makes a positive impact in our world. When you join Thermo Fisher Scientific, you’ll make an impact inside and outside the company on work that matters. #TechWithPurpose

Role Overview:

We are looking for a talented mid-level C# .Net Back End Software Engineer to join our dynamic team. This role will engage in the comprehensive software development lifecycle (SDLC), involving design, development, testing, deployment, monitoring, and maintenance of software systems. This role requires a solid foundation in software development, the ability to work collaboratively with cross-functional teams, and a commitment to learning and growth within the company.

This is a 2-year fixed term, home-based role for qualified candidates in the UK. Must have authorization to work in the UK without sponsorship for the duration of the fixed term.

Our Tech Stack:

Programming Languages: JavaScript, C# .Net, Azure Bicep, YAML, Python

Frameworks and Libraries: ReactJS, NextJS, .Net Core

Databases: Azure Cosmos DB, Snowflake, Azure Data Factory

Cloud Services: Azure - Azure Functions, Service Bus, Azure Storage, Key Vault

CI/CD: Azure DevOps

Automation and Testing: PactFlow, Cypress.io, Selenium

Monitoring and Logging: Azure Monitor, App Insight/Alerts/logs

Version Control: Git

Key Responsibilities:

Contribute to our governance, principles, and ways of working.
Design, develop, and maintain software applications.
Collaborate with product managers, designers, and other engineers.
Write clean, scalable, and efficient code.
Troubleshoot, debug, and upgrade existing software.
Participate in code reviews and contribute to team knowledge sharing.

Qualifications & Experience:

Must have:

3-5 years' experience as a Software Engineer or similar role.
Hands-on experience and proficiency with C# .Net specifically Azure Cloud usage.

Solid understanding of software development methodologies.

Knowledge of RESTful APIs and microservices architecture.

Strong understanding of serverless architecture and cloud computing principles.

Experience with building data ingestion with multiple file format, API integration.

Knowledge of TDD, BDD including writing unit test, integration and E2E testing.

Strong problem-solving skills and attention to detail.

Bachelor’s degree in computer science, engineering, or a related field (or equivalent work experience).

Nice to have:

Experienced with other elements of our tech stack.
Experienced with infrastructure-as-code tools such as Bicep, ARM Templates, Terraform, or similar.
Contributions to open-source projects or personal projects.

Nice to have Certifications:

Microsoft Certified: Azure Developer Associate.
Microsoft Certified Azure Solutions Architect Associate.

Full Job Profile

Skillset:

Technical Skills:

Programming Languages: JavaScript, C# .Net, YAML

Frameworks and Libraries: React, NextJS, .Net Core

Databases: Azure Cosmos DB, Snowflake, Azure Data Factory

Cloud Services: Azure - Azure Functions, Service Bus, Azure Storage, Key Vault

CI/CD: Azure DevOps

Automation and Testing: PactFlow, Cypress.io, Selenium

Monitoring and Logging: Azure Monitor, App Insight/Alerts/logs

Version Control: Git

Soft Skills:

Problem-Solving: Strong analytical and problem-solving abilities.
Communication: Good written and verbal communication skills.
Team Collaboration: Ability to work effectively in a team setting.
Adaptability: Willingness to learn new technologies and adapt to changing requirements.
Time Management: Ability to manage multiple tasks and prioritize effectively.

Our Engineering Responsibilities:

Design and Development:

Collaborate with engineers, product managers, and designers to understand requirements and assist in designing solutions.
Develop scalable, maintainable, and secure software applications.
Write clean, efficient, and well-documented code.

Testing and Quality Assurance:

Develop and execute automated tests to ensure software quality.
Participate in code reviews to ensure code quality and adherence to best practices.

Deployment and Operations:

Assist in implementing CI/CD pipelines to automate the build, test, and deployment processes.
Create automated deployment of applications to our cloud environments.

Monitoring and Maintenance:

Monitor application performance and availability using appropriate tools.
Participate in the resolution of production issues and provide support in troubleshooting.

Collaboration and Learning:

Work closely with cross-functional teams to align on project goals and deliverables.
Seek mentorship from senior developers and actively engage in learning opportunities.
Participate in team meetings, stand-ups, and retrospectives.

Continuous Improvement:

Stay up-to-date with the latest industry trends, tools, and technologies.
Suggest improvements to the development process and toolchain.
Contribute to a culture of continuous learning and improvement within the team.

Performance Metrics:

Code Quality: Measured through code reviews, adherence to coding standards, and test coverage.
Task Completion: Timely completion of assigned tasks and contributions to project milestones.
System Reliability: Uptime and performance of deployed applications.

Issue Resolution Time: Time taken to identify and assist in resolving production issues.

Team Contribution:

Participation in team activities, collaboration, and continuous learning efforts.

At Thermo Fisher Scientific, we are committed to fostering a healthy and harmonious workplace for our employees. We understand the importance of creating an environment that allows individuals to excel. Please see below for the required qualifications for this position, which also includes the possibility of equivalent experience:

Able to communicate, receive, and understand information and ideas with diverse groups of people in a comprehensible and reasonable manner.
Able to work upright and stationary for typical working hours.
Ability to use and learn standard office equipment and technology with proficiency.
Able to perform successfully under pressure while prioritizing and handling multiple projects or activities.
May require as-needed travel (0-20%).