Demo

Staff Software Engineer

Thermo Fisher Scientific
Mississippi, MS Full Time
POSTED ON 1/5/2026
AVAILABLE BEFORE 2/12/2026
Work Schedule

Standard (Mon-Fri)

Environmental Conditions

Office

Staff Software Engineer (Angular / C#.NET / SQL / MongoDB / Cloud Services)

Position Summary:

The Staff Software Engineer will be responsible for architecting, developing, and maintaining modern, scalable web applications using Angular for the front end and C#.NET for the back end. This role includes constructing reliable integrations with SQL Server, MongoDB, and cloud platforms like Azure or AWS to support critical business and internal applications.

This position calls for a robust full-stack development background, a comprehensive grasp of software building principles, and the skill to lead technical initiatives while collaborating closely with multi-functional teams.

Key Responsibilities

  • Manage the development, creation, and maintenance of web applications with Angular, C#.NET, and ASP.NET Core.
  • Architect and build RESTful APIs and microservices to support scalable and secure application development.
  • Develop and improve databases on SQL Server and MongoDB, ensuring data integrity, performance, and security.
  • Develop and lead cloud-based deployments using platforms such as Azure App Services, Azure Functions, or AWS Lambda.
  • Offer technical guidance and mentorship to junior developers, implementing guidelines in coding, testing, and deployment.
  • Collaborate with product owners, QA, and DevOps teams to define requirements, work you're doing, and timelines.
  • Integrate third-party and internal APIs and ensure seamless data flow between systems.
  • Address and resolve complex technical issues across the application stack.
  • Implement CI/CD pipelines and automated testing to streamline deployment processes.
  • Keep user documentation current, covering architecture diagrams, updates to SRS/SDS, and deployment procedures.

Qualifications

  • Bachelor’s degree in Computer Science, Engineering, or related field.
  • 5 years of hands-on experience in web application development using C#.NET and Angular.
  • Strong front-end experience with Angular (v10 or newer), TypeScript, HTML5, and CSS3.
  • Deep understanding of ASP.NET Core, Entity Framework, and REST API development.
  • Solid experience working with both SQL Server and MongoDB databases (data modeling, queries, and performance tuning).
  • Shown experience deploying and maintaining applications in cloud environments (Azure or AWS).
  • Proficiency in leading continuous integration/continuous deployment workflows, Git, Azure DevOps, or equivalent platforms.
  • Strong understanding of object-oriented programming, SOLID principles, and software architecture guidelines.
  • Excellent communication, problem-solving, and leadership skills.
  • Must be legally authorized to work in the United States without sponsorship.

Preferred Qualifications

  • Experience with .NET 6 , microservices architecture, and containerization (Docker/Kubernetes).
  • Knowledge of serverless computing, API gateways, and cloud monitoring tools.
  • Experience with Agile/Scrum methodologies.
  • Prior experience in manufacturing, laboratory, or regulated environments is a plus.

Compensation And Benefits

The salary range estimated for this position based in Indiana is $93,800.00–$140,675.00.

This position may also be eligible to receive a variable annual bonus based on company, team, and/or individual performance results in accordance with company policy. We offer a comprehensive Total Rewards package that our U.S. colleagues and their families can count on, which includes:

  • A choice of national medical and dental plans, and a national vision plan, including health incentive programs
  • Employee assistance and family support programs, including commuter benefits and tuition reimbursement
  • At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability in accordance with company policy
  • Retirement and savings programs, such as our competitive 401(k) U.S. retirement savings plan
  • Employees’ Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount

For more information on our benefits, please visit: https://jobs.thermofisher.com/global/en/total-rewards

Salary : $93,800 - $140,675

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