Senior Software Engineer

Experience Requirements :

• 8+ years of software development experience
• Full-stack development experience
• Ability / Experience in mentoring junior developers
• Proficiency in migrating legacy code
• Proficiency in performance tuning / optimizing

Core Technical Requirements :

• Programming Languages : JavaScript, TypeScript, C# / .NET
• Frontend : Angular (or React / Vue.js)
• Testing : Unit testing (NUnit, Jasmine, Jest)
• Architecture : N-tier Application Development, Microservices
• Integration : APIs, RESTful services, message queues
• Performance : Caching strategies, optimization techniques
• Modernization : Application modernization, code refactoring
• Development Tools : Extensive IDE experience (VS Code, Visual Studio)
• Database : Data modeling (3rd normal form), SQL Server / PostgreSQL
• Cloud : Azure or AWS fundamentals
• DevOps : CI / CD pipelines, automated deployment
• Top Skills Details

C#

• Additional Skills & Qualifications

Nice to Have :

• Legacy Technologies : Classic ASP, legacy system migration
• UI Components : Telerik, DevExpress
• Cloud Services : Cloudflare, CDN management
• Microsoft Stack : UWP, MAUI, Blazor
• Additional : API Management, containerization (Docker), monitoring tools
• Database : NoSQL experience (MongoDB, Redis)
• Security : OAuth, JWT, security best practices
• Experience Level

Expert Level

• Job Type & Location

This is a Contract to Hire position based out of Holland, MI.

• Pay and Benefits

The pay range for this position is $40.00 - $60.00 / hr.

Eligibility requirements apply to some benefits and may depend on your job

classification and length of employment. Benefits are subject to change and may be

subject to specific elections, plan, or program terms. If eligible, the benefits

available for this temporary role may include the following :

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off / Leave (PTO, Vacation or Sick Leave)
• Workplace Type

This is a fully onsite position in Holland,MI.

• Application Deadline

This position is anticipated to close on Nov 14, 2025.

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About TEKsystems :

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.