Secure Software Developer Jobs in Montana (NOW HIRING)

Due to continued growth and increased demand, we’re looking for a C# Software Developer to help expand and enhance enterprise-level applications. This is a great opportunity to join a stable, collaborative engineering team where your work directly impacts customers and business outcomes.

You’ll play a key role in developing new features, improving existing systems, and contributing to scalable, secure software architecture.

• Growth-focused environment – expand your technical skills and influence architecture decisions
• People-first culture – your ideas are heard and valued from day one
• Stability + long-term opportunity – strong team retention and supportive leadership
• Meaningful work – build solutions that drive real value for customers
• Collaborative team – work alongside engineers who share knowledge and support each other
• This is a desktop-first development role (not web-focused)

• Design, develop, and enhance enterprise applications in a multi-tier architecture
• Write clean, maintainable code and participate in code reviews
• Collaborate with QA and cross-functional teams to deliver high-quality software
• Contribute to architecture decisions with a focus on scalability, performance, and security
• Translate business requirements into technical solutions
• Build and maintain backend services and system integrations supporting desktop applications
• Perform unit and system testing, supporting TDD practices
• Troubleshoot issues and assist with escalations when needed
• Participate in an on-call support rotation

• 3+ years of professional software development experience
• Strong background in C#/.NET and object-oriented programming
• Experience with Microsoft SQL Server and relational databases
• Experience implementing MVVM design pattern in WPF applications
• Familiarity with Entity Framework (or similar ORM tools)
• Hands-on experience building Windows desktop applications using WPF/XAML
• Understanding of client-server or distributed architectures
• Experience with test-driven development and automated testing
• Experience supporting backend services and system integrations

• Strong analytical and problem-solving skills
• Ability to work both independently and collaboratively
• Effective communication and organization skills
• A mindset focused on continuous improvement and innovation

• Bachelor’s degree in Computer Science or a related field (or equivalent experience)

This is a Contract to Hire position based out of Billings, MT.

The pay range for this position is $36.06 - $43.27/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)

This is a fully remote position.

This position is anticipated to close on Jun 24, 2026.

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.

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.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.