Software Developer Intern - Summer 2026

Job Description

WE ARE HIRING!

AtkinsRéalis is seeking a Software Developer Intern – Summer 2026 to join our Denver, CO office.

ABOUT US

AtkinsRéalis is a world-class engineering services and nuclear organization. For over 50 years, we’ve partnered with public and private clients across the U.S. to deliver infrastructure planning, engineering, construction, environmental consulting, urban planning, architecture, and program management. Our depth and breadth of expertise enables us to tackle the most technically complex and time-sensitive projects—driving innovation, resilience, and real-world impact where it matters most.

Our Internship Program, Explore, is designed for college students pursuing a degree in a STEM field and provides opportunities to learn what it’s like to work in a professional environment and apply what’s learned in class to the real-world challenges we face every day.

RESPONSIBILITIES

• Work directly with project team and client staff to identify and develop web-based products that meet specific requirements
• Support efforts at all stages of the software development lifecycle
• Compile data and reports for internal and external stakeholders
• Assist in requirement refinement and product planning
• Monitor software’s performance, providing support and addressing any operational issues
• Create and maintain product documentation for both technical and non-technical staff

QUALIFICATIONS

• EXPERIENCE:
  • No experience is generally required if accepted into a Bachelor's or Master’s degree program in a related technical field.
• EDUCATION:
  • Must have completed 60 hours towards a Bachelor’s degree in Computer Science or be enrolled in a Master’s program in Information Systems from an accredited college/university by the start of the internship (Summer 2026).
• SPECIAL SKILLS:
  • Experience with C#, .NET platform, JavaScript, Typescript, SQL server database, and HTML
  • Web application development experience in .NET using ASP.Razor (highly preferred)
  • Ability to use API-based integration with LLMs
  • Ability and willingness to learn other skills not exposed to as yet
  • Should have good interpersonal skills and ability to work in a team environment
• PROFESSIONAL REGISTRATIONS:
  • None

WHY JOIN US?

AtkinsRéalis is growing fast in the U.S.—and there’s never been a more exciting time to be part of our journey.

We’re committed to engineering a better future for our planet and its people. That means creating solutions that matter, and building a workplace where every voice is heard, every perspective counts, and everyone belongs.

By connecting people, data, and technology across our global network, we’re tackling some of the world’s most complex challenges. And we’re looking for passionate, driven new professionals like you to help shape what’s next.

Let’s build the future—together.

WHAT WE OFFER AT ATKINSRÉALIS:

At AtkinsRéalis, our values—Safety, Integrity, Collaboration, Innovation, and Excellence—are more than just words. They are the foundation of who we are and how we work. These principles shape our culture, guide our decisions, and inspire us to create an environment where every team member feels empowered to grow, succeed, and make a meaningful impact.

As an Intern, you will participate in Explore, our intern development initiative, and will enjoy a host of benefits including:

Competitive salary Hands-on experience with industry leaders Support and mentorship from various professionals throughout the business Career and educational exploration opportunities such as Client Site Visits, Weekly Lunch & Learns, & various virtual and/or in-person activities

As an entry-level Full-Time employee, you will enjoy a robust rewards package including enrollment into Emerge, our new graduate experience, providing:

• Opportunities to work on various projects of ranging size and scope
• Support & structured mentorship from various professionals throughout the global AtkinsRéalis network
• Formal business and soft-skills training on topics such as time management, resilience, emotional intelligence, feedback, and communication
• Integration into a robust Emerging Professional Network
• Additional learning and development programs, training, career opportunities and a highly regarded tuition reimbursement program
• Additional benefits may include medical, dental, vision, company-paid life and short- and long-term disability benefits, employer-matched 401(k) with 100% vesting, employee stock purchase plan, Paid Time Off, leaves of absences options, f