Senior Software Developer

AtkinsRéalis; Denver (CO); On-site; USD 80,000 - 130,000; Full time

Benefits offered by this job

Medical, dental, vision benefits

401(k) with vesting

Employee stock purchase plan

Job summary

AtkinsRéalis is seeking a Senior Software Developer in its National Technology Practice to design, develop, and deliver enterprise applications using C#, .NET, Python, and JavaScript. You’ll collaborate with clients and stakeholders to translate requirements into scalable solutions and contribute to architecture and DevOps practices across Azure DevOps environments.

Ideal candidates bring 8–10+ years of experience, a BS in CS/IT, and strong skills in database design, AI/ML concepts, and modern

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent experience with four+ years in engineering or related area.
• 8–10+ years of professional software development experience.
• Experience applying AI/ML technologies to enterprise applications and automation.
• Ability to integrate AI capabilities into software development workflows using tools such as GitHub Copilot.

Responsibilities

• Lead and participate in the design, development, and delivery of enterprise applications using modern technologies (C#, .NET, Python, JavaScript/Node.js).
• Collaborate with clients and stakeholders to translate requirements into technical specifications and scalable software solutions.
• Develop backend services, APIs, and data-driven web/desktop/mobile applications with high performance and maintainability.
• Contribute to architecture decisions and design patterns; lead code reviews and documentation.

Skills

Software development

C#/.NET

Python

JavaScript/TypeScript

Node.js

AI/ML concepts

GitHub Copilot

Interpersonal skills

Communication

Education

Bachelor's degree in CS/IT or related field

Tools

Azure DevOps

Power BI

SharePoint

SQL Server

PostgreSQL

Oracle

Git

Job description

Job Description

Overview

We’re hiring an experienced and motivated Senior Software Developer in our National Technology Practice to support key internal and external clients from one of our many hub offices across the U.S.

Your role

Lead andparticipatein the design, development, and delivery of enterprise applications using modern technologies including C#, .NET (Razor/Blazor),Python andJavaScript/Node.js

Collaborate with clients and stakeholders to analyze business needs, define scope, and translate requirements into technical specifications and scalable software solutions.

Design and develop backend services, APIs, and data-drivenWeb,desktopandmobileapplications, ensuring high performance, reliability, and maintainability.

Contribute to and lead application architecture and systemdesignleveragingestablished design patterns and reusable frameworks.

Develop,maintain, andoptimizeSQL-based data solutions, including:

Writing andmaintainingSQL scripts

Designing stored procedures, views, and data transformations

Supporting data integrity and performance tuning

ParticipateinDevOpsbestpractices, including:

Building andmaintainingCI/CD pipelines in Azure DevOps

Managing code repositories using Git

Supporting automated build, release, and deployment processes

Work across development, test, and production environments, ensuring smooth deployments, environment consistency, and release quality.

Develop high-quality, well-documented code that adheres to best practices and coding standards, minimizingreworkand ensuring long-term maintainability.

Lead or contribute to code reviews, mentoring juniordevelopersand promoting continuous improvement in development standards.

Produce andmaintaintechnical documentation, including system diagrams, data documentation, and design artifacts, clearly communicating architectural decisions.

Provide database design and managementexpertise, ensuring efficient data models and alignment with application requirements.

• Participate in or lead software development best practices initiatives, helping define standards, improve processes, and drive engineering excellence.

About you

• Bachelor’s degree (B.S. or B.A.) in Computer Science, Information Technology, or a related discipline; or equivalent experience with four or more years of relevant programming experience in engineering or a related field.
• This level is typically achieved with 8–10+ years of professional experience in software development or related areas.
• Experience applying AI and machine learning technologies (e.g., large language models, computer vision) to enhance enterprise applications, automate workflows, and deliver data-driven solutions.
• Ability to integrate AI capabilities into software development workflows using tools such as GitHub Copilot to improve productivity, accelerate delivery, and maintain code quality.
• Preferred experience with:
  • Enterprise software solutions
  • Power BI
  • SharePoint
  • SQL Server and other relational databases (e.g., Postgres, Oracle)
• Experience with C# and the .NET platform, including ASP.NET Core
• Experience with Python preferred
• Experience with JavaScript/TypeScript and Node JS.
• Strong background in database design and/or administration of enterprise relational database management systems.
• Demonstrated excellent interpersonal, communication, and technical writing skills.

Rewards & benefits

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.

Depending on your employment status, AtkinsRéalis 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, flexible work options, recognition and employee satisfaction programs, employee assistance program, and voluntary benefits. You can review our comprehensive benefits page here.

About AtkinsRéalis

We’re AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world’s infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We’re committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

Expected compensation range is between $80k-$130k+ annually depending on skills, experience, and geographical location.

AtkinsRéalis is an equal opportunity, Drug-Free employer EOE/Veteran/Disability

Please review AtkinsRéalis’ Equal Opportunity Statement here.

Applications for this position are accepted on a rolling basis; no application deadline applies.

AtkinsRéalis cares about your privacy and is committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use and transfer your Personal Data. By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.

Note to staffing and direct hire agencies:

In the event a recruiter or agency who is not on our preferred supplier list submits a resume/candidate to anyone in the company, AtkinsRéalis family of companies, we explicitly reserve the right to recruit and hire the candidate(s) at our discretion and without any financial obligation to the recruiter or agency. https://careers.atkinsrealis.com/recruitment-agencies

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis_, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.