Senior Software Developer

$80k - $130k

Full-time

AtkinsRéalis

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 and participate in the design, development, and delivery of enterprise applications using modern technologies including C#, .NET (Razor/Blazor), Python and JavaScript/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-driven Web, desktop and mobile applications, ensuring high performance, reliability, and maintainability.
Contribute to and lead application architecture and system design leveraging established design patterns and reusable frameworks.
Develop, maintain, and optimize SQL-based data solutions, including:
Writing and maintaining SQL scripts
Designing stored procedures, views, and data transformations
Supporting data integrity and performance tuning
Participate in DevOps best practices, including:
Building and maintaining CI/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, minimizing rework and ensuring long-term maintainability.
Lead or contribute to code reviews, mentoring junior developers and promoting continuous improvement in development standards.
Produce and maintain technical documentation, including system diagrams, data documentation, and design artifacts, clearly communicating architectural decisions.
Provide database design and management expertise, 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.
Are you ready to expand your career with us? Apply today and help us shape something extraordinary.
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.
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.

Apply

Vacancy posted a month ago

Similar jobs that could be interesting for youBased on the Senior Software Developer in Denver, CO vacancy

Senior Software Developer (Onsite)
$86.8k - $165.2k
...to accomplish air, space and missile defense missions. In this role, you will be joining a talented team of software engineers who are designing and developing a reusable software foundation to build satellite command and control software. This position is an onsite role...
Senior
Temporary work
Work experience placement
Work at office
Remote work
Relocation package
Flexible hours
Raytheon
Aurora, CO
4 days ago
Senior Software Engineer/Developer - Android
...Senior Software Engineer/Developer - Android Description seeking a Sr. Engineer/Developer Android to join their team in Denver CO. This will be a hybrid role. This is solely Android. This role will initially open up for the Denver area with the potential...
Senior
Full time
Work at office
2 days per week
1 day per week
Esrhealthcare
Denver, CO
11 hours ago
Senior Software Developer (Onsite)
...Software Engineer In this role, you will be joining a talented team of software engineers who are designing and developing a reusable software foundation to build satellite command and control software. This position is an onsite role in Aurora, CO. What You Will...
Senior
Relocation package
Raytheon
Aurora, CO
3 days ago
Distributed Systems Software Engineer, GovCloud - Senior/Lead
$148.5k - $260.1k
...Entry Card, U.S. Government CAC/PIV.Distributed Systems Software Engineer - GovCloud (Senior/Lead) Our Public Cloud engineering teams are responsible... ...that are highly available, and a proven ability to design, develop, and optimize the core back-end systems. This role...
Senior
Full time
Local area
Salesforce
Denver, CO
1 day ago
Senior Software Developer
$125k - $155k
...Senior Developer We are seeking passionate and experienced Senior Developer to join our dedicated Verification team as we embark on a ground... ..., while ensuring the highest quality standards for our software products, in a fast-paced, hard working environment. Your skills...
Senior
Work at office
Work from home
hackajob
Denver, CO
3 days ago
Senior Software Developer, Front-end
$98.5k - $206.8k
Job Title: Senior Software Developer, Front-endJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: LocalAnticipated Posting End: 9/20/2026The...
Senior
Contract work
Work experience placement
Flexible hours
CACI International
Denver, CO
3 days ago
Senior Software Developer
$79.8k - $178.1k
...Job Description As a member of the software engineering division, you will apply basic to intermediate knowledge of software architecture... ...to perform software development tasks associated with developing, debugging or designing software applications or operating systems...
Senior
Temporary work
Relocation
Flexible hours
Oracle
Denver, CO
3 days ago
Senior Lead Software Engineer
DescriptionThe Senior Lead Software Engineer is a senior technical leader responsible for designing, developing, and delivering innovative solutions to complex business and technical challenges. This role provides architectural leadership, drives engineering best practices...
Senior
Work experience placement
Tyler Technologies
Lakewood, CO
2 days ago
Senior DevOps ServiceNow Developer
...MANTECH seeks a motivated, career and customer-oriented Senior DevOps ServiceNow Develope r to join our team in Aurora, CO . In this role,... ...additional IT experience in lieu of a degree. ·5+ years of software development experience. · Experience working on a...
Senior
Work at office
MANTECH
Denver, CO
11 hours ago
Senior Application Security Engineer
$165k - $225k
...superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors — enabling the U.S. and its... ...advantage and we are better together.YOUR MISSIONAs a Senior Application Security Engineer, you will be instrumental in implementing...
Senior
Permanent employment
Shift work
True Anomaly
Denver, CO
3 days ago
Mid-Senior Full Stack Developer
$108.4k - $227.5k
Job Title: Mid-Senior Full Stack DeveloperJob Category: EngineeringTime Type: Full timeMinimum... ...partners. As a Mid-Senior Full Stack Developer, you will operate within a hardened, AWS... ...10+ years (senior-level) of full-stack software engineering experience. Advanced...
Senior
Contract work
Work experience placement
Flexible hours
CACI International
Aurora, CO
11 hours ago
Senior Staff Software Engineer, Marketing Technology
$191k - $225k
...collaborative and inclusive workplace, both physically and virtually. Learn more about our Total Rewards philosophy . Senior Staff Software Engineer, Marketing Technology About Gusto Gusto is a modern, online people platform that helps small businesses take...
Senior
Full time
Work at office
Local area
Remote work
2 days per week
3 days per week
Gusto
Denver, CO
1 day ago
Senior Frontend Platform Engineer
$66 - $74 per hour
DescriptionKforce is seeking a Senior Frontend Platform Engineer on behalf of our major telecommunications... ....Responsibilities:* Design and develop reusable frontend platform capabilities... ...building scalable, maintainable software with a focus on extensibility* Strong systems...
Senior
Flexible hours
KForce
Greenwood Village, CO
1 day ago
Senior Software Developer
$120k - $160k
...Senior Software Developer Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you'll be responsible for identifying and autonomously implementing ideas and solutions as it relates...
Senior
Work at office
3 days per week
Iridium Satellite Communications
Denver, CO
11 hours ago
Senior Java developer
...with Agile development methodology (SCRUM)Previous experience developing in FlexPrevious experience developing in PowerBuilderExcellent... ...SummaryType: Full-timeFunction: Information TechnologyExperience level: Mid-Senior LevelIndustry: Information Technology And Services
Senior
Work at office
Immediate start
Artech
Denver, CO
2 days ago
Cloud Computing Application Architect, Senior
$86.8k - $198k
...improve mission-critical applications? We need you to help us develop cloud-based solutions for some of GEOINT's toughest challenges.... ...strategiesExperience working with application development teams across the software development lifecycle and creating solutions to complex...
Senior
Full time
Contract work
Part time
Work at office
Local area
Remote work
Booz Allen Hamilton
Aurora, CO
2 days ago
Senior AI Engineer
$130k - $180k
...and foster trusted communities. As a Senior AI Engineer, your role will be... ...core responsibility will be designing, developing, and fine-tuning the AI models that underpin... .... You will collaborate closely with our software engineering team, product managers, and...
Senior
Full time
Work at office
Remote work
Hita Ai Inc.
Lakewood, CO
11 hours ago
DevOps Engineer - Senior
$98.5k - $206.8k
...Intelligence Agency (NGA).Lead the design and implementation of CI/CD and DevSecOps solutions that enable secure, scalable, and resilient software delivery.Drive automation, platform engineering, and cloud modernization efforts supporting critical national security missions....
Senior
Contract work
Work experience placement
Flexible hours
CACI International
Denver, CO
3 days ago
Senior Software Engineer: Integrations Lead
$160k - $200k
...alarms, and robots across enterprise locations.We’re seeking a Senior Software Engineer: Integrations Lead to own the integrations that make... ...handlers designed for large-scale enterprise event ingestion.Develop outbound layers to orchestrate automated responses, such as...
Senior
Flexible hours
Cobalt Robotics
Denver, CO
1 day ago
Senior Full Stack AI Engineer
...office)Reports to: CEOThe roleWe're hiring a senior full-stack engineer to build the next... ...haves6+ years of professional full-stack software engineering experience, with demonstrated... ...pull request within the first two weeks.Develop a working mental model of the codebase across...
Senior
Work at office
Ombud
Denver, CO
3 days ago
Senior & Lead Transmission Line Engineers
$73.45k - $132.78k
We are seeking Senior & Lead Transmission Line Engineers (multiple positions) who will work... ...; and construction work packages.Develop project scopes, budgets, and proposalsAbility... ...POLE.Experience with foundation analysis software such as LPILE or FAD Tools.Microsoft Office...
Senior
Full time
Work at office
Remote work
Leidos
Denver, CO
2 days ago
Senior Application Developer
$75.2k - $158.1k
Job Title: Senior Application DeveloperJob Category: Information TechnologyTime Type: Full... .... Set the technical bar for a team of developers working across cloud-native... ...Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline...
Senior
Contract work
Work experience placement
Flexible hours
CACI International
Denver, CO
3 days ago
Senior Java Full Stack Developer
...Job Title: Senior Java Full Stack Developer Location - Denver, CO Onsite FTE Job Summary We are seeking an experienced Senior Java Full Stack Developer with expertise in Java, Spring Boot, Microservices, AWS, Oracle, Kafka, and Generative AI...
Senior
Full time
Acestack
Denver, CO
1 day ago
Senior Java Softwareentwickler (m/w/d)
$90.3k - $189.6k
Job Title: Senior Java DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum... ...guidance to junior and mid-level developers, fostering their professional... ...Architecture and Design: Strong understanding of software architecture principles, ability to design...
Senior
Contract work
Work experience placement
Flexible hours
CACI International
Denver, CO
3 days ago
Senior Angular Developer (Denver-Area)
$104k - $151k
...Job : Senior Angular Developer (Aurora, CO) Type : Full-time, W-2, onsite, temporary-to-hire role DoD Clearance : Top Secret or above Duration : 6 months minimum, with the possibility of extending contract or becoming permanent employee Want to work on...
Senior
Permanent employment
Full time
Contract work
Temporary work
Live in
Local area
Immediate start
Remote work
Flexible hours
Rocket Communications
Aurora, CO
11 hours ago
Senior Staff Software Engineer, Money Group
$189k - $236k
...assessed during the interview process.About the RoleWe're hiring a Senior Staff Engineer to serve as a Technical Lead across multiple... ...high-performing teams.Here's what we're looking for:10+ years of software engineering experience (successful applicants typically meet or...
Senior
Full time
Temporary work
Work at office
Local area
Remote work
Shift work
2 days per week
3 days per week
Gusto
Denver, CO
1 day ago
Senior Staff Software Systems Engineer, Cybersecurity and Compliance
...3).Please review the job details below.Position SummaryThe Senior Staff Software Systems Engineer - Cybersecurity & Compliance serves as a senior... ..., identify compliance gaps, and guide engineering teams in developing practical, sustainable remediation strategies.Support...
Senior
Full time
Maxar Technologies
Westminster, CO
2 days ago
Senior Mainframe Software Engineer (Hogan API, Java, Spring Boot, DevOps)
$119.77k - $140.9k
...across the organization. The candidate takes responsibility of the software artifacts produced adhering to U.S. Bank standards in order to... ...code that is easily testable, easily understood by other developers and accounts for edge cases and errors.Consistently considers...
Senior
Full time
Work at office
Local area
Remote work
Flexible hours
3 days per week
US Bank
Englewood, CO
2 days ago
Senior Principal Software Engineer
$143k - $193.05k
...The Infrastructure Modernization business unit is seeking a Senior Principal Software Engineer to serve as a visionary and hands-on technical... ...resilient automation platforms that support dynamic workloads Developing modern, secure APIs to improve integration with enterprise...
Senior
Remote work
Worldwide
Rocket Software
Denver, CO
11 hours ago
Senior Full Stack Software Developer
$139.6k - $200k
...Senior Full Stack Software Developer Join our mission to transform our nation's healthcare system as a Senior Full-stack Software Developer. In this role you will assist in leading projects from design to delivery. Partner with product managers and designers to define...
Senior
Local area
Flexible hours
Judi Health
Denver, CO
4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Developer. Be the first to apply!