Web Application Development Jobs in Denver, CO (NOW HIRING)

AtkinsRéalis is seeking a Web Application Developer to join our Technology Solutions team. This role will support a portfolio of existing FDOT District 2 web applications, SharePoint solutions, Power Apps, Power Automate workflows, and related production support needs. Your role Support the Technology Solutions team in maintaining, troubleshooting, and enhancing existing FDOT District 2 public-facing, internal, and client-facing applications and business systems. Provide application support across traditional .NET web applications, SharePoint Online sites and lists, Power Apps, Power Automate flows, Microsoft Forms, and Microsoft 365-based business processes. Assist with developing web applications using C#, ASP.NET MVC, .NET, SQL Server, and Entity Framework. Work with existing application codebases to implement new features, resolve defects, and improve application functionality, usability, and maintainability. Support inherited and legacy systems by learning existing configurations, documenting current behavior, fulfilling enhancement requests, and minimizing disruption to production users. Develop and maintain database queries, application data models, and integrations using SQL Server, Entity Framework, and LINQ. Create, maintain, and troubleshoot SharePoint lists, document libraries, permissions, views, customized forms, and related Microsoft 365 data sources used by FDOT business applications. Develop, maintain, and troubleshoot Power Apps and Power Automate flows, including connectors, triggers, run-only permissions, app and flow ownership, error handling, notifications, and SharePoint-backed workflows. Support front-end development and maintenance using HTML, CSS, JavaScript, Bootstrap, and responsive web design practices. Use Visual Studio to develop, debug, test, and maintain web applications. Use Git-based source control to clone repositories, create branches, commit changes, merge updates, resolve basic conflicts, and participate in pull request workflows. Assist with deploying, configuring, and troubleshooting web applications hosted in Microsoft IIS and Windows Server environments. Help diagnose technical issues across application, web server, database, and browser layers. Respond to production support requests, triage defects, investigate root causes, coordinate fixes, document resolutions, and communicate status to internal project leaders and FDOT stakeholders. Coordinate with FDOT Office of Information Technology, SharePoint administrators, Power Platform administrators, and project stakeholders when access, environment, security, deployment, or tenant-specific issues require client-side support. Collaborate with developers, analysts, project managers, FDOT staff, and other technical team members to understand requirements, support existing processes, and deliver practical solutions across web, SharePoint, and Power Platform environments. Prepare and maintain documentation for application features, SharePoint and Power Platform configurations, data sources, deployment processes, permissions, inventory of flows and apps, issue resolutions, and development procedures. Follow team standards for coding, testing, source control, security, accessibility, documentation, and application support.

Bachelor’s degree in Computer Science, Software Engineering, Information Technology, Information Systems, Web Development, Data Science, or a related technical field; or equivalent practical experience developing, maintaining, or supporting web applications, SharePoint solutions, Power Platform solutions, or related business systems. Prefer 5-10 years of professional experience. Experience developing, maintaining, or troubleshooting web applications through coursework, internships, personal projects, or professional experience. Experience or familiarity with C#, ASP.NET MVC, .NET, Visual Studio, SQL Server, and Entity Framework or Entity Framework Core is preferred. Familiarity with front-end web technologies, including HTML, CSS, JavaScript, Bootstrap, and responsive web design. Basic experience with Git and source-control repository workflows, including branching, committing, merging, and pull requests. Exposure to IIS, Windows Server, application deployments, or web server configuration is preferred. Experience or familiarity with SharePoint Online, Microsoft Lists, Power Apps, Power Automate, Microsoft Forms, Microsoft 365 connectors, and SharePoint-backed business workflows is preferred. Experience supporting production applications, troubleshooting user-reported issues, documenting fixes, and working with client IT teams or controlled government technology environments is preferred. Familiarity with Linux, Node.js, npm, PostgreSQL, REST APIs, or CI/CD practices is helpful but not required. Ability to understand and work within an existing codebase while making careful, well-documented changes. Basic understanding of object-oriented programming, web application architecture, database-driven applications, and the software development lifecycle. Ability to troubleshoot issues across application, database, server, and browser layers. Ability to work in client-controlled environments where access, permissions, VPN, security, deployment, and system‑owner coordination may affect delivery. Familiarity with relational database concepts and the ability to write and understand basic SQL queries. Basic understanding of responsive design, browser compatibility, usability, and web accessibility practices. Strong analytical, problem‑solving, organizational, documentation, and communication skills. Detail‑oriented and comfortable collaborating with developers, analysts, project managers, and other technical professionals. Comfortable communicating with technical and non-technical stakeholders, asking clarifying questions, documenting decisions, and providing clear status updates. Ability to learn unfamiliar technologies and development environments and apply feedback constructively. Interest in application development, web technologies, digital transformation, automation, data, and emerging technologies.

Preferred 5-10 years of professional experience. Experience developing, maintaining, or troubleshooting web applications through coursework, internships, personal projects, or professional experience. Experience or familiarity with C#, ASP.NET MVC, .NET, Visual Studio, SQL Server, and Entity Framework or Entity Framework Core is preferred. Familiarity with front-end web technologies, including HTML, CSS, JavaScript, Bootstrap, and responsive web design. Basic experience with Git and source-control repository workflows, including branching, committing, merging, and pull requests. Exposure to IIS, Windows Server, application deployments, or web server configuration is preferred. Experience or familiarity with SharePoint Online, Microsoft Lists, Power Apps, Power Automate, Microsoft Forms, Microsoft 365 connectors, and SharePoint-backed business workflows is preferred. Experience supporting production applications, troubleshooting user-reported issues, documenting fixes, and working with client IT teams or controlled government technology environments is preferred. Familiarity with Linux, Node.js, npm, PostgreSQL, REST APIs, or CI/CD practices is helpful but not required.

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.

• 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
• voluntary benefits

You can review our comprehensive benefits page here.

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.

Expected compensation range is between $83k-$130k+ annually depending on skills, experience, and geographical location.

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. Created by the integration of long‑standing organizations dating back to 1911, AtkinsRéalis is a world‑class engineering services and nuclear company dedicated to engineering a better future for our planet and its people. We create sustainable solutions that connect people, data and technology to transform the world’s infrastructure and energy systems. We deploy global capabilities locally to our clients and deliver unique end‑to‑end services across the whole life cycle of an asset including consulting, advisory & environmental services, intelligent networks & cybersecurity, design & engineering, procurement, project & construction management, operations & maintenance, decommissioning and capital. The breadth and depth of our capabilities are delivered to clients in strategic sectors such as Engineering Services, Nuclear and Capital. News and information are available at Atkinsrealis or follow us on LinkedIn.

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.