Web Software Developer

Unissant•Washington, VA

2d•$113 - $138

About The Position

Unissant, Inc. is seeking a Web Software Developer to support a newly awarded program for a federal health agency. The role develops and maintains accessible web application interfaces and supporting components for agency customers and business users. The ideal candidate has practical delivery experience, sound judgment, and a collaborative approach to maintaining Federal business applications while improving technical capability. The position supports approved web pages, application features, reusable components, and backend integrations; accessible and responsive interfaces; testing and troubleshooting; source code and configuration quality; controlled deployments; release documentation; user feedback; and ongoing site maintenance. The developer also supports transition knowledge transfer, maintains technical and process documentation, coordinates work with program leadership, Government stakeholders, and related teams, and uses Government-approved tools and authorized environments for program data. On-site support in the Bethesda, Maryland area may be directed. The work is mainly in a routine office environment. Candidates must pass pre-employment screening and hold or be eligible for a Public Trust Moderate (Tier 2) background investigation, along with applicable federal suitability, badging, and system-access requirements.

Requirements

Minimum 7 years of experience developing and maintaining web application interfaces using HTML, CSS, and JavaScript or an assigned framework.
Ability to integrate web interfaces with backend services and handle data validation and error states.
Understanding of responsive design, browser compatibility, and accessible interaction patterns.
Experience debugging browser behavior and application performance issues.
Experience with version control, peer review, automated testing, and secure web development.
Ability to collaborate with content owners, designers, analysts, and backend engineers.
Ability to document work clearly, protect sensitive program information, and collaborate across Government and contractor teams.
Ability to meet federal suitability and access requirements and provide on-site support in the Bethesda, Maryland area as directed.
Must hold or be eligible for a Public Trust Moderate (Tier 2) background investigation and meet applicable federal suitability, badging, and system-access requirements.
Clear verbal and written communication skills, including the ability to coordinate professionally across Government, prime contractor, and subcontractor teams.
Ability to explain role-specific findings, document decisions and procedures, and communicate risks and recommended actions to the appropriate audience.

Nice To Haves

Experience with Drupal-based sites or the assigned Java/.NET web environment.
Federal Section 508 remediation and accessible form development experience.
Experience with reusable components, automated builds, and approved AI-assisted coding with human review.
Experience supporting a Federal IT services environment, preferably within a federal health agency or comparable federal IT environment.
Experience transferring knowledge from an incumbent team and maintaining reliable services during transition.
A degree or relevant coursework in computer science, information systems, engineering, or a related discipline.
Relevant web development, CMS, or accessibility credentials.

Responsibilities

Implement approved web pages, application features, reusable components, and integrations with backend services.
Translate requirements and design guidance into responsive interfaces that work across supported browsers and devices.
Apply accessible HTML structure, keyboard behavior, form validation, and other Section 508 design practices.
Develop and maintain unit and interface tests, and support regression, browser, and accessibility testing.
Troubleshoot display, behavior, performance, and data integration issues with analysts and engineers.
Maintain source code and configuration under review and address security and code-quality findings.
Support controlled deployments, release documentation, user feedback, and ongoing maintenance of assigned sites.
Support transition knowledge transfer and maintain current technical or process documentation for assigned responsibilities.
Coordinate assigned work with program leadership, Government stakeholders, and related teams; report blockers and dependencies promptly.
Use Government-approved tools and handle program data within authorized environments; validate AI-assisted output before it informs delivery decisions.