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Salary
≈ $122k – $222k per year (Estimated)
Location
In office (Alexandria)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Oct 12, 2026.

Overview
Company
Impact
Profile match
Derex Technologies is a United States IT consulting and staffing firm that places contract and full-time technology specialists with corporate and public sector clients. Its engagements cover Microsoft Power Platform, Pega and Salesforce development, database administration, cloud and full-stack engineering, security operations and agile delivery roles. The company is headquartered in Chicago, Illinois, United States.

Derex Technologies Inc specializes in providing IT consulting, staffing solutions and software services. Globally headquartered in Harrison New Jersey since 1996 Derex delivers the highest quality technology professionals and an array of customized IT talent solutions designed to improve productivity and drive results to global clients throughout North America.

With over two decades of unparalleled experience, Derex provides supports to its clientele, across such industries as Systems Integration, Banking and Finance, Telecommunications, Pharmaceutical and Life Sciences, Energy, Healthcare, Technology, Transportation, and local and federal Government agencies.

Position: Sr. Web Backend Developer (813554)

Location : 2401 Mill Road, Alexandria, VA 22314

Interview : In Person

Job : Onsite

Client is currently executing two strategic digital modernization initiatives: the Web Modernization Project and the SmarTrip Mobile App 2.0 Project. Both projects are actively underway and are critical to enhancing the customer experience across WMATA's digital channels. The Web Modernization Project involves the complete redevelopment of the front-end experience for wmata.comand smartrip.wmata.com, replacing the existing platform that was last significantly refreshed in 2016. While a separate vendor is responsible for the website front-end implementation, WMATA requires resources to develop, integrate, test, and deploy the supporting SmarTrip backend services and APIs necessary to enable the new website functionality. The modernized platform will continue to serve as WMATA's primary digital channel fortransit information, customer self-service capabilities, and SmarTrip account managementThe SmarTrip Mobile App 2.0 Project focuses on enhancing the existing iOS and Android SmarTrip Mobile application by introducing new features and improvements designed to provide a more personalized, intuitive, anduser-friendly customer experience. WMATA requires support for application integration, development, configuration, testing, deployment, and production implementation of the SmarTrip backend components that support the mobile application and related services

Duties/Responsibilities

  • Analyze, design, develop, and implement technical designs.
  • Evaluate customer requirements and provide effective solutions.
  • Participate in problem resolution related to system design and review.
  • Recommend approval of functional and technical design documents and enactment of systems, program enhancements, and updates of Web applications.
  • Analyze and evaluate system changes to determine feasibility, alternative solutions, and backup procedures.
  • Work on General Orders Track Rights System and Site-Specific Work Plan application programs, upgrades, and enhancements to existing systems, and ensure systems are compliant with approved standards.
  • Successfully complete mandatory WMATA security awareness training on an annual basis.
  • Review and assist with system hardening and vulnerability remediation.
  • Participate in mandatory peer code reviews as part of the code commitment process to ensure that secure coding practices are being followed before code is merged.

    Bachelor’s degree in management information systems, Computer Science, Mathematics, Finance,Business or Public Administration, or in related discipline.

Regards,

Manoj Goud

Derex Technologies INC

Contact :973-834-5005 Ext 206

All your information will be kept confidential according to EEO guidelines.

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