• Software Engineer-Mid - Backend

    Guidehouse (Mclean, VA)
    …for a federal government client. This is an exciting opportunity for a seasoned developer to join a collaborative, Agile team that will be building the backend of ... develop, and maintain backend services for an enterprise-class, federal web application. + Deliver high-quality, pattern-based, modular, security-driven code and… more
    Guidehouse (11/12/25)
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  • Sr. Software Engineer

    Leidos (Alexandria, VA)
    …and implement modern, containerized applications in classified cloud environments, guiding junior engineers, and working directly with mission stakeholders to ensure ... as AWS GovCloud or C2S. + Guide and mentor junior and mid-level engineers, enforce code quality, and lead...experience. + Strong proficiency with the following technologies: + Web :HTML, CSS, JSON, Ajax, and REST APIs + Object-oriented… more
    Leidos (10/05/25)
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  • Mid-Level Software Engineer

    Leidos (Alexandria, VA)
    …development teams to build and maintain microservices, APIs, and web -based applications that support GEOINT data access, visualization, and dissemination. ... accreditation standards. + Participate in code reviews and mentor junior developers as needed. + Resolve various tasks as...relevant experience. + Proficiency with the following technologies: + Web : HTML, CSS, JSON, Ajax, and REST APIs +… more
    Leidos (10/05/25)
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  • Appian Solution Architect

    Guidehouse (Mclean, VA)
    …articulating value and risk mitigation strategies + Mentor developers and junior architects, fostering a culture of continuous learning and knowledge sharing ... proficiency with Appian SAIL, Process Modeler, Rules, and integration with REST/SOAP, web services, and cloud platforms, etc + Current Appian Lead Developer more
    Guidehouse (11/07/25)
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  • Lead Software Engineer

    System One (Reston, VA)
    Job Title: Lead Java Developer /Engineer Location: Reston, VA (Hybrid, one day per week onsite) Job Type: Full Time (12 month Contract to Hire) Salary: ... evaluation, software requirements management. 1) Prior experience with onboarding web services on to APIM platform (preferably IBM API...and software technologies and serves as a mentor for junior developers. + Works with stakeholders as well as… more
    System One (10/08/25)
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  • Software Engineer SME

    Leidos (Alexandria, VA)
    …cybersecurity, data governance, and open standards (OGC, NSG, etc.). + Mentor junior engineers, provide code reviews, and contribute to technical roadmap and ... relevant experience. + Proficient with the following technologies: + Web : HTML, CSS, JSON, Ajax, and REST APIs +...CSS, JSON, Ajax, and REST APIs + Object-oriented Programming:Python, Java , and JavaScript + Advanced Programming: Go + Front-end… more
    Leidos (10/05/25)
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