Senior Front-End Software Engineer (TS/SCI)

Company: Vantor
Location: Herndon
Posted on: March 23, 2026

Job Description:

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what’s happening now and shape what’s coming next. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. To be eligible for this position, you must be a U.S. Citizen. This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. This position requires an active U.S. Government Security Clearance at the TS/SCI level. Vantor is seeking a Senior Front-end Software Developer to support the development and integration of various intelligence capabilities into a test and operational environment. You will be a member of a project team supporting a user base with a mission to solve unique and challenging problems in support of national security. Your work will support the development of a GIS user interface to ensure that it meets the requirements of our users. You will work with a team of other front-end and back-end software developers and engineers, DevSecOps engineers, Systems Engineers, and GIS experts to build the user interface components supporting the Safehouse development team. This role will focus on implementing UI/UX designs and other front-end components ensuring that the user experience is intuitive and effective for operational users. A background in building intelligence community operational-level front-end solutions is a plus. Responsibilities : Develop and implement user interfaces for web-based GIS applications, ensuring a seamless and engaging analyst user experience. Ensure that newly developed components and features adhere to our design systems and guidelines to ensure consistency across applications. Thoroughly test and review code and make sure it meets acceptance criteria. Minimum Qualifications : Must have a current/active TS/SCI clearance and be willing to take and pass a CI polygraph. Position is onsite; the candidate must be willing to work in the Herndon, VA or Westminster, CO office up to 5 days a week as needed. Bachelor’s degree in computer science or software engineering, or a related discipline; equivalent experience may be substituted for a degree. 7 years of relevant software development experience to include strong proficiency in JavaScript and developing with modern JavaScript frameworks (e.g. VUE, REACT, Angular). Experience working in an agile development environment using issue tracking software (e.g. Jira). Proficient understanding of code versioning tools (e.g. Git). Experience with software peer review processes as both a contributor and a reviewer. Capable of working effectively with a geographically distributed development team. Experience with CI/CD pipeline integration and deployment. Experience working with geospatial data, including multiple coordinate systems, formats, and map projections. Ability to collaborate effectively with cross-functional teams. Strong communication skills to articulate design concepts and decisions. Preferred Qualifications : Experience leading in an agile development environment as a product owner or scrum master Proficient in design tools such as Adobe Creative Suite, Sketch, Figma, or similar is a bonus as UI/UX design work is done in collaboration with frontend developers. Experience with automated end-to-end testing using tools such as Playwright, Selenium, or Cypress Familiarity with observability and monitoring tools such as Grafana or Loki Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate’s starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range. The base pay for this position within California, Colorado, Hawaii, New Jersey, the Washington, DC metropolitan area, and for all other states is: $165,000.00 - $200,000.00 Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: https://www.Vantor.com/careers The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. The date of posting can be found on Vantor's Career page at the top of each job posting. To apply, submit your application via Vantor's Career page. EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.

Keywords: Vantor, Washington DC , Senior Front-End Software Engineer (TS/SCI), IT / Software / Systems , Herndon, DC