> Markdown version of [/jobs/ext/3807387-front-end-software-engineer](https://www.wearedevelopers.com/jobs/ext/3807387-front-end-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Front-End Software Engineer - **Company:** Leidos, Inc. - **Location:** Montgomery Village, MD, United States - **Experience:** Experienced - **Salary:** $87,100.0 - $157,450.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Agile Methodology, Amazon Web Services, Application Integration Architecture, Application Performance Management, Build Automation, Cascading Style Sheets (CSS), Code Review, Continuous Integration, Data Visualization, Software Debugging, Geospatial Intelligence, Design of User Interfaces, Linux System Administration, Performance Tuning, Scrum Methodology, Software Prototyping, Software Deployment, Software Engineering, Software Systems, TypeScript, Web Applications, Web Application Frameworks, Cloud Platform System, ReactJS, Delivery Pipeline, Grafana, Software Application Programming, Backend, Gitlab, Git, AngularJS, Gitlab-ci, Information Technology, Figma, Front End Software Development, Restful APIs, Software Version Control, Devsecops, Docker - **Published:** October 17, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=6713a5d7dad48648 ## About the Role Active TS/SCI with the ability to successfully pass a Polygraph examination., * U.S. citizenship is required per contract. * Bachelor's degree in Computer Science, Software Engineering, or related field with 4-8 years of relevant experience, or Master's degree with 2-6 years of relevant experience. * Strong hands-on experience with JavaScript, HTML, and CSS. * Experience developing applications using a modern front-end framework such as React, Angular, or similar. * Experience integrating front-end applications with REST APIs and backend services. * Experience developing, debugging, and maintaining production web applications. * Experience with source control tools such as Git. * Experience working in Linux-based environments. * Ability to translate technical and user requirements into functional software solutions. * Strong troubleshooting and problem-solving skills. Preferred Qualifications * Experience with TypeScript. * Experience with CI/CD pipelines and automated front-end build/deployment workflows. * Experience with Docker, containers, or containerized application environments. * Experience with GitLab and GitLab CI/CD. * Experience with AWS or other cloud environments. * Experience with data visualization technologies such as Grafana or similar tools. * Familiarity with accessibility and usability best practices. * Experience working in Agile software development environments. * Experience developing applications supporting data-intensive or GEOINT mission workflows. * Familiarity with UI design/prototyping tools such as Figma is a plus. ## Description As a Front-End Software Engineer, you will design, develop, integrate, and maintain responsive web applications supporting complex mission workflows. You will work closely with backend engineers, product owners, and end users to translate mission requirements into reliable, intuitive, and production-ready front-end capabilities., * Front-End Development: Design, develop, test, and maintain responsive web applications using modern JavaScript frameworks such as React, Angular, or similar technologies. * Application Integration: Integrate front-end applications with REST APIs, backend services, and data sources. * Software Development: Develop reusable, maintainable, and scalable front-end components following modern software engineering practices. * User Interface Development: Translate requirements and user workflows into intuitive, functional interfaces for complex mission applications. * Performance Optimization: Troubleshoot and improve application performance, responsiveness, reliability, and scalability. * Testing & Debugging: Perform front-end testing, debugging, code reviews, and defect resolution throughout the software development lifecycle. * DevSecOps: Participate in CI/CD pipelines, source control, automated builds, and application deployment processes. * Cross-Functional Collaboration: Work closely with backend engineers, product owners, testers, and mission users to deliver integrated software capabilities. * Agile Development: Participate in Agile development activities including sprint planning, backlog refinement, demonstrations, and retrospectives.