> Markdown version of [/jobs/ext/2495671-front-end-software-engineer-4](https://www.wearedevelopers.com/jobs/ext/2495671-front-end-software-engineer-4). 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 4 - **Company:** Base-2 Solutions, LLC - **Location:** Bethesda, MD, United States (Remote available) - **Experience:** Experienced - **Salary:** $10,000.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Agile Methodology, Unit Testing, Cascading Style Sheets (CSS), Data Stores, Software Debugging, Elasticsearch, JSON, Python (Programming Language), NoSQL, Performance Tuning, Software Engineering, Virtualization Technology, Web Applications, ReactJS, Backend, AngularJS, Front End Software Development, Docker, Web Api - **Published:** August 31, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9130089/front-end-software-engineer-4 ## About the Role * Active Top Secret with ability to obtain a TS/SCI with CI Polygraph. * Bachelor's degree with a minimum of ten years of experience in the category field. * Experience with modern front-end libraries such as ReactJS and Angular, including a minimum of 2 years of professional experience. * Strong proficiency in HTML, CSS, and JavaScript. * Solid understanding of HTTP web requests for fetching JSON data. * Excellent verbal and written communication skills and the ability to write well-documented code. * Demonstrated ability to work in a dynamic and challenging environment. * Solid understanding of the software development life cycle while working within an Agile framework., * Genuine passion for creating great user experiences. * Experience writing front-end unit tests. * Experience writing backend web API services. * Experience coding in other languages such as Python. * Familiarity with NoSQL datastores such as Elasticsearch. * Familiarity with performance optimization techniques. * Up-to-date knowledge of emerging front-end technologies. Required Education and Experience Equivalency * Bachelors' Degree with 10 years of experience. * Masters' Degree with 10 years of experience. * PhD with 10 years of experience., * Active Top Secret with ability to obtain a TS/SCI with CI Polygraph. ## Description Support the DOMEX Technology Platform as a Front-End Software Engineer 4 developing high-quality web applications for a DoD program using a modern technology stack. Most tasks are conducted on-site at the client location in Bethesda, MD. The source body also states that occasional remote work may be available depending on client requirements and deliverables., * Develop and maintain web applications using ReactJS or Angular frameworks. * Code, test, and debug new and existing web applications. * Implement and refine user interfaces. * Conduct thorough unit testing using automated tooling. * Collaborate with internal and external team members to ensure optimal performance and usability. * Peer review code written by fellow team members. * Utilize virtualization technologies such as Docker and Podman. ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. Grogg](https://www.wearedevelopers.com/videos/1806-nolojs-avoiding-javascript-cruft-with-html-and-css-aaron-t-grogg) - [Microfrontends at Scale](https://www.wearedevelopers.com/videos/236-microfrontends-at-scale) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)