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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Developer - **Company:** By Light Professional IT Services - **Location:** United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), Microsoft Windows, Agile Methodology, Amazon Web Services, Advanced Message Queuing Protocol, Business Logic, User Authentication, Unit Testing, Microsoft Azure, Cloud Computing, Databases, Continuous Integration, Daemon Tools, Linux, Web Development, Github, JQuery, Kernel-Based Virtual Machine, PostgreSQL, MySQL, Node.Js, Message Oriented Middleware, Responsive Web Design, Software Engineering, System Testing, Systems Integration, Management of Software Versions, Google Cloud, ReactJS, Backend, Git, Event Driven Architecture, Containerization, Gitlab-ci, Infrastructure Automation Frameworks, Bitbucket, Restful APIs, Terraform, Software Version Control, Serverless Computing, Docker, Jenkins, Microservices - **Published:** June 12, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8973717/senior-full-stack-developer ## About the Role * Bachelor's degree in a computer-related field and 3+ years of web development experience, or 6+ years of equivalent professional experience. * 8570 IAT Level II certification or ability to obtain certification within 6 months * Strong full-stack development background, including: + Proficiency in one or more of the following: Node.js, React, jQuery/JavaScript, PostgreSQL or MySQL, AMQP. + Expertise with Git-based source control (Git, Bitbucket). + Experience developing system services and daemons. + Understanding of Linux virtualization concepts (KVM). + Experience with Node.js frameworks such as Express, OpenAuth, and Socket.io. + Familiarity with AMQP or similar message-oriented middleware. + Working knowledge of networking, Linux, Windows, testing practices, and Agile SDLC. * Experience with cyber ranges, cyber training platforms, or simulation environments. * Understanding of orchestrated training events, exercise lifecycle, and multi-vendor tool integration. * Familiarity with infrastructure automation (Terraform preferred). * Ability to operate across complex, multi-vendor, hybrid environments (RCS/ECS/cloud). Preferred Experience/Qualifications * Containerization experience (Docker, image optimization). * CI/CD pipeline development (GitHub Actions, GitLab CI, Jenkins). * Cloud platform experience (AWS, Azure, GCP). * Knowledge of microservices and serverless architectures. * Strong REST API design and versioning practices. * Authentication and authorization implementation. * Experience with background processing, queues, and event-driven architectures. * Ability to design maintainable, modular business logic. Special Requirements/Security Clearance * DoD Top Secret security clearance (Or the ability to obtain one) * Up to 10% travel ## Description By Light is seeking a highly skilled Senior Full Stack Developer to join a software development and network engineering team responsible for designing, integrating, producing, testing, and deploying cyber range environments worldwide. This role operates with minimal supervision and spans requirements analysis, architecture, coding, testing, validation, and research in support of advanced cyber training systems., * Develop and maintain a modern, responsive web interface. * Build backend scoring services, databases, and automated scoring agents for Windows and Linux. * Conduct system testing within integrated cyber range environments. * Create and maintain administrative, technical, and end-user documentation. * Collaborate with the RangeOS development team to ensure seamless integration with versioned cyber ranges. Analysis and Design * Contribute to solution designs that align with requirements and system constraints. * Estimate effort, complexity, and timelines for assigned tasks. Coding * Implement clean, efficient, and maintainable code using modern programming practices. * Select optimal algorithms and approaches to solve technical problems. * Apply sound logic and design principles to feature development. * Follow established coding conventions and standards. Documentation * Internal: Document code structures, logic flows, and module behavior. * Process: Produce clear technical documentation for developers, engineers, and stakeholders. * External: Develop customer-facing documentation as required. * Demonstrate strong written, verbal, and presentation skills. Testing * Perform unit testing to validate functionality. * Support integration and validation testing across complex system environments. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Branch your database like your code: How schema changes and pull requests go hand in hand](https://www.wearedevelopers.com/videos/350-branch-your-database-like-your-code-how-schema-changes-and-pull-requests-go-hand-in-hand) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)