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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Developer III - **Company:** Expansia US LLC - **Location:** Dayton, OH, United States (Remote available) - **Experience:** Experienced - **Salary:** $122,032.0 - $188,436.0 - **Contract:** Permanent contract - **Skills:** Query Performance, HTML, JavaScript (Programming Language), PHP (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, ASP.NET MVC Framework, Unit Testing, LAMP (Software Bundle), Cascading Style Sheets (CSS), Cloud Computing, Relational Databases, Software Design Patterns, Language Integrated Query, Google Maps, Laravel, Object-Oriented Software Development, Performance Tuning, Software Engineering, Subversion, Systems Integration, Web Applications, Web Services, ReactJS, Boot Strap, Code Restructuring, Software Version Control, Web Api - **Published:** October 3, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9214863/full-stack-developer-iii ## About the Role Clearance: Active TS/SCI Education and Years of Experience: Bachelor's degree or equivalent experience, with 5+ years of experience or a Master's degree with 3+ years of experience. * Strong experience in full-stack development, including PHP, JavaScript, and relational databases * Proven ability to develop solutions for complex technical challenges independently PREFERRED ADDITIONAL QUALIFICATIONS * Experience with frameworks and libraries such as Laravel, ReactJS, and Bootstrap3 * Knowledge of performance tuning, usability, testing, and automation * Familiarity with cloud technologies and scalable web application architecture ## Description As a Full-Stack Developer III, you will design, develop, and maintain web services and applications in a LEMP Stack environment (Linux, Nginx, MySQL, PostgreSQL, and PHP). You will gather and document requirements, implement new features, and improve system functionality while ensuring compliance with coding, security, and performance standards. Your role includes troubleshooting technical issues, optimizing system performance, and collaborating with stakeholders to develop innovative solutions. You will work with technologies such as ASP.NET MVC, Web API, LINQ, OOP, Design Patterns, HTML, CSS, JavaScript, Laravel, ReactJS, Bootstrap3, and Google Maps while applying best practices in agile software development., * Develop web services and APIs for system integration * Gather and document business requirements from clients and internal teams * Design, implement, and enhance applications using LEMP Stack technologies * Maintain and improve software functionality while ensuring coding, security, and compliance standards * Collaborate with stakeholders, departments, and customers to resolve development and implementation issues * Troubleshoot and resolve technical problems in a timely manner * Work with ASP.NET MVC, Web API, LINQ, and OOP to develop scalable applications * Develop front-end features using HTML, CSS, JavaScript, and frameworks like ReactJS and Bootstrap3 * Maintain version control using SVN and apply agile development methodologies * Write unit tests, refactor code, and optimize query performance for relational databases * Support and document internal tools, software development processes, and best practices * Provide technical support to operational strategies aligned within your program and initiatives that optimize processes, enhance productivity, and ensure quality across all program functions * Ensure 100% of planned hours are worked and recorded * Identify and forward to your leadership any opportunities that could lead to growth within your work area * Participate in growth efforts as requested * Ensure all contractual deliverables are met/exceeded to the customer's satisfaction * Complete personal PDP and attend staff meetings and Storytime (with camera on) * Build productive and positive professional relationships with clients within your program * Execute all contract requirements as assigned in accordance with the contract-specific LCAT and requirements * Perform other related duties as assigned ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Web APIs you might not know about](https://www.wearedevelopers.com/videos/281-web-apis-you-might-not-know-about) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Project Fugu: Extending the web](https://www.wearedevelopers.com/videos/832-project-fugu-extending-the-web) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) ## 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) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development)