> Markdown version of [/jobs/ext/278164-junior-application-developer](https://www.wearedevelopers.com/jobs/ext/278164-junior-application-developer). 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). --- # Junior Application Developer - **Company:** GUNNER LLC - **Location:** Stamford, CT, United States - **Experience:** Starter - **Salary:** $75,000.0 - $85,000.0 - **Contract:** Permanent contract - **Skills:** PHP (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Databases, Relational Databases, Github, PostgreSQL, MySQL, Performance Tuning, Web Applications, WordPress, Cloud Platform System, ReactJS, Git, Front End Software Development - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=a455a837391ee551 ## About the Role What do we require from you? * Experience building web applications using React.js for modern, responsive front-end development. * Strong knowledge of PHP, including building and maintaining custom PHP applications. * Experience developing custom WordPress themes and plugins, including extending WordPress functionality beyond standard configurations. * Proficiency working with relational databases including MySQL and PostgreSQL (schema design, queries, and performance optimization). * Familiarity with version control using Git and maintaining active project repositories on GitHub. * Ability to write clean, maintainable, and well-documented code following modern development best practices. * Exposure to cloud-based infrastructure, particularly within the AWS ecosystem. * Familiarity with core AWS services such as EC2, S3, WAF, and RDS. * Understanding of deploying, maintaining, and troubleshooting applications in a cloud hosted environment.Ability to collaborate effectively with the Gunner team. ## Description As a Junior Application Developer at Gunner you will contribute to the development, maintenance, and organization of modern web applications that support business operations and enhance the customer experience. Working closely with leadership, you will help build scalable and reliable solutions in a collaborative and fast-paced environment. What will you do? * Develop and maintain web applications using React.js, PHP, and faWordPress. * Build and enhance backend services and APIs to support front-end functionality. * Design, query, and optimize databases using MySQL and PostgreSQL. * Participate in deploying and maintaining applications in a fully AWS-based cloud environment. * Write clean, maintainable, and well-documented code following modern development best practices. * Troubleshoot bugs, performance issues, and production incidents. * Collaborate with cross-functional teams to translate business requirements into technical solutions. Contribute to continuous improvement of development workflows, testing practices, and system performance. ## 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) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Web development best practices in 2021](https://www.wearedevelopers.com/videos/280-web-development-best-practices-in-2021) - [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) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers)