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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Developer - **Company:** ECS Limited - **Location:** Arlington, VA, United States - **Experience:** Experienced - **Salary:** $100,000.0 - $120,000.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Apache HTTP Server, Architectural Patterns, Microsoft Azure, Big Data, C Sharp (Programming Language), Cascading Style Sheets (CSS), Databases, Web Development, Django Web Framework, Github, Design of User Interfaces, Web Servers, JQuery, Python (Programming Language), Message Broker, MySQL, Node.Js, Scrum Methodology, Responsive Web Design, Server Administration, Software Deployment, SQL Databases, Systems Integration, Teradata SQL, TypeScript, WebSocket, Cloud Platform System, ReactJS, Istio, Flask (Web Framework), Backend, Data Strategy, AngularJS, Information Technology, Apache Kafka, Front End Software Development, Software Version Control, Serverless Computing, Databricks, Programming Languages, Microservices - **Published:** July 16, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9032920/full-stack-developer ## About the Role * Professional certification(s) in a related field of web development and/or front-end/back-end disciplines * Degree in Computer Science, Web Development, or relevant field * 3+ years of JavaScript development experience (client-side and server-side) * 5+ years of experience with full stack development * 5+ years of experience and skill writing coding languages (e.g. Python, JavaScript, SQL, C#) * Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, Typescript, jQuery) * Knowledge of front-end frameworks (e.g. Angular, React, Node.js) * Knowledge of multiple back-end languages (e.g. Python/C#) and backend frameworks (e.g. Flask, Django) * Familiarity with databases (e.g. MySQL, Teradata), web servers (e.g. Apache) and UI/UX design * Experience in designing and integrating different API architectures (e.g. REST, gRPC) * Server management and deployment for the relevant environments (e.g. Azure, AWS) * Knowledge of message brokers (e.g. Kafka, EventHub), version control (e.g. Azure DevOps, GitHub) and Websockets * Knowledge of architectural patterns (e.g. Monolith, Microservices, Serverless, Service Mesh) Desired Skills * Familiarity with Agile and/or Scrum * Knowledge or familiarity with Databricks * Experience with UI/UX design is desired ## Description ECS is seeking a Full Stack Developer to work with data scientists and analysts to rapidly design, implement, test, and deploy applications and cloud-based platforms capable to tackling complex analytical tasks using large datasets. This position works for the US Postal Services' Inspector General's Office (OIG) at our Arlington, VA office. Please Note: This position is contingent upon additional funding and requires a Public Trust background investigation. This entails an in-depth background check & either US Citizenship or Permanent Resident (Green Card) status. Responsibilities include: * Work with data scientists and analysts to rapidly design, implement, test, and deploy applications capable to tackling complex analytical tasks using large datasets * Communicate with end users, team lead, and team members to create and support new products and features * Communicate with product users to enhance or troubleshoot products * Design client-side and server-side architecture * Build the front-end of applications through appealing visual design * Write effective APIs * Build features and applications with a responsive design * Write technical documentation and support data governance strategy * Function in an Agile based team environment Note: This position requires working onsite 4 days a week at out USPS customer site in Arlington, VA. 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