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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mid-Level Software Engineer - **Company:** Leidos, Inc. - **Location:** Alexandria, VA, United States - **Experience:** Experienced - **Salary:** $87,100.0 - $157,450.0 - **Contract:** Permanent contract - **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), Microsoft Windows, Application Programming Interfaces (APIs), Ajax (Programming Language), Amazon Web Services, Software Applications, Application Performance Management, Confluence, JIRA, Automation of Tests, Microsoft Azure, Cascading Style Sheets (CSS), Cloud Computing, Cloud Engineering, Software Quality, Code Review, Continuous Integration, Relational Databases, Software Design Patterns, Linux, Django Web Framework, Elasticsearch, Geospatial Intelligence, JSON, JQuery, Python (Programming Language), PostgreSQL, Enterprise Messaging Systems, Microsoft SQL Server, MySQL, Cisco Nexus Switches, Node.Js, NoSQL, Object-Oriented Software Development, Scrum Methodology, Svelte, Ansible, Secure Coding, Software Engineering, Software Systems, SonarQube, Vault (Revision Control System), Data Logging, Cloud Platform System, Okta, ReactJS, Flask (Web Framework), Spring-boot, Backend, Git, Cloudformation, Vue.js, Event Driven Architecture, Containerization, AngularJS, Gitlab-ci, Kubernetes, Information Technology, Front End Software Development, Software Coding, Restful APIs, Terraform, Software Version Control, Devsecops, OpenSearch, Docker, Jenkins, Programming Languages - **Published:** October 16, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9244753/mid-level-software-engineer ## About the Role Active Top Secret/SCI with the ability to successfully pass a Polygraph examination., * US citizenship is required per contract. * Bachelor's degree in Computer Science, Software Engineering, or related field and 4-8 years of prior relevant experience or Master's with less than 2-6 years of prior relevant experience. Equivalent experience may be considered in lieu of degree. * Proficiency with the following technologies: o Web: HTML, CSS, JSON, Ajax, and REST APIs o Object-oriented Programming: Python, Java, or JavaScript o Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte o Cloud Development: AWS, Azure, or similar cloud platforms o Relational Database: MySQL, PostgreSQL, or SQL Server o Operating System: Windows, Linux o Version Control System: Git * Understanding of modern software design patterns and coding standards. * Experience architecting, developing, and delivering complex software systems into production. * Experience with CI/CD tools (GitLab CI, Jenkins) and agile collaboration tools (JIRA, Confluence). * Familiarity with cloud environments such as AWS (C2S or GovCloud) and containerization technologies (Docker, Kubernetes). * Understanding of secure coding practices and government system accreditation processes (e.g., RMF, STIGs). * Strong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques. Preferred Qualifications: * Experience supporting Intelligence Community (IC) mission systems. * Experience with geospatial, intelligence, or other mission-specific data and workflows. * Experience with AWS and cloud-native architectures. * Experience with Infrastructure-as-Code (Terraform, Ansible, CloudFormation). * Experience with GitLab CI/CD, Jenkins, SonarQube, Nexus, Vault, or Keycloak. * Experience with PostgreSQL, MySQL, SQL Server, OpenSearch/Elasticsearch, or similar technologies. * Experience with event-driven architectures and messaging technologies. * Experience with observability, monitoring, logging, and application performance management. #Chinook #NSBA ## Description You've built your software engineering foundation. Now it's time to take ownership of technology that truly matters. Leidos is seeking an accomplished Mid-Level Software Engineer to join the Chinook Program supporting an Intelligence Community (IC) customer and helping evolve an application supporting important national security objectives., As a Mid-Level Software Engineer, you'll have the opportunity to own meaningful features and software components from design through deployment. Independently you'll design, develop, integrate, test, and maintain software capabilities. You're expected to take ownership of assigned features and components while contributing to technical decisions, code quality, automation, and continuous improvement. You'll solve challenging technical problems, collaborate with talented engineers across disciplines, and contribute to modern cloud, DevSecOps, API, and application technologies., * Design, develop, integrate, test, deploy, and maintain a software application that supports our customer's GEOINT mission. * Translate functional and technical requirements into software solutions. * Independently implement moderately complex software features. * Develop maintainable, scalable, and secure application components. * Develop and consume RESTful APIs and backend services. * Work with relational and/or NoSQL databases. * Troubleshoot application defects, integration issues, and performance problems. * Perform root-cause analysis and implement corrective actions. * Develop unit, integration, and automated tests. * Participate in code reviews and establish high-quality coding practices. * Support CI/CD and DevSecOps processes. * Contribute to containerized application environments. * Participate in agile ceremonies, sprint planning, backlog refinement, demonstrations, and technical working sessions. * Collaborate with Test Engineering to ensure features meet acceptance criteria and quality expectations. * Support deployment, monitoring, and sustainment of the application. * Identify opportunities to improve application performance, reliability, maintainability, and security. * Provide technical guidance to junior engineers. * Maintain appropriate software and technical documentation.