> Markdown version of [/jobs/ext/1974950-sr-software-developer](https://www.wearedevelopers.com/jobs/ext/1974950-sr-software-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). --- # Sr. Software Developer - **Company:** Leidos, Inc. - **Location:** Gaithersburg, MD, United States - **Experience:** Expert - **Salary:** $107,900.0 - $195,050.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, Application Performance Management, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Software Quality, Code Review, Software Debugging, Software Design Patterns, Elasticsearch, Python (Programming Language), Message Broker, NoSQL, Object-Oriented Software Development, Scrum Methodology, RabbitMQ, Redis, Ansible, Secure Coding, Software Engineering, Web Applications, Enterprise Software Applications, Spring Cloud, ReactJS, Reliability of Systems, Git, Vue.js, Containerization, AngularJS, Gitlab-ci, Infrastructure Automation Frameworks, Information Technology, Deployment Automation, Apache Kafka, Front End Software Development, Restful APIs, Terraform, Software Version Control, Devsecops, Docker, Jenkins, Microservices - **Published:** August 7, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9081503/sr-software-developer ## 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 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience . * 8+ years of professional software development experience. * Strong proficiency in one or more object-oriented programming languages such as: + Java + C# + Python + C++ * Experience developing web-based applications and enterprise software solutions. * Experience designing and consuming REST APIs. * Experience working with relational and/or NoSQL databases. * Strong understanding of object-oriented design principles and software design patterns. * Experience using Git or other distributed version control systems. * Experience working within Agile Scrum or SAFe development environments. * Excellent analytical, debugging, and problem-solving skills. * Strong written and verbal communication skills. Preferred Qualifications: * Experience developing cloud-native applications in AWS, Azure, or other cloud platforms. * Experience with containerization technologies such as Docker and Kubernetes. * Experience building microservices architectures. * Familiarity with DevSecOps practices and CI/CD tools including Jenkins, GitLab CI, or Azure DevOps. * Experience with Infrastructure as Code tools such as Terraform or Ansible. * Knowledge of message brokers such as Kafka or RabbitMQ. * Experience with front-end frameworks such as React, Angular, or Vue.js. * Familiarity with Elasticsearch, Redis, or other enterprise technologies. * Experience with secure software development lifecycle (SSDLC) practices. * Security+ certification or other DoD 8570/8140 compliant certification. ## Description * Design, develop, test, deploy, and maintain enterprise software applications using modern development practices. * Collaborate with Product Owners, Scrum Masters, architects, and fellow developers to deliver high-quality software in Agile sprints. * Participate in sprint planning, backlog refinement, daily stand-ups, sprint reviews, and retrospectives. * Develop clean, maintainable, and well-documented code following secure coding standards and best practices. * Design and implement RESTful APIs, microservices, and distributed application architectures. * Perform code reviews and mentor junior developers to promote engineering excellence and knowledge sharing. * Troubleshoot complex application issues and perform root cause analysis to improve system reliability and performance. * Develop automated unit, integration, and end-to-end tests to ensure software quality. * Collaborate with DevSecOps teams to implement CI/CD pipelines and automated deployment processes. * Optimize application performance, scalability, and security across enterprise environments. * Participate in architecture discussions and contribute to technical roadmaps and modernization initiatives. * Support production deployments and resolve issues in mission-critical environments ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [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) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [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) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [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) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)