Senior Software Developer

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. The Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers' mission to defend against evolving threats around the world.

Your greatest work is ahead!

The National Security Sector (NSS) has a new and exciting opportunity for a Senior Software Developer in our Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. You will support a cutting-edge Cyber Program, providing IT user support, IT security, IT services, and developer support for mobile device analysis, collection, and exploitation engineering services to the Federal Agency. Join us and make a difference in National Security! This opportunity is in anticipation of a future contract award.

What you'll be doing:

• Design, develop, and maintain high-quality software solutions.
• Apply extensive experience in Agile environments, lead development efforts, implement best practices, and collaborate with cross-functional teams to deliver value-driven software increments.
• Utilize advanced technical expertise, leadership abilities, and a deep understanding of Agile principles to drive successful software development projects.
• Design, develop, and maintain software applications, modules, and components using appropriate programming languages, frameworks, and technologies, ensuring adherence to coding standards and best practices.
• Participate in Agile ceremonies such as sprint planning, daily stand-ups, and sprint reviews, collaborating with Agile teams to prioritize development tasks, estimate effort, and provide regular updates on progress.
• Provide technical leadership and mentorship to junior developers, guiding them in software design principles, coding techniques, and best practices.
• Conduct code reviews to ensure code quality, maintainability, and adherence to architectural guidelines. Implement automated testing and continuous integration practices to ensure software reliability and stability.
• Collaborate with product owners, business analysts, and stakeholders to understand project requirements, translate them into technical designs, and provide input on feasibility and implementation approaches.
• Document software designs, architectures, and implementation details. Share knowledge and best practices with team members through code reviews, technical presentations, and mentoring sessions.
• Identify and address technical challenges and issues throughout the development lifecycle, proposing innovative solutions and troubleshooting complex problems as they arise.
• Identify opportunities for performance optimization and scalability improvements in software applications, implementing optimizations to enhance system efficiency and responsiveness.
• Stay abreast of the latest trends, tools, and technologies in software development. Conduct research and experimentation with emerging technologies to drive innovation and improve development practices.

What does Leidos need from me?

• Current Top Secret security clearance, SCI eligibility, and able to pass a Polygraph and an FBI full scope field background investigation.
• Minimum of eight years of professional experience in software development roles, with significant experience in designing and building complex software solutions.
• Minimum of three years of experience working in Agile environments, preferably in roles involving leadership and collaboration within Agile teams.
• Experience with development in one or more scripting languages or methodologies (e.g., Go, Bash, JavaScript, etc.); designing working environments and/or programs within Linux-based operating systems (Ubuntu, RedHat, Debian, etc.) additional experience with User Interface / User Experience (UI/UX) development technologies, especially with JavaScript frameworks, such as React, Angular, or Vue Working knowledge of database query languages and mobile database design (e.g., SQLite).
• Experience with iOS and Android mobile development languages, including Java, Objective-C, or Swift.
• Experience leading collaborative Python development projects and familiarity with issue tracking software, such as Jira, as part of a software development team and experience with the git version control system.

Favorable if you have:

• Relevant certifications such as Certified Scrum Developer (CSD), Professional Scrum Developer (PSD), or similar certifications demonstrating proficiency in Agile software development practices are highly desirable.
• Superior communication skills: ability to effectively communicate complex concepts to both technical and non-technical audiences, and negotiate with stakeholders and internal teams.
• Proven ability to lead cross-functional teams, manage diverse stakeholders, and drive project execution within scope, budget, and timeline.

Original Posting:
March 25, 2025
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:
Pay Range $104,650.00 - $189,175.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.