Sr. Full Stack Developer

Leidos is seeking an experienced Senior Full Stack Developer to join our Intel Security Sector's Analysis Solutions Business Area in Bethesda, Maryland. Our talented team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management, delivering innovative technical solutions that support critical national security missions.

This is an excellent opportunity for an accomplished software developer to apply their expertise in full stack development, cloud technologies, and modern DevOps practices while collaborating with talented professionals to build and sustain mission-critical systems. You'll have the opportunity to work with cutting-edge technologies, contribute to innovative software solutions, and make a meaningful impact on programs supporting the Intelligence Community.

Located just outside Washington, D.C., Bethesda, Maryland, offers an ideal combination of exciting career opportunities and quality of life. With vibrant neighborhoods, highly regarded schools, outstanding restaurants and entertainment, beautiful parks, and convenient access to Washington, D.C., and the surrounding National Capital Region, Bethesda is a great place to advance your career while enjoying everything the area has to offer.

At Leidos, we recognize the value of our employees and offer a comprehensive, competitive benefits package, including Paid Time Off, 11 paid holidays, a 401(k) with a 6% company match and immediate vesting, flexible schedules, discounted stock purchase plans, technical upskilling, education and training support, paid parental leave, and much more.

Join Leidos and put your technical expertise to work supporting missions that make a difference in National Security!

Job Summary

We are seeking a skilled and experienced Senior Full Stack Developer to support the design, development, implementation, testing, operations, and maintenance of mission-critical systems, software, and cloud environments. In this role, you will provide technical support in developing and enhancing customer tools and applications that address complex mission requirements.

Working within a DevOps framework, the successful candidate will contribute to major project deliverables throughout the software development lifecycle, including scope definition and work estimation, architecture and design, coding, and unit testing.

This position offers the opportunity to leverage modern development frameworks, commercial cloud platforms, and automated deployment technologies while collaborating with cross-functional Agile teams to deliver reliable, innovative solutions for critical national security missions.

Primary Responsibilities

• Full Stack Software Development: Participate in software programming initiatives that support innovation and enhancement, utilizing Java, JavaScript, Python, Spring Boot, and Hibernate.
• Software Testing and Validation: Develop software system validation and testing methods using JUnit and Katalon.
• Integration and Automated Deployment: Develop and integrate custom software solutions that leverage automated deployment technologies, utilizing the Atlassian tool suite, including JIRA and Confluence, to track development activities.
• Cloud-Based Development: Develop, prototype, and deploy solutions within Commercial Cloud Solutions, leveraging infrastructure platform services to create innovative solutions that meet customers' technical needs.
• Infrastructure Analysis and Coordination: Analyze infrastructure requirements through proof-of-concept development, performance testing, and end-to-end testing, and effectively coordinate infrastructure needs driven by developed software to meet customer mission requirements.
• Agile Collaboration: Support the Agile software development lifecycle following Program SAFe practices, coordinating closely with team members, Product Owners, and Scrum Masters to ensure User Story alignment and implementation in accordance with customer use cases.
• DevOps and Configuration Management: Document and perform systems software development activities, including deploying build artifacts across different environments using GitFlow constructs and industry-leading DevOps tools such as GitHub, Jenkins, and Unix Bash scripting.

Clearance Requirement: To be considered, candidates must possess an active TS/SCI with polygraph security clearance.

Required Qualifications

• Significant experience with common Agile practices, service-oriented environments, and software development practices.
• Significant experience with Java, Angular, Spring, and C2S, as well as the software development lifecycle, including experience delivering software solutions within DevOps toolsets and practices.
• Direct experience utilizing software testing and performance tools, such as JUnit or Katalon, and scripting languages, including Python and Bash, within an Agile development environment.
• Significant experience developing solutions in commercial cloud platforms (e.g., AWS, Google Cloud, Azure) and leveraging cloud data services (e.g., S3, RDS, EFS).
• Significant experience utilizing version control systems and issue/problem tracking systems.
• Education and Experience: Bachelor's degree with 8+ years of prior relevant experience, or a Master's degree with 6 or more years of relevant experience.

Preferred Qualifications

• Experience with structured analysis and design methodologies.
• Experience working on the customer's systems.
• Understanding of the customer's system development policies.

At Leidos, the opportunities are boundless. We challenge our employees with meaningful assignments that encourage both professional and personal growth. We believe that investing in your career strengthens our ability to deliver innovative solutions for our customers.

Take the next step in your career with Leidos. Apply today!

#CABARESTON

#ASBA

#HALO

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

October 27, 2026

Pay Range:

Pay Range $107,900.00 - $195,050.00

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.