Sr. Full Stack Developer

Leidos; Bethesda (MD); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Paid Time Off

11 paid holidays

401(k) with company match

Flexible schedules

Discounted stock purchase plans

Technical upskilling

Education and training support

Paid parental leave

Job summary

Leidos in Bethesda, MD seeks a Senior Full Stack Developer to design, develop, test, and maintain mission-critical systems in a DevOps framework. You will work across Java, JavaScript, Python, Spring Boot, and Hibernate to deliver cloud-enabled tools for national security missions.

You will validate software with JUnit and Katalon, automate deployments with GitHub, Jenkins, Jira, and Confluence, and collaborate with Agile teams following SAFe practices. A TS/SCI clearance is required.

Qualifications

• Significant experience with Agile practices and software development lifecycles.
• Experience delivering software in DevOps toolchains and practices.
• Strong background in cloud platforms (AWS, Google Cloud, Azure) and cloud data services.

Responsibilities

• Full Stack development using Java, JavaScript, Python, Spring Boot, Hibernate.
• Develop, validate, and test software with JUnit and Katalon.
• Integrate automated deployment leveraging GitHub, Jira, Confluence, and Jenkins.
• Develop in cloud environments and coordinate infrastructure needs.
• Support Agile SAFe practices with Product Owners and Scrum Masters.

Skills

Java

Angular

Spring

Hibernate

Python

JavaScript

SAFe

DevOps

Education

Bachelor's degree

Master's degree

Tools

Jira

Confluence

GitHub

Jenkins

Unix Bash

Job description

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.

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.

Benefits

• 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

Pay Range

Pay Range $107,900.00 - $195,050.00

Background

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

Securing Your Data

Leidos will never ask you to provide payment‑related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment‑related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.

Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.