Journeyman Full Stack Engineer

Leidos; St. Louis (MO); On-site; USD 70,000 - 126,000; Full time

Job summary

Leidos is seeking a Journeyman Full Stack Engineer to support aeronautical systems software in maintenance, development, integration, deployment, and sustainment. The role emphasizes design, development, and automated testing of software modules with peer reviews and documentation duties.

The position requires a BS in Information Systems/IT/CS or related field with 4+ years of experience (or a Master’s with 2+ years). Cloud, DevOps, AWS, and collaboration tools familiarity are expected.

Qualifications

• BS in Information Systems, Information Technology, Computer Science or closely related discipline and 4+ years of relevant experience, or master’s with 2+ years; or 4 years of experience in lieu of degree.
• Proficient in software development projects or services in a cloud/SOA/web-services or virtualization environment.
• Understanding of DevOps methodologies and workflow.
• Familiar with AWS services and cloud technologies.
• Familiar with system engineering documentation creation (VDDs, diagrams).

Responsibilities

• Design, develop, troubleshoot, and debug software programs for maintenance and enhancements.
• Perform peer reviews and unit testing; adapt to varying responsibilities.
• Analyze software requirements and develop software products in a maintenance setting.
• Identify software and hardware dependencies and capacities; create and maintain documentation.

Skills

Vue

NodeJS

PostgreSQL

DevOps

AWS

Education

BS in Information Systems / IT / CS

Master’s in related discipline

Tools

Git/GitLab

Jira

Confluence

RocketChat

Job description

Description

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment of aeronautical systems.

This role is responsible for adaptive, corrective, preventive and perfective maintenance of aeronautical systems software. This role uses best practices and patterns to perform design, development, and automated testing of software modules.

• This role involves software system development, including the design, development, troubleshooting, and debugging of software programs for software enhancements and maintenance.


• Participate in peer reviews and unit testing and must be adaptable to different responsibilities.


• Duties include software requirements analysis and development of software products in a maintenance setting.


• This role is responsible for identifying software and hardware dependencies and capacities.


• Creating and maintaining documentation is part of this role.

BASIC QUALIFICATIONS

• Requires a BS in Information Systems, Information Technology, Computer Science or closely related discipline and 4+ years of prior relevant experience or master’s with 2+ years of prior relevant experience; OR 4 years of experience in lieu of degree


• Proficient in software development projects or software integration projects in a service-oriented environment (Cloud, SOA, Web-Services) or virtualization environment.


• Understanding of DevOps methodologies and workflow


• Knowledge of the Architectural, SW Development and SW Sustainment Practices


• Familiar with Vue, NodeJS, PostgreSQL


• Familiar with Git/GitLab or other source code control tools


• Familiar with Amazon Web Services (S3 Buckets, EC2, Reserved Instances, etc.)


• Familiar with System Engineering documentation creation (VDDs, diagrams, etc.)


• Familiar with team collaboration tools (Jira, Confluence, RocketChat)


• Must possess an active Top Secret Security Clearance with ability to obtain SCI post hire

PREFERRED QUALIFICATIONS

• Proficient in AWS/Cloud technologies


• Experience with cloud-based architecture

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:

August 13, 2026

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 $69,550.00 - $125,725.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

Commitment to Non-Discrimination

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.

REQNUMBER: R-00189485

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.