Full Stack Developer

Amentum; Baltimore (MD); On-site; USD 218,000 - 241,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Job summary

Amentum is seeking a Senior Full-Stack Developer to join a mission-driven team in Maryland. You will build geolocation capabilities, create service-oriented Java architectures, and develop microservice solutions with web interfaces.

You’ll participate in the full lifecycle from requirements to deployment and Tier 3 support. Responsibilities include developing in Java (17+), embracing Spring Boot and microservices, and implementing 508 compliant UIs.

Qualifications

• Experience with Enterprise Java development (17+).
• Experience with Java frameworks like Spring Boot.
• Experience with messaging frameworks (JMS, RabbitMQ, ActiveMQ, ZeroMQ) and data formats (JSON, XML, Proto).
• Experience designing service-oriented architectures and microservices.
• Database experience (MongoDB, MySQL).
• Experience with Atlassian tools (Jira/Confluence).
• DevOps experience with CI/CD pipelines (GitLab).
• 508 Compliance in UI development.
• Familiarity with Python and data libraries.

Responsibilities

• Develop primarily in Java to enhance existing capabilities.
• Collaborate in an agile environment to derive user stories and plan development.
• Perform integration and testing; debug and fix issues.
• Provide Tier 3 support for deployed capabilities; address bugs.
• Conduct code reviews and improve code quality and efficiency.
• Communicate effectively with team members and stakeholders.

Skills

Enterprise Java

Spring Boot

Microservices

JSON/XML/Proto

JMS/RabbitMQ

CI/CD

Python

508 Compliance

Education

Bachelor’s degree in Computer Science or related discipline

Tools

Jira

Confluence

GitLab

Kubernetes

Docker

NiFi

Elasticsearch

Job description

Purpose and Impact

a write up about the program that will attract candidates

Our Full-Stack Developers work in a dynamic, mission-driven environment to develop geolocation capabilities, adapting to changing priorities that directly support the warfighter. In this role, you will create service-oriented architectures in Java and microservice solutions, and build web interfaces. You will participate in the full lifecycle of your code, from translating requirements into user stories, through integration and testing, to deployment and Tier 3 support.

Work Schedule

(shift hours and days of the week)

5 Days/ 8 hours per day

Essential Responsibilities

(describe the day-to-day)

• Perform software development predominantly using Java to create and implement enhancements to existing capabilities
• Collaborate with software and systems engineers in an agile environment to analyze requirements and derive user stories for development planning
• Perform integration and testing as needed
• Test and debug code for integrated applications
• Leverage SI to debug code, conduct code reviews, and improve code quality and efficiency
• Provide Tier 3 support for deployed capabilities and address bug fixes
• Communicate and collaborate effectively with other team members, as well as with stakeholders

Work Environment, Physical Demands, and Mental Demands

Minimum Requirements (Knowledge, Skills, and Abilities)

• Experience with Enterprise Java development (versions 17 or higher)
• Experience with Java application frameworks, such as Spring Boot
• Experience with messaging frameworks such as JMS, RabbitMQ, ActiveMQ, ZeroMQ, and supporting data formats such as JSON, XML, and Google Protocol Buffers
• Experience developing service-oriented architectures
• Experience developing micro service solutions
• Database experience such as Mongo or MySQL
• Experience analyzing requirement, creating use cases, and test cases and tracking work using the Atlassian tool suite (Jira/Confluence)
• DevOps experience including managing CI/CD pipelines to automate building, testing, and deploying code utilizing GitLab runners
• Experience implementing 508 Compliance requirements to user interfaces
• Familiarity with or willingness to perform agentic coding
• Ability to leverage SI to debug code, conduct code reviews, improve code quality and efficiency, and determine root-cause analysis
• Experience with Python development
• Ability to work individually or as part of a team and shift between priority tasks as directed

Security Clearance Required

TS//SCI w Poly - Maryland

Minimum Education

Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required.

Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree.

Minimum Years of Experience

Fourteen (14) years’ experience as a SWE in programs and contracts of similar scope, type, and complexity is required.

Required Certifications

(if needed)

Preferred Qualifications: AI if applicable to your program

• Experience with Java development IDEs (e.g. IntelliJ, Eclipse, VS Code)
• Experience/knowledge with installations and configuration utilizing Kubernetes, Docker Compose and Nifi
• Experience with Elasticsearch
• Experience with geolocation applications and/or JICD
• Experience/knowledge of ISLANDTRANSPORT, messaging infrastructure
• Exposure to/basic familiarity with Python libraries for scientific programming (examples: NumPy, pandas) desired
• Ability to read and write into/out of the data structures adjacent to complex mathematics

Additional Hashtags

#javelin

Compensation Details

$218,000 - $241,000

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting

10/30/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters (https://postings.govdocs.com/#/vxSkbztPuAwwxfs).