Software Engineer 3

If you want to be part of a dynamic team delivering cutting-edge cyber training solutions, this is the place for you. Amentum is seeking a Software Engineer to join the Mangrove Development team in Hanover, MD. The Mangrove development team develops, tests, and supports mission-focused cyber training solutions used across multiple locations. 

Mangrove is an enterprise-level project that interacts with a vCenter instance to allow course creators to develop interactive courses that require students to demonstrate their learning by grading exercises directly from student activities on Linux and Windows VMs.

Team members work in a collaborative environment supporting the entire software development process, including requirements analysis, design, development, testing, and release. Engineers work closely with customers to identify new features, bug priorities, and release schedules.

This position is ideal for software engineers who enjoy solving complex technical challenges, learning new technologies, and applying their skills across a diverse portfolio of software, infrastructure, and operational systems. 

Work Schedule: Contract core hours are 1000-1400. The Development team maintains flexible schedules, and currently supports 100% telework.  

Essential Responsibilities:

The Software Engineer contributes to the design, development, deployment, and maintenance of the Mangrove LMS. Software Engineer 3 personnel apply technical expertise and institutional knowledge to guide development and implementation decisions, mentor junior engineers, and improve the team's applications and testing environment. Team members are expected to develop expertise across multiple areas of the software development lifecycle while contributing their strengths in specific technical domains. 

Responsibilities include: 

• Review software designs, architecture, and code to ensure maintainability, scalability, and adherence to engineering best practices. 
• Design, develop, deploy, and maintain user interfaces, backend services, APIs, databases, automation tools, and testing infrastructure. 
• Design, implement, maintain, and continuously improve software development and deployment pipelines. 
• Provide technical leadership for the creation, maintenance, troubleshooting, and continuous improvement of realistic cyber training environments and the software and testing infrastructure that support them. 
• Perform software testing, debugging, validation, and analysis of results. 
• Evaluate emerging technologies, development methodologies, and engineering practices, recommending adoption where they provide measurable benefit to the team or mission. 
• Collaborate with customers and other team members to document solutions, improve workflows, and enhance training capabilities. 
• Share technical knowledge through collaboration, design discussions, code reviews, and mentoring of less experienced engineers. 

Minimum Education & Years of Experience:

• Master’s Degree in Computer Science, Software Engineering, Information Systems, or related field and (5)years of relevant experience OR Bachelor’s Degree in the same fields and ten (10) years of relevant experience OR Associates Degree  (or 18 semester hours of military coursework/training in a computer related field) and twelve (12) years of relevant experience OR High School diploma/GED and fourteen (14) years of relevant experience. Relevant experience includes technical leadership, software architecture/design, complex troubleshooting, and supporting controlled releases/operations for enterprise systems.
• Demonstrate knowledge of commonly used application programming languages, frameworks and components (to include, but not limited to: Golang, Python, Ruby, shell scripting, HTML, CSS, React/MUI, AJAX, JSON/XML, JavaScript/TypeScript and JQuery, SQL/NoSQL and relational databases, etc…).   
•  A working knowledge of both Windows and Linux platforms e.g. set up, maintenance, or administration of servers and workstations.   
• Experience working with agile methodologies  
• Experience setting up and maintaining development and testing environments in virtualized environments to create or support realistic interactive learning e.g. VMWare, Kubernetes, Docker, etc. 

Minimum Requirements (Knowledge, Skills, and Abilities): 

LCAT Domain Specialized Requirements 

• Technical Leadership: Experience leading design/code reviews, mentoring engineers, and setting implementation standards 

• Architecture & Integration: Experience designing service interfaces/APIs, integrations, and data models for enterprise systems 

• Databases: Experience with NoSQL databases and performance considerations 

• Platforms: Experience supporting applications in Linux and Windows environments 

Required Certifications:

• Sec+ or equivalent 

Preferred Qualifications:

The ideal candidate has experience contributing to software development, DevOps, or application support activities and a desire to expand their knowledge across the software development lifecycle. 

Team members may initially bring deeper experience in areas such as user interfaces, backend services, infrastructure, automation, or deployment. These areas represent technical strengths rather than separate roles. Engineers are expected to expand their skills across the full software development and deployment lifecycle. 

Role Expectations 

Serve as a technical resource for software development, deployment, and testing activities. 

Apply engineering judgment and institutional knowledge when evaluating implementation approaches and resolving complex technical issues. 

Provide technical ownership for assigned applications, services, and infrastructure throughout their lifecycle. 

Mentor and support less experienced engineers through collaboration, technical guidance, and code reviews. 

Continuously broaden expertise across the team's applications, services, deployment pipelines, and testing infrastructure. 

Preferred experience includes one or more of the following: 

• Full-stack software development using modern frontend and backend technologies. 
• Database design and development using NoSQL technologies. 
• Software testing, source control, and CI/CD practices. 
• Automation, scripting, and DevOps tooling. 
• System integration, networking, and application configuration. 

Successful team members will: 

• Demonstrate broad technical expertise while continuing to expand knowledge across the team's portfolio. 
• Apply sound engineering judgment when balancing mission needs, technical debt, maintainability, and operational risk. 
• Collaborate effectively across technical disciplines to deliver integrated solutions. 
• Communicate complex technical concepts clearly through documentation, design discussions, and collaboration. 
• Lead by example through high-quality engineering practices, technical mentorship, and continuous improvement. 

Software Engineer 3 personnel are expected to lead development efforts, guide technical decisions, and mentor less experienced engineers while remaining active contributors throughout the software development lifecycle. 

#javelin

As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug-free workplace and requires all personnel to comply with company drug and alcohol policies as a condition of employment.  Employment is contingent upon successful completion of the drug screening process.  Please note that this may include pre-hire screening for marijuana, as well as other federally controlled substances due to Amentum’s role as a federal contractor and trusted partner to the US Government.  

Other Responsibilities:

Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

Quality - Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.

Procedure Compliance - Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.

Compensation Details:

$200,000 - $250,000

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:

11/13/2026 - 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.