Senior Software Developer

Purpose and Impact:

We are seeking a talented and experienced Senior Software Engineer to join our dynamic team. The ideal candidate will have over 10 years of software development experience with a strong background in cloud technologies and development, information systems, and service-oriented architectures. The role requires proficiency in full-stack development, database design, DevOps, and the ability to migrate and modernize legacy applications to the cloud.

Work Schedule:

M- F 40 hours a week

Essential Responsibilities:

• Lead software development projects from requirements analysis through deployment and maintenance.
• Design and develop software solutions, employing technologies such as Python, NodeJS, Angular, JavaScript, C#, SQL Server, Microsoft Windows Server, and Linux.
• Experience with cloud technologies, migrating existing systems to the cloud, and establishing new CI/CD pipelines.
• Monitor, troubleshoot, and enhance system operations using tools like Splunk and Grafana/Prometheus.
• Work with Jira and Confluence for agile management.
• Produce technical documentation, including system designs, Interface Control Documents (ICDs), and operational procedures.
• Collaborate with cross-functional teams to reverse engineer legacy codebases and produce UML models.
•  Support secure communications systems, ensuring compliance with operational and security standards.
•  Research, prototype, and recommend improvements to existing systems and architectures.
• Troubleshoot and resolve complex software, performance, and infrastructure issues.
• Research and adopt emerging technologies to enhance system efficiency.

Minimum Requirements (Knowledge, Skills, and Abilities):

• 10+ years experience with Bachelors and 7+ years' experience with Masters degree.
• Hands-on experience with secure systems engineering, systems integration, and reverse engineering.
• Proficiency in programming languages (at least two): Python, NodeJS, Angular, JavaScript, C#, SQL.
• Experience with cloud technologies. Experience working with tools like JIRA, Confluence, Splunk, and diagramming applications.
• Strong skills in debugging, performance optimization, and DevOps practices.
• Background in on-call support and operational monitoring of critical systems.

Clearance Required:  TS/SCI w/Poly

Minimum Education: Bachelor’s degree in Computer Science, Design, or related field (or equivalent experience). 

Minimum Years of Experience: 10+ years of experience with Bachelors and 7 years with Masters degree.

Required Certifications: NA

Preferred Qualifications:

• Experience with design systems and component libraries. 
• Experience with AWS.
• Experience with EKS or other container orchestration software.
• Excellent technical writing and documentation skills.
• Experience in collaborating with multidisciplinary teams.
• Familiarity with high-availability systems and secure communications.

#javelin

       

Compensation Details:

$200,000 - $220,000

       

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:

01/09/2026 - 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.