Software Engineer Junior

Amentum; California; On-site; USD 70,000 - 85,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Software Engineer Junior to support the Space Force Range Contract (SFRC). You will develop, test, and maintain software under the guidance of senior engineers, write clean, efficient code, and participate in code reviews with cross‑functional teams.

Ideal candidates have a BS in Computer Science or Software Engineering, 0–2 years of experience, knowledge of Java, Python, C++, or JavaScript, and familiarity with data structures, algorithms, and Git.

Qualifications

• Bachelor’s of Science degree in Computer Science, Software Engineering or related field.
• 0-2 years of experience in Software Engineering.
• Basic understanding of programming languages such as Java, Python, C++, or JavaScript.
• Familiarity with data structures, algorithms, and object‑oriented programming.
• Knowledge of version control systems (e.g., Git).
• The ability to lift 30 lbs.
• Some travel may be required (less than 10%)
• Current Security+ or other DoD 8570 Certification or ability to obtain certification within six (6) months of start date
• The flexibility to work occasional non‑duty hours or on weekends to support specific project or mission requirements
• Must be able to obtain and maintain a DoD Secret Security Clearance, which includes U.S. citizenship or U.S. naturalization

Responsibilities

• Develop, test, and maintain software applications under the guidance of senior engineers.
• Write clean, efficient, and well‑documented code
• Participate in code reviews and team meetings
• Troubleshoot, debug, and resolve software defects
• Collaborate with cross‑functional teams including product managers and designers.
• Learn and apply best practices in software development, security, and performance.
• Assist in implementation of new features and enhancements
• Additional duties as assigned

Skills

Communication

Analytical thinking

Time management

Teamwork

Independent work

Education

BSc in Computer Science or Software Engineering

Tools

Java

Python

C++

JavaScript

Git

Job description

Amentum is seeking a Software Engineer Junior to support the Space Force Range Contract (SFRC).

Essential Functions:

• Develop, test, and maintain software applications under the guidance of senior engineers.

• Write clean, efficient, and well‑documented code

• Participate in code reviews and team meetings

• Troubleshoot, debug, and resolve software defects

• Collaborate with cross‑functional teams including product managers and designers.

• Learn and apply best practices in software development, security, and performance.

• Assist in implementation of new features and enhancements

• Additional duties as assigned

Required Skills:

• Effective communication skills with demonstrated capability to brief project information to management and customers

• Strong analytical and problem‑solving skills

• Strong organizational and time‑management skills to balance, plan, prioritize and execute projects

• Ability to work within a dynamic, fast paced environment with time constraints

• Ability to work independently and as part of a team

Required Experience:

• Bachelor’s of Science degree in Computer Science, Software Engineering or related field

• 0-2 years of experience in Software Engineering

• Basic understanding of programming languages such as Java, Python, C++, or JavaScript.

• Familiarity with data structures, algorithms, and object‑oriented programming.

• Knowledge of version control systems (e.g., Git).

• The ability to lift 30 lbs.

• Some travel may be required (less than 10%)

• Current Security+ or other DoD 8570 Certification or ability to obtain certification within six (6) months of start date

• The flexibility to work occasional non‑duty hours or on weekends to support specific project or mission requirements

• Must be able to obtain and maintain a DoD Secret Security Clearance, which includes U.S. citizenship or U.S. naturalization

Salary and Other Compensation

The annual starting salary for this position is between $70,000 - $85,000 annually. Factors which may affect starting pay within this range include geography/market, skills, education, experience, and other qualifications of the successful candidate.

Compensation Details:

$85,000

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:

10/27/2026 - 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 atLabor Laws Posters.