Entry-Level Software Developer

Amentum is seeking skilled Software Engineers to become part of our US Navy Advanced Technology Development Team. The ideal candidate will design, optimize, and develop software to maximize performance and efficiency in an R&D-focused environment. This position is primarily based in Fredericksburg and Dahlgren, VA, with occasional opportunities for telecommuting and travel. Responsibilities of a Software Engineer - Collaborate with the team and end-users to develop graphical user interfaces (GUIs) for in-house tools. - Create and implement software updates utilizing C++, Rational Team Concert, GitLab, and other DevOps tools. - Participate in and support test events, which may require occasional travel. Minimum Qualifications - Bachelor’s degree in Engineering, Mathematics, Computer Science, or Physics, with some relevant experience. - Active Secret-level US Government Security Clearance (US citizenship required to maintain clearance). - Proficiency in defining and managing software requirements, designing, coding, benchmarking, testing, debugging, and documenting within a software development lifecycle. - Ability to plan, perform, and lead efforts related to software design, coding, and testing. - Hands-on experience with Agile software development environments and methodologies. - Familiarity with Atlassian tool suites, including Jira (issue tracking) and Confluence (decision tracking). - Proficient use of source code versioning tools such as Git or Bitbucket. - Experience with C++ or C# (preferred). - Ability to commute to Fredericksburg and Dahlgren, VA (approximately 1 hour south of Washington D.C.). - Possession of a valid Real ID driver’s license for access to customer sites, as well as reliable personal transportation (rideshare options like Uber/Lyft are not permitted), due to occasional travel requirements between local job sites. Benefits & Perks - Comprehensive health, vision, and dental coverage - 401(k) plan with employer matching - Tuition reimbursement program - Wellness initiatives - Professional growth opportunities and career advancement - Discounts on various services - Paid time off, including flexible holiday options - Parental leave - Basic life insurance and AD&D coverage Join a team passionate about innovation and cutting-edge development. Apply today to be a part of the future of advanced technology solutions! Compensation Details: $75K to $90K 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: 06/23/2026 - 06/26/2026 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. Welcome back! We encourage you to check on the status of your current job applications with us. You can also search for a list of our current job openings and see if there are any new positions that might be a good fit for you. Thank you for continued interest in employment with Amentum. For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S. government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at If you need a reasonable accommodation for any part of the employment process, please contact us by email at View email address on click.appcast.io and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. If you need assistance, please reach out to View email address on click.appcast.io EEO including Disability/Protected Veterans Labor Laws Posters Amentum has become aware of unauthorized individuals who are falsely using the Amentum name and /or logo in an attempt to solicit fees from potential job seekers. These deceptive and unauthorized individuals are soliciting money, promising placement in a position with Amentum. Please note any communication requesting any amount of money in exchange for employment with Amentum is fraudulent. These communications do not originate from Amentum and are not associated with the recruitment process. Amentum and its affiliates never charge candidates fees or payments of any kind in order to secure employment. As a precaution, we recommend you do not disclose personal or financial details to anyone as a response to an unsolicited email, social media, or dating website request. 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