Software Developer (Mid) TS/SCI

Amentum is searching for a Software Developer to join our team in Arlington, VA. You will be working in support of a DoW Special Programs customer developing a new application in AWS GovCloud. The mission is to modernize and sustain a secure, web-based platform that consolidates critical government workflows, enabling automated data management, role-based access control, and multi-level security capabilities in support of national security operations. Work Schedule: Work is typically performed, Monday through Friday 8-hour days onsite. Flexibility within a 2-week pay period to reach 80 hours. Essential Responsibilities: The Software Developer is responsible for Developing codes, testing, and debugging new software or enhancements to existing software. The Software Developer works with technical staff to understand problems with software and resolve them. Resolves customer complaints about software and responds to suggestions for improvements and enhancements. Possesses and applies expertise on multiple complex work assignments. Has good understanding of business applications as well as user, performance, quality, interface, and security requirements. May assist in development of software user manuals. Responsible for desktop design, testing, security lockdown implementation, integration with standard software packages, integration with automated patching and deployment technologies, documentation, and training to include automating application and configuration deployments and updates. Possesses and applies expertise on multiple complex work assignments. Assignments may be broad in nature, requiring originality and innovation in determining how to accomplish tasks. Operates with appreciable latitude in developing methodology and presenting solutions to problems. Contributes to deliverables and performance metrics where applicable. Possesses and applies expertise across multiple complex infrastructure assignments. Operates with appreciable latitude in developing methodology and presenting solutions to problems. Contributes to program deliverables and performance metrics where applicable. Work Environment, Physical Demands, and Mental Demands: Office environment with no unusual hazards, occasional lifting to 50 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, constant mental alertness, must possess planning/organizing skills, and must be able to work under deadlines. Minimum Requirements (Knowledge, Skills, and Abilities): Minimum of 4 years of experience collectively with the following: Developing, testing, and deploying back-end software in a widely used programming language such as Java, JavaScript, Go, Python, Typescript, and .NET Developing, testing, and deploying Java software using the latest versions of the Java Development Kit Implementing and using backend frameworks such as Java Spring, Nodejs, Go GinAngularJS, React, NextJS, Spring, Nodejs, NestJS, and Gin Spring, Google Web Toolkit, Hibernate, and Struts Software development lifecycle processes to include Agile development Software design patterns and antipatterns Development tools (git, integrated development environment, code quality tools, etc.) Working across multiple teams Experience working in an agile development environment Security Clearance Required: TS/SCI - This position requires an active DoD TS/SCI security clearance that has been adjudicated in the last 5 years or designated CE and the ability to obtain and maintain special accesses. Minimum Education: Bachelor’s degree in information systems engineering, Computer Science, Engineering, Business, or other related fields. In absence of degree, additional years of experience may be substituted for educational requirements Minimum Years of Experience: 5-8 Years Required Certifications: AWS Solutions Architect - Associate (minimum); Professional preferred AWS SysOps Administrator - Associate or AWS DevOps Engineer - Professional Security+ CE Preferred Qualifications: Experience supporting a DoW ATO or FedRAMP authorization process Familiarity with DISA STIG compliance requirements and implementation Experience operating PostgreSQL on Amazon RDS including patching coordination and backup/restore validation Experience with Keycloak or equivalent OIDC/SAML identity provider integration in a GovCloud environment AWS Security- Specialty certification Git, GitLab, Terraform, Splunk, HashiCorp Vault, JIRA, Jenkins, Ansible Amazon Web Services GovCloud Microsoft Windows Server and Linux AWS Associate level or above certification Preferred Certifications: AWS Security — Specialty ITIL Foundation 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. #javelin Compensation Details: $130.000 - $145,000 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: 06/11/2026 - 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. 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. Amentum will never as ask for a placement fee or any other fee to expedite the hiring process. If you are contacted by anyone offering employment with Amentum, you should never be asked to pay a fee for recruiting. Amentum personnel will always send email from an identifiable corporate account (ending in @amentum.com) and never from a public email account like Yahoo!, Google, Gmail, or Hotmail. If you are contacted regarding a fraudulent employment proposal, we encourage you to alert your local law enforcement agency/police authority. To read more about Amentum’s commitment to ethics, please click here.