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Software Developer - Expert

AmentumFairfax, Virginia

$225,000 - $235,000 / year

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Overview

Schedule
Full-time
Career level
Senior-level
Remote
On-site
Compensation
$225,000-$235,000/year
Benefits
Health Insurance
Dental Insurance
Vision Insurance

Job Description

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):

  • 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.
  • Experience monitoring critical systems.
  • Experience with SQL and NoSQL databases

Clearance Required:  

  • TS/SCI with Poly

Minimum Education:

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

Minimum Years of Experience:

  • 10

Preferred Qualifications:

  • 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.
  • Experience monitoring critical systems.
  • Experience with SQL and NoSQL databases

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.

#javelin

Compensation Details:

$225,000 - $235,000

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:

05/26/2026 - 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.

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FAQs About Software Developer - Expert Jobs at Amentum

What is the work location for this position at Amentum?
This job at Amentum is located in Fairfax, Virginia, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.
What pay range can candidates expect for this role at Amentum?
Candidates can expect a pay range of $225,000 and $235,000 per year.
What employment applies to this position at Amentum?
Amentum lists this role as a Full-time position.
What experience level is required for this role at Amentum?
Amentum is looking for a candidate with "Senior-level" experience level.
What benefits are offered by Amentum for this role?
Amentum offers following benefits: Health Insurance, Dental Insurance, Vision Insurance, Disability Insurance, Life Insurance, Paid Holidays, Paid Vacation, Parental and Family Leave, 401k Matching/Retirement Savings, Tuition/Education Assistance, and Health & Wellness Programs for this position. Actual benefits may vary depending on the employer's policies and employment terms.
What is the process to apply for this position at Amentum?
You can apply for this role at Amentum either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.