Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.
The Software Engineer II will perform full stack development with C# program, ReactJS, MVC, Linq, and rest API development in NET Core platform. This position is US remote teleworking within the US and US Citizenship is required.
Essential Responsibilities:
- Under general supervision, design, develop, troubleshoot, and analyze software programs for computer-based systems
- Ensure automated data feeds and system interfaces are working as intended
- Participate in software requirements review, preliminary and critical design reviews, integration readiness review, and software acceptance reviews
- Design, write, test, deploy and support software code, as assigned
- Perform software upgrades in accordance with software quality procedures
- Frequent inter-organizational and outside customer contacts on technical matters
- Support Continuous Improvement efforts intended to improve the quality of existing software
- Design and implement new or existing standard software application programs and reports according to project software standards and conventions
- Perform other duties as assigned
Knowledge, Skills and Abilities:
- Deep understanding of relational databases and Microsoft SQL Server (T-SQL)
- Strong knowledge of Model-View-Controller (MVC), Linq Query, and rest API development
- Ability to build robust, maintainable web applications and services
- Excellent communications and analytical skills required
- Good Planning/organizing skills
- Ability to prioritize and adapt to dynamic changes in the environment
- Must be able to work under deadlines
- Position may require travel 5%
Minimum Education and Experience Required:
- Typically, 3 years of C# program experience with .NET technology, MVC, Linq, and rest API development with a Bachelor’s degree in a related technical discipline (e.g., BSEE, BSCS) or equivalent in Computer Science or related field
- ReactJS programming experience preferred
- Position may require the ability to pass and maintain a Security Clearance
- US Citizenship is required.
Compensation Details:
$97k - $121k
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:
09/29/2026 - Until FilledAmentum 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.
Skills Required
- Approximately 3 years of C# programming experience with .NET technology, MVC, LINQ, and REST API development
- Bachelor's degree in a related technical discipline, such as Electrical Engineering or Computer Science, or equivalent experience
- ReactJS programming experience
- Deep understanding of relational databases and Microsoft SQL Server, including T-SQL
- Strong knowledge of MVC, LINQ queries, and REST API development
- US citizenship
- Ability to pass and maintain a security clearance
Amentum Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Amentum and has not been reviewed or approved by Amentum.
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Healthcare Strength — Healthcare offerings are described as comprehensive, with medical, dental, and vision plans and multiple PPO/HSA options. Mental health support via an employee assistance program and other wellness resources is also included in the benefits mix.
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Retirement Support — Retirement support is positioned as a meaningful part of total rewards through a 401(k) plan with employer matching. Profit-sharing contributions and immediate or near-term vesting in some cases further strengthen the retirement value proposition.
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Leave & Time Off Breadth — Time-off benefits are presented as solid for the sector, including tiered PTO accrual by tenure and a set of paid holidays. Role-dependent flexible or remote work options and leave programs add to perceived work-life support.
Amentum Insights
What We Do
Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.
