Software Engineer II

Amentum

. Perform full stack development using C#, ReactJS, MVC, Linq, and REST API development on the .NET Core platform .

Posted 9/29/2026full-timeRemote • United StatesMid-LevelSenior💰 $97,000 - $121,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in Full Stack Development using C#, ReactJS, MVC, and REST API on the .NET Core platform, with a strong focus on software design, troubleshooting, and quality assurance. Proficient in relational databases and Microsoft SQL Server, ensuring robust and maintainable web applications.

Highest-signal resume keywords

C# Programming ExperienceFull Stack DevelopmentREST API DevelopmentMicrosoft SQL Server (T-SQL)Model-View-Controller (MVC)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C#ReactJSMVCLinqREST APISoftware DevelopmentRelational DatabasesMicrosoft SQL ServerSoftware TestingSoftware Deployment

Soft Skills

Excellent CommunicationAnalytical SkillsPlanning/Organizing SkillsAdaptabilityAbility to Work Under Deadlines

Industry Keywords

Software Quality ProceduresContinuous ImprovementSecurity ClearanceUS CitizenshipSoftware Requirements Review

Tech Stack

Tools & technologies

MS SQL ServerReactSQL.NET

About the role

Key responsibilities & impact

Perform full stack development using C#, ReactJS, MVC, Linq, and REST API development on the .NET Core platform
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
Perform software upgrades in accordance with software quality procedures
Handle frequent inter-organizational and outside customer contacts on technical matters
Support Continuous Improvement efforts to improve the quality of existing software
Design and implement standard software application programs and reports according to project software standards and conventions
Perform other duties as assigned

Requirements

What you’ll need

Typically, 3 years of C# program experience with .NET technology, MVC, Linq, and REST API development
Bachelor's degree in a related technical discipline (e.g., BSEE, BSCS) or equivalent in Computer Science or related field
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 communication and analytical skills
Good planning/organizing skills
Ability to prioritize and adapt to dynamic changes in the environment
Must be able to work under deadlines
US Citizenship is required
Position may require the ability to pass and maintain a Security Clearance
Position may require travel of 5%
ReactJS programming experience preferred

Benefits

Comp & perks

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