Senior Front-End Architect (Mission-Critical Systems)

Amentum; Washington (District of Columbia); On-site; USD 185,000 - 190,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) matching

Paid time off

Job summary

Amentum is seeking a Senior Level Front-End Developer to join our agile team and deliver powerful, responsive interfaces that support mission-critical programs. You will collaborate with system engineers and users to design, build, and optimize front-end solutions using HTML, CSS, and JavaScript in a fast-paced, security-focused environment.

This role offers growth, challenging problems, and the chance to contribute to national security initiatives.

Qualifications

• 9+ years of experience in systems architecture, software development, or enterprise IT design.
• Proven expertise in full SDLC with hands-on analysis, coding, testing, documentation, and system acceptance.
• Experience with government IT systems, standards, and security frameworks.
• Proficiency in multiple programming languages and technologies, including: C#, Java, JavaScript, CSS, .NET, MVC, and SQL.
• Knowledge of cloud platforms and Agile/DevSecOps methodologies.

Responsibilities

• Lead architectural design and development for enterprise applications using technologies including C#, Java, JavaScript, CSS, MVC, .NET, and SQL.
• Coordinate with cross-functional teams to gather, analyze, and define system requirements that align with customer missions and long-term goals.
• Design and implement scalable, maintainable solutions leveraging T-SQL, JavaScript frameworks, and scripting languages, while ensuring code structure follows best practices.
• Oversee development workflows in Team Foundation Server (TFS) and ensure proper source control, build, and release processes are followed.
• Mentor junior developers and engineers, providing code reviews, architectural guidance, and technical leadership.
• Coordinate and prioritize multiple ongoing projects and tasks to meet deadlines in a high-pressure, mission-driven environment.

Skills

C#

Java

JavaScript

CSS

MVC

ASP.NET

SQL

T-SQL

JS Frameworks

TFS

Cloud platforms

SDLC

Technical leadership

Education

Bachelor’s degree in Computer Science, Information Systems, Engineering

Tools

TFS

JS Frameworks

SQL Server

Git

Cloud (AWS/Azure/GCP)

Job description

Amentum is seeking a Senior Level Front-End Developer to join our agile team and deliver powerful, responsive interfaces that support mission-critical programs. You will collaborate with system engineers and users to design, build, and optimize front-end solutions using HTML, CSS, and JavaScript in a fast-paced, security-focused environment.

This role offers growth, challenging problems, and the chance to contribute to national security initiatives.