UI Front-End / Front-End Software Engineer 3

J&T
Annapolis Junction, MDFull-time$199,000–$238,000Posted Aug 27, 2026

About the role

Position: UI Front-End / Front-End Software Engineer 3

Location: Annapolis Junction, MD

Employment Type: Full-Time

Clearance Requirement: Active TS/SCI with Polygraph

Salary Range: $199,000 – $238,000 / year (dependent on experience, education, and skill set)

About the Role

Seeking a senior UI Front-End / Front-End Software Engineer (Level 3) to lead front-end architecture, technical standards, and UI team delivery supporting mission-critical operations in Annapolis Junction, MD.

In this role, you will lead and mentor a team of front-end developers while remaining hands-on across the full software lifecycle in an agile environment. You will translate UX/UI design specifications into responsive, highly accessible, production-ready interfaces, architect component-based front-end systems, design efficient API integrations with back-end teams, and ensure robust quality control and accessibility compliance across all deliverables.

Key Responsibilities

Architect and implement scalable, maintainable, and responsive front-end solutions using modern JavaScript frameworks (e.g., React, Angular, Vue).

Lead and mentor front-end engineering teams, providing technical direction, code reviews, coding standards, and task delegation.

Translate design specifications and prototypes into fully accessible, standards-compliant user interfaces (e.g., Section 508, WCAG).

Collaborate with back-end engineers to design and integrate RESTful/GraphQL APIs, optimizing data flow between client interfaces and server-side components.

Contribute to full-stack engineering efforts, including back-end microservices, database interfaces, and CI/CD deployment pipelines.

Design, optimize, and execute complex database/repository interfaces and queries.

Identify and remediate performance bottlenecks, cross-browser anomalies, and technical debt.

Confer with systems engineers, hardware teams, and mission stakeholders to derive software requirements, evaluate system resource constraints, and resolve technical challenges.

Author and review comprehensive system documentation, test plans, and software engineering standards.

Required Qualifications & Experience

Security Clearance: Active TS/SCI with a current Polygraph.

Experience & Education:

Bachelor’s degree in Computer Science or a related discipline from an accredited institution plus at least 12 years of software engineering experience on programs/contracts of similar scope and complexity, OR

16 years of relevant software engineering experience without a degree (4 additional years substituting for the degree).

Database & Repository Interface Experience: Minimum of 7 years dedicated to software database and repository interface development.

Front-End Engineering: Strong hands-on proficiency with HTML5, CSS3, modern JavaScript/TypeScript, component-based architectures, state management patterns, and major frameworks (React, Angular, or Vue).

Full-Stack & APIs: Practical full-stack experience with back-end technologies (e.g., Node.js, Python, Java) and RESTful/GraphQL API design.

DevOps & Tools: Experience with Git version control, CI/CD automated build pipelines, and Agile development methodologies.

Technical Leadership: Proven track record leading engineering teams, managing code reviews, and enforcing software quality standards.

Desired Qualifications

Experience deploying software within commercial or classified cloud environments (AWS, Azure, or GovCloud).

Hands-on development experience in Linux/Ubuntu operating environments and tiered enterprise architectures.

Deep knowledge of web accessibility mandates, Section 508 compliance, and WCAG guidelines.

Benefits & Compensation

This position offers a comprehensive benefits package designed to support employees both personally and professionally:

Comprehensive Health, Dental, and Vision Insurance

Basic Life and Disability Insurance

Paid Time Off (PTO) and Paid Holidays

Paid Parental Leave

401(k) Retirement Plan with Company Match

Tuition Reimbursement for ongoing education and professional development

An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected under federal, state, or local law.

Responsibilities

  • Architect and implement scalable, maintainable, and responsive front-end solutions using modern JavaScript frameworks.
  • Lead and mentor front-end engineering teams, providing technical direction, code reviews, coding standards, and task delegation.
  • Translate design specifications and prototypes into fully accessible, standards-compliant user interfaces.
  • Collaborate with back-end engineers to design and integrate RESTful/GraphQL APIs.
  • Contribute to full-stack engineering efforts, including back-end microservices and CI/CD deployment pipelines.
  • Identify and remediate performance bottlenecks and technical debt.
  • Author and review comprehensive system documentation and test plans.

Qualifications

  • Active TS/SCI security clearance with a current Polygraph.
  • Bachelor’s degree in Computer Science or related discipline plus at least 12 years of software engineering experience, or 16 years of relevant experience without a degree.
  • Minimum of 7 years dedicated to software database and repository interface development.
  • Strong hands-on proficiency with HTML5, CSS3, modern JavaScript/TypeScript, and major frameworks.
  • Practical full-stack experience with back-end technologies and API design.
  • Experience with Git version control, CI/CD automated build pipelines, and Agile methodologies.
  • Proven track record leading engineering teams and enforcing software quality standards.

Benefits

  • Comprehensive Health, Dental, and Vision Insurance
  • Basic Life and Disability Insurance
  • Paid Time Off (PTO) and Paid Holidays
  • Paid Parental Leave
  • 401(k) Retirement Plan with Company Match
  • Tuition Reimbursement for ongoing education and professional development

Skills mentioned

HTMLCSSJavaScriptTypeScriptReactREST APIsGraphQLGitCI/CDWeb Accessibility

About J&T

We recruit the finest C Suite executives to lead your team and scale your business. If you are a budding start up, building a strong team can be the foundation of growth for your business and we have mastered the art of building exceptional teams. What are you waiting for? GET IN TOUCH! Let's Build Your Dream Team Together.

Business Consulting and Services11-50 employeesLondon, Greater London