Sr Front-End Engineer – Platform Engineering - 17426

Seneca Resources Company, LLC; Vienna (VA); On-site; USD 82,656 - 96,432; Full time

Benefits offered by this job

Health, dental, and vision coverage

401(k) retirement plans

Competitive pay

Job summary

Seneca Resources is seeking a Senior Front-End Engineer – Platform Engineering to join our team. Location options include Vienna, VA, Winchester, VA, Pensacola, FL, or San Diego, CA, with a pay rate of $60-$70 per hour.

You will craft Angular 17+ applications, build reusable components, and help establish front-end standards while partnering with Product, UX, Architecture, and other engineering teams. The role emphasizes accessibility, performance, CI/CD with Azure DevOps, and mentoring junior

Qualifications

• Experience building reusable UI components and design systems.
• Experience with enterprise-scale codebases and accessibility WCAG standards.
• Experience integrating frontend with backend services via REST APIs.

Responsibilities

• Design, develop, and maintain responsive, accessible, and performant web applications using Angular and modern web technologies.
• Build reusable UI components, libraries, and frameworks that promote consistency and scalability across Digital platforms.
• Partner with UX designers, architects, and application teams to translate designs into high-quality user experiences.
• Establish and maintain enterprise design system components, patterns, and styling standards.
• Drive front-end architecture decisions and provide technical leadership on complex initiatives.
• Conduct code reviews and promote best practices for maintainability, performance, accessibility, and security.
• Collaborate with backend and platform engineering teams to integrate REST APIs and shared services.
• Build and maintain CI/CD processes and automation using Azure DevOps.
• Identify and resolve performance bottlenecks, accessibility issues, and technical debt.
• Mentor and provide guidance to other front-end engineers.
• Participate in production support, troubleshooting, root cause analysis, and operational readiness activities.
• Leverage AI-assisted development tools to improve productivity, code quality, testing, and development efficiency.
• Help define and enforce front-end development standards, governance, and engineering best practices.

Skills

Reusable components

Design systems

Accessibility (WCAG)

REST API integration

Azure DevOps

CI/CD

Unit/ integration tests

Angular expertise

Agile delivery

AI-assisted tools

Tools

Storybook

NX Workspace

Bootstrap / ng-Bootstrap

Git

Azure DevOps

Jest / Karma

Job description

Position Title: Senior Front-End Engineer – Platform Engineering
Location: V ienna, VA, Winchester, VA, Pensacola, FL or San Diego, CA
Pay Rate: $60.00 - $70.00

We are seeking a Senior Front-End Engineer with deep expertise in Angular 17+, modern web technologies, and enterprise-scale UI development.

The ideal candidate combines strong technical expertise with a passion for user experience, accessibility, scalability, and engineering excellence. This individual will partner closely with Product, UX, Architecture, and Engineering teams to deliver consistent, responsive, and maintainable user experiences across web applications while helping establish front-end standards and best practices.

Responsibilities

• Design, develop, and maintain responsive, accessible, and performant web applications using Angular and modern web technologies.
• Build reusable UI components, libraries, and frameworks that promote consistency and scalability across Digital platforms.
• Partner with UX designers, architects, and application teams to translate designs into high-quality user experiences.
• Establish and maintain enterprise design system components, patterns, and styling standards.
• Drive front-end architecture decisions and provide technical leadership on complex initiatives.
• Conduct code reviews and promote best practices for maintainability, performance, accessibility, and security.
• Collaborate with backend and platform engineering teams to integrate REST APIs and shared services.
• Build and maintain CI/CD processes and automation using Azure DevOps.
• Identify and resolve performance bottlenecks, accessibility issues, and technical debt.
• Mentor and provide guidance to other front-end engineers.
• Participate in production support, troubleshooting, root cause analysis, and operational readiness activities.
• Leverage AI-assisted development tools to improve productivity, code quality, testing, and development efficiency.
• Help define and enforce front-end development standards, governance, and engineering best practices.

Required Skills & Experience

• Experience building and maintaining reusable component libraries and design systems.
• Experience working with enterprise-scale codebases and shared styling frameworks.
• Experience implementing accessible solutions that meetWCAG accessibility standards.
• Experience working with REST APIs and integrating frontend applications with backend services.
• Experience with Git-based source control, pull requests, and branching strategies.
• Experience with Azure DevOps, including Repos, Pipelines, and CI/CD practices.
• Experience writing unit, integration, and component tests using frameworks such as Jest, Karma, or similar tools.
• Strong understanding of software architecture principles, design patterns, and SOLID principles.
• Experience working within Agile delivery teams.
• Familiarity with AI-powered development tools (e.g., GitHub Copilot, AI-assisted code generation, testing, and debugging).

Preferred Qualifications

• Experience with NX Monorepo architecture and workspace management.
• Experience with Storybook or similar component documentation tools.
• Experience with Bootstrap, ng-Bootstrap, or similar UI frameworks.
• Experience integrating third-party components into enterprise design systems.
• Knowledge of frontend performance optimization techniques and observability tools.
• Experience supporting digital banking or financial services applications.
• Experience contributing to platform modernization initiatives.

Technical Stack

• Angular 17+
• TypeScript
• HTML5
• CSS3 / SCSS
• Git
• REST APIs
• NX Workspace
• Storybook

About Seneca Resources

At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.

When you work with Seneca, you’re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.

Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.