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Sr Front-End Engineer – Platform Engineering

Job in Vienna, Fairfax County, Virginia, 22184, USA
Listing for: Seneca Resources Company, LLC
Full Time position
Listed on 2026-09-12
Job specializations:
  • Software Development
    Front End Developer, Angular Developer
Salary/Wage Range or Industry Benchmark: 60 - 70 USD Hourly USD 60.00 70.00 HOUR
Job Description & How to Apply Below

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 Dev Ops.
  • 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 meet
    WCAG 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 Dev Ops, 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., Git Hub 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+
  • Type Script
  • 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…

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