Senior Front-End Engineer

Position Title: Senior Front-End Engineer – Platform Engineering Location: Vienna, VA, Winchester, VA, Pensacola, FL or San Diego, CA Pay Rate: $60.00 - $70.00 Overview 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 Expert-level experience developing applications using Angular 17+.Strong proficiency with TypeScript, JavaScript, HTML5, CSS3, and SCSS.Experience developing large-scale Single Page Applications (SPAs).Experience building and maintaining reusable component libraries and design systems.Experience working with enterprise-scale codebases and shared styling frameworks.Strong understanding of responsive web design and cross-browser compatibility.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 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+TypeScriptJavaScriptHTML5CSS3 / SCSSAzure DevOpsGitREST APIsNX WorkspaceStorybookBootstrap / ng-Bootstrap 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.