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Seneca Resources Company, LLC

Sr. Front End Developer (Digital) 16591

Hybrid

Fairfax, United states

Senior

Freelance

03-03-2026

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Skills

JavaScript TypeScript GitHub CI/CD DevOps Version Control Azure DevOps Test Scrum Agile methodologies Architecture Software Architecture angular Organization Azure AWS Software Development Agile AWS Cloud Bootstrap HTML5 CI/CD Pipelines

Job Specifications

Position Title:

Senior Front-End Engineer (Angular 17+)

Location:

(Hybrid – 3 days onsite weekly) -Vienna, VA / Pensacola, FL 

Position Status:

Contract - W2 

Pay Rate:

W2 (with PTO): $65–$70/hour

C2C: $70–$80/hour (Own Corp)

Position Description:

We are seeking a Senior Front-End Engineer with deep expertise in Angular 17+ to join a high-impact Digital Execution team. This role focuses on building scalable, responsive, and accessible enterprise web applications that power modern digital experiences.

You will play a key role in designing and developing reusable UI components, maintaining enterprise design systems, and delivering high-quality, performant Single Page Applications (SPAs). This is an opportunity to work on large-scale enterprise platforms using modern open-source technologies and cloud-based DevOps environments.

If you are passionate about clean architecture, component-driven development, accessibility standards (WCAG), and scalable front-end engineering — this role is for you.

Key Responsibilities:

Design and develop responsive, high-performance Single Page Applications (SPA) using Angular 17+, TypeScript, HTML5, and SCSS/CSS3

Build reusable, scalable, and testable UI components aligned with enterprise design systems

Develop new client-facing features that integrate with RESTful APIs

Collaborate closely with Product Owners, UX Designers, and backend engineers to deliver seamless digital experiences

Establish and maintain component libraries and shared stylesheets across a large enterprise codebase

Integrate third-party components into the design system

Ensure accessibility compliance (WCAG 2.0 standards) and support accessibility audits

Write unit tests using Karma, Jest, or similar frameworks

Identify performance bottlenecks, debug issues, and continuously improve code quality

Support CI/CD pipelines and DevOps processes in Azure DevOps or AWS environments

Follow Agile methodologies, Test-Driven Development (TDD), and modern architectural best practices

Required Skills / Education:

10+ years of professional software development experience

5+ years building dynamic, highly interactive web user interfaces

Hands-on experience with Angular 17+ (required)

Advanced proficiency in TypeScript, JavaScript (ES6+), HTML5, CSS3/SCSS

Strong experience developing and maintaining enterprise design systems / component libraries

Experience working within large enterprise codebases and shared stylesheet architectures

Experience with REST APIs integration

Experience working with Monorepos (NX workspace preferred)

Strong knowledge of S.O.L.I.D. principles and software architecture patterns

Experience with Unit Testing (Karma, Jest)

Experience with Azure DevOps, GitHub, or other version control systems

Experience in CI/CD pipeline configuration and automation

Knowledge of WCAG 2.0 accessibility standards and accessibility QA processes

Experience working in Agile/Scrum environments

Nice to Have:

NX Workspace experience

Bootstrap / ng-Bootstrap

Storybook (or similar UI component library tooling)

Azure DevOps or AWS cloud exposure

Why Join This Opportunity?

Work on enterprise-scale digital transformation initiatives

Influence design systems used across the organization

Collaborate with cross-functional teams in a modern Agile environment

Competitive compensation with flexibility

We encourage applicants from all backgrounds to apply. We value diversity of thought, experience, and perspective, and are committed to fostering an inclusive and collaborative workplace.

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.

About the Company

Seneca Resources Company, LLC, the exploration and production segment of National Fuel Gas Company, headquartered in Houston, Texas, explores for, develops, and produces natural gas in the Appalachian Region including the Marcellus and Utica Shales. Our above-and-beyond environmental stewardship includes 100% responsibly sourced gas designations, innovative technology, state-of-the-art water management, and a robust biodiversity program. Know more