Senior Full Stack Engineer (Frontend & BFF Focus)

Senior Full Stack Engineer (Frontend & BFF Focus)

Location: Bothel, WA
Employment Type: Contract 
Candidate Location = Candidate should be local to Bothel, WA  (In-person interview is a must)
Permanent Residents and USC

Role Overview

We are seeking a Senior Full Stack Engineer with strong expertise across Frontend (UI) and Backend-for-Frontend (BFF) layers. This role is responsible for building scalable, secure, and high-performance web applications using modern frontend frameworks and backend integration patterns.

The ideal candidate is a hands-on engineer who partners closely with UX/UI, Architecture, and Platform teams, applies modern engineering practices, and delivers enterprise-grade, customer-facing solutions.

Key Responsibilities

Frontend & BFF Development

• Design and develop frontend UI components using React.js, Next.js, and TypeScript

• Build and maintain Backend-for-Frontend (BFF) layers using Java, JavaScript, Node.js, REST, GraphQL, or MuleSoft

• Develop responsive and adaptive web applications optimized for multiple devices and browsers

• Apply Micro Front-End architectures where applicable

UX & Performance Engineering

• Collaborate closely with UX/UI Designers to deliver intuitive, high-quality user experiences

• Implement engineering best practices to ensure high-performance, browser-friendly web solutions

• Continuously improve website and application performance using monitoring tools such as Dynatrace, Quantum Metric, Splunk, and similar platforms

Engineering Excellence

• Design, code, test, debug, and document new and existing components

• Build high-quality, secure, and maintainable code using:

  • Unit testing

  • Test-driven development (TDD)

  • Security-driven development

• Implement all critical Non-Functional Requirements (NFRs), including:

  • Scalability

  • Security

  • Availability

  • Performance

• Troubleshoot and resolve code-level issues quickly and efficiently

Architecture & Collaboration

• Partner with Enterprise and Application Architecture teams to contribute to solution design and technical architecture

• Apply deep technical expertise to solve complex programming and design challenges

• Actively participate in Agile/Scrum processes, including sprint planning, user story creation, and code reviews

AI-Assisted Development

• Effectively leverage GitHub Copilot across the SDLC for:

  • Pair programming

  • Unit and automation test generation

  • Writing user stories and improving developer productivity

Required Technical Skills

Frontend

• React.js

• Next.js

• TypeScript

• Micro Front-End Architecture

• HTML5, CSS3, Bootstrap.js

• JavaScript, XML

Backend / BFF

• Java and/or JavaScript

• Node.js

• RESTful Services

• GraphQL

• Spring Boot

• MuleSoft (preferred)

Data & Integration

• NoSQL databases (MongoDB, Cassandra)

• Kafka / MQ

• Redis

Cloud & DevOps

• Azure and/or AWS cloud environments

• Docker, Kubernetes

• Jenkins, Git, Jira

• CI/CD pipelines

Monitoring & Observability

• Splunk

• Dynatrace

• Prometheus / Grafana

Additional

• AI and Machine Learning exposure (preferred)

• Strong understanding of security best practices and enterprise NFRs

Preferred Qualifications

• Experience building enterprise-scale web platforms

• Strong understanding of frontend performance optimization

• Hands-on experience with GraphQL-based BFF architectures

• Experience working in high-availability, regulated, or large-scale environments