Full Stack UI Engineer

QUANTUM USA, LLP
Englewood, CO, United States
4 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
8 years minimum
Working hours
Regular working hours
Job source

Tech stack

JavaScript (Programming Language) PHP (Programming Language) Adobe InDesign Application Programming Interfaces (APIs) Amazon Web Services Amazon Elastic Compute Cloud Application Performance Management HTML5 Browser Compatibility Cascading Style Sheets (CSS) Cloud Computing Software Quality
+48 more
Code Review Databases Computer Engineering Data Transformation Relational Databases Software Debugging DevOps Design of User Interfaces Python (Programming Language) Laravel PostgreSQL MySQL Node.Js Performance Tuning Scrum Methodology Query Optimization Role-Based Access Control Redis Prometheus Responsive Web Design TypeScript Web Applications Web Services Cloud Platform System Okta Time Series Databases ReactJS Grafana Software Security Caching Technical Debt Backend Git Vue.js Data Layers Amazon Relational Database Service Containerization Gitlab-ci Material UI Kubernetes Information Technology Figma Graphql Data Management Front End Software Development Amazon Simple Queue Service (SQS) Api Management Docker

Job description

Full-Stack Architecture & Development

  • Design, architect, and develop modern web applications using React, TypeScript, and Vue.

  • Build and maintain Backend-for-Frontend (BFF) and API services (REST and/or GraphQL) that aggregate, adapt, and optimize back-end data for UI consumption.

  • Translate UI/UX requirements into efficient back-end data models, API contracts, and service boundaries.

  • Define and evolve front-end and BFF architectures with a focus on performance, scalability, security, and maintainability.

Front-End & Design System Collaboration

  • Collaborate with UX and product teams to translate Figma designs into high-quality, reusable UI components aligned with shared design systems and component libraries.

  • Drive UI performance optimization, accessibility, and cross-browser compatibility.

  • Contribute to and consume shared component libraries across React and Vue ecosystems.

Cloud Infrastructure & Reliability

  • Architect and maintain back-end infrastructure in AWS (EC2, RDS, SQS, SES, ECR) and containerized environments (Docker, Kubernetes).

  • Own and improve API performance through caching strategies, query optimization, and efficient data transformation.

  • Respond to production incidents in a timely manner and contribute to observability, monitoring (Prometheus/Grafana), and reliability initiatives.

Back-End Security

  • Integrate authentication and authorization using identity platforms such as Keycloak, including SSO and role-based access control.

  • Build secure, maintainable server-side functionality and contribute to security tooling across UI and back-end layers.

Data Management

  • Design, evolve, and optimize relational database schemas (PostgreSQL, MySQL) and caching layers (Redis) in support of UI-centric use cases.

  • Ensure data consistency, integrity, and performance across services.

Technical Leadership

  • Lead code reviews, establish best practices, and ensure consistent engineering standards across front-end and back-end layers.

  • Mentor junior and mid-level engineers and contribute to raising the overall quality bar of the team.

  • Participate actively in design reviews, sprint planning, and cross-team technical discussions.

Quality & Testing

  • Proactively identify technical debt and lead refactoring or modernization efforts.

Requirements

Required

  • Experience: 8+ years of professional experience building full-stack, user-facing web applications, including ownership of production services.

  • Front-End: Strong hands-on experience with React in production environments; advanced proficiency in JavaScript, TypeScript, HTML5, and CSS3.

  • Back-End & APIs: Experience designing and implementing UI-focused back-end services (Node.js, Python, PHP, or similar) using REST and/or GraphQL.

  • Databases: Strong experience with relational (PostgreSQL, MySQL) and time series databases (Prometheus).

  • Cloud & DevOps: Experience working in cloud environments with containerization and orchestration.

  • UX Collaboration: Experience working closely with UX teams and implementing designs from Figma or similar design tools.

  • Accessibility: Strong understanding of responsive design, accessibility standards, and browser compatibility.

  • Tooling & Testing: Solid experience with Git, GitLab CI/CD, and modern automated testing frameworks.

  • Debugging: Strong debugging and troubleshooting skills across front-end, API, and data layers.

  • Ability to work effectively in a collaborative, in-office engineering environment.

Preferred

  • Experience with the Laravel framework in PHP.

  • Familiarity with identity/auth platforms and API security patterns.

  • Background in storage, infrastructure, or data-intensive/enterprise-scale systems.

Education

  • Bachelor’s degree in Computer Science, Computer Engineering, or a related field (or equivalent practical experience).

Soft Skills

  • Strong technical leadership and problem-solving skills.

  • Clear and effective communication with both technical and non-technical stakeholders.

  • High attention to detail and a strong commitment to code quality.

  • Ability to influence technical direction and inspire best practices across the team.

  • Comfortable balancing hands-on development with mentorship and technical leadership.

Apply for this position

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Apply on www.juju.com
Prepare application

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

4:18 min

Prioritizing communication and structural awareness over strict tool mastery

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Jonathan Creamer · Coffee With Developers

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Implementing custom component libraries with Figma

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Architecting single sign-on flows across multiple application domains

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