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    QU

    Quantum

    Software

    Senior Full Stack UI Engineer

    Centennial, United StatesOn-SiteFull-time8+ yrs experiencePosted 3d ago
    All Quantum jobs

    Job description

    Key Responsibilities

    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.
    • Champion high code quality through thoughtful design, automated unit/integration/e2e testing, and CI/CD pipeline discipline.

    Qualifications

    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. 

    Job details are sourced from the employer's original posting.

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    QU

    About the company

    Quantum

    Quantum connects global brands with high-intent consumers, turning intent into action and complexity into clarity. Their mission is to help smarter, faster buying decisions, with a vision to be the world’s most used digital comparison service. They drive growth through data-driven affiliate marketing built for performance, with every campaign being measurable, optimized in real-time, and designed to scale. They leverage in-house technology to achieve these goals.

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