Senior Next.js UI Developer

Sparc Technology Services Inc

Irving TX, TX

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JOB DETAILS

SKILLS

Agile Programming Methodologies, Application Programming Interface (API), Authentication, Best Practices, CSS (Cascading Style Sheet), Caching, Computer Science, Continuous Deployment/Delivery, Continuous Integration, Debugging Skills, DevOps, Error Handling, Git, Information Technology & Information Systems, Internet Application, Internet Security, JavaScript, Microsoft .NET, Microsoft Windows Azure, Network Routers, OAuth, Performance Tuning/Optimization, REST (Representational State Transfer), React.js, Reliability Engineering, Sales Management, Scalable System Development, User Experience Design (UXD), User Interface/Experience (UI/UX), Web Browsers, Wireframes

LOCATION

Irving TX, TX

POSTED

30+ days ago

Job Title: Senior Next.js UI Developer
Job Location: Phoenix AZ/ Irving TX – 5 days Onsite
Job type: Contract/ C2C

Need an experienced Next.js UI Sr. Developer to join our engineering team. The ideal candidate has strong front end expertise, deep knowledge of React and Next.js , and experience building high performance, scalable, and secure user interfaces. You will collaborate closely with backend engineers, and designers to deliver modern and responsive applications.

Key Responsibilities

Develop, maintain, and optimize web applications using Next.js, React, and modern UI frameworks.
Build reusable UI components, layouts, and design system compliant interfaces.
Work with REST APIs or internal services and manage client‑side/server‑side data flows.
Use state management solutions such as Zustand, Redux Toolkit, or TanStack Query (React Query).
Implement SSR/SSG/ISR strategies for performance, and scalability.
Ensure responsiveness, accessibility, and cross‑browser compatibility.
Implement secure authentication and authorization flows (e.g. MSAL, OAuth).
Implement client side error logging and monitoring to improve application reliability
Collaborate with UX designers to convert wireframes into smooth user experiences.
Write unit, integration, UI, and E2E tests using Jest, Testing Library, and Playwright.
Follow CI/CD pipelines and deployment workflows (e.g., Azure DevOps or container‑based deployments).

Required Skills & Experience

Strong proficiency in JavaScript, TypeScript, React, and Next.js.
Hands‑on experience with Next.js App Router, routing, layouts, and data‑fetching patterns.
Solid understanding of modern UI/CSS frameworks: Tailwind CSS, Coin Base Design System(CDS)
Strong understanding of web performance optimization, caching, prefetching, in modern apps
Experience with Git, branching strategies, and agile development environments.
Knowledge of web performance and security best practices
Strong understanding of error handling, logging, and debugging strategies
Experience integrating with .NET backend services or SignalR (real‑time updates).

Education Required::
• Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent practical work experience.

About the Company

Sparc Technology Services Inc

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