Senior ReactJS Developer at GTEMAS

Confirmed open

This senior frontend role builds responsive React and Next.js interfaces for GTEMAS clients, with ownership of accessibility, performance and the quality of reusable UI components.

GTEMAS

Search jobs by company: GTEMAS

Location: Remote
Advertised region: VN / Vietnam
Employment: CONTRACTOR
Work arrangement: remote
Technologies: TypeScript, React

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Role overview

This senior frontend role builds responsive React and Next.js interfaces for GTEMAS clients, with ownership of accessibility, performance and the quality of reusable UI components.

Responsibilities

Build web applications with React and Next.js, including reusable accessible components and design-system elements.
Manage complex state with Redux Toolkit, Zustand or React Query; improve Core Web Vitals and SEO.
Write Jest unit tests and Cypress or Playwright end-to-end tests, and translate designs into responsive layouts with UI/UX colleagues.

Qualifications

At least five years of frontend development and strong knowledge of React Hooks, Context and internals.
Experience with Next.js rendering modes such as SSR, ISR and SSG, plus TypeScript and modern CSS approaches.
Familiarity with frontend build and performance tools, REST APIs and authorization mechanisms.

Technology in this role

TypeScript: Experience with Next.js rendering modes such as SSR, ISR and SSG, plus TypeScript and modern CSS .
React: This senior frontend role builds responsive React and Next.js interfaces for GTEMAS clients, with ownership of accessibility, performance and the quality of reusable UI .
Next.js: This senior frontend role builds responsive React and Next.js interfaces for GTEMAS clients, with ownership of accessibility, performance and the quality of reusable UI .
Playwright: Write Jest unit tests and Cypress or Playwright end-to-end tests, and translate designs into responsive layouts with UI/UX .
Cypress: Write Jest unit tests and Cypress or Playwright end-to-end tests, and translate designs into responsive layouts with UI/UX .
Jest: Write Jest unit tests and Cypress or Playwright end-to-end tests, and translate designs into responsive layouts with UI/UX .

Role-specific candidate guide

Preparation notes based on the employer’s stated responsibilities and qualifications.

Understanding the scope. This Senior ReactJS Developer position at GTEMAS is best assessed through the work described in the employer’s posting, rather than the title alone. The available role overview says: “This senior frontend role builds responsive React and Next.js interfaces for GTEMAS clients, with ownership of accessibility, performance and the quality of reusable UI components.” Read that statement together with the responsibilities below to understand the likely balance between delivery, coordination and technical decision-making. The role belongs to the software engineering area, but that label is only a guide to the work; the employer’s own requirements remain decisive. Before applying, check the original listing for reporting lines, product or team assignment, employment terms and any details that may have changed since this copy was checked. Where this page says a fact is not specified, treat it as an open question rather than an implied promise.

What the responsibilities signal. The posting specifically names “Build web applications with React and Next.js, including reusable accessible components and design-system elements.”; “Manage complex state with Redux Toolkit, Zustand or React Query; improve Core Web Vitals and SEO.”; “Write Jest unit tests and Cypress or Playwright end-to-end tests, and translate designs into responsive layouts with UI/UX colleagues.”. For each duty, identify a project where you performed comparable work and be ready to describe the context, your own contribution, constraints, decisions, and measurable result. Explain how you moved from the initial need to implementation, review, release or operational follow-through, where those stages apply. If the work involved other teams or users, distinguish your decisions from the group’s contribution. Avoid presenting a technology keyword as proof by itself: connect it to the problem you solved, the scale or complexity involved, and what changed after your work. The source may contain additional duties; review it directly before preparing your application.

How to read the requirements. The listed qualifications include “At least five years of frontend development and strong knowledge of React Hooks, Context and internals.”; “Experience with Next.js rendering modes such as SSR, ISR and SSG, plus TypeScript and modern CSS approaches.”; “Familiarity with frontend build and performance tools, REST APIs and authorization mechanisms.”. Mark each requirement as demonstrated, adjacent experience or a genuine gap, then use a concise example for the first two categories. A strong example explains what you personally owned, how you made trade-offs, how you validated the result and what you learned. If the posting specifies years of experience, language ability, certifications, location or eligibility, address those facts plainly in your CV or application rather than relying on the employer to infer them. Do not claim a qualification from exposure alone. For a requirement you do not meet, describe relevant transferable experience accurately and ask the recruiter whether it is mandatory.

Technology and working evidence.

About GTEMAS

GTEMAS (Global Tech Masters) presents itself as a global engineering partner and talent ecosystem. It connects businesses with software professionals to build digital products, scale delivery teams and support longer-term engineering partnerships. The company describes a model that combines technical assessment, structured delivery and professional development for its engineering community.

Its public materials highlight work across software engineering, quality, cloud and security, with an emphasis on measurable delivery, learning and client collaboration. A role at GTEMAS may serve a client engagement, so the specific product, customer context and day-to-day team can differ by assignment. Candidates should ask which project this vacancy supports and how responsibilities are divided between the GTEMAS team and the client.

Employer website