Ground every answer in facts on this page and the original listing. We never invent Glassdoor-style reviews or salaries that are not in our data.
Prepare live React coding, component design, state/data-fetching tradeoffs, and debugging UI performance. Expect product questions about two-sided marketplaces (devs vs companies) and why you want in-office Jozi work. Have examples of mentoring and production incidents.
Strong fit if you are a senior React engineer who wants on-site Johannesburg work at a SA tech marketplace company. Weaker fit if you need remote or pure backend roles. No salary or review scores are in the source data—confirm package and stack in interview.
As a Senior React Engineer on site at OfferZen in Johannesburg, expect deep frontend ownership: component architecture, performance, design-system quality, and production debugging. Days mix pair reviews, shipping product for a hiring marketplace, and mentoring. In-office collaboration with product and design is the default—not remote.
Prioritize React (hooks, concurrent patterns), TypeScript, testing, accessibility, and performance. No certification list or costs were provided for this family—skip paid certs unless OfferZen asks; ship portfolio-grade UI and system design instead.
No. The listing is Johannesburg, in office (remote flag 0).
It is described as a curated marketplace matching top SA developers with top companies.
Not in the supplied data. Ask OfferZen directly for comp and stack details.
Senior React Engineer - Johannesburg (In office)OfferZen, Johannesburg, Gauteng What This Role Involves The role of a Senior React Engineer at OfferZen involves leading complex projects and mentoring junior engineers. You will be responsible for designing and implementing robust front-end solutions that enhance user experience across our platform. Your expertise in React and related technologies is crucial to driving the development of innovative web applications. What You'll Do Lead the design and implementation of high-performance, scalable React components and applications. Mentor junior engineers, providing technical guidance and best practices. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the highest standards of code quality, maintainability, and performance. Who We're Looking For We are seeking a highly skilled Senior React Engineer who can bring their expertise in front-end development to our team. You should have at least 5 years of experience with React and a strong understanding of web technologies. A passion for solving complex problems, a commitment to code quality, and the ability to work effectively in a collaborative environment are essential. Minimum 5 years of professional experience as a Senior React Engineer Strong knowledge of React.js, JavaScript, and related libraries/frameworks Experience with state management tools like Redux or MobX Familiarity with RESTful APIs and server-side technologies (Node.js preferred) Aptitude for writing clean, maintainable code Excellent communication skills and a team player mindset Working at OfferZen At OfferZen, we believe in creating an inclusive and supportive work environment. Our tech stack includes modern tools and practices to ensure our engineers can focus on delivering high-quality products. We offer competitive salaries and benefits packages that align with industry standards. How to Apply To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there. Please ensure all relevant details are provided for a smooth process.
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