Frontend Developer, React, Angular

Job not on LinkedIn

🕒 November 21, 2025

🇵🇱 Poland – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

💻 Frontend Engineer / Web Developer

👻 Ghost score 47%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Madiff

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2015

💼 Consulting

📦 Logistics

🏥 Healthcare

Consulting • Logistics • Healthcare

Madiff is a technology and consulting company specializing in IT services and digital innovation. They provide a range of solutions, including software development, agile team services, and IT consulting across various industries. With a focus on delivering high-quality, multi-skilled remote teams, Madiff aims to enhance business performance and support clients in navigating the complexities of their respective markets.

📋 Description

• Build, refactor, and optimise UI modules in React and Angular • Translate requirements, wireframes, and UX prototypes into production ready components • Create reusable components, shared libraries, and maintain frontend architecture consistency • Optimise performance, rendering behaviour, and overall user experience • Integrate frontend applications with REST APIs and backend services • Participate in code reviews and apply clean code practices • Implement unit tests using Jest, Jasmine, Karma, React Testing Library • Collaborate with backend, design, product, and DevOps teams • Work with build tools (Webpack, Vite, NX, Lerna) • Maintain documentation and support engineering standards

🎯 Requirements

• 3–5 years of commercial experience in frontend development • Strong experience with React and Angular • Excellent understanding of JavaScript, TypeScript, DOM, and browser internals • Experience with design systems and component driven development • Solid capability with state management (NgRx, Redux, RxJS, Zustand, Jotai, Signals) • Good understanding of REST API integration patterns • Comfortable with Git in collaborative multi-branch environments • Experience writing unit tests for frontend code • Fluent English for daily work and technical documentation

🏖️ Benefits

• Solid, competitive salary • Work in multinational environment on international projects • Comprehensive healthcare • Long-term B2B contract with stable project pipeline • Fully remote model