Senior React Developer

mühlemann+popp AG; Warszawa; Hybrid; PLN 199,000 - 284,000; Full time

Benefits offered by this job

Medical & Sport budget

Birthday bonus

Loyalty bonus

Summer camp

Job summary

mühlemann+popp AG in Warsaw is seeking a versatile Frontend Engineer to architect and build modern web apps using React and Vue in a hybrid Warsaw setting. You will focus on AI-enhanced user experiences, integrating AI backends and tools to accelerate delivery.

Responsibilities include crafting scalable frontend architectures (Next.js, Nuxt.js) with TypeScript, real-time features, and performance optimization, while collaborating with designers and backend engineers in a cross-functional team.

Qualifications

• Production experience with modern web applications using React and Vue.
• Proficiency in TypeScript, generics, and type safety.

Responsibilities

• Architect and build modern web applications in React and Vue.
• Collaborate with design and backend engineers to define API contracts.
• Integrate AI capabilities into frontend user products.

Skills

React

Vue

TypeScript

AI tooling

Architecture

Next.js

Nuxt.js

Tailwind CSS

Storybook

WebSockets

TanStack Query

Pinia

Zustand

React Query

Docker

Tools

Claude Code

Cursor

Job description

Frontend Developer (React & Vue) - Hybrid / Warsaw

Warsaw (Hybrid) | AI-Augmented Workflow

Who we are

mühlemann+popp (m+p) is a digital company builder based in Zurich. Since 2010, we have been launching and scaling web-based companies—including sobrado.ch, bontique.ch, evenito.com, andrealmatch360.ch.

Our team of ~50 operates out of Zurich, Bucharest, and Warsaw. We prioritize pragmatic engineering, clean architecture, and product ownership. We don’t just build software; we build businesses.

The Role

We are looking for a versatile Frontend Engineer to join our Warsaw hub. You will architect and build modern web applications, moving fluidly between React and Vue. Most of our current pipeline involves Travel, Real Estate, and Healthcare, with a specific focus on integrating AI capabilities directly into user products. You won't just be coding interfaces; you will be defining how users interact with AI-driven backends. We also believe the future of coding is AI-assisted. We expect you to leverage tools like Claude Code and Cursor to move faster and focus on high-level architecture rather than boilerplate.

What You’ll Build & How

• Architecture: Develop scalable frontend architectures using React (Next.js) and Vue (Nuxt.js) with TypeScript.
• AI-First Workflow: Utilize AI tools (Cursor, Claude Code, V0) to accelerate feature delivery, refactoring, and testing.
• UI/UX: Translate designs into performant interfaces using Tailwind CSS and maintainable component libraries (Storybook).
• Real-Time Data: Implement real-time state management and data synchronization (WebSockets, TanStack Query) for dynamic user experiences.
• Performance: Optimize Core Web Vitals, accessibility (a11y), and rendering performance.
• Collaboration: Work in a hybrid setup with designers and backend engineers to define API contracts and product logic.

What You Bring

• Production Experience: Strong portfolio of modern web applications. We value React and Vue equally and look for developers adaptable enough to work with both.
• TypeScript Fluency: You don't just use any; you understand generics, utility types, and type safety.
• AI Literacy: You are comfortable using AI coding assistants (Cursor, Claude Code, etc.) as a daily driver to enhance productivity.
• Modern CSS: Deep knowledge of modern layout techniques (Grid/Flexbox) and utility-first styling (Tailwind).
• State Management: Experience handling complex client-side state and async data (e.g., Pinia, Zustand, React Query).
• Engineering Standards: A pragmatic mindset toward CI/CD, containerization (Docker), and code quality.

Nice-to-Haves

• Mobile development experience (Flutter or hybrid wrappers like Capacitor).
• Experience interacting with GraphQL APIs.
• Familiarity with Cloud Infrastructure (GCP/Azur) or Terraform.
• Design literacy (Figma).
• Open-source contributions.

The Offer

• Location: Hybrid role based in Warsaw
• Contract: B2B or Business Incubator. - guaranteed load with 30 notice period.
• Rate: Up to €40/h (approx. €6,000/month gross)., depending on skill level
• Perks:
  • $77/month Medical & Sport budget.
  • $100 Birthday bonus.
  • $1,000 Loyalty bonus (after 3 years).
  • Annual Summer Camp (European cities/beach locations).
• Growth: 3 dedicated education days/year + budget for courses and conferences.
• Warsaw Hub: Monthly team lunches, spring events, and year-end dinners.

Why m+p?

Because we useAI tools not just to build products- to evolve how we work.

Because we value output and impact over Jira tickets.

Because we are small enough to move fast, but established enough to build things that last.

Note: Your application will be processed by AI.