Stack Lead – Frontend Developer

il y a 1 semaine

Paris, Île-de-France WITCO, Inc Temps plein 60 000 € - 120 000 € par an

At Witco, we are transforming the way people experience their work environment. Our SaaS platform is used in 1,000+ buildings across 10+ countries to centralize communication, manage spaces, and enhance employee engagement.

We are now looking for a Stack Lead – Frontend Developer to drive technical excellence in one of our product squads. This is a high-impact role for someone who enjoys building clean, scalable interfaces and leading engineering initiatives.

Your Mission

As a Stack Lead Frontend Developer, you will:

  • Lead the frontend development within a cross-functional squad (PO, Designers, Backend Developers)

  • Architect, build, and maintain scalable features using React and TypeScript

  • Define and ensure application-wide frontend best practices (performance, testing, accessibility)

  • Contribute to the evolution of our design system and component library

  • Collaborate with the Engineering Manager and VP Engineering on roadmap scoping and technical arbitrations

  • Mentor junior and mid-level developers and perform code reviews

  • Collaborate with Product and UX to build intuitive and beautiful user interfaces

Our Tech Stack

  • Frontend: React, TypeScript, Redux Toolkit, Webpack, Figma, Storybook

  • Backend: (NestJS), PostgreSQL

  • CI/CD & Monitoring: GitHub Actions, Azure, Datadog, Sentry

  • Collaboration: Notion, Slack, Jira

What We're Looking For

Must-Haves

  • 5+ years of experience in frontend development, including 3+ years with React

  • Strong expertise in TypeScript, state management, and performance optimization

  • Deep understanding of component-based architectures and scalable design patterns

  • Experience with testing frameworks (Jest, Testing Library) and CI/CD workflows

  • A solid eye for design and attention to UI/UX details

  • Ability to lead by example and bring structure to frontend practices

  • Fluent French, and excellent English (our product and tech teams are international)

Nice to Have

  • Experience in SaaS or multi-tenant platforms

  • Familiarity with accessibility and internationalization best practices

  • Contribution to open-source projects or internal design systems

  • Experience in scale-up environments or managing fast-growth product delivery

Why Join Us

  • A meaningful product improving thousands of employees' daily life

  • A collaborative and talented team in central Paris

  • Direct impact and ownership over your domain

  • Tech culture that values quality, autonomy, and knowledge sharing

  • 1–2 days remote per week, training budget, health insurance, Lunch card

Hiring Process

  • HR Interview - 30 min

  • Technical interview – 1 hour

  • Live Case + debrief – 1 hour

  • Team Fit – 1 hour

  • Final Interview - 1 hour

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