Senior Frontend Engineer (ReactJS) (f/m/d)

Why this role matters

At JOIN, we believe hiring should be easy, fast, and fair - for companies and candidates alike. That’s why we’re building intuitive, powerful recruiting software that helps businesses of all sizes find the right people effortlessly.

As our Frontend Engineer in Berlin, you’ll join us at an exciting moment: the launch of our new office in Spain! You’ll play a key role in shaping the future of our product and platform, working with a modern tech stack to deliver robust, scalable features. This isn’t just another job – you’ll be part of building a new engineering hub from the ground up.

Tasks

Collaborate with backend engineers, product managers and DevOps/Platform teams to create meaningful features for our customers through our custom-made work methodology Agile SDLC/Kanban.

• Conduct peer code reviews and attend project retrospectives to discuss and execute improvements as a team.
• Help define the requirements and propose the best way to achieve the team goals.
• Participate in technical retrospectives to discuss testing culture, architectural solutions, automation topics, coding standards, and many more!
• You are not “just” a coder — you are empowered to and always thinking about the product value that you can bring and how to improve the experience of our customers

YOUR FUTURE TEAM

• Our mission as Frontend Guild is to provide JOIN’s customers and their candidates with a smooth UX experience, simplified and beautiful UI, and rich functionality to achieve their goals by using our data-rich capabilities.
• We strongly believe that Frontend engineering should be collaborative with product and design teams, that our UI is diverse and has accessibility and security in mind.
• We take care of our guild’s tools by building a robust and Figma-synced Design System, code generators and coding conventions to create consistency, avoid wasting time on scaffolding and clutter, and focus on the business logic and customer value.
• Stability is our utmost priority, hence we write E2E tests for all scenarios and optimize performance to make our product feel a bliss to use.

Requirements

Requirements

• 5+ years of frontend development experience using frameworks and UI libraries
• 2+ years of development experience in React.js and Redux
• 2+ years of experience with TypeScript
• 2+ years of experience with GraphQL

Nice to have:

• Experience with JS/TS linters, webpack, babel, or other bundle/configuration management
• Experience with Cypress, Selenium or other E2E frameworks
• Experience building Design System components using Storybook or other frameworks
• Experience building Monorepo apps

Our engineering culture:

• We work with modern technologies: React.js, TypeScript, GraphQL, gRPC, Google Pub/Sub, Kubernetes.
• We believe in automation. We automate anything and everything that can improve our productivity and focus.
• We write our tests and we test our own solutions, which helps us learn more and understand our clients better.
• We value transparency, close collaboration, and a slight amount of chaos in our work because it makes us faster and more creative.

Benefits

Our Values

❤️ People First – We put humans at the heart of hiring.

Own It – We take initiative and solve problems independently.

Work Smarter – Efficiency beats effort.

Be Bold – Challenge the status quo and push boundaries.

At JOIN, we thrive in a fast-moving, collaborative environment, and we’re looking for people who do too. That means:

• We follow a hybrid model (3 days office, 2 remote) to promote collaboration.
• We adapt quickly and embrace change.
• We continuously challenge ourselves and each other to improve.

This role might not be ideal if:

• You prefer a highly structured environment.
• You want a fully remote position.
• You prefer minimal change and a slower pace.
• You’re not excited about ownership and growth.

What’s in it for you?

Apple hardware – The best tools for the job (M3 Pro MacBook Pro).

Team events – Brunches, sports activities, and quarterly gatherings in Berlin.

Productivity from Everywhere – 104 days per year remote (post-probation), following our hybrid policy.

Competitive salary – Tailored to align with your experience level.

Relocation support – Assistance with paperwork, travel, and one month of furnished accommodation.

‍ Be one of the first hires in our Barcelona office and shape the culture and future of the team.

What to expect from the hiring process

We respect your time and keep things transparent:

1️⃣ Intro call (~30 min) – Let’s see if we’re a good match.

2️⃣ Hiring Manager Review – Your profile is assessed for technical and team fit.

3️⃣ Hiring Manager Interview (~60 min) – Dive into expectations and team dynamics.

4️⃣ Technical Interview (~60–120 min) – Demonstrate your skills.

5️⃣ Meet the Team (Optional) – Connect with your future colleagues.

You’ll always know where you stand - no black holes, no ghosting.

We welcome applications from individuals of all ages, abilities, genders, religions and diverse backgrounds. If you need assistance during the hiring process or in the workplace, let us know!

Don’t meet every requirement? No problem! We’re always open to exceptional candidates and value diversity in all forms.

Apply now – We’d love to connect with you!