Senior Backend Engineer

JOIN helps thousands of businesses find the right people — faster, fairer, and with less friction. Our platform handles millions of candidate interactions, and our clients praise JOIN’s attention to detail and unmatched user experience.

As our Backend Engineer in Barcelona, 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.

Your work will directly impact how thousands of companies and candidates experience hiring. Here’s what that looks like:

• →Collaborate with frontend engineers, product managers, and DevOps/platform teams to build meaningful features through our Agile SDLC/Kanban workflow.
• →Conduct peer code reviews and contribute to retrospectives to drive continuous improvement.
• →Define technical requirements and identify the best solutions to meet team goals.
• →Participate in engineering retrospectives focused on testing, architecture, automation, and coding standards.
• →Always think beyond the code - you’ll focus on delivering value and improving the user experience for our customers.

You’ll join our Backend Guild, collaborating closely with Product, Platform, DevOps, and Frontend teams. We care deeply about quality, performance, and a great developer experience – supported by clean architecture, code generation, linters, templates, and test-driven development.

We don’t believe in checklists - but if most of these apply to you, we’d love to chat:

✔ 5+ years of backend development experience.

✔ 2+ years of experience with a strongly typed language or TypeScript.

✔ Strong experience with RDBMS (raw queries or via ORM).

✔ Solid background in unit and integration testing.

✔ Experience with message brokers (SNS, RabbitMQ, Kafka, Google Pub/Sub, etc.).

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

🏆 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.

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!