Job Opportunities in the Seedcamp Portfolio

During the last two years we crafted a product with solid basis to create, deploy and track Web Stories over the web. Now is the time for us to bring our App services to the next level by adding new features that will meet and anticipate our clients needs.

As a Junior Mobile Engineer, you will be committed to our core App projects. You will be actively participating in the development of new features and will be responsible for crafting polished user experiences and state-of-the-art app-based solutions.

Accompanied by Maxime, our Senior Mobile Engineer, you will have the opportunity to quickly develop your skills in:

Development of New Features – 60%

Contribute to the development of new features across SDKs, internal/demo applications, and more broadly on mobile topics:

• Develop new product features on Android (Kotlin) and/or iOS (Swift).

• Implement UI enhancements using Android Views / Jetpack Compose or UIKit / SwiftUI.

• Deliver technical and functional fixes on existing components.

• Contribute to technical micro-design topics, feasibility studies, or proof-of-concepts (POCs).

• Support the development of internal tools for development, debugging, and SDK validation.

Testing, QA & Validation – 30%

Test new features prior to release and help improve the overall reliability of mobile releases:

• Execute functional tests on features.

• Ensure no regressions on key user journeys.

• Reproduce bugs reported internally or by clients.

• Analyze observed behaviors using logs, devices, and simulators/emulators.

• Clearly document bugs, reproduction steps, and expected results.

• Contribute to progressively structuring non-regression test scenarios.

• Recommend the most relevant checks prior to releases.

Delivery & Release – 10%

Contribute to the preparation and reliability of mobile deliveries:

• Ensure that topics are ready for delivery from a code, QA, and validation standpoint.

• Participate in final checks before release.

• Support the smooth delivery of SDKs and other mobile-related topics.

• Contribute to improving release workflows, validation checks, and overall delivery reliability.

• Participate in the continuous improvement of mobile tools and ways of working.

🎁 What we offer

• RTT days: every employee gets up two weeks of RTT

• Delightful healthcare insurance with Alan (100% coverage)

• Swile Card for your lunches (60% paid by JOIN)

• ClassPass: subscription for free classes and activities every month

• All the tools you need: Macbook Pro & noise-cancelling headphones.

• Monthly activities supported by JOIN (climbing, bowling, virtual reality activities, ice skating, etc.).

• Office: office space in the heart of Paris (”Bonne-Nouvelle” metro station).

💫 Our Culture & Values

At JOIN, our culture is the cornerstone of our success! We’re committed to providing a healthy, caring environment in which all our JOINers can flourish. To achieve this, we have 3 fundamental values that we embody on a daily basis and bring to life through a wide range of rituals:

1️⃣ We Care for individuals and embrace collective work

2️⃣ We dare, Persevere and learn

3️⃣ We build trust through Transparency

Want to know more about our core values? Discover ourCulture Book now!

🦾 You are a great match if you …

• … have 0-2 years of experience as a Mobile Engineer.

• … have a first experience on Android (Kotlin) or iOS (Swift).

• … are a team player: you value communication and you know how to work together with your colleagues, whether they are technical or not.

• … show initiative and proactivity: you anticipate needs, you feel like proposing new ideas and putting them forward.

• … are passionate and curious: you are open-minded and you like to discover, learn and understand.

• … are rigorous and self-organized.

1️⃣ 30min call with Mélinda, our Talent Acquisition Manager, to make sure our expectations are aligned.

2️⃣ 1h30 live coding with Maxime, our Senior Mobile Engineer, to assess your skills.

3️⃣ A 30-minute reverse interview, giving you the opportunity to ask any questions about JOIN, our challenges, and our environment.

4️⃣ Culture meetings: A final on-site meeting to meet the team and discover our company culture.

🤩 Sounds like you?

Then we should probably meet! Start with sending us an overview of your background (either a resume or a LinkedIn profile), as well as a short note to tell us why we’re a great fit for each other. We’ll review your application and get back to you quickly!

If you still have any doubts, don’t hesitate to discover our Tech Team Presentation, to learn more about how we work!