Android Developer (Kotlin)

  • Technology
  • Amsterdam, Netherlands

Android Developer (Kotlin)

Job description

We consider the mobile team within Fourthline to be the Power Rangers! But our team of 6 rangers (5 developers and our PO) feels incomplete and cannot ‘morph’ our SDK into complete sync! That means we are looking for you as our third Android developer to work with Vadym and Sergii. You have great skills in Kotlin and worked with the latest frameworks, you know a lot about unit testing and you write clean code. And almost without saying... as Power Ranger you are a great team player!


Current situation: “oh nohhhh, we cannot morph”

But when you join and we are completely in sync we can save the city from all monster attacks again!

Near future: “Party time... uhhh time to get to work...”


Your mission

Next to saving Angel Grove (the city) you will continue to build a kickass SDK that will influence the lives of millions of users! Flawless on-boarding while opening a new bank account is what we bring to our clients! Therefore, we need your karate skills for:

  • Our SDK version 2. A current project where we improve production and integration for our clients (also alignment with iOS app)
  • Improve overall testing and the unit testing coverage to 80-90% (not nearly there!)
  • Improve customer satisfaction (no escalations, thorough testing, higher session quality)
  • Integration of more AI functionalities in the SDK (Google Vision Frameworks from Kotlin)
  • NFC technology should be fully integrated in our SDK
  • Working on our demo app to commercialize this awesome product!


Why do you want to work here?

  • Working with latest tech in Kotlin and some Computer Vision frameworks
  • A super strong team with senior skills. Vadym + Sergii (awesome Android devs), Denys + Vlad (great iOS devs), Eduardo (best team lead) and Dea (awesome PO) that can help you grow and the other way around!
  • Keen eye on your career development and personal growth
  • The freedom to make choices in our tech, roadmap and architecture
  • Your fruit of labor will be used by many consumers and customers
  • ...and... Who didn’t want to be a power ranger when we were young?


The tech we use

  • Language: Kotlin, Java
  • Distribution: Maven, Gradle, GitHub, Azure DevOps
  • Frameworks: Google Mobile Vision Framework, NFC, OCR, Facial Detection, Firebase ML kit,
  • Libraries: Coroutines (Kotlin), RxJava
  • Unit testing: JUnit, Mockito, Espresso frameworks
  • Methodology: Agile/Scrum, CI/CD,
  • Also: Architecture patterns, MVVM, MVI, camera related technology, image analysis and processing

Job requirements

Or required Power skills...

  • +4 years of experience as developer (mostly mobile)
  • Great working knowledge on the more recent Kotlin versions and Android frameworks.
  • Team player mentality. We are Power Rangers after all
  • Great understanding about clean code and unit testing (very important to us)

    Nice to haves are:
  • Understanding of computer vision techniques
  • Background in Java
  • Agile understanding and way of working
  • Backend oriented attitude, since we work on an SDK, we almost have no UI work (apart from the demo app).

**We highly prefer people living in the Netherlands already. We will not relocate candidates for this position, and are only able to provide VISA support for those already in the Netherlands.**


What we offer

At Fourthline, we care about attracting and retaining the best people. We work with the most modern technology and...

  • While the Power rangers worked for free, we will pay you a very good salary
  • The chance to work on the forefront of cutting-edge technology, teaming with the biggest names in fintech and banking;
  • An opportunity to work for a multinational scale-up that is growing rapidly (1,000% growth over 3 years);
  • Opportunities to match your ambitions: Your ideas will be needed so that together we can become the biggest and best online identity provider in the world (whilst releasing other new products!);
  • 25 days of vacation to recharge your batteries;
  • A workplace in our fun office right next to the beautiful Vondelpark in Amsterdam;
  • Daily catered, fresh and tasty lunch with your colleagues (when allowed again);
  • After-work drinks in our very own bar on Fridays (when allowed again);
  • High degree of collaboration and autonomy;
  • Crucial role in a highly motivated, talented team that will grow a lot;
  • Flat structures and open communication;
  • Ping pong / darts / table football, because it is fun (when allowed again);
  • Four office dogs (current count).

"And just in case you didn't know what we meant with morphing"

Hope you liked to read this vacancy and still want to apply! We would love to talk to you!

<<<for this role we will not relocate people outside of EU (not offering sponsorship) and we prefer a person that is in Amsterdam already>>>