kloeckner.i GmbH
Zinnowitzer Strasse 8
10115 Berlin


Type: Full time
Level: Professonals, Experienced
Department: IT
Workplace: Berlin
Hours: 38,5

Please apply online:
(only takes about 5 min)

Birthe Alsmoeller | HR Manager

Do you have any questions?
Contact me!
0173 48 92 805

Senior Full Stack Developer (m/f/d)
Workplace: Berlin

About us

At kloeckner.i we believe in challenging the status quo. We believe in thinking differently. The way we do it is by building products that well designed, simple to use and user friendly. We build these products for the steel industry by using digital transformation and unique innovations to ensure that our parent company Klöckner & Co is the most client-centric player on the market.

About the role

  • We are building products for external customers of Kloeckner as well as internal products
  • Together with your cross-functional team colleagues you are looking into complex and challenging problems within the steel and metals industry
  • We work in an agile way to collaboratively achieve the development goals our platform and customers
  • You collaborate with your team members and ensure high products quality (via code reviews and merge requests)
  • You stay up to date with latest technologies and validate their usage within our existing tech stack
  • You identify with our Tech team values of Pragmatism, Teamwork, Playfulness and Trust

Technologies and platforms we currently use

  • Ruby (+ Rails), Elixir (+ Pheonix)
  • Tools: Gitlab, Jira, Confluence, Continuous Integration
  • Google Cloud, Docker, Kubernetes
  • Interfaces: JSONAPI, GraphQL, RESTful APIs
  • Elasticsearch, Redis, PostgreSQL, RabbitMQ

Your background

  • You have working experience in developing online platforms using Ruby or Elixir
  • You have a hands-on mentality (while respecting our agile development methods), and you love sharing your knowledge and learnings with your team members
  • You have a pragmatic approach. Your analytical skills help you to distinguish the essential from the non-essential, so you can focus on what truly matters for our customers
  • You are willing to contribute to an enjoyable and outstanding engineering culture at kloeckner.i
  • Our company language is English and you also should be able to understand and translate business requirements

We offer

  • Vacation entitlement of 30 days per year
  • A start-up culture with a great team spirit, open communication and hands-on mentality
  • Working within an international team of 30 engaged engineering peers
  • Challenging assignments and interesting problems to solve
  • An honest feedback culture and transparent decision-making channels
  • Attractive and competitive compensation models
  • A central office location in Berlin (Mitte) with convenient public transport options

Sound good? Send us your application online (you do not need to include a cover letter or have your picture in your CV), and we’ll get back to you soon.

About the Klöckner & Co Group

Klöckner & Co is one of the largest producer-independent distributors of steel and metal products and one of the leading steel service center companies worldwide. Based on its distribution and service network of around 170 locations in 12 countries, the Group supplies more than 130,000 customers. As a pioneer of the digital transformation in the steel industry, Klöckner & Co’s target is to fully digitalize its supply and service chain and to support the launch of an independent open industry platform, which shall become the dominant vertical platform of the steel and metals industry. Currently Klöckner & Co has around 8,800 employees. The Group had sales of around € 5.7 billion in fiscal 2016.