English - Upper Intermediate
OopVue.jsAdvertisingWeb DevelopmentAngularJSSoftware DevelopmentDesignDevelopmentJavaScript


About Us:

Simplaex is the company behind the world’s most advanced Artificial Intelligence-powered targeting technology. The platform provides solutions for the programmatic advertising ecosystem to reduce complexity, create a new kind of transparency, and to boost performance across the full bandwidth of the value chain. Simplaex processes tens of Terra Bytes a day, generates unique insights through machine learning and allows for sub-second querying in a high-throughput and low-latency environment.

About You:

We are looking for a kick-ass JavaScript Engineer, who cares about quality code and understands the meaning of a true intuitive user experience. She or he is able to deliver a large-scale feature-rich app and browser addons; Is excited to build an amazing AI solution for programmatic publishers. The role involves working with cutting-edge technologies in a large scale distributed system which includes (real!) big data and high throughput environments.


  • Develop low-latency, high-scale client side javascript code for Real-Time bidding solutions.
  • Take part in every step of the system development life cycle of our frontend.
  • Work closely with the other team members and brainstorm ideas in an agile and open minded environment that will welcome your inputs with enthusiasm.
  • Have fun working


  • At least 5 years of experience with Javascript (aka VanillaJS), browsers and Javascript ecosystem.
  • Familiar with OOP, FP, Design Patterns, Javascript static typingExperience in agile software development, continuous delivery and automated testing.
  • Experience with modern Javascript frameworks (Angular, React, Vue, AngularJS etc.) – an advantage.
  • Experience with server-side web development – an advantage.
  • Independent, fast learner, highly motivated and with strong problem solving skills.
  • Team player, patient and adaptive to changes

What we offer you:

At Simplaex we believe in ownership, productivity, mutual respect and freedom to do the things we need to do. Each team member has a large degree of autonomy to accomplish his or her tasks and can rely on others for help, guidance and support. Our team enjoys a highly professional atmosphere and an environment where a good laugh is always welcome.

  • Bright and stylish office in the heart of Berlin.
  • Diverse and international team with over 15 nationalities.
  • Base salary corresponding with experience and responsibilities.
  • Stock options program.
  • Free fruits, snacks, drinks and strong coffee.