Senior JavaScript Developer

Warsaw, Poland

Striving for excellence is in our DNA. Since 1993, we have been helping the world’s leading companies imagine, design, engineer, and deliver software and digital experiences that change the world. We are more than just specialists, we are experts.


Currently we are looking for a Senior JavaScript Developer for our Warsaw office to make the team even stronger.

As part of the team, you will be working on a platform for Structured Investments (for both Broker-Dealer and Private Banks). Work consists of both, improving existing system (though system is brand new) and introducing new functionality, new screens, etc. Example of the new task – add secondary market (the ability to buy and sell investments). In fact, we work directly with sales group, who define requirements. For them this is a product, which they use to provide functionality to clients. The platform is not self-purpose. It is a way to sell new service and generate revenue. In that sense, we are doing product development. We are also involved in UXD part.

Our client is the leading global investment banking based in the USA. Technology used on the project: Scala, MongoDB, Akka, nginx, Backbone.js, Protractor.


  • Work with requirements;
  • Be responsible for code development and refactoring;
  • Conduct code review;
  • Write regularly Unit and Integration Tests;
  • Fix bugs;
  • Prepare documentation.


  • Strong experience in commercial JavaScript development;
  • Excellent knowledge of HTML and CSS;
  • Excellent coding skills, knowledge of design patterns, MVC and its variation;
  • Solid knowledge of Frameworks (Backbone or Protractor or React; ideally all of them);
  • Good knowledge of NoSQL (MongoDB);
  • Knowledge of RDBMS (PostgreSQL/MySQL/Oracle);
  • Hands-on experience in TDD;
  • Experience in Git, Jenkins, Jira/Redmine;
  • Responsible, self-motivated, hardworking and excellent team player;
  • Upper-intermediate English;
  • IT background.

Nice to have

  • Knowledge of JavaScript (Backbone.js/Ajax/JQuery) HTML and CSS will be plus;
  • Some experience acting as a Scrum Master or Team Lead will be plus;
  • Experience working with requirements will be plus;
  • Domain expertise in Investment Banking and/or a willingness to learn it will be a plus;
  • Hands-on experience in message broker systems (Apache Kafka/RabbitMQ) will be a plus.

We offer

  • Possibility to be involved in an international project (Canada, China, Hong Kong, Mexico, USA, Switzerland, Germany, Sweden, United Kingdom, Russia, Belarus, Ukraine, Hungary, etc.);
  • Language classes (English and Polish);
  • Vast opportunities for self-development: online courses and library, experience exchange with colleagues around the world, partial grant of certification;
  • Career development center;
  • Possibility to take part in both: corporate and startup environment;
  • Possibility to relocate for short and long-term projects;
  • Relocation package for those who relocates to Krakow, Wroclaw, or Gdansk from other locations;
  • Benefit package (health care, multisport, lunch tickets, petrol vouchers and shopping vouchers, etc.);
  • Fruits on a weekly basis;
  • Sponsored sport activities, E-sport program;
  • We kindly ask you to include the following clause in your application: "Wyrażam zgodę na przetwarzanie moich danych osobowych zawartych w mojej ofercie pracy dla potrzeb niezbędnych do realizacji procesu rekrutacji zgodnie z ustawą z dnia 29 sierpnia 1997 r. o ochronie danych osobowych (Dz. U. z 2002 r. Nr 101, poz. 926, ze zm.)";
  • Please note that only selected candidates will be contacted.