Frontend Developer


    We are looking for a driven Frontend Developer to join our newly formed conversion rate optimization team in Košice / Bratislava. You will work on a mix of leading and emerging online casino brands for the web. You will turn ideas or concepts into A/B or multivariate tests to beat our original versions. You will be reporting to the Head of Product Design & User Research located in Vienna.

    Your responsibilities

    • Help to measurably improve pages and experiences for our online casinos
    • Work closely with internal stakeholders to turn requirements, ideas and concepts into testable experiments in the form of HTML/CSS/JS code
    • Ensure correct tracking of an experiment’s success metrics and other custom events
    • Achieve high quality code and knowledge sharing by collaborating with other developers or colleagues (code reviews, pair programming, QA)
    • Create a frontend development environment that you deem necessary to deliver code effectively and efficiently
    • Challenge, critique and contribute to current conversion rate optimization projects
    • Lead discussions relative to the future direction of frontend development practices in the Conversion Rate Optimization team

    Our expectations

    Within the first month we expect you to

    • Close any fundamental knowledge gaps in regards to implementing A/B or multivariate tests to ensure effectivity (we will provide you with any necessary trainings and resources)
    • Establish relationships with the Project Manager and Frontend Developer in Slovakia as well as the Product Design & User Research team in Austria
    • Familiarize yourself with Greentube as an organization and its products, key metrics, tools and processes
    • Collaborate with the teams in Vienna and Slovakia to start setting up workflows and processes that will ensure a delivery for high quality experiments
    • Create a development environment that lets you excel at what you do best: Producing high quality code consistently
    • Achieve the launch of a first A/B or multivariate experiment with the support of the team in Vienna

    Within three months we expect you to

    • Implement and launch multiple experiments for products based on AngularJS or VueJS that are integrated flawlessly with Google Analytics to ensure the correct tracking of key metrics and events
    • Regularly communicate with the development teams whose code you are changing when launching A/B or multivariate tests
    • Achieve high code quality by using proven methods such as code reviews and pair programming
    • Strengthen and broaden your working relationships with key stakeholders in Greentube such as product managers, designers, developers and marketing experts
    • Build a better understanding of our products and their features, key user journeys and our design and research practices

    Within a year we expect you to

    • Implement various different ideas from low to high complexity effortlessly
    • Explore A/B or multivariate testing options for mobile apps to implement first trial experiments
    • Achieve an improved and steady delivery of implemented experiments and data reports by continually refining and improving your workflows and processes based on your own observation and received feedback
    • Scale your efforts to support a larger degree of experimentation efforts matching or exceeding our previously achieved velocity (multiple tests launched for various online casinos every month)

    Our ideal candidate

    • Has 3+ years’ experience coding real world web projects
      Is proficient in HTML/CSS/JavaScript (including Vanilla JS, ES6+)
    • Has experience working with SPA Frameworks such as Angular, React or Vue
    • Has experience with proven concepts to create clean code and reduce bugs (QA, code reviews etc.)
    • Has experience implementing A/B or multivariate tests with the help of tools such as Maxymiser, Optimizely, Google Optimize or some equivalent
    • Has experience with VCS such as Git is a plus
    • Has excellent communication, presentation and organizational skills with a strong work ethic
    • Understands how design and research are key to measurably improve a product
    • Is passionate about creating and optimizing experiences
    • Appreciates and understands that seemingly small details like typography or copy can have large impacts
    • Has experience integrating with Google Analytics / Google Tag Manager or similar products and intermediate understanding of statistics (mean vs. average, statistical variance, etc.)
    • Is passionate about keeping up with current technology trends
    • Has experience with Agile or Lean methodologies
    • Is proficient in English to communicate with stakeholders in Greentube’s offices across Europe (Austria, UK, Malta)

    Tagged as: Javascript, html, CSS, developer, frontend

    Greentube Slovakia s.r.o.
    Greentube Slovakia, ako súčasť nadnárodnej spolocnosti NOVOMATIC, pôsobí v oblasti interaktívnej zábavy s dôrazom na online a mobilný herný sektor. V oblasti vývoja a výroby elektronických hier v prostredí HTML5 patrí k priekopníkom a technologickým lídrom v celosvetovom meradle. Inovatívne riešenia prináša na trh už od roku 2001.Greentube Slovakia is Greentube’s mobile branch and the industry’s first choice in providing B2B companies with casino games that run seamlessly on all platforms (desktop and mobile). Strong HTML5 competencies are the hallmark of this company: Greentube Slovakia is among the best of the best when it comes to transforming the famous games of the NOVOMATIC Group into high-quality mobile solutions. Players are eager to take their games with them wherever they might go, from the daily commute to a night out with friends, and Greentube Slovakia continuously delivers!