Senior JavaScript Developer (AdTech)

Bulgaria Europe Europe (remote) Hungary Poland Remote Remote (Ukraine) Ukraine JavaScript Software Developer

Required skills

JavaScript / strong
CSS and its pre-processors / good
English / strong

We invite a JavaScript Developer who is responsible for developing and designing the heart of our solution that struggles with extensions stealing coupons from e-commerce stores. 

We are also looking for someone who wants to grow their career in a fun and exciting work environment! 


We are working with a US-based company that operates in AdTech domain. It has an innovative startup that has grown into a huge product in the market, working with a variety of well-known clients. 


The project developers a cybersecurity solution protecting revenue and user experiences across all platforms. 


  • A high degree of fluency in Vanilla JavaScript ES6, with knowledge of modern techniques as well as core JavaScript concepts 
  • Strong experience in responsive and cross-browser web application development 
  • Ability to analyze and refactor legacy code 
  • Good knowledge of CSS and its pre-processors 
  • Experience in writing high-quality, robust code involving approaches such as unit testing, code coverage, and static code analysis 
  • Experience in modern frontend build tooling (Webpack, ESlint, NPM) 
  • Experience with GitHub, code reviews, pull requests, and agile methodologies  
  • At least Intermediate level of English 

Personal Profile

  • Enthusiasm, pragmatism, and modesty 
  • You’re good with people, communicating clearly and respectfully in a way that’s appropriate to your audience  
  • You ask the right questions and avoid making assumptions 


  • Create technical designs for new, innovative solutions 
  • Take ownership over the features and implement them 
  • Maintain the heart of the solution – script, i.e. monitor the new versions of browsers, updates of extensions or other 3rd party components that may impact script work 


  • Diversity of Domains & Businesses
  • Variety of technology
  • Health & Legal support
  • Active professional community
  • Continuous education and growing
  • Flexible schedule
  • Remote work
  • Outstanding offices (if you choose it)
  • Sports and community activities

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