Senior Full Stack Developer (AdTech)

Bulgaria Czech Republic Europe Europe (remote) Poland Portugal Remote (Ukraine) Romania Ukraine Engineering

Required skills

JavaScript / strong
TypeScript / strong
Node.js / strong
React / strong
English / strong

We are looking for an experienced Senior Full Stack Developer to join our Stellar team!

We are building a Competence Center where we stay focused on exploring different domains to become the industry’s best-in-class specialists. If you can easily learn new technologies, see the “big picture,” strive for high-quality solutions, and work without supervision, it could be a perfect match.

We view technology as a tool and aren’t religious about it. We put these tools in service of our customers and love it when a hard problem can be solved in a simple, beautiful, and cost-effective way. This is what drives our technology choices today and will drive our choices tomorrow and the day after.

By joining us, you will:

have the possibility to deep dive into a very exciting and challenging domain – Advertising

suggest improvements in all engineering and architectural aspects of the projects

become a part of the core team, that works with pre-sale activities and develop technical expertise in our team

improve own qualification within areas of expertise at various training courses, mentoring circles, and other educational events


  • 5+ years of software engineering experience
  • Excellent knowledge of JavaScript, TypeScript, Python
  • Solid experience with ReactJS, Node.js, and the related ecosystem
  • Good level of experience with clouds (AWS or GCP)
  • Strong estimation skills, ability to come up with solutions, pros/cons
  • Strong knowledge of algorithms and data structures
  • Experience with designing, implementing, and shipping rich web applications
  • Expert in documentation, Software Development Lifecycle, and ALM Tools
  • Strong knowledge of functional programming concepts and other programming paradigms
  • At least an Upper-Intermediate level of English
  • Openness to working and collaborating in a multidisciplinary and multicultural team


  • Experience with GO
  • Experience in the AdTech domain


  • Enthusiastic problem-solver
  • Focus on simplicity and quality
  • Customer Orientation mindset
  • Openness to feedback and changes
  • Thoroughness and accuracy


  • Produce clean code and proactively review it with peers to ensure its quality
  • Ensure quality, maintainability, and conformance of software to best practices
  • Participate in requirements clarification sessions, collect inputs and requirements of assigned tasks
  • Participate in estimation and planning sessions
  • Participate in proposal preparation efforts using your technical expertise
  • Develop technical project documentation and user documentation
  • Participate in project and team meetings, provide relevant contributions and information
  • Analyze given business problem, extract, and document business requirements, and elaborate technical solution
  • Communicate with customers on complex matters, discussions, negotiations
  • Participate in technical interviews of software developer specialists and perform an assessment of candidates’ capabilities against job requirements


  • 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


Share this vacancy

apply now

apply now


    Drop your CV here, or
    Supports: DOC, DOCX, PDF, max size 5 Mb

    Take a quiz

    Take a quiz

      Was it comfortable to apply the CV?

      How did you find us?