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Mid Node.js Developer

AdTonos – an innovative audio tech company

We’re an audio-centric ad-tech company offering cutting-edge solutions for advertisers and impressive monetisation opportunities for publishers.

We’re successfully running a platform that handles:

  • 1.5B+ HTTP requests per month (~550/s)
  • 270M+ unique listeners per month
  • 380M+ AMQP messages per month (~150/s)
  • 8B+ DB operations per month (~3K/s)
  • 2TB+ DB size
  • 6.5TB+ upload, 1TB+ download per month

To keep the high pace of innovation we are currently looking for:

Mid Node.js Developer

Salary Offer: 15000 – 19000 PLN net per month (B2B) + Bonus

Location: Gdynia or remote


  • Greenfield projects – high level of autonomy
  • New features in existing projects – from design to delivery
  • Scaling, optimising and improving the stability of the current platform
  • Refactoring and improving existing code and architecture


  • At least 3 years of professional experience
  • TypeScript and ES6+
  • Node.js and Express.js
  • MongoDB (DB design / queries and aggregations)
  • English (B2) 


  • Angular, Meteor, Memcache, fastify
  • Microservices and AMQP/RabbitMQ
  • Digital audio signal processing (codecs, FFT, mel-scale filter banks)
  • Rust programming language and Neon
  • Smart-speakers (Amazon ASK, Dialogflow, Jovo)
  • DevOps tools (Ansible, PM2, Sentry)
  • Agile / Lean / Scrum / Kanban
  • Prior experience working in a start-up

Why AdTonos?

  • Challenging projects – the statistics mentioned above are only the beginning!
  • Rich tech-stack – we extensively use all the languages, frameworks, tools and approaches mentioned in the must-have and nice-to-have sections
  • Greenfield projects – ask us for a pitch deck with planned development
  • High level of autonomy in technical decisions and development process
  • Work in a small, self-organised team where people and teamwork are truly important


  • A monthly bonus based on the company’s performance (you can even double your salary!)
  • Open to discussing what you need to best perform – tell us what you need!

Learn more about joining AdTonos Team and our recruitment principles.
We do not require cover letters 📬.

Apply for this position