We are looking for a Full Stack Developer to be a key member of our team working on a leading visual analytics application.

Spotlyt, the application written in TypeScript, can handle complex queries on billions of rows of data, delivering results in milliseconds visualized on charts and maps. We are delivering unique solutions to diverse clients from an array of sectors for example, a global telecoms company that uses Spotlyt to allow them to discover previously inaccessible insights through our intuitive dashboard that converts raw data into decision-ready information.

You’ll be working on the end-to-end technical design, integration, testing and deployment of new products and features. You'll improve and extend our application that’s built with React, Redux & Node.js. For example, designing and implementing new visualization methods, optimizing client-side performance, providing integrations with external services, and creating innovative SAAS functionalities.  

In our team you’ll work with our partners and clients to deliver great code, great products and great experiences. Innovation is key to us so be ready to create, share and defend new ideas and solutions. Then we’ll give you the space to work on your new ideas and implement them in a way you’re proud of.

Very well

You will

  • Actively participate in Spotlyt's development on all possible levels
  • Work in a team of Full Stack JavaScript developers headed by a team leader
  • Mainly work on new features
  • Proactively provide solutions and implement them

How we work

  • TDD Concept
  • Code reviews 
  • Static code analysis - ESLint 
  • Test automation 
  • Unit tests
  • Integration tests
  • Build server – GitLab
  • CI/CD
  • Jira
  • Agile / Scrum

We're looking for:

  • At least 3 years of commercial programming experience in JavaScript
  • At least 2 years of commercial programming experience in NodeJS
  • At least 1 year of commercial programming experience in Typescript
  • At least 1 year of commercial programming experience in writing a Unit Tests
  • Good knowledge of React and Redux stack
  • Good knowledge of REST API
  • Practical knowledge of MongoDB
  • Knowledge about libraries for data visualization (d3, Plotly, etc.)
  • Experience or willingness to get experience in backend technologies (Node.js) 
  • Experience with Docker
  • English at least (B2 level) 

It'd be nice to have:

  • Knowledge about style-component concept
  • Knowledge about mapping services (Mapbox, Google Maps, etc.)
  • Experience with Docker
  • Practical knowledge of SQL
  • Mathematics, statistics or a data science background 

Packages and extras

  • Healthcare package for families
  • Leisure package
  • Trainings


  • Shower
  • Car parking
  • Integration events
  • Bicycle parking
  • Hot beverages

1. Application - using our website: https://careers.brytlyt.com/jobs/
2. HR Screening call
3. Techical Interview

Brytlyt Ltd


Brytlyt is a well-funded Data Analytics scale-up. Our technology team is based in Poland (Warsaw and remote) while commercial and operations management is based in the UK. 
Our growing development team of talented engineers in Warsaw are building our three core products: 

  1. Brytmind – a high-speed, deep learning framework optimized for database workloads. Brytmind is integrated into the world's fastest and most advanced analytics platform 
  2. Spotlyt - our data science workbench that provides users with an interactive and intuitive tool to work with and analyze data. A web-based visualization/GUI and data analytics tool. 
  3. BrytlytDB - a superfast GPU accelerated relational database capable of processing billions of rows of data in milliseconds 

All three of these tools can be accessed as a service at www.brytlyt.io using just a browser.