Who we are:
3commas is a leading cloud-based Order Management System (OMS) and crypto-asset management platform offering a unified access point and interface with the worlds’ top 20 crypto exchanges.

Fully automated trade execution and portfolio management, supported by continuously evolving strategies, algorithms, and risk management solutions.

We have a team based in Tallinn, Estonia.

Who we need:
We need an experienced backend developer with deep knowledge of Ruby on Rails+Postgresql stack. Expertise in fin-tech, trading, or cryptocurrencies will be a huge advantage.

We use Postgresql, Sidekiq, Redis, Memcached, k8s.


  • 3+ years of experience in Ruby on Rails development
  • Deep knowledge of Postgresql
  • Experience in working with at least one key-value store (Redis/Memcached/etc)
  • Follow best practices (test-driven development, continuous integration, refactoring, code standards)
  • Design robust, scalable and secure features
  • Solid communication skills (both online and in-person)
  • Experience with payment gateways is a bonus (Paypal, Stripe, etc)
  • Connection of external API service
  • Experience in working with k8s will be a huge bonus


  • Write modular and scalable code
  • Implement new trading algorithms and features
  • Tackle high load and security related challenges
  • Be responsible for code quality and performance

What we offer:

  • Optionally work from the office in Tallinn or remotely
  • Inspiring leadership and knowledgeable, creative, genuinely kind colleagues
  • Flexible schedule
  • Paid annual leave, paid sick leave
  • Competitive salary offers based on your skills
  • In-house lessons for your crypto-trading skills
  • English courses to stay in touch with your colleagues

About 3Commas Team:

We began 3Commas in 2017 after realizing that it was an arduous task to make money trading cryptocurrencies. Trading services were horribly inefficient and very time-consuming so we built a reliable platform that helps users make money with less personal involvement. Once we realized the power of 3Commas, we wanted to share it with other traders, and so our company was born.