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3Commas.io

Middle Backend Engineer

3Commas.io
Estonia · Full-time · Entry
We are seeking an adept backend developer proficient in Ruby on Rails, PostgreSQL, and AWS technologies. Expertise in fin-tech, trading, or cryptocurrencies is highly desirable. Our tech stack includes Go, Ruby, Rails, Sidekiq, Redis, Kubernetes, PostgreSQL, Clickhouse, DynamoDB, and various AWS services.

Requirements

  • 3+ years of experience in Ruby on Rails development
  • Strong understanding of PostgreSQL
  • Familiarity with AWS serverless services (Lambda, DynamoDB)
  • Experience with at least one key-value store (Redis/Memcached/etc.)
  • Adherence to best practices, including test-driven development, continuous integration, refactoring, and code standards
  • Ability to design robust, scalable, and secure features
  • Excellent communication skills (both online and in-person)
  • Proficiency in English at B2 level or higher
  • Integration experience with external API services

Responsibilities

  • Develop modular and scalable codebase
  • Implement new trading algorithms and features
  • Address high-load and security-related challenges
  • Ensure code quality and performance

Would Be a Plus

  • Knowledge of Kubernetes
  • Basic knowledge of Go and a desire to further develop skills in it

We Offer

  • Work from our offices in Tallinn and Nicosia or fully remote.
  • Inspiring leadership and knowledgeable, creative, genuinely kind colleagues
  • Paid annual leave, paid sick leave
  • Competitive salary offers based on your skills
  • In-house lessons for your crypto-trading skills

Key Skills

Ranked by relevance

ruby aws ruby on rails postgresql continuous integration kubernetes serverless dynamodb redis
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Country Guide

Estonia

Digital-first ecosystem and startup culture

Posted
Feb 12, 2025
Type
Full-time
Level
Entry
Location
Tallinn
Company
3Commas.io

Industries

Software Development

Categories

Engineering Information Technology

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