Senior Full-Stack Engineer (BE)

3Commas - هندسة

عن بعد

Full Time

Intermedtiate

+6years

Deadline: 2025-09-22

About the Company

3Commas.io is a leading developer of cryptocurrency trading software, building the leading automation platform for crypto trading—turning complex markets into simple yet powerful algorithmic strategies. Our AI-driven bots (DCA, Grid, Signal), deep integrations with TradingView, and a robust API enable traders to automate and optimize across 15+ major exchanges, including Binance, Coinbase, OKX, and Bybit. We serve a global community of individual and institutional traders and developers who rely on our security-first, reliable, and battle-tested infrastructure to run strategies 24/7. Join us to build tools that power real trading volume, tackle hard product and engineering problems at scale, and make pro-level trading accessible to everyone.

Job Description

3Commas is looking for a Senior Full-Stack Engineer (Backend).

Nice to Have:

Basic experience with Go and interest in growing your skills in it.
Familiarity with Kubernetes and microservice orchestration.
Knowledge of Kafka, RabbitMQ or similar messaging/streaming systems.
Experience tackling high-load scenarios and optimizing performance bottlenecks.
Hands-on experience with observability tools like Grafana, CloudWatch, etc.

Benefits

Impact at Scale Drive product innovation for a platform used by millions of traders and developers worldwide.

trategic Influence Shape the product roadmap and user experience alongside executive leadership.

Culture of Growth Join a passionate, talented team where ideas are valued, and careers are accelerated.

Global & Remote Work flexibly from Barcelona, Tallinn, Cyprus — or remotely, in sync with our distributed product and tech teams.

Responsibilities

Develop and maintain a modular, scalable SaaS platform using Ruby on Rails.

Implement new features and improve existing ones in close collaboration with product and design teams.

Take ownership of your code in production: monitoring, alerting, and ongoing support.

Address high-load and security-related challenges in backend and full-stack solutions.

Mentor and support the growth of other engineers on the team.

Integrate external API services and ensure their secure and stable operation.

Ensure code quality and performance through early involvement in QA and testing workflows (shift-left approach).

Contribute to quality through automated tests, code reviews, and proactive refactoring.

Collaborate closely with cross-functional teams including DevOps and QA.

Stay up to date with best practices in backend architecture, performance, and security.

Requirements

4+ years of experience in Ruby on Rails backend development.

6+ years of proven full-stack commercial development experience.

Strong understanding of PostgreSQL and relational data modeling.

Familiarity with AWS serverless services (e.g., Lambda, DynamoDB).

Hands-on experience with key-value stores (Redis, Memcached, etc.).

Experience integrating third-party APIs and services.

Adherence to modern software development practices: TDD, CI/CD, clean code, refactoring.

Ability to design and build scalable, secure, and maintainable features.

Strong communication skills and collaborative mindset.

Proficiency in English (B2 level or higher, spoken & written).

Commitment to participating in quality assurance workflows and a strong understanding of the “shift-left” approach.

Apply for Job

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Job Details

Location عن بعد

Address online

Job Type Full Time

Degree N\A

Position Level Intermedtiate

Experience +6years

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