Senior Full-Stack Engineer (BE)

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., As a Senior Fullstack Engineer you will work on our high-load trading platform that connects to 15 exchanges and powers manual and automated strategies with DCA Grid and Signal bots. Youll build and own complex features end-to-end on a modern stack., * 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.

• 4 years of experience in Ruby on Rails backend development.
• Proven experience with React and TypeScript.
• 6 years of proven full-stack commercial development experience.
• Strong knowledge of PostgreSQL and relational modeling at scale : large tables replication partitioning multiDB per app query planning and indexing.
• Hands-on approach to software engineering best practices : TDD refactoring code review and system design.
• Familiarity with AWS services (e.g. Lambda DynamoDB).
• Hands-on experience with key-value stores (Redis Memcached etc.).
• Experience integrating third-party APIs and services.
• 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.

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.