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Senior Backend Software Engineer

Backend Developer • Remote • Full-time • 📍 Sofia

Senior backend engineer role building high-performance, scalable services at Trading 212 on a modern stack (Java 21, Go, Node.js, PostgreSQL, Kafka, AWS, Kubernetes).

Responsibilities

  • Develop solutions with a holistic approach to business needs, service architecture and infrastructure
  • Engage in the full SDLC, from requirements to monitoring, with end-to-end ownership
  • Take full ownership of code, continuously improving and refactoring
  • Build for performance, scale and resilience where downtime and data loss are unacceptable
  • Work in small, autonomous teams with short release cycles
  • Learn from peers and contribute to a culture of feedback and continuous improvement

Requirements

  • Experience building services in a microservices architecture
  • Strong understanding of communication protocols such as HTTP, WebSockets and AMQP
  • Experience with at least one modern web framework
  • Deep understanding of relational databases: indexing, transactions, isolation levels, locking
  • Ability to design and operate systems that perform reliably at scale

Soft skills

Ownership mindset and end-to-end responsibilityAbility to balance speed with engineering disciplineOpenness to feedback and continuous learning

What we offer

  • Remote or hybrid working depending on role
  • Attractive benefits package varying by location
  • All applicants contacted regardless of outcome

About the company

Trading 212 is on a mission to enable everyone to build wealth, reinventing trading and investing with products used by over 6 million clients and more than €38 billion in assets under management, running on a modern stack including Java 21, Go, Node.js, PostgreSQL, Kafka, ClickHouse, AWS and Kubernetes.

Languages: Angol: Felsőfok

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