Java Software Engineer, AWS | Trade Execution

HL TECH Poland

Biała Podlaska

On-site

PLN 153,000 - 218,000

Full time

7 days ago
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Job summary

HL Tech Poland is building the next generation of trade execution platforms. You will contribute to backend services in Java/Spring Boot, design REST APIs and cloud-native workflows, and operate AWS-based infrastructure in a distributed Poland-UK engineering setup.

The role emphasises ownership, reliability, and collaboration across teams while maintaining high standards for security and testing.

Qualifications

  • Strong Java/Spring Boot backend experience.
  • Practical AWS experience in production environments.
  • Experience designing and integrating REST APIs and microservices.
  • Experience owning services in production, including monitoring and reliability improvements.
  • Experience with distributed, event-driven or highly available systems.
  • Understanding of observability practices (metrics, tracing, logging).
  • Understanding of testing, maintainability and security practices.
  • Experience with containers and Kubernetes.
  • English (C1) and Polish (B2) proficiency.

Responsibilities

  • Build and improve backend services using Java and Spring Boot.
  • Design and implement REST APIs and multi-service flows.
  • Develop and operate cloud services in AWS.
  • Write secure, maintainable and testable code with automated tests.
  • Support production systems and investigate incidents.
  • Use metrics, tracing, logging and monitoring to improve reliability.
  • Contribute to solution design and code reviews.
  • Collaborate with Product and engineering teams in Poland and the UK.

Skills

Java & Spring Boot
AWS in production
REST APIs
Microservices
Event-driven
Observability
Testing
Kubernetes
English/Polish

Tools

Terraform
Hibernate
Node.js
TypeScript

Job description

HL Tech Poland is building the next generation of trade execution platforms. You will contribute to backend services in Java/Spring Boot, design REST APIs and cloud-native workflows, and operate AWS-based infrastructure in a distributed Poland-UK engineering setup.

The role emphasises ownership, reliability, and collaboration across teams while maintaining high standards for security and testing.

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