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Insight International (UK) Ltd

Senior Java Software Engineer

Insight International (UK) Ltd
Poland · Contract · Mid-Senior

Key Responsibilities:

  • Design, develop, and maintain high-performance backend applications using Java 18+ and Spring Boot
  • Build and consume RESTful APIs, GraphQL services, and document them using OpenAPI/Swagger
  • Work with relational and NoSQL databases like PostgreSQL, MySQL, and MongoDB using Hibernate and JPA
  • Implement CI/CD pipelines using Jenkins, GitLab CI/CD, or GitHub Actions
  • Develop and deploy containerized applications using Docker and orchestrate them with Kubernetes
  • Integrate with Azure Cloud services for deployment, storage, and monitoring
  • Set up and maintain monitoring and logging tools such as Prometheus, Grafana, ELK Stack, and Splunk
  • Write unit and integration tests using JUnit, TestNG, Mockito, and WireMock
  • Work with messaging systems like Kafka, and integrate with external services via REST and SOAP
  • Implement secure authentication and authorization using OAuth2, JWT, and Spring Security
  • Collaborate with cross-functional teams in an Agile/SCRUM environment

Required Skills & Qualifications:

  • Strong proficiency in Java (18+), Spring Boot, and microservices architecture
  • Experience with API development and documentation tools
  • Solid understanding of database design, ORMs, and query optimization
  • Hands-on experience with CI/CD tools, containerization, and cloud platforms
  • Familiarity with monitoring, logging, and alerting systems
  • Knowledge of testing frameworks and mocking tools
  • Experience with messaging systems and integration protocols
  • Strong grasp of security best practices in web applications
  • Excellent problem-solving and communication skills

Key Skills

Ranked by relevance

microservices storage nosql cicd
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Posted
Aug 29, 2025
Type
Contract
Level
Mid-Senior
Location
Cracow

Industries

Banking Investment Banking

Categories

Consulting

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