API Integration Developer
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on digital business transformation and delivering integration services and APIs within a microservices architecture. Core technologies include Java 21+, Spring Boot, Spring Cloud, Hibernate, REST / OpenAPI, OAuth 2.0 / JWT, Kafka / RabbitMQ, Kubernetes, CI/CD (Bamboo/Jenkins) and PostgreSQL/Oracle databases. Responsibilities cover designing, implementing, testing and maintaining integrations and APIs, participating in architectural decisions, ensuring quality, security and performance, diagnosing incidents, collaborating with product and architecture stakeholders, and engaging in code reviews and delivery automation. Offer includes a hybrid model from Warsaw and benefits such as Luxmed Gold and Multisport Plus.

API Integration Developer

Company: YOUR ITEAMS sp. z o.o.

from: 6 October 2026
to: 5 November 2026
80 - 120 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:mid • senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian

Requirements

Expected technologies

Java
Spring Boot
Hibernate
Apache Kafka
RabbitMQ
Kubernetes
Jenkins
Git
Bitbucket
Bamboo
Jira
PostgreSQL
Oracle

Our requirements

  • 4+ years of commercial experience developing applications in Java, including practical work with Java 21+ and Spring Boot; experience with Spring Cloud and Hibernate is a plus.
  • Proven experience designing and implementing inter-system integrations and APIs using REST, JSON, OpenAPI, OAuth 2.0 and JWT; familiarity with SOAP and XML.
  • Experience building asynchronous integrations using Apache Kafka, RabbitMQ or other message brokers.
  • Experience with API Management platforms for publishing and securing APIs.
  • Experience developing solutions in a microservices architecture and deploying them to Kubernetes.
  • Familiarity with CI/CD processes and tools, particularly Bamboo or Jenkins, and with Git/Bitbucket; practical experience automating deployments and working with Jira.
  • Experience writing unit tests and using Java testing frameworks.
  • Experience working with PostgreSQL or Oracle databases, including creating and optimizing SQL queries.
  • Demonstrated ability to work independently in projects, resolve technical problems and make technical decisions.

Your responsibilities

  • Design, implement, test and maintain integration flows and APIs in accordance with requirements and the Definition of Done.
  • Participate actively in technical decision-making related to integration and API implementation, ensuring alignment with architectural standards.
  • Ensure delivered solutions meet quality, security, availability and performance requirements; diagnose incidents and address root causes.
  • Collaborate with architects, analysts, Product Owners and project teams to refine requirements and agree on solutions.
  • Contribute to estimation, sprint planning and assessment of technical risks.
  • Support team members with technical problem solving and share best practices.
  • Regularly participate in code reviews and help evolve coding standards and automation in software delivery.

About the project

API Integration Developer will design, implement and maintain integration services and APIs for a project that transforms the digital business domain. The role involves delivering integrations between systems within a microservices architecture, applying CI/CD automation, operating in Kubernetes environments, and ensuring quality, security and performance of services.

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration
Company

What we offer

  • Hybrid model from Warsaw: 3 working days from Warsaw office (Wola), 2 days remote
  • Professional development opportunities.
  • Unique TEAL culture, relationship- and respect-driven community, non-corporate atmosphere.
  • Agile approach and no bureaucracy.
  • Activities to support your well-being and health.
  • Luxmed Gold Extended medical care and Multisport Plus benefit.

Benefits

  • sharing the costs of sports activities
  • private medical care
  • remote work opportunities

Recruitment stages

  • 1.
    Screening Call
  • 2.
    Cultural Fit Interview
  • 3.
    Technical Interview
  • 4.
    Final Round Interview

YOUR ITEAMS sp. z o.o.

Unique TEAL culture, relationship- and respect-driven community, non-corporate atmosphere.
Agile approach and no bureaucracy.

This is how we work

API Integration Developer
80–120 zł / hr. (B2B)
I apply to:
YOUR ITEAMS sp. z o.o.
Warszawa, Masovian
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