Senior Java Developer

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SeniorHybryda·WarszawaFull-time

#465400·Dodano wczoraj·0

Źródło: emagine

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Tech Stack / Keywords

Java Spring Boot REST APIsOpenAPISwaggerIBM MQCOBOLz/OSCICSDB2

Podsumowanie oferty

Develop enterprise integration layers for payment-related initiatives, connecting digital solutions with backend and mainframe systems. Take end-to-end technical ownership of Java and Spring Boot development, REST API design, and asynchronous messaging.

Wymagania

Strong hands-on experience with Java and Spring Boot.
Senior-level backend or integration development experience.
Strong experience designing and implementing REST APIs.
Very good knowledge of OpenAPI / Swagger and API contracts.
Practical experience with IBM MQ or comparable enterprise messaging technology.
Good understanding of asynchronous communication and enterprise integration patterns.
Experience with data mapping, validation, and error handling.
Experience deploying applications in containerised or PaaS environments.
Strong troubleshooting and analytical capabilities.
Ability to work independently and take technical ownership.
Willingness and ability to mentor developers and transfer knowledge.
Good English communication skills.

Nice to have:

Experience with COBOL and mainframe development.
Experience integrating Java applications with IBM mainframe environments.
Knowledge of z/OS, CICS, DB2, or related mainframe technologies.
Previous experience within banking, payments, or financial services.
Experience with container orchestration and multi-cluster environments.

Obowiązki

Design and develop REST APIs using Java and Spring Boot.
Work in a contract-first API development model using OpenAPI / Swagger.
Translate API contracts into reliable, production-ready implementations.
Build integration and transport services connecting digital applications with backend and mainframe systems.
Develop integrations using IBM MQ or comparable messaging technologies.
Implement reliable asynchronous message exchange.
Design data mappings and transformation logic between systems.
Implement validation, error handling, and failure scenarios.
Support deployment within containerised or PaaS environments.
Support potential migration from a single-cluster to a multi-cluster platform setup.
Troubleshoot integration and production issues.
Take technical ownership of solutions from design through implementation and deployment.
Share technical knowledge with other developers.
Mentor and train team members.
Prepare technical documentation and structured handover materials.

Inne informacje

Project start is planned for December 2026.

emagine

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