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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on designing and maintaining integrations between enterprise systems. Key technologies are Java, REST API, Kafka / RabbitMQ / IBM MQ and data formats XML / JSON / SOAP. Responsibilities include designing and implementing integrations, developing REST services, implementing broker-based solutions, analyzing data flows, troubleshooting integration issues, creating technical documentation and participating in integration testing and deployments. Offers include development opportunities, medical and sports benefits and a hybrid work setup.
from: 24 September 2026
to: 24 October 2026
21 000 - 25 200 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:mid • senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Kafka
RabbitMQ
IBM MQ
Java
XML
JSON
SOAP
Optional technologies
Spring Boot
Oracle
Microsoft Azure
Our requirements
- Minimum 5+ years of experience in IT, with a strong focus on system integrations.
- Proven experience in designing and implementing system integrations.
- Strong knowledge of REST API design and best practices.
- Hands-on experience with Kafka, RabbitMQ, or IBM MQ.
- Proficient in Java and capable of debugging integration code.
- Strong understanding of XML and other data exchange formats (e.g., JSON, SOAP).
- Previous experience working in large-scale enterprise environments.
- English proficiency sufficient to read and work with technical documentation.
Optional
- Knowledge of Spring Boot and microservices development.
- Familiarity with Guidewire Insurance Suite.
- Experience with Oracle databases.
- Exposure to Azure cloud environments.
- Experience with event-driven architectures.
- Background in the financial or insurance sector.
Your responsibilities
- Design and build system integrations for complex enterprise environments.
- Develop and enhance REST API services.
- Implement solutions using Kafka, RabbitMQ, or IBM MQ.
- Analyse data flows between systems and identify critical integration points.
- Diagnose and troubleshoot integration-related issues.
- Create and maintain technical documentation for integration solutions.
- Collaborate closely with development teams and solution architects.
- Participate in integration testing and support deployment activities.
- Note: Detailed project information will be shared during the recruitment process.
About the project
We are looking for an experienced Senior Integration Engineer to design and build integrations between business systems in an enterprise environment. The role involves working on synchronous integrations as well as asynchronous communication based on message brokers.
If you have experience in API development, messaging platforms, and enjoy working on complex integration solutions, this role is for you.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
agile
This is how we work on a project
- Continuous Deployment
- Continuous Integration
- DevOps
- documentation
- issue tracking tools
- testing environments
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
What we offer
- Flexible cooperation model
- Hybrid work setup
- Collaborative team culture – work alongside experienced professionals eager to share knowledge
- Continuous development – access to training platforms and growth opportunities
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment – laptop and essential software provided
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Senior Integration Engineer
21k–25.2k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Warszawa, Masovian
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