Ibm Integration Developer

October 19, 2026

Hybrid

Middle

Warsaw

Keep in mind

Original vacancy is in Polish
You will likely need Polish for the job. The employer can confirm

Description

An IT company delivering high-quality software development services on the Polish and international markets is looking for a Mid-level Integration Developer. The person will join a team responsible for developing and maintaining enterprise integration services: designing, implementing and optimizing integration flows that support data exchange between systems. The work is centered on IBM App Connect with supporting standards and queuing technologies, plus unit and integration testing of delivered solutions. The project is planned to start in January 2027 in a hybrid model in Warsaw on a B2B basis.

Responsibilities

Design, implement and develop integration services using IBM App Connect
Create and evolve integration flows implementing business and technical processes
Implement mechanisms for data transformation, validation and enrichment
Develop shared components and standardize integration solutions
Ensure reliability, performance and stability of data flows
Create unit and integration tests and document deployed solutions
Analyze and solve problems related to system integration
Optimize existing solutions and eliminate bottlenecks
Collaborate with analysts, architects and system development teams

Requirements

Minimum 3 years of commercial experience building integrations with enterprise platforms such as IBM App Connect, IBM Integration Bus, WebSphere Message Broker, webMethods, TIBCO or MuleSoft
Minimum 1 year of commercial Java programming experience including Java SE 17 or newer
Practical knowledge of integration standards: SOAP, REST, XML, JSON, WSDL, XML Schema and JSON Schema
Knowledge of JMS and transactional queuing systems, especially IBM MQ
Knowledge of relational databases
Practical knowledge of the Linux operating system
Knowledge of Git, Maven, Jira and Jenkins
Ability to create unit and integration tests
Care for code quality, performance, reliability and technical documentation
Analytical problem-solving skills and ability to work in a project team
Practical knowledge of non-relational databases
Experience developing shared integration components and standardizing data flows
Experience optimizing performance and monitoring integration services
Independence and responsibility for assigned tasks
Analytical approach to problems and ability to find their root causes
Good work organization and quality focus
Ability to collaborate with technical and business teams
Openness to sharing knowledge and developing good practices
Readiness to continuously improve solutions and expand skills

Conditions

B2B cooperation format
Hybrid work model in Warsaw
Full-time engagement
Planned project start in January 2027

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