Senior Integration Specialist

Senior Integration Specialist End Client: Banking Sector Location: Kraków, Poland Work Model: Hybrid (2-3 days onsite) Contract Type: B2B ContractStart Date: ASAP Project: Service Maintenance & Migration Programme Project Overview You will join an established integration team responsible for maintaining, enhancing, and migrating enterprise integration services within a large banking environment. The team operates under a "build it, run it, own it" model - covering the full lifecycle from requirements analysis through development and production support. You will collaborate closely with international teams based in Kraków and Düsseldorf, supporting business-critical integrations across core banking systems. Key Responsibilities Development and implementation of data integration processes Supporting service maintenance and migration initiatives Analysis of technical requirements related to integration challenges Designing technical architectures for integration solutions Implementing scalable enterprise integration patterns Supporting CI/CD pipelines for integration deployments Collaboration with distributed international teams Ensuring integration solutions are production-ready and maintainable Required Skills & Experience Core Integration Experience Strong experience with: IBM Integration Bus (IIB) V10 IBM App Connect Enterprise (ACE) V12 Enterprise Application Integration (EAI) tools IBM Sterling Transformation Extender (ITX) WebSphere MQ messaging Integration development & architecture design DevOps / CI-CD GitHub Jenkins CI/CD integration delivery pipelines Integration deployment automation Technical Skills Unix / Linux (basic administration knowledge) SQL (preferably DB2) JUnit automated testing Service integration lifecycle experience Language English - Upper Intermediate (minimum) Nice to Have German language skills IBM InfoSphere DataStage (ETL) Banking or financial services experience Migration project exposure Ideal Candidate Profile Senior integration engineer comfortable owning solutions end-to-end Strong analytical and problem-solving mindset Self-organised and reliable Open-minded team player Interested in modern integration technologies and continuous improvement Working Environment International collaboration (Poland & Germany) Full ownership engineering culture Exposure to enterprise banking integrations Opportunity for internal and external training Long-term project stability Interview Process 1-2 Stage Technical Interview Technical discussion + team fit Next Steps CV submission Technical validation Client interview scheduling