Description
The Middleware Engineer will support a data centre migration programme for critical payment processing systems, including card acceptance, acquiring, and issuer processing. The role involves building, configuring, and preparing middleware components; supporting environment setup and access; diagnosing and resolving technical issues; monitoring performance, reliability, and stability; supporting testing and migration; and maintaining Confluence documentation. The position requires extensive Oracle middleware and integration experience, strong PL/SQL and scripting skills, automation and scheduling experience, and knowledge of high-transaction environments, networking, load balancing, and TLS. It is based in Warsaw, primarily onsite with 1–2 remote days per month, and includes a long-term B2B contract, competitive salary, healthcare, and international project work.
