Senior IT Consultant Mainframe (f/m) for Netcompany Banking Services

We are team players who create IT solutions for a variety of customers, from small private companies to large public-sector organisations. Our culture is built on collaboration, flexibility, and a strong focus on delivering value to our customers.
We are looking for a Senior IT Consultant (Mainframe) to join our Host product team in Warsaw. You will help develop and support the systems behind our investment operations and play a key part in a strategically important project.
Work Tasks and Responsibilities
As a Senior IT Consultant (Mainframe), you will work on our mission critical investment system. Your work will cover everything from day-to-day maintenance and incident response to system enhancements and larger initiatives.
Your primary responsibilities will include:
Take ownership of maintaining and enhancing the FED system, ensuring reliability, performance, and continuous improvement.
Work across analysis, design, development, and definition of technical requirements.
Collaborate daily with colleagues and stakeholders across Denmark and Poland, working both independently and as part of a close team built on openness, collaboration, and delegated responsibility.
Play a key part in the project to replace the FED system, contributing to a complex system transition.
Help the team expand to support additional systems, broadening your technical portfolio and developing your career beyond the FED system.
On-call duty: participation in a rotating on-call schedule to support critical banking systems outside regular working hours.
About You
You are an experienced mainframe developer with a solid track record of delivering and supporting complex systems. You thrive in a collaborative environment where ownership is delegated, and trust is built through openness.
We imagine that you:
Have a Bachelor's or Master's degree in IT, mathematics, physics, or a related field.
Have 5+ years of relevant work experience as a mainframe developer.
Have minimum 3 years of COBOL programming and development.
Have solid experience with z/OS, including JCL, TSO/ISPF, and batch processing.
Have experience and proficiency with CICS and DB2 (SQL) on z/OS.
Are fluent in written and spoken English.
It would be a strong advantage if you:
Have PL/I programming experience.
Have experience with WebSphere on z/OS.
Have experience from banking, ideally securities or investment systems.
Have experience with system migration or decommissioning projects.

Skills
SQL

Employment type
Full-time

Work arrangement
No