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

Netcompany1; Warszawa; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Scandinavian work environment

Medical Insurance

Multisport Card

Career development program for each

International cooperation with Denmark

Office locations in Warsaw

Job summary

Netcompany Banking Services is looking for a Senior IT Consultant (Mainframe) to join a mission-critical investment system team in Warsaw. You will own maintenance and enhancements for the FED system and drive performance improvements.

You will collaborate across Denmark and Poland, contributing to complex migrations and expanding the system portfolio as part of a dynamic, trust-driven team. Strong COBOL, z/OS, and DB2 skills are required along with excellent English communication.

Qualifications

• Bachelor's or Master's degree in IT, mathematics, physics, or related field.
• 5+ years of mainframe development experience.
• Minimum 3 years COBOL development.
• Fluent in written and spoken English.

Responsibilities

• 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.

Skills

COBOL

z/OS

JCL

TSO/ISPF

Batch processing

CICS

DB2

PL/I

WebSphere on z/OS

English (written and spoken)

Education

Bachelor's or Master's degree in IT, mathematics, physics, or related field

Tools

WebSphere on z/OS

Job description

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.

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.

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.

At Netcompany Banking Services, we prioritize community highly. We actively promote an open and welcoming work culture that is built on collaboration and trust, and where there is always room for mutual sparring and support.

It is part of our culture and values that all employees, irrespective of backgrounds, identities, and experiences, are met with understanding and respect, as well as equal opportunities for development and well-being.

You will have the opportunity to learn and collaborate with colleagues from various cultures and nationalities, as we are an international company.

We provide a shared environment where we engage with each other across departments and projects. Additionally, we offer a wide range of social and professional events that provide you with the best opportunities to expand and build a network early in your career.

Our Perks and Benefits

• Scandinavian work environment
• Medical Insurance
• Multisport Card
• Career development program for each employee and regular feedback
• International cooperation with colleagues from Denmark
• Attractive office locations in Warsaw: Wronia 10 (Metro Rondo Daszyńskiego) and Puławska 180 (Metro Wilanowska).

We are committed to creating an inclusive and diverse environment.

Our recruitment processes are based on individual merit.

All qualified candidates are invited to apply regardless of gender, gender expression, sexuality, disabilities, age, religion and beliefs, political beliefs, nationality, ethnic or social background .