Senior Cobol Developer with Mainframe z/OS (willingness to learn Assembler) | Deloitte | Poland - - 17409

General Information

Position

Senior Cobol Developer with Mainframe z/OS (willingness to learn Assembler) | Deloitte | Poland

Work arrangement

Pełny wymiar czasu pracy

City

Gdańsk, Katowice, Kraków, Łódź, Poznań, Rzeszów, Szczecin, Warszawa, Wrocław

Country

Polska

Department

Consulting

Team

Customer

Area of interest

Consulting, Engineering

Way of work

Zdalny

Description & Requirements

Who we are looking for

We are looking for an experienced Assembler Developer with strong expertise in Mainframe z/OS knowledge to support our clients in system development, maintenance, and modernization initiatives. The ideal candidate will possess a thorough understanding of IBM z/OS, mainframe architecture, and related technologies.

Proficient in Assembler/Cobol programming and mainframe environments, including IBM z/OS (willingness to learn Assembler if Cobol is your main programming language)
Minimum of 4–5 years’ experience in Assembler/Cobol development, with at least 3 years working on mainframe systems
Hands-on experience with DB2
Experienced with performance and debugging tools
Strong understanding of memory management and system-level programming concepts
Proven ability to troubleshoot and resolve complex production issues effectively
Excellent command of English
You need to be located in Poland

Nice to have:

Skilled in integrating Assembler code with COBOL, PL/I, or Java applications
IBM Certified System Programmer and z/OS Mastery certifications are advantageous

Your future role

Develop, test, and optimize Assembler code for mainframe environments.
Maintain and improve existing legacy Assembler applications to align with evolving business requirements.
Work closely with cross-functional teams to integrate Assembler modules with COBOL and Java systems.
Enhance system performance by utilizing monitoring tools such as IBM RMF and OMEGAMON.
Diagnose and resolve complex technical issues through advanced debugging techniques.
Provide guidance and mentorship to junior developers, facilitating knowledge exchange sessions.
Participate in planning and executing system modernization initiatives and technology upgrades.

What we offer

A budget to spend on benefits that suit you, on top of your salary. Open colleagues, an environment that encourages proactivity, creativity, cooperation and openess. Contribution to practice development by shaping fit-for-purpose approaches and methodologies for Deloitte clients. Fast-paced development in a dynamic, high growth environment. Work with Deloitte clients locally and globally, delivering high-impact solutions to complex challenges and helping them drive exceptional performance.

Selection process

Stage 1 - Send your CV in word or pdf format in English.
Stage 2 - Join an HR screening
Stage 3 - Attend a Hiring Manager interview (online)
Stage 4 -Attend our client online interview

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