Mainframe Assembler Developer

JR United Kingdom; Greater London; Hybrid; GBP 40,000 - 80,000; Full time

Job summary

An established industry player is seeking a skilled Mainframe Assembler Developer to enhance legacy banking systems. This role involves leveraging expertise in IBM Mainframe Assembler and related technologies to ensure seamless banking operations. The ideal candidate will thrive in a high-volume, regulated environment and possess a strong understanding of z/OS, JCL, and DB2. If you are proactive, detail-oriented, and ready to make an impact in the financial sector, this opportunity is perfect for you. Join a forward-thinking team and contribute to critical projects that shape the future of banking technology.

Qualifications

• Proven experience in IBM Mainframe Assembler development.
• Strong understanding of z/OS, JCL, TSO/ISPF, VSAM, and DB2.

Responsibilities

• Support and enhance legacy systems critical to banking operations.
• Work in high-volume, regulated environments.

Skills

IBM Mainframe Assembler (HLASM)

z/OS

JCL

TSO/ISPF

VSAM

DB2

COBOL

CICS

PL/I

Problem-solving skills

Agile

Waterfall

Communication skills

Job description

Social network you want to login/join with:

Gibbs Consulting IT Services & Solutions

Location:

England, United Kingdom

Job Category:

Other

EU work permit required:

Yes

Job Views:

5

Posted:

05.05.2025

Expiry Date:

19.06.2025

Job Description:

We are currently seeking a skilled and proactive Mainframe Assembler Developer to join a leading financial institution. You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Role Overview:

• Job Title: Mainframe Assembler Developer
• Location: Leeds/Halifax/Edinburgh/Hybrid (2 days per week onsite)
• Contract Type: Contract
• Duration: 12 months initially
• Sector: Banking

Required Skills & Experience:

• Proven experience with IBM Mainframe Assembler (HLASM) development.
• Strong understanding of z/OS, JCL, TSO/ISPF, VSAM, and DB2.
• Experience in the banking or financial services sector is highly desirable.
• Familiarity with COBOL, CICS, or PL/I is a plus.
• Solid problem-solving skills and attention to detail.
• Experience working in Agile or Waterfall environments.
• Excellent communication skills, both written and verbal.

Nice to Have:

• Knowledge of regulatory and compliance requirements in the banking domain.
• Exposure to system modernization or migration projects.
• Experience with automated testing tools for mainframe environments.

Please feel free to contact me – Daisy Nguyen ([email protected]) / T: 0208 619 0877 at Gibbs Consulting for a confidential chat to know more details about the role.

Please also note: Due to the volume of applications received for positions, it will not be possible to respond to all applications, and only applicants who are considered suitable for an interview will be contacted.