Mainframe Engineer

CompanyImpellam Group

LocationLondon Area, United Kingdom

Posted At2/20/2026

UK Visa Sponsorship Analytics

Analytics are greyed out due to low classification confidence (39.0%).

Occupation Type

Plumbers and heating and ventilating installers and repairers

Occupation Code Skill LevelMedium Skilled

Sponsorship Salary Threshold

£41,700 (£21.38 per hour)

Standard minimum applies

Above analytics are generated algorithmically based on job titles and may not always be the same as the company's job classification. You can also check detailed occupation eligibility, and salary criteria on our UK Visa Eligible Occupations & Salary Thresholds page.

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Description

Mainframe Engineer

Hybrid Working – London – 2 days a week on site.

Financial Services

Lorien's leading banking client is looking for a n experienced Mainframe Engineer, this person will support the test environments to enable delivery of features to mobile/online banking customers. The person will have hands-on experience with Mainframe Technologies, along with an understanding of AWS Services

This role is based in London.

This role will be Via Umbrella.

Working in a Hybrid Model of 1 day a week on site.

Key Responsibilities:

Provide expert support and timely resolution of environment issues focusing on mainframe systems and related infrastructure.
Work on test data support requirement for the teams within Digital Channels
Collaborate closely with DataPower and AWS teams to understand integration points and troubleshoot cross-platform dependencies.
Monitor AWS cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows.

Implement best practices for environment stability, performance tuning, and security compliance.

Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing.

Communicate effectively with cross-functional teams including developers, infrastructure engineers, and project managers to ensure timely resolution of issues and alignment on priorities.

Work on automation using but not limited to Python, Shell scripting, and GitLab pipeline.

Required Skills and Qualifications:

Proven experience in mainframe environments, particularly with CICS webservices, ZOS Connect EE, DB2, and batch processing.
Strong skills in mainframe transaction management, JCL, and system debugging tools.
Familiarity with SOAP, WSDL, JSON, and integration patterns such as SOA and RESTful APIs.
Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation.
Excellent verbal and written communication skills to effectively articulate technical issues and solutions.
Ability to work under pressure and manage multiple priorities in a fast-paced environment.

Strong problem-solving skills and a proactive approach to identifying and resolving issues.

Desirable:

Python knowledge, Experience with Gitlab pipeline, Improvement/Automation with AI

IND_PC3

Mainframe Engineer

CompanyImpellam Group

LocationLondon Area, United Kingdom

Posted At2/20/2026

UK Visa Sponsorship Analytics

Analytics are greyed out due to low classification confidence (39.0%).

Occupation Type

Plumbers and heating and ventilating installers and repairers

Occupation Code Skill LevelMedium Skilled

Sponsorship Salary Threshold

£41,700 (£21.38 per hour)

Standard minimum applies

Description

Mainframe Engineer

Hybrid Working – London – 2 days a week on site.

Financial Services

This role is based in London.

This role will be Via Umbrella.

Working in a Hybrid Model of 1 day a week on site.

Key Responsibilities:

Provide expert support and timely resolution of environment issues focusing on mainframe systems and related infrastructure.
Work on test data support requirement for the teams within Digital Channels
Collaborate closely with DataPower and AWS teams to understand integration points and troubleshoot cross-platform dependencies.
Monitor AWS cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows.

Implement best practices for environment stability, performance tuning, and security compliance.

Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing.

Communicate effectively with cross-functional teams including developers, infrastructure engineers, and project managers to ensure timely resolution of issues and alignment on priorities.

Work on automation using but not limited to Python, Shell scripting, and GitLab pipeline.

Required Skills and Qualifications:

Proven experience in mainframe environments, particularly with CICS webservices, ZOS Connect EE, DB2, and batch processing.
Strong skills in mainframe transaction management, JCL, and system debugging tools.
Familiarity with SOAP, WSDL, JSON, and integration patterns such as SOA and RESTful APIs.
Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation.
Excellent verbal and written communication skills to effectively articulate technical issues and solutions.
Ability to work under pressure and manage multiple priorities in a fast-paced environment.

Strong problem-solving skills and a proactive approach to identifying and resolving issues.

Desirable:

Python knowledge, Experience with Gitlab pipeline, Improvement/Automation with AI

IND_PC3