Senior Mainframe Developer

Location: Oslo (NO)
Remote: 0%
Assignment Period: 01 Jun 2026 29 Jan 2027
Application Deadline: 16 May 2026
Language: English (Professional proficiency required)
Workload: 100%

Assignment Description

We are seeking a Senior Mainframe Specialist to support a strategic modernization initiative within the financial sector. The role focuses on migrating from Broadcom/CA technologies to alternative solutions in a complex enterprise environment. You will work closely with project teams to analyze existing mainframe technologies design replacement solutions and support migration and implementation activities. This is an excellent opportunity for an experienced specialist who enjoys working with critical infrastructure large-scale systems and modernization projects.

Job Responsibilities

• Analyze current use of mainframe technologies and software

• Design and evaluate replacement solutions and target architecture

• Support planning and execution of migration activities

• Collaborate closely with project teams and technical stakeholders

• Contribute to modernization and optimization initiatives

• Assist with scripting automation and system configuration tasks

Requirements

Must Have

• Strong knowledge and hands-on experience with IBM zOS

• Experience with Endevor configuration and administration

• Experience with cross-platform communication and integrations

• Knowledge of mainframe and midrange scripting languages

• Experience with Mainframe Unix System Services

• Experience working with enterprise mainframe environments

• Ability to work independently in complex technical projects

• Professional proficiency in English both written and spoken

• CV must be submitted in English

Good to Have

• Experience with Broadcom/CA tools such as Easytrieve Telon JCL Check CA Spool and TPX

• Knowledge of mainframe SDLC CI/CD and VSCode

• Understanding of midrange tools and integration with mainframe systems

• Experience with mainframe infrastructure including CICS IMS databases transaction managers and queue systems

• Experience from modernization or migration projects within enterprise environments

About Sperton

Sperton is a global recruitment and consulting firm with offices across Europe Asia and the Americas. We help companies find and manage top talent across borders delivering fast compliant and flexible recruitment consultant hiring and global mobility services.