Mainframe Developer (Salesforce Integration)
Absa
n/a - n/a
R500–600 per hour
Johannesburg, City of Johannesburg Metropolitan Municipality
Mainframes
Salesforce
COBOL
Integration
Database
Role
Role Overview
We are seeking an experienced Mainframes Developer with deep expertise a strong understanding of Salesforce platforms to lead the development, modernization, and integration of core banking systems.
This role is critical in ensuring the stability, security, and scalability of high-volume transaction processing systems while driving innovation through seamless integration with modern platforms such as Salesforce and cloud-based solutions.
Key Responsibilities
- Lead the design, development, and maintenance of core banking applications on mainframe systems.
- Ensure high availability, resilience, and performance of systems supporting payments, accounts, and transaction processing.
- Translate business and regulatory requirements into secure, scalable, and compliant technical solutions.
- Provide technical leadership, mentorship, and oversight to engineering teams across mainframe and Salesforce domains.
- Oversee batch processing workflows (JCL) and ensure timely execution of critical financial processes.
- Diagnose and resolve production issues (e.g., abends, data inconsistencies) within SLA timelines.
- Work extensively with IMS and DB2 databases in high-volume transactional environments.
- Manage and configure PSB/PCB structures within IMS environments.
- Integrate mainframe systems with distributed platforms using MQ, APIs, and middleware.
- Design and implement integrations between mainframe systems and Salesforce platforms, enabling real-time and batch data exchange.
Technical Skills & Requirements
Mainframe Technologies
- Extensive experience in enterprise mainframe environments within banking or financial services.
- Strong understanding of z/OS services, utilities, and performance tuning.
Programming Languages
- Advanced proficiency in:
- COBOL
- IMS DB
- DB2
Salesforce Expertise
- Strong experience with the Salesforce Platform, including:
- Apex development and triggers
- Lightning Web Components (LWC) and Aura components
- Salesforce APIs (REST/SOAP) for integration
- Data modeling, workflows, and automation (Flow, Process Builder)
- Experience integrating Salesforce with legacy systems (especially mainframe environments)
- Familiarity with Salesforce Data Cloud / Datacloud and data synchronization strategies
- Understanding of Salesforce security model, governance, and best practices
Qualifications
- Bachelor’s degree in Computer Science, Information Technology, or related field
- 5-8 years of experience in mainframe development, preferably in banking or financial services
Core Competencies
- Strong IMS database design and management expertise
- Hands-On Experience with: IMS DB, DB2, IBM Explorer, JCL and Datacloud
- Expert-level COBOL development for transactional systems
- Advanced JCL scripting and batch scheduling
- Ability to manage datasets/files in secure mainframe environments
- Deep understanding of z/OS services and utilities
- Experience with MQ (message queuing) and API-based integrations
- Ability to bridge legacy systems with modern platforms (Salesforce, cloud)
Other Technologies (Advantageous)
- Salesforce Developer Certification
- MuleSoft Developer Certification
- AWS Fundamentals (cloud integration and modernization)
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