Full Stack Developer (Chief Expert) 0362

Recruiter:

Open Source (Pty) Ltd

Job Ref:

JHB001753/DL

Date posted:

Thursday, April 9, 2026

Location:

Menlyn, South Africa

SUMMARY:
We are seeking a highly experienced Full Stack Developer (Chief Expert) to lead the design, development, and optimisation of complex enterprise integration solutions within a global IT environment.

This is a strategic, hands-on role suited to a senior expert who thrives in large-scale, high-volume systems and can drive innovation across integration, cloud, and financial platforms.

POSITION INFO:

About the Role

You will play a key role in delivering a large-scale eInvoicing platform, enabling seamless exchange of financial documents across internal systems and external partners.
This role combines architecture, hands-on development, and leadership, requiring deep expertise in SAP, enterprise integration, and modern cloud technologies.

Key Responsibilities

Architecture & Integration

Translate business requirements into scalable technical designs aligned with SAP, EAI, and cloud platforms
Design and lead integrations across complex environments (120+ interfaces)
Define and implement robust message formats (IDoc, XML, JSON)
Evaluate and modernise existing integration landscapes

Development & Delivery

Perform hands-on Java development for enterprise integration components
Design and implement IDoc to XML/JSON transformations for partner and banking integrations
Lead end-to-end implementation across multi-system environments
Support deployment and production readiness

Monitoring & Observability

Build end-to-end dashboards (e.g. Splunk or similar) integrating upstream and downstream data
Implement monitoring, logging, and observability for distributed systems
Provide real-time visibility into system health, transactions, and performance
Enable proactive issue detection through early warning indicators

Cloud & Platform Engineering

Work with Azure Cloud and SAP Cloud Platform (SCP)
Drive modernisation using event-driven architectures (Kafka, cloud-native solutions)
Collaborate with DevOps teams on CI/CD, automation, and infrastructure

Testing, Reliability & Optimisation

Lead test automation across integration, end-to-end, and regression testing
Drive performance tuning, capacity planning, and system scalability
Define operational runbooks and deployment processes
Ensure high availability and reliability across integration platforms

Leadership & Strategy

Engage stakeholders to gather, prioritise, and refine requirements
Lead migration planning and recommend future-state architectures
Mentor and coach developers and engineers
Drive best practices across design, testing, and delivery

Essential Skills & Experience

Strong Java development experience in enterprise environments
Deep expertise in enterprise integration (EAI) and middleware patterns
Solid SAP FI knowledge and integration experience
Hands-on experience with IDocs and mapping to XML/JSON
Experience building E2E monitoring dashboards (e.g. Splunk or similar)
Strong experience with Azure Cloud and SAP Cloud Platform
Proven ability to design and operate large-scale integration landscapes
Strong stakeholder engagement and communication skills

Advantageous

Experience with eInvoicing or financial systems
Apache Kafka / event-driven architectures
SAP integration technologies (PI/PO, CPI, BAPI)
Docker, Kubernetes, AKS
CI/CD pipelines (Azure DevOps, GitHub Actions, Terraform)
Security and compliance in financial integrations
Synthetic monitoring, SLOs, and alerting frameworks
Dashboarding and reporting tools (WIZ, BI tools)
AI-driven automation or analytics within integration environments

Qualifications

Degree in Computer Science, Software Engineering, or related field
5+ years’ experience in enterprise integration, middleware, or systems architecture
Proven delivery of complex integration solutions across multiple systems

Apply now!!

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