Summary
Overview
Work History
Education
Skills
Websites
Certification
Timeline
Generic

Johan van Heerden

Enterprise, Solutions & Systems Architect
Cape Town,WC

Summary

Experienced Information Technology and Services professional with a MSc focused on Operations Research, and a total of 25 years of industry experience. Skilled in various application architecture styles including monolithic, 3-tier, microservice, service orientated and event-driven architectures. Specialist Data Architect with a proven track record designing Data Warehouses, OLTP applications, Customer Data Platforms; and, Big Data Platforms, using SQL and NoSQL database technologies.

Overview

27
27
years of professional experience
7
7
years of post-secondary education
5
5
Certifications

Work History

Senior Specialist: System Architect

Altron Systems Integration
Cape, South Africa, South Africa
11.2009 - Current
  • Responsible for developing and implementing enterprise and solution architectures in the Telecommunications and Retail domains.
  • Lead Solutions Architect modernising on-premise legacy applications, transforming monolithic architectures into cloud-native microservices running in AWS.
  • Employs the TM Forum frameworks defining boundaries for domains implementing microservices, creating domain information models, and, exposing microservice functionality as Open APIs.
  • Develops Architecture Roadmaps implementing TOGAF's ADM, working with the delivery team assuring compliance and keeping the architecture artifacts aligned.
  • Member of a business development team creating and presenting bespoke architectures to potential customers.
  • Responsible for responding to Requests for Proposals and Information, focusing on solution and system architecture.
  • Where appropriate, TM Forum's Open Digital Architecture and Open APIs are used to communicate solution architecture to potential customers.
  • Partake in Altron's mentoring program as a mentor, guiding mentees to achieve their goals and potential in the DevSecOps discipline.

Database Architect

Altech ISIS, Cape Town
Cape, South Africa, South Africa
11.2000 - 11.2009

Responsible for managing, designing, developing, integrating and maintaining operations (OSS) and business support systems (BSS) for a South African Cellular Telecommunication Service Provider. Responsible for systems supporting customer administration, service provisioning and network activation, customer interaction management, service request management, business intelligence, and fraud management.

Responsibilities included:.

  • Direct interaction with clients, including managers and executives, to determine requirements and sell solutions.
  • Develop conceptual and architectural designs, including functional and technical design specifications for customer approval and development.
  • Provide advice, guidance and expertise in developing proposals and strategies for system design activities.
  • Design and present proposals to clients exploring new business opportunities.
  • Estimate time and effort for budgetary and resource planning purposes.
  • Analyse user requirements, assess impact on systems, and implement system changes.
  • Define architectural standards and assure compliance.
  • Train and mentor team members.

Process Systems

BHP Billiton
Richards Bay, South Africa, South Africa
04.1997 - 11.2000

Employed by BHP with the responsibility of designing, developing and maintaining systems implementing Environmental Management, Primary Healthcare, and, Occupational Health and Safety Management. Implemented Manufacturing Execution Systems managing the Anode Carbon Plant, Casthouse and Potrooms at its Bayside Aluminium smelter. Designed and developed a data warehouse employed by management accountants for financial and KPI reporting to Billiton executives and shareholders.

Responsibilities included:

  • Gather and document user requirements, translating requirements into functional specifications.
  • Communicating requirements to suppliers and assist in software development, quality assurance, implementation, user training and system maintenance.
  • Document and implement interfaces between manufacturing execution systems and SAP ERP.
  • Rotate between departments solving systems functionality and data integrity problems.
  • Evaluate software offerings, proposing and motivating procurement.
  • Assist team members in understanding business functions and the technology employed by systems.

IT Consultant

Columbus Stainless (Pty)Ltd
Middelburg, South Africa, South Africa
01.1995 - 04.1997

Responsible for the development and maintenance of Quality Control, Materials Ordering, and, Production Planning, Scheduling and Routing systems.

Responsibilities included:.

  • Participation in JAD sessions transforming user requirements into functional and technical specifications.
  • Designing, developing and maintaining software, writing user manuals and provide training.
  • Day-to-day running of functional areas including Material Scheduling, Order Allocation, Production Planning, Quality Parameter Control, Level 2 and 3 integration, and Management Reporting.

Education

MSc - Operations Research

Stellenbosch University/Universiteit
07.2002 - 08.2005

Hons BSc - Applied Mathematics

Stellenbosch University
01.1994 - 12.1994

BSc - Computer Science

Stellenbosch University
01.1991 - 12.1993

Skills

    System Architecture Design

Cloud Architecture Design

Business and Technical analysis

Database and Data Architecture

Technical Writing

System Integration Architecture

Certification

TMForum Business Development Manager

Timeline

AWS Certified Solutions Architect – Associate

02-2021

Visualitics: Data Science Certificate

10-2017

TMForum Business Development Manager

03-2016
TOGAF Certification Program
02-2016

Stellenbosch University: Systems Engineering

12-2009

Senior Specialist: System Architect

Altron Systems Integration
11.2009 - Current

MSc - Operations Research

Stellenbosch University/Universiteit
07.2002 - 08.2005

Database Architect

Altech ISIS, Cape Town
11.2000 - 11.2009

Process Systems

BHP Billiton
04.1997 - 11.2000

IT Consultant

Columbus Stainless (Pty)Ltd
01.1995 - 04.1997

Hons BSc - Applied Mathematics

Stellenbosch University
01.1994 - 12.1994

BSc - Computer Science

Stellenbosch University
01.1991 - 12.1993
Johan van HeerdenEnterprise, Solutions & Systems Architect