Pieter Rautenbach Email & Phone Number

Cape Town, Cape, Za

Engineering Director and former General Manager for Takealot's Stellenbosch office, a strategic initiative. I am responsible for leading teams to develop a large-scale e-commerce platform using agile practices, with a strong background in machine learning, system architecture and engineering best practices.I have expanded ML from 3 people to 3 distributed teams covering 8 domains. I have managed up to 60 people. Catalogue◦ Pivotal in defining and executing on an architectural roadmap for the catalogue systems to improve system scalability, consistency and reliability◦ Revamping Product Information Management (PIM) ◦ Consolidation of inbound feeds for stock, pricing and metadata (ETL) and outbound marketing feeds ◦ Data quality and curation (Master Data Management)Retail◦ Pricing and Stock Management at scale, using dynamic pricing models ◦ Buyer process optimisation◦ Competitive pricing analysisMarketplace◦ Tools and utilities for seller listingsML: Discovery◦ Search, ranking, dynamic facets, spelling correction, query intent◦ Recommendations ◦ Event tracking system ◦ Analytics and metrics ◦ A/B testing platform ML: Merchant◦ Customer behaviour and segmentation ◦ Customer Lifetime Value modelling◦ Automated customer product review moderation◦ Personalised direct marketing◦ Modelling of sensitive productsML: Supply Chain & Logistics◦ Driver capacity delay optimisationGeneral Management ◦ Setting up a satellite software development office in Stellenbosch: Business case, budgeting, recruitment and functional design◦ Recruitment: Process Automation, interviewing database, graduate programmes, career days ◦ Development practices and processes, including the introduction of agile development, continuous integration and other forms of automation ◦ Creating new teams from scratch◦ Facilitation, mentorship and practical performance management◦ Career progression, roles and responsibilities

Stellenbosch, Wc, Za

Start-up all-rounder responsible for building the team, overall system architecture, product development, hands-on machine learning, strategic thinking and organisational structure and mentoring. Domains◦ Health care: Fraud, waste and abuse detection◦ Education: Learner interventions, data warehousing◦ Supply chains: Inventory management and optimisationProducts◦ Bespoke online education portal for descriptive analytics, machine learning and data science Projects◦ A bespoke, scalable workflow management system and extensible platform for ETL, data warehousing and machine learning◦ An in-house framework for automated testing of data workflows Other◦ Building a cross-functional team that operates on agile principles ◦ General operational management◦ Business and technical strategic decision making

Building and managing the architecture competency for MXit with regards to business, information and system architecture for the alignment of goals, objectives and processes. Specific attention is paid to best practices, business intelligence, procedures, standards and automation. Continual design and development of several large scale systems. Managing and building an architecture team of two people and a business intelligence team of six people.Projects◦ Developer Ecosystem: Team lead, design and implementation of an app store and all supporting systems; team of 4 people◦ Technical lead of APIs for platform and application developers◦ Value-Added Services (VAS) switch for aggregating VAS providers for airtime and electricity payments: Team lead, design and implementation; team of 4 peopleBusiness Intelligence/Data Science◦ User data warehouse and mathematical models for churn analysis: Design and technical lead◦ Consolidation of legacy reporting systems and reports◦ Redesign and replacing legacy reporting systems with modern and automated technologies◦ Assisting the product team with deep analyses and report definitionsOther◦ Defining the vision and mission for Pondering Panda, MXit’s consumer insights company◦ Steering committee chairman (2011)◦ Assisting auditors regarding data analysis, control checks and corporate governance◦ Internal representative for technical due diligence during the acquisition by World of Avatar (Pty) Ltd◦ In-house notification system (hardware and software) for notifying developers of broken builds from the build server using a USB LED device (spare time project)

Architecture and analysis of software products and systems across five development teams (40 developers) and enterprise-wide business processes, with special focus on development processes and automation; System architecture regarding large scale client-server, distributed and fault-tolerant systems; Steering committee member for approval of development requests; Frequent liaising with external parties, including business partners and legal advisors.General◦ Scrum/Agile practitioner◦ Business/Requirements Analysis and Scrum story writing◦ Software Development Life Cycle (SDLC): Design and implementation of several SDLCs regarding process, procedures and document artifactsDevelopment environment◦ Procedures and administration of all code repositories, issue tracking, continuous integration and other automation systems, and internal documentation wiki◦ Formal Test-Driven Development training (organised and attended)Products◦ Idols SA Voting Platform: Design and technical lead◦ MXit EVO client application suite: Product Owner and managing an outsourced development team of three people, including contract negotiations◦ Suggest-a-Friend recommendation system: Design◦ Fantasy league game for the 2010 FIFA Soccer World Cup: Design◦ Credit topup and banking integration system: DesignOther◦ Conducting developer interviews and technical inductions

Managing a team of two people for services development, a team of two people for ejabberd development and a team of two people for ejabberd operational support; Retain previous role as lead developer for the Jabber/XMPP IM core.Products◦ Content portal for content delivery by platform integrators: Design and team lead; system is a major source of revenue◦ Dynamic chatrooms: Redesign and team lead◦ Premium Rated SMS integration system: Design and development◦ Developing the ejabberd IM platformTraining◦ Erlang/OTP training of new employees◦ Jabber/XMPP training of new employeesOther◦ Defining and implementing a 3-tier operational support structure ◦ Maintaining the relationship with Process-One, the maintainers of ejabberd◦ Internal representative for technical due diligence during sale of shares to MIH Holdings (Pty) Ltd (Naspers)

Lead developer for the Jabber/XMPP IM core based on the ejabberd Open Source platform.Products◦ ejabberd: Development, operational support◦ Advertising platform: Design and development for delivering text-based and graphical impressions to mobile phones using a custom in-house modelling system with adaptive prediction of available inventory; system is still the main source of revenueOperational◦ 24/7 standby and support◦ Server setup and fine tuning (Linux/Windows)◦ Maintaining the relationship with Process-One, the maintainers of ejabberd

Pretoria, Gauteng, Za

Lead developer for Cellfind’s LBS product suite, including Look4me, a peace of mind service to locate friends and family, and Look4help, a mobile panic button to send a distress message with your location to friends and family.Development, design, operational and customer support.

Unit testing of GSM messaging libraries all written in ANSI C.

Prototyping an optical motion sensor to detect the velocity of moving froth.

M.Sc.Eng., Digital Signal Processing, Machine Learning, Kalman Filtering And Structure From Motion

B.Eng., Electronic Engineering, Computer Science