01
Dr Seeiso Moeletsi
Director — Optimal South Africa
Dr Moeletsi is a distinguished medical doctor whose career uniquely bridges the fields of healthcare and industry. With a strong background in the mining and industrial sectors, he has leveraged his knowledge and experience to drive innovation and efficiency in physical asset management solutions, focusing on optimising asset performance and sustainability.
02
Mkululi Dube
Executive Director — Optimal Africa
Executive Director leading Optimal's Africa strategy and regional expansion across sub-Saharan markets. Mkululi brings deep expertise in asset-intensive industry operations and business development across the African continent.
03
Benson Zaaruka-Tjitjaerera
Director — Optimal Namibia
Director of Optimal Namibia, leading the firm's operations from the BlackRoof Estate in Okakarara. Benson brings regional expertise in asset management delivery across Namibia's asset-intensive sectors.
04
Bongi Ndlovu
Principal Consultant — Pharma
Bongi is a highly versatile quality and CMC leader with over 15 years of experience across small pharmaceuticals, biotherapeutics, biopharmaceutical CDMOs, and advanced therapy. She brings hands-on expertise in QC, analytical methods development, GMP compliance, regulatory submissions (IND/IMPD), inspection readiness, and multi-site technology transfer across Europe, the USA and Asia. A Masters graduate in Medical Molecular Microbiology and Immunology from the University of Aberdeen, Bongi leads Optimal's pharma sector advisory practice.
05
Christabel Phiri
Principal Consultant
Christabel is a mechanical engineer and technical educator with an MPhil in Mechanical Engineering, an MBA, and approximately 15 years of tertiary engineering education and technical training experience. She leads Optimal Academy — owning curriculum design and the delivery of technical courses, webinars and workshops — and facilitates the Maintenance Planner Short Learning Programme delivered jointly by Optimal and Tshwane University of Technology. A registered facilitator, assessor and moderator, and a National Examiner and Chief Marker for TVET colleges under DHET, she brings maintenance planning, CMMS/SAP work management and reliability-centred maintenance expertise to Optimal's advisory and training practice.
06
Finlay Craig
Client Relationship Manager — UK & Europe
Finlay leads client engagement across Optimal's UK operations, managing a multidisciplinary team spanning engineering projects and digital strategy. His role encompasses sales outreach, CRM oversight, webinar delivery, and digital content — ensuring every client interaction drives measurable outcomes. A Robert Gordon University graduate, Finlay brings a distinctive blend of technical project coordination, digital marketing, and operational leadership to Optimal's growth agenda.
07
David Oztas
Office Administrator
David is an administrative and client service professional with more than eight years of experience across client relations, document control, end-to-end case management and team leadership. He spent over six years as a Migration Consultant and Administrative Officer with Australian Migration Specialists, managing complex visa documentation, liaising with government departments and guiding international clients through the full application process. At Optimal he supports day-to-day office administration, client correspondence, document control and reporting, bringing a dependable, detail-focused approach to keeping delivery running smoothly.
08
Julia Teleki
Asset Performance Associate
Julia is an adaptable operations and administrative professional with experience across departmental coordination, reporting, customer support, and fast-moving business environments. Her background includes duty and department management, staff scheduling, task allocation, internal communication, operational documentation, data entry, and compliance records. With training in events management and strong digital skills across Microsoft Office, Google Workspace, and collaboration tools, Julia supports asset performance teams through structured coordination, accurate records, reporting discipline, and clear stakeholder communication.
09
Tinotenda Njanjari
Asset Performance Engineer
Tinotenda is a mining engineer with a reliability and asset performance focus, supporting maintenance planning, operational reporting, and asset performance optimisation in mining environments. At Kiboko Projects, he develops structured tracking systems for equipment availability, utilisation, downtime, and maintenance scheduling, conducts root cause analysis on recurring failures, and works closely with operations teams to improve asset reliability and production outcomes. A BEng (Hons) Mining Engineering graduate and ECSA Candidate Engineer, Tinotenda brings a structured, data-driven approach to asset performance monitoring and continuous improvement.
10
Sravanthi Sunkara
Project Administrator
Sravanthi is a PRINCE2-certified project management professional with an MSc from Robert Gordon University and a background spanning energy, engineering, and supply chain. At Optimal she provides project administration support across live client engagements, bringing structured methodology, procurement expertise, and cost control rigour to complex multi-sector programmes. Her prior experience includes roles at SLB and Honeywell UOP, where she developed deep capability in ERP systems, materials management, and project planning.
11
Kantso Mokonyama
Senior Asset Performance Engineer
Kantso is a condition monitoring and industrial IoT specialist with a BTech in Mechanical Engineering from the University of Johannesburg, an MPhil in Mechanical Engineering in progress, and Mobius Category II vibration certification. He has led condition monitoring programmes on pumps, cyclones, crushers and HPGRs at mine sites across the UK, Germany, Zambia, Indonesia, Mozambique and South Africa, working with Industry 4.0 platforms including OSIsoft/AVEVA PI, Azure IoT, Power BI, XMPro and Seeq. His work spans vibration diagnostics, predictive maintenance modelling, SAP PM master data and turning real-time asset data into decisions that reduce unplanned downtime.
12
Clive Nkomo
Senior Asset Performance Engineer
Clive is an ISO 18436-2 Category II certified vibration analyst with six years of experience diagnosing faults on rotating machinery — pumps, motors, gearboxes, fans and conveyors — across mining and heavy industry. He specialises in spectral, waveform and trend analysis, baseline and alarm setting, root cause investigation, and translating condition data into clear, evidence-based diagnostic reports for engineering teams and clients. He complements this field expertise with a data-analysis and software background spanning SQL, data pipelines and reporting tools, applied to refining measurement routes and platform-based analytics.
13
Pieterjan le Roux
Senior Asset Performance Engineer
Pieterjan is a senior automation and instrumentation professional with more than 21 years of experience across mining and heavy industry. His background spans artisan, maintenance planning, foreman, master technician, automation engineer, and Head of Instrumentation and Automation roles, with deep expertise in Siemens PCS7, TIA Portal, WinCC, SIMOCODE, drives, industrial networking, and process optimisation. He brings hands-on leadership in plant reliability, maintenance strategy, real-time condition monitoring, root cause analysis, critical spares, and team development across complex industrial operations.
14
Dirk van Niekerk
Maintenance Planning Specialist
Dirk is a maintenance planning and asset management professional with more than 28 years of mining and engineering experience at De Beers, including 13 years in a dedicated Maintenance Planner role. A Red Seal Fitter & Turner by trade, he combines hands-on treatment-plant knowledge — crushers, screens, conveyors, mills, pumps and magnetic separators — with CMMS master-data control, maintenance-strategy deployment, six-monthly shutdown planning, performance analytics and root cause failure analysis. He currently manages repairable materials, supplier quality and service-level performance for fleet support.
15
Selvanus Valombola
Field Support Technician
Selvanus is a senior heavy-duty diesel mechanic and millwright with more than 15 years of experience across large-scale mining, plant maintenance and project installation work in Namibia and West Africa. His background spans preventative and planned maintenance, engine diagnostics, rebuilds and overhauls, hydraulic and pneumatic systems, pump and dewatering installations, and plant expansion and commissioning. He holds a Condition Monitoring Diploma covering vibration analysis, oil analysis, laser alignment, thermal imaging and ultrasound, and brings disciplined safety leadership and hands-on fault finding to field support across fixed and mobile plant.