John Ternus: an engineer takes the helm at Apple
The shift to a CEO with a strong background in hardware and engineering is strategic
The change marks not only the end of the Cook era, but also a strategic shift - towards a CEO with a strong background in hardware and engineering.
Who is John Ternus?
John Ternus, born in 1975, is a mechanical engineer and has been with Apple since 2001. His career has largely unfolded away from the limelight - but at the heart of product development.
In 2001 he joined the product design team, working on on the Apple Cinema Display, among other projects, becoming vice president of hardware engineering in 2013. In 2021, Ternus was promoted to senior vice president of hardware engineering, and was responsible for iPhone, iPad, Mac, Apple Watch, AirPods and Vision Pro. He played a central role in the transition to Apple Silicon (M series), which gave Apple greater technological independence, better energy efficiency and higher performance.
According to official sources, Ternus will take over as CEO from 1st September 2026; Tim Cook will move into the role of executive chairman.
Apple under Jobs and Cook
Steve Jobs shaped Apple as a hardware-centric company that vertically integrates design, software and components. Products such as the iPod, iPhone and Mac defined entire markets through control over the entire system.
The Cook era was more about scaling, supply chains and capital discipline. Tim Cook took over in 2011 and transformed Apple from a product champion into a global operations behemoth. Market capitalisation grew to around $4 trillion, an extremely efficient, global supply chain was developed, along with diversification into services including Apple Music, Pay and TV+. There was also more of a focus on sustainability and resilience in procurement.
Cook himself had his roots in operations and supply chain management - a skill set that was crucial in the 2010s.
Why hardware expertise is strategic today
With Ternus taking over, the context is changing. The coming years will be characterised by physical bottlenecks rather than purely digital scaling.
Chips are the limiting factor for AI performance rather than algorithms, and energy is becoming a cost and an important factor for datacentre planning, at a time when AI workloads are driving up electricity consumption massively. Meanwhile, resources and manufacturing are gaining geopolitical significance, with subsidies, tariffs, semiconductor laws and nearshoring affecting markets.
Under these conditions, compute hardware is no longer a ‘commodity’ but a strategic bottleneck. Executives must understand how chips are designed, procured and integrated, why energy efficiency is important strategically, and how vertical integration creates resilience.
Appointing a CEO with a deep understanding of engineering is not a throwback but a response to new realities.
Different times call for different skills
Each stage of a company’s development requires different skills in corporate leadership. Whilst software and product excellence and product was central for a long time, the focus today is shifting to infrastructure, energy and physical assets. And not just at Apple.
Oracle seems also to be applying the same logic, securing the expansion of its AI infrastructure by hiring executives from the energy and industrial sectors.
Oracle has appointed Hilary Maxson as its new CFO. She previously served as group CFO at Schneider Electric. Her background in energy and infrastructure finance is a good fit for a company whose growth increasingly depends on datacentres, servers, cooling and GPUs. Oracle itself emphasises that it is precisely such capital- and energy-intensive structures that are likely to make up the bulk of its business in future.
The next phase of the tech industry will be driven less by pure software ideas and more by mastery of the physical foundations of digital systems. Executives with expertise in hardware, energy and infrastructure are no longer the exception, but a strategic advantage.
This article first appeared on Computing Deutschland