Adel Al-Saleh, hired at the start of 2018 to staunch losses at T-Systems, told staff on Wednesday that the business would in future be "an integrated end-to-end IT player and reliable enabler for our clients' digitization".
American Al-Saleh, who gave himself two years to get the job done, has already acted to reduce T-Systems' German headcount by 5,600, close most local offices and hire 3,000 offshore staff to round out its software skills.
"We plough on," Al-Saleh told a briefing in Bonn, when asked what stage his restructuring drive had reached.
"We now have a portfolio that is fit for the marketplace - and the marketplace is changing dramatically," he added. "In reality, your transformation never stops."
The reshuffle at Europe's largest telecoms group will leave T-Systems with top-line revenues of 4 billion euros ($4.4 billion) - down from nearly 7 billion euros last year. Around 30,000 employees will serve 1,000 clients.
Several European telecoms have found themselves saddled with IT operations poorly placed to compete against more dynamic pure-play rivals. T-Systems has also struggled with the legacy of loss-making IT contracts struck by past management.
Al-Saleh is positioning T-Systems as a German-centric player offering a portfolio of services, with an emphasis on multinational companies like auto maker Daimler that generate the lion's share of its revenues.
Its operations span areas including the industrial internet, cyber-security, road charging and a practice that manages business applications offered by SAP.