The conversation around technology modernisation continues to evolve, for several years the priority was speed: moving to cloud, simplifying platforms, and removing legacy systems. These steps remain important, but we are seeing the focus in 2025 shifting to more than just delivery velocity towards sustainability, transparency and operational resilience.

Across the UK and Europe a new blend of pressures is emerging, with high energy prices, ESG expectations becoming embedded in board discussions and regulators asking tougher questions about resilience and control across IT platforms and their sourcing.

This combination is driving a more thoughtful approach to technology strategy, and whilst Cloud still plays a central role organisations are now expecting more from the platforms they build. They are looking for visibility beyond just simple dashboards and metrics, they want a clearer understanding of how resources are used, where waste occurs and how to balance performance, risk and environmental impact. Observability is moving from a technical function to a board-level priority.

We are also seeing a shift towards sustainable platform design. This includes workload scheduling aligned to carbon intensity, proactive right-sizing, and tagging policies to identify low-value or unused services. In sectors such as financial services, this is being framed as part of risk management rather than simply a cost discussion.

Organisations leading in this space are focusing on a few core actions:

  • Establishing clear visibility across cloud and hybrid environments, with meaningful insight into usage, spend, and environmental impact
  • Automating guardrails that enable secure and efficient delivery without adding unnecessary complexity
  • Creating shared governance across technology, finance, and ESG teams, supported by reliable data and clear ownership

This does not require a complete rethink of modernisation strategies but an evolution towards greater clarity and intent, with sustainable modernisation becoming the next logical step in responsible platform design. The goal is to build systems that scale without excess, support new capability without waste, and stand up to scrutiny when challenged.

"Modern platforms must do more than support delivery. They must provide visibility, enable control, and withstand challenge."

For leaders planning the next phase of their cloud and platform journey, the focus should now be on how to modernise responsibly. This means delivering long-term value, reducing operational noise, and improving the resilience of critical technology foundations.