Imogen FletcherChief Information Officer

Imogen Fletcher · Chief Information Officer · Australia

Six appointments between the bill and the field crew

Mar 2021 — Present

Chief information officer

Ollanvale Energy

Sector
Remote microgrids and isolated power generation under long-term supply contracts
Ownership
Private company; 70 per cent held by founders and senior staff, 30 per cent by an Australian superannuation fund
Company scale
A$410 million revenue in 2025–26
Employees
About 1,050
Geography
Cairns head office; forty-six power systems across northern Queensland, the Northern Territory and the Kimberley
Reporting to
Chief executive; reports quarterly to the board's audit and risk committee
Team
74 staff in four teams, plus a managed-service provider
Financial scope
A$22 million operating and A$11 million capital technology budget in 2025–26, including a managed-service contract of about A$7.5 million a year

Mandate

Make corporate, commercial and field systems dependable through the wet season and meet the cyber obligations in the company's supply contracts.

Outcomes

  • Moved corporate recovery to Brisbane for A$3.2 million; invoicing and customer notices ran through a thirty-one-hour head-office outage in March 2025
  • Delivered an offline job application to 380 field staff; same-day job closure rose from 54 to 89 per cent
  • Brought invoicing support in-house for about A$0.6 million a year; the annual indexation round fell from nine weeks to four
  • Prepared the annual risk-management report for board approval each year

Decisions in context

The CIO role combined two estates that had grown up separately. Corporate and commercial systems had been run as an office function, while station control systems belonged to operations. I kept that ownership clear but gave both one view of risk, one recovery plan and one supplier register. My first two years were spent on recovery and field systems, because the wet season exposed their weaknesses every year. The invoicing decision followed when the managed-service contract approached renewal. I report to the chief executive and present quarterly to the audit and risk committee, which also reviews the annual risk-management report before the board approves it. I am accountable for the technology budget and for the honesty of what reaches directors. Operations, commercial and finance executives own the decisions their systems support, and I try to make that line visible in every paper.

Reason for the move

Current appointment, which I intend to keep while adding one outside governance role.

Sept 2016 — Feb 2021

General manager, operational technology and field systems

Ollanvale Energy

Sector
Remote and isolated power generation
Ownership
Private company controlled by its founders
Company scale
About A$290 million revenue in 2019–20
Employees
About 820
Geography
Northern Australia; thirty-eight power systems by 2021
Reporting to
Executive general manager, operations
Team
21 engineers, analysts and technicians
Financial scope
A$5 million operating and A$4 million capital budget for operational technology and field systems

Mandate

Establish what the operational estate contained and bring supplier access and field tools under control.

Outcomes

  • Recorded 1,400 operational devices across thirty-eight stations in a single register
  • Routed supplier remote access to every station through one brokered gateway
  • Replaced paper and radio job dispatch at eight of fourteen regional bases
  • Fitted satellite terminals to the first 60 field vehicles

Decisions in context

I joined a power business that knew its engines, panels and batteries far better than its software. The remote operations centre's systems were well maintained, but nobody held a complete list of the devices connected to them or of the suppliers who could reach them remotely. My team spent the first year building that register with base technicians, often by flying to sites. The most exposed stations were those whose equipment suppliers maintained them over satellite links, using arrangements agreed years earlier. Consolidating that access behind one gateway took eighteen months and some uncomfortable conversations with suppliers who preferred their own tools. I also inherited the field-dispatch programme, which replaced radio job dispatch at most bases and taught me exactly where coverage ended. The role gave me credibility with operations engineers that I still rely on as CIO.

Reason for the move

Appointed chief information officer when that role took on shared oversight of operational technology security.

May 2011 — Aug 2016

Service delivery director

Halvarine Technology Services

Sector
Managed IT services for public-sector and infrastructure clients
Ownership
Privately owned Australian company
Company scale
About A$160 million revenue at period end
Employees
About 900
Geography
Brisbane headquarters; clients in Queensland and New South Wales
Reporting to
Managing director
Team
140 provider staff across two client accounts
Financial scope
Two contracts worth about A$38 million a year combined, with responsibility for service levels and account margin

Mandate

Run outsourced infrastructure and application support for a state water business and a port corporation.

Outcomes

  • Renewed both contracts on revised service levels in 2014
  • Reduced priority-one incidents on the water account from thirty-one a year to nine
  • Introduced client shadowing for critical changes, later adopted on two further accounts

Decisions in context

This was my education in outsourcing from the side that sends the invoice. I ran two public-sector accounts and answered to our managing director for service levels and margin. Both clients were well served by most measures. I nevertheless saw their understanding of their own systems thin out each year, as experienced staff left and my engineers became the only people who knew why a configuration existed. The contracts rewarded our response times and said nothing about knowledge. I introduced shadowing, in which client staff joined critical changes, partly because it reduced our own risk of being blamed for decisions we had not made. It was popular with one client and ignored by the other. I left when I realised I wanted to be the person deciding what to outsource, not the person explaining afterwards what had been lost.

Reason for the move

Wanted to carry a client's accountability for its systems rather than a provider's.

Feb 2006 — Apr 2011

Field systems manager

Brolgavale Mining Services

Sector
Maintenance services for open-cut coal mines
Ownership
Privately owned contractor
Company scale
Roughly A$240 million in annual revenue by 2011
Employees
About 1,300
Geography
Mackay headquarters; Bowen Basin mine sites
Reporting to
Chief financial officer, who also held responsibility for IT
Team
Eleven developers, analysts and support staff
Financial scope
A$4 million annual field-systems budget and about 700 rugged devices

Mandate

Make maintenance records from mine sites complete and timely despite unreliable connectivity.

Outcomes

  • Redesigned synchronisation so that devices held a full roster of work offline
  • Cut missing or out-of-order work records from about 9 per cent to under 1 per cent
  • Standardised rugged devices from five models to two

Decisions in context

The mines paid us for completed maintenance, so a missing record was a missing invoice and sometimes a disputed safety inspection. Our fitters worked twelve-hour shifts on sites where the network reached the workshop but not the pit. Their tablets were supposed to synchronise continuously; in practice they often held a shift's work and then sent it in the wrong order. I rebuilt the synchronisation around the assumption that the device was the master copy until it reconnected, with clear rules for conflicts. I learnt the work by riding with supervisors and watching fitters use gloves, torches and dusty screens. The CFO gave me a small team and considerable freedom. Those five years gave me my lasting preference for testing field software where conditions are worst, which shaped the technicians' application at Ollanvale fifteen years later.

Reason for the move

Joined a managed-service provider to understand outsourced IT from the provider's side.

Jul 2000 — Jan 2006

Billing analyst, later billing systems team leader

Moorlenna Water

Sector
Water and sewerage services
Ownership
Council-owned business
Company scale
About A$310 million revenue at period end
Employees
About 1,100
Geography
South-east Queensland
Reporting to
Customer systems manager
Team
Nine analysts and programmers from 2003
Financial scope
Billing configuration for about 420,000 customer accounts

Mandate

Change the billing system safely through a period of tariff reform.

Outcomes

  • Recorded the reasons behind about 260 billing rules before they were changed
  • Implemented a tiered water charge in fourteen weeks without a billing reversal
  • Introduced parallel billing runs for every tariff change

Decisions in context

I joined as an analyst and led the billing systems team from 2003. The system had been altered for every tariff decision since its installation, and many alterations were undocumented. My team's most valuable work was unglamorous: recording why each rule existed, who had asked for it and what would break if it changed. When the business introduced a tiered water charge, we needed fourteen weeks, and most of that time went on finding earlier exceptions rather than writing new code. We ran old and new calculations side by side for two billing cycles before switching. No bills were reversed. The experience made me sceptical of any billing estimate that starts with the new requirement instead of the existing code. I moved to Mackay because I wanted to work closer to physical operations than a billing team allows.

Reason for the move

Moved to Mackay to run field systems in a mining environment.

Feb 1996 — Jun 2000

Graduate analyst-programmer, later analyst-programmer

Merriwen Software

Sector
Rates and water-billing software for local councils
Ownership
Founder-owned private company
Company scale
About A$6 million revenue at period end
Employees
About 45
Geography
Brisbane; council clients across Queensland
Reporting to
Development manager
Team
Member of a seven-person development team; no direct reports
Financial scope
Code changes and testing for eleven council installations

Mandate

Write and test billing changes for council clients.

Outcomes

  • Built a test library from each council's rounding and concession rules
  • Worked on year-2000 remediation of the billing package across eleven councils
  • Took first-line support calls from council revenue officers during notice runs

Decisions in context

My first employer sold one billing package to eleven councils, each of which had its own rules for rounding, concessions and instalments. I wrote code changes and tested them, at first under close supervision. The one-cent rounding error I describe in my biography happened in my first year and changed how I tested. I built a library of each council's rules so that a change could be run against all of them before release. During notice runs I also took calls from council revenue officers, which was the best training I could have had in what a billing defect costs the people outside the software team. The year-2000 remediation filled much of my last eighteen months. I left because I wanted to see how a utility lived with billing software every day, rather than how a vendor shipped it.

Reason for the move

Joined a water business to work on billing from the client side.

What I am looking for next

I intend to remain Ollanvale's CIO while taking on one external governance role. My preference is a water utility, a port, a regional health service or a community-sector organisation that depends on systems it cannot afford to lose during a disaster. I would not accept a seat with another remote-power operator, a mining company or a government body that buys power from us, because the commercial overlap with my employer would be too close. I have not been a director, so I would begin as a member of an audit and risk committee, or a technology and cyber risk committee if the board has one, under a chair willing to explain the organisation's history before asking me to judge it. About twenty-four days a year is realistic alongside my current role. I am looking for a board that wants informed questions about recovery, supplier dependence and the evidence behind a cyber report, not one where I would quietly become an unpaid technology adviser.