A senior Java developer who bombarded his employer with dozens of AI-drafted emails after a minor workplace spat escalated into claims of bullying, sexual harassment and whistleblower retaliation has lost his unfair dismissal case, with the Fair Work Commission finding he had become "ungovernable".
What the Commission decided
Marcus Wibmer worked as a Senior Java Developer at FujiFilm Data Management Solutions for more than a decade before he was sacked over two allegations: that he falsely logged hours on a timesheet as meetings about his complaints, and that he dishonestly claimed a senior manager sent him an email that was later withdrawn, when no such email existed.
Deputy President Slevin found the timesheet allegation did not stack up, accepting Mr Wibmer had followed his supervisor's advice on how to record the time and that the entries were not dishonest. The Commission also found spending time on his complaints during that week was not, by itself, enough to justify sacking a long-serving employee, though it could have warranted a warning. But the Commission did find Mr Wibmer had been dishonest about the phantom email from the general manager, rejecting his claim that a screenshot existed proving it had been sent and withdrawn.
Despite two of the three planks of the case against him falling away, the Commission found there was still a valid reason for the dismissal. It accepted the company's evidence that Mr Wibmer had become impossible to manage, pointing to his refusal to accept apologies, his repeated attempts to reopen a long-closed 2019 incident, and an unfounded sexual harassment allegation against an HR manager over a dress code reminder.
The Commission did find two procedural gaps in the company's process: it never told Mr Wibmer in plain terms that his overall pattern of conduct, not just the two specific allegations, could cost him his job, and he was not given a direct chance to respond to that broader concern. Weighed against his age, long service and the disruption of enforced retirement, those gaps still were not enough to tip the balance.
What was actually in dispute
Much of the argument turned on whether a single flawed allegation could poison the whole dismissal. Mr Wibmer argued that once any one of the misconduct findings against him failed, the dismissal had to be found unfair. The Commission rejected that approach, holding that the real reason for dismissal was the breakdown in trust caused by his overall conduct, not any single incident.
The Commission also examined Mr Wibmer's heavy use of artificial intelligence to draft his emails and prepare his case. It found the AI-assisted correspondence was often needlessly detailed, combative and demanding, and that this contributed to the breakdown rather than helping his cause. Mr Wibmer accepted responsibility for everything sent under his name, so the Commission did not treat his reliance on AI as an excuse for the conduct.
A further dispute concerned whether his many complaints amounted to protected whistleblower disclosures under corporate law, which he said made his dismissal retaliatory. The Commission found they were ordinary workplace grievances, not protected disclosures, and that this did not affect the fairness of the dismissal.
What this means
The decision illustrates how the Commission weighs a valid reason for dismissal against gaps in process, a balancing act at the heart of most disputes over unfair dismissal. It also shows that an employer does not need every individual allegation to be proven where the broader pattern of conduct supports a finding that the employment relationship has become unworkable.