ARISO Appoints Stephen Lemon as Technical Lead
Stephen Lemon, with more than 40 years of rail sector experience, joins ARISO to coordinate national technical standards in Australia.
Updated on Nov. 10, 2026 in People
ARISO has appointed Stephen Lemon as Executive Director for National Technical Coordination, with Lemon joining the organisation on 2 November. The appointment follows a recruitment campaign launched by ARISO in October for senior technical leadership roles.
Why it matters
The appointment strengthens ARISO's capacity to lead national technical coordination and support the implementation of mandatory standards across Australia's rail sector. ARISO is building its technical team as it works toward standards harmonisation.
Stephen Lemon brings more than 40 years of experience across Australian and United Kingdom rail sectors to the role. ARISO's recruitment covers senior technical leadership, systems engineering, signalling and train control, rolling stock, and operational technology.
The players
ARISO
ARISO is the organisation coordinating technical standards and implementation work across Australia's rail sector.
Stephen Lemon
Stephen Lemon is a rail engineering leader with decades of experience in Australian and United Kingdom rail, including prior work on digital train control.
The details
Lemon previously worked with the National Transport Commission and served as Global Lead for Digital Train Control at GHD, where he helped advance Australia's introduction of the European Train Control System. ARISO is recruiting across several technical disciplines, including industry engagement and economics and benefits realisation.
Timeline
October: ARISO launches recruitment campaign for senior technical positions.
2 November: Stephen Lemon joins ARISO as Executive Director for National Technical Coordination.
Roadmap
Lemon's earlier work helping Australia introduce the European Train Control System places him at the centre of efforts to harmonise national rail standards. ARISO's appointment extends that work into coordinating technical standards across the country.
The appointment signals that national rail standards work in Australia is being resourced with senior technical leadership. Readers working in or around the rail sector may see more coordinated technical guidance as ARISO's team develops.
The takeaway
Senior appointments like this one indicate where national rail standards work is heading. Industry stakeholders should watch for further technical coordination announcements from ARISO as its team takes shape.
Further reading
For more on Australian leadership appointments, see the People section.
Source note: This article includes information reported by Rail Express.
