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Get to know TimberXP's Structural Engineering Team

Our founders are Chartered Professional Engineers (CPEng) registered on the Engineers Australia National Engineering Register (NER).
They have contributed to the design and delivery of award-winning mass-timber buildings throughout Europe and Australia.



Marco established TimberXP after practising as a structural engineer for almost 15 years with a focus on engineered timber and hybrid structures, having led the design of some recent cutting-edge timber masterpieces.


Marco approaches all projects with care and appreciation for what makes each project unique. He’s committed to designing and delivering timber structures to meet people’s needs and exceed expectations by embracing sustainable strategies and striving for innovative and efficient solutions.

Prior to establishing TimberXP, Marco worked in Europe and Australia with some of the most influential timber-oriented firms in the world, where he gained significant experience and contributed to the design of landmark structures.

He spent the last 6 years working at Lendlease, leading the structural engineering discipline throughout all the stages from concept to site, by implementing and embracing the most advanced structural engineering strategies.

Formerly within Lendlease DesignMake, he played a key role in Mass Timber Engineering, designing several of Australia’s iconic mass timber buildings.

Marco is recognised as Chartered Professional Engineer, from the best Engineering Institutions in the Europe and Australia. He is also recognised as International Professional Engineer (IntPE) and  APEC Engineer.



Marco Arcolini | Co-Founder & Principal Engineer

CO-Founder & Principal Engineer

Jesse Hallen | Co-Founder & Director

CO-Founder & Director



With over 12 years industry experience, Jesse has specialised in advanced structural analysis and the design of engineered timber structures. He has been involved in the R&D of mass timber and hybrid structural systems at the University of Technology, Sydney, as well as through Cooperative Research Centre Projects (CRC-P) between Lendlease and Monash University involving innovation in mass timber for residential applications.

Jesse is detail-oriented and enjoys exploring the problem. He takes an analytical approach to arrive at innovative and elegant solutions for our clients.

Prior to establishing TimberXP, Jesse spent 6 years working at Strand7 Pty Limited, developers of the Strand7 finite element analysis software system. He gained industry-leading expertise in structural analysis and applications of computer aided engineering (CAE) software to structural design.

He then spent 5 years working at Lendlease, initially joining DesignMake as a structural design engineer. He developed an interest in tall-timber structures after spending 18 months working as the lead timber engineer on a 25-storey hybrid (mass timber and reinforced concrete) residential tower.

Following this, he moved into the Lendlease Digital business as the Head of Simulation, where he was tasked with establishing and building a team focussed on simulation to support the design of precincts and buildings.

Jesse is a Chartered Professional Engineer and is recognised as International Professional Engineer (IntPE) and APEC Engineer.


MIEAust CPEng NER | AIStructE | RPEQ APEC Engineer IntPE(Aus)


At TimberXP, our mission is to provide our clients with innovative, sustainable, and cost-efficient structural solutions. We strive to deliver projects that meet and exceed our clients' expectations.

We believe in a collaborative approach to our work, working closely with our clients and other project stakeholders to ensure the best possible outcome.



Our team of experienced engineers has the knowledge and expertise to tackle even the most complex structural engineering challenges.


We believe in pushing the boundaries of what is possible, and we are always looking for new and innovative ways to approach our work.


We are committed to designing structures that are not only safe and functional but also environmentally sustainable, reducing the impact on the planet.

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