
Meet the Team
The Tiger Spider team has extensive experience related to heavy vehicle safety research, policy development, computer simulation, vehicle standards, ADR approvals, PBS Approvals and road access. The team brings a wealth of experience and capacity to deliver technical projects within the public and private sector.

Managing Director / Principal Engineer
Marcus Coleman
Marcus Coleman is a Chartered and Registered Professional Engineer with over 25 years of experience in heavy vehicle engineering, policy, and regulation. As the founder and Managing Director of Tiger Spider, he has led a team delivering cutting-edge engineering solutions, consulting, and software development to government agencies, multinational corporations, and SMEs.
Marcus has played a key role in shaping heavy vehicle safety, performance, and regulatory standards, providing expert advice on vehicle design, compliance, crash investigations, and transport policy. His expertise spans high-productivity vehicle design, zero-emissions transport, heavy vehicle dynamics, and road safety. He has contributed to major infrastructure projects, industry research, and regulatory initiatives.
Before founding Tiger Spider in 2011, Marcus held senior roles at the Australian National Transport Commission, Mercedes-Benz Commercial Vehicles, and Roaduser Systems. He is also the principal developer of advanced simulation tools used by regulators, manufacturers, and operators to enhance heavy vehicle performance and safety.

Principal Engineer
Brendan Coleman
Brendan Coleman is a seasoned Principal Engineer with over 26 years of experience in vehicle systems development, homologation, and compliance. With a background in aerospace and automotive engineering, he has successfully secured over 50 vehicle type approvals, including pioneering work in zero-emission vehicles (ZEVs) and hydrogen fuel cell electric buses (HFCEVs).
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His expertise spans vehicle dynamics, structural analysis, and performance-based standards, making him a key technical advisor in large-scale projects such as Brisbane Metro's fleet of 60 electric vehicles. Brendan has led durability testing programs for Isuzu and provided consultancy for ADR compliance, dangerous goods tankers, and vehicle structural assessments.
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Holding an MBA in Technology Management and Bachelor in Aerospace Engineering, he combines technical acumen with strategic insight to drive innovation in vehicle development and regulatory compliance.
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Mechanical Engineer
William Shen
William is an experienced automotive and mechanical engineer with 15 years in the heavy vehicle industry. He holds a master’s degree in mechanical engineering from Tsinghua University and stayed in Germany for global engineer internship program with Continental AG.
His career spans global roles with Volvo Trucks, UD Trucks, Iveco, and Isuzu Australia, where he worked in heavy vehicles product planning & development, technical support, quality control, and project management. He played a key role in launching UD Trucks Quester and Croner products in the Asia-Pacific markets.
A strong advocate for innovation, William has automated several industry workflows using self-taught programming skills. Having lived and worked in over 15 countries, he is fluent in Mandarin, English, and Japanese

Mechatronics Engineer
Simon Tchou
Simon is a dynamic and forward-thinking Mechatronics Engineer at Tiger Spider, where he spearheads the development of the company’s proprietary software platforms, HeviSpec and SpiderPath. Simon’s mechatronics background and strong knowledge of technology assists in being able to produce products that are well suited for professional engineers to use. As the technical lead responsible for these innovative tools, he has had the opportunity to refine his skills across numerous modern technologies and platforms.

Mechanical Engineer
Shawn Ye
Shawn has a Master of Engineering degree from the University of Melbourne, specialising in Performance-Based Standards (PBS) assessments, vehicle inspections, and certification. Proficient in C, Python, MATLAB, and CAD software, he applies computational tools for structural analysis and vehicle modelling. Shawn has contributed to key projects like the Livestock Network in Victoria and Digital Rail Transit field testing in China. A native Mandarin speaker with fluent English, he is passionate about delivering innovative and efficient transport solutions.

Mechatronics Engineer
Cas Kent
Cas is a Mechanical Engineering Consultant at Tiger Spider with three years of experience in the heavy vehicle industry. He graduated with first class honours in a Bachelor of Science (Mechatronics) and a Master of Engineering (Mechanical) at the University of Melbourne. He has a background in rigid-body dynamics modelling, programming and web development.
At Tiger Spider, Cas has conducted a range of ADR and PBS assessments through field testing and computer simulation across Australia and China, including steering, braking, driveline, high-speed dynamics, swept path, and noise testing.

Mechanical Engineer
Thomas Baker
​Thomas is a Mechanical Engineering consultant at Tiger Spider with 4 years’ experience in the heavy vehicle industry. Thomas holds bachelor’s degrees in Mechanical Engineering (Honours) and Science from Monash University. His expertise in PBS certification and assessment, FEA, CAD, manufacturing, and heavy vehicle compliance has delivered solutions for a wide range of engineering problems.

Mechanical Engineer
Nicholas Bucello
​Nicholas Bucello is a mechanical engineer specializing in heavy vehicle performance assessment and regulatory compliance. He holds a Bachelor's degree in Mechanical Engineering and Applied Mathematics from Monash University. His work focuses on vehicle dynamics, accident investigations, and compliance assessments for heavy vehicle combinations, including semi-trailers and multi-combination road trains. His expertise includes computational modelling, engineering simulations, and the development of innovative solutions to enhance vehicle safety and efficiency.

Mechanical Engineer
Patrick Tang
Patrick is a mechanical engineering consultant with 2.5 years’ experience in the heavy vehicles industry. At Tiger Spider, Patrick utilizes his experience with 3D CAD software and Finite Element Analysis techniques to design heavy vehicle systems and components to meet regulatory and performance requirements, as well as to provide support to clients seeking validation of designs for regulatory compliance. He is also regularly involved with detailed assessment and modelling of heavy vehicle combinations for optimization and compliance with the PBS Scheme.

Mechanical Engineer
Nicholas Farmer
Nick is a mechanical engineer at Tiger Spider, with a passion for enhancing freight productivity and sustainability. Graduating with a Masters of Mechanical Engineering and Business, with a background in sustainable aviation fuels, he is able to deliver solutions to a wide range of transport problems.
He is currently involved primarily in vehicle dynamics and swept path assessments under the PBS scheme, as well as certification. His skills include multibody system dynamics modelling, numerical computation for engineering, and econometrics modelling.
Detail oriented, and solutions-focussed, Nick is well equipped to bring innovations to heavy vehicle safety, and freight efficiency.

Mechanical Engineer
Lachlan Dubout
Lachlan Dubout is a graduate mechanical engineer at Tiger Spider, specializing in the design of trucks that meet Performance-Based Standards (PBS). With a strong foundation in mechanical engineering and business management, Lachlan brings analytical precision and strategic thinking to the transportation industry.
Prior to his role at Tiger Spider, he gained valuable experience in building services, where he conducted thermal analysis and energy audits to improve energy efficiency and sustainability in buildings.
Lachlan holds a double degree in Mechanical Engineering (Hons) and Business (Management) from RMIT University. His multidisciplinary background allows him to approach engineering challenges with both technical expertise and a keen understanding of operational efficiency.
He is passionate about innovation in transport design, optimizing vehicle performance, and applying engineering principles to create efficient and sustainable solutions.

Mechatronics Engineer
Darcy Sheahan
Darcy is a Graduate Mechatronics Engineer at Tiger Spider. He holds a Bachelor of Computer Science (Software Development) and a Bachelor of Engineering (Honours) (Robotics and Mechatronics) having studied robot design, control systems, signal processing and mechanical dynamics as well as range of programming languages and technologies.
At Tiger Spider, Darcy has been involved in swept path analysis, as well as Performance-Based Standards (PBS) assessments and certifications for heavy vehicles. Prior to joining Tiger Spider, he gained experience in supply chain optimization, report automation, and system implementation, streamlining data processes and supporting large-scale ERP rollouts