Our Team

  • Marc Gaudry

    Managing Director

    Founder of MGP in 2002, Marc has over 30 years of experience in the building services and infrastructure design. Marc’s knowledge and experience in the industry is pivotal to the ongoing success and growth of mgp. Marc's involvement in all key projects ensures his high standards are met and clients' expectations are delivered upon.

    Qualifications: Plumbing License, Backflow Prevention Certificate, Diploma in Plumbing Services, Accredited Sydney Water -Water Service Coordinator; Designer Classification C2, D-W1, D-S1, D-RW, D- LP, D-W2, D-S2, D-SW, D-W3 S-W1, S-S1, S-RW, S-LP, S-W2, S-S2, S-SW, S-W3. Certified: Identify, Locator and Protector Underground Services.

    Marc Gaudry
  • Alex Ross


    Alex has over 20 years experience in the industry and has been a part of the mgp team for over 12 years. His expertise spans across Hydraulic Design, Sydney Water Infrastructure Design and Water Service Coordinator. Alex is an experience senior member at mgp and brings his wealth of knowledge to the Sydney Water teams and design projects.

    Qualifications: AMIEAust, Associate Diploma of Mechanical Engineering, Diploma of Plumbing, FIFM Card – Asset Isolation and Flow Management, Confined Spaces Training, Accredited Sydney Water - Designer and Accredited Sydney Water -Water Service Coordinator Classification C2, D-W1, D-S1, D-RW, D- LP, D-W2, D-S2, D-SW, S-W1, S-S1, S-RW, S-LP, S-W2, S-S2, S-SW, S-W3. FPAS Fire Systems Design Accredited Practitioner - Fire Hydrants and Hose Reel Systems Level 3 (Advanced), Hunter Water – design and approve Water Reticulation and Gravity Sewerage Reticulation.


    Alex Ross
  • Milan Durdevic

    Hydraulic Designer

    Milan has been working in the field of hydraulic design for the last 6 years in Bosnia and Herzegovina. With a Masters degree in Ciivl Engineering his employment experience extends across hydraulics, drainage, water design engineering and spatial planning. 

    Milan joined MGP in June 2019, and is a highly valued member of the team.

    Qualifications: Masters Degree of Civil Engineering

    Milan Durdevic
  • Louise Zhang

    Hydraulic Designer & Drafter

    Louise recently joined the team from Acor Consultants, with over 14 years’ experience as a hydraulic and fire drafter and Revit modeller. Prior to this Louise worked for many years in architectural design and drafting having completed a Diploma of Architecture, Design and Construction Management in Shanghai, China.

    Qualifications: Diploma of Architecture, Design and Construction Management, Certificate in Drafting 

  • Daniel Tan

    Hydraulic Drafter/Designer

    Daniel recently joined the hydraulics team. His experience covers a diverse range of projects including feasibility studies, liaison work with all utility and statutory authorities, design and construction documentation of hydraulic services.

    Qualifications: Diploma of Hydraulic Engineering Design, Advanced Diploma of Civil Engineering Design, B.E Civil, M.E Structure.

  • Santosh Acharya

    Senior Consultant

    Santosh has been working with MGP for the last 5 years, a highly skilled AutoCAD and REVIT designer Santosh has an exemplary work ethic. His attention to detail, ability to work under pressure and excellent design and management skills means he’s able to deliver large scale projects and work collaboratively with the internal and external team.

    Qualifications: Diploma of Hydraulic Services and Certificate IV, Bachelor of Mechanical Engineering, Assistant Lecturer in Kathmandu, Nepal, Affiliate member of the Australian Institute of Refrigeration, Air Conditioning and Heating (AIRAH). AutoCAD, REVIT.

    Santosh Acharya
  • Martin Sines

    Consultant - Senior Hydraulic Designer

    Martin has over 9 years’ experience in the industry including hydraulic design, building plan approvals and undertaking design projects of various sizes. Martin is highly skilled in Revit and AutoCAD.

    Qualifications: Certificate 4 in drafting, undertaking Certificate 4 in Plumbing and AEC Certificate in Revit and Revit families.


    Martin Sines
  • Lesley Nicol

    Sydney Water - Senior WSC Designer

    Lesley joined the team at mgp in February 2016. With a wealth of experience from working in the UK, Dubai and Australia as a Civil Engineer.  Lesley successfully managed and grew the Sydney Water Building Plan Approval team, and in mid 2017 moved into the WSC Design and Project Management team for the Major and Minor Works and Sydney Water Section 73 certification. She runs the successful team with our Director Alex Ross.

    Qualifications: First Class BEng (Hons) Environmental Engineering with European Studies (German), Member of the Institution of Civil Engineers (MICE), Member of Engineers Australia (EA). Accreditation: Sydney Water Designer Classification C3; D-W1, D-S1, D-RW, D- LP, D-W2, D-S2, D-SW, S-W1, S-S1, S-RW, S-LP, S-W2, S-S2, S-SW, S- W3, S-F. Accredited Hunter Water Design of Water Supply and Waste Reticulation.

    Lesley Nicol
  • Tobin Bald

    Sydney Water Building Plan Approval Manager

    Tobin recently joined the Sydney Water Building Plan Approval team at MGP. With an extensive background in account management in the construction sector, having spent 10 years as a Branch Manager for Reece Plumbing, Tobin brings to the team his technical expertise, customer service and thorough understanding of running multiple projects across the residential and commercial sector.

    Tobin Bald
  • Emma Chapel

    Sydney Water Building Plan Approval Manager

    Emma originally joined the Financial Administration team, assisting in the smooth running of mgp. Emma's experience of running her own small business and Personal Assistant (PA) work in London provided the Administration team with experienced financial support.

    In early 2019 Emma completed an AutoCAD training to assist the Building Plan Approval (BPA) team with the production of the Service Protection Reports. Over the last 18 months she has developed into a competent BPA manager, working with Tobin Bald and Alex Cogley.

    Emma Chapel
  • Daniel Sylvester

    Sydney Water - WSC Support

    Daniel joined the MGP Sydney Water team in 2020.

    Daniel holds a Bachelor of Chemical Engineering. Initially working as a Product Engineer and a Process Engineer for a few years he moved across into the field of Engineering Design work, to support our busy Sydney Water WSC Design team.  

    Qualifications: Bachelor of Chemical Engineering Second Class Honours, Accredited Sydney Water and Hunter Water Designer.

    Daniel Sylvester
  • Yogeswara Boddapati

    Sydney Water Designer / Stormwater Engineer

    Yogeswara joined our busy Sydney Water design team in 2021. With a strong background in Civil Engineering Yogeswara brings his technical knowledge to the design of Sydney Water infrastructure and processing Section 73. His stormwater experience provides the hydraulic team with additional support when sizing gutters and completing calculations.

    Qualifications: Civil Engineer, Diploma in Civil Engineering Software, Accredited Sydney Water and Hunter Water Designer.

  • Alex Cogley

    Business Manager

    Alex joined MGP as our Business Manager in February 2015. Alex is an experienced Business Manager, with a background and expertise in marketing and managing small businesses. Alex is responsible for MGP's HR requirements, marketing, tenders, new business development opportunities and supporting the Directors. 

    Qualifications: Alex holds a Bachelor of Arts Honours degree in History of Art and Anthropology (and teaches yoga on the Northern Beaches).

    Alex Cogley
  • Michelle Coates


    Michelle is an experienced bookkeeper who manages mgp’s payroll, invoicing, payments and debtors and financial reports. Michelle has over 12 years experience and is a registered BAS Agent with the Tax Practitioner Board and a member of the Institute of Certified Bookkeepers.

    Qualifications: Certificate 4 Accounting and BAS Agent registration.

    Michelle Coates

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