Our Team

Principal Engineer - Director

Eric Gerges

Eric Gerges is a Professional Senior Environmental Engineer, with over 20 years of specialised project management experience, particularly on former industrial and petrochemical sites that have being made suitable for redevelopment for more sensitive land uses, including residential and recreational open space.

Eric has considerable contamination assessment and contaminated site management capabilities having directed a large number of projects in NSW and other parts of Australia. Many of these involved the development and implementation of integrated site remediation action plans to enable continued current uses, or site closure with regulatory and/or EPA-accredited Site Auditor approval.

Senior Principal Civil and Environmental Engineer - Director

Dr Vagner Jorden

Dr Jorden is the founder of numerous companies across a range of industries including technology, property development and agribusiness. He is currently head of EI Australia and its group of companies.

Dr Jorden is a professional Senior Environmental and Civil Engineer, with more than 20 years of specialised experience in providing engineering and science solutions across Australia, New Zealand and South East Asia.

Dr Jorden is a long-standing, integral member of EI Australia’s senior management team offering staff mentorship and project management capabilities on the full range of projects.

Senior Engineer

Tony Guirguis

Tony Guirguis has over 15 years of specialised engineering, contaminated land management and project experience. With a solid background in land and property development, Tony has strong capabilities and a proven track record for successful project management in this diverse field and has directed a wide range of projects, including assessment and remediation of contaminated sites, dewatering management during construction and project specific technical advice.

By focussing on understanding client needs, Tony continually refines his approach to complex projects towards a high standard of value engineering, resulting in significant time and cost savings.

Tony’s breadth of experience has enabled him to acquire strong capabilities for successful communication with various stakeholders including project consultants, contractors, EPA-accredited contaminated land auditors, and local and state government authorities.

Senior Principal - Contaminated Land

Malcolm Dale

Malcolm has extensive contaminated land management (CLM) experience with project and team management, delivery of client expectations and outcomes, project direction and technical excellence to wide ranging CLM and remediation services in a competitive consulting environment. Coupled with strong built environment experience (geotechnical engineering, construction, land development) and consulting skills in many areas of earth and environmental sciences, Malcolm’s project experience covers infrastructure & urban development, government, oil industry, mining, transport, energy and utilities. A constructive and collaborative team leadership style with the ability to liaise with regulators, contractors and all levels of management and consulting staff, Malcolm was previously seconded to Defence as an in-house advisor and is a certified site contamination specialist.

Other expertise includes risk and hazard assessment, emerging contaminants, asbestos in soils, acid sulfate soils, local and international acceptance criteria and legislation, investigation and sampling design and complex remediation. Previous experience includes urban capability studies, mining geology, geotechnical hazard mapping and geotechnical investigations for foundations, slope stability and tunnels in Australia and Hong Kong.

Principal Environmental Engineer

Darren Hanvey

Darren is a Principal Environmental Engineer in EI Australia’s contaminated land group and is an environmental consultant certified under the NSW EPA recognised Environment Institute of Australia and New Zealand’s Certified Environmental Practitioner (Site Contamination) scheme.

Darren has more than 25 years of consulting experience in environmental and geotechnical engineering, project management and technical direction in Australia and Canada through completion, design, peer review, and strategic advice for Environmental Site Investigations, Remediation Strategies and Implementation, Landfill Risk Assessments, Design and Construction Audits, and Risk Assessments over a wide range of contamination issues, industry sectors, and client bases.

Principal Environmental Hydrogeologist

Nik Kontos

With over 30 years of experience in the assessment and remediation of contaminated land, Nik has been involved in CLM projects on a range of sites. He has directed projects on petroleum refineries, asbestos-affected land and industrial facilities affected by various contaminant types, often involving complex site remediation for continued current use, or redevelopment for more sensitive land uses.

Nik has extensive experience in the design and implementation of surface water and groundwater monitoring programs both in Australia and overseas and has demonstrated skills in risk communication with a variety of stakeholders in relation to residual contamination and the potential risks posed by it. He regularly provides training and mentoring of junior CLM staff and has been an executive committee member of the ACLCA NSW since 2016.

Principal Structural Engineer

Bala Kularatnam

Bala has over 25 years’ experience in Asian and Australian markets in the structural design of medium to large commercial, industrial and residential projects. He started his career in Sri Lanka as a site engineer, before relocating to Singapore and then to Australia.

Bala has been in Australia for 15 years, working successfully in the structural design of industrial, commercial & residential projects in Sydney. He is familiar with design software RAPT, Micostran, Space Gass, wallap and in-house software etc. Bala has strong knowledge of reinforced, post-tensioning and steel structural design.

Principal Engineering Geologist

Shahzada Rizvi

Shahzada is an accomplished Engineering Geologist with over 30 years’ experience working on major residential, petrochemical, water resources, landfill, and transportation projects in Australia, the Middle East and Pakistan.

His field experience includes planning and supervision of geological and geotechnical drilling, soil and rock core logging, standard penetration and cone penetration testing, plate load testing, down-hole and cross-hole seismic testing, resistivity surveys, aerial photos interpretation, topographic surveys, construction monitoring and materials testing, exploration geophysics, geological mapping, geotechnical rock-slope mapping, permeability testing, groundwater monitoring wells installation, groundwater sampling using low-flow technique and contaminated soils sampling. His global experience is a major asset to the EI Australia team.

Technical Director - Structures

Brian Parker

Having recently joined EI Australia, Brian has held senior roles at a number of Internationally renowned Engineering organisations including Meinhardt, Woollcott’s and AECOM.

Brian has more than 30 years’ experience in Multidiscipline Design Management, Complex structures in Large Projects, Structural Design and Documentation, Post tensioning design and documentation, Structural and Dilapidation Reports, Construction phase support and Feasibility analysis, in Australia and the United Kingdom and with projects in New Zealand, Indonesia, the Middle East and Singapore. He has engaged with the Property Industry Foundation, the Property Council of Australia, Urban Design Institute of Australia, Consult Australia, the Planning Research Centre, ITFA and, Engineers Australia among others.