THUSHYANTHAN THEVARAJAH
Bankstown
Summary
I am a Lead Structural Engineer with over 1fifteen years of professional experience in the design, construction, and management of major infrastructure projects across Australia and Singapore. I have successfully led structural design teams and delivered complex transport infrastructure projects under high-pressure environments. My core expertise includes the design and construction supervision of underground metro stations, cut-and-cover tunnel structures, support systems for deep excavations, shallow and deep foundations, and structural assessments of heritage buildings.
At Central Station, I led the construction-phase structural support team, managing design changes, resolving site-based buildability issues, and addressing non-compliance reports in coordination with contractors. I facilitated design coordination meetings and ensured all construction changes aligned with Sydney Metro’s safety assurance processes.
Overview
21
21
years of professional experience
Work History
Prin Structural Engineer -New South Wales Division
MOTT MACDONALD GROUP
01.2021 - Current
- Acted as Structural Subject Matter Expert (SME) reviewer as part of Engineering Design Assurance Technical Partner (EDATP) for multiple Sydney Metro projects, including:
SSTOM (Stations, Systems, Trains, Operations and Maintenance)
SBT (Station Boxes and Tunnelling Works)
WTP (Western Tunnelling Package)
ETP (Eastern Tunnelling Package)
-Provided independent structural design assurance and technical reviews on behalf of Sydney Metro, ensuring design compliance with codes, standards, and project requirements.
-Reviewed Non-Conformance Reports (NCRs) and advised Sydney Metro Delivery teams on resolution strategies and close-out procedures.
-Conducted site inspections across multiple Sydney Metro project sites, including Airport Terminal Station and Luddenham Station, to verify construction compliance and approve hold point releases.
-Led the Reference Design Phase for Westmead Station as part of Sydney Metro West project, integrating existing Sydney Trains station upgrades and planning new underground connections to the future metro station.
-Served as Structural Lead for the Stage 1 design of Sydney Metro West , including complex tunnelling interfaces and cavern station design coordination - Review and provide input to station particular specifications
Senior structural engineer -New South Wales Division
AURECON GROUP
01.2018 - 01.2021
- Acted as Lead Structural Engineer during the construction phase, responsible for managing all structural technical queries, including:
Responding to RFIs and NCR
Reviewing shop drawings and temporary works designs
Conducting site inspections
-Served as the first point of contact for construction-related structural issues, coordinating between contractors and design teams.
-Managed the construction-phase structural support team, overseeing workload distribution, technical reviews, and timely delivery of responses.
-Successfully met all project deadlines and received formal commendation from the client for exceptional quality and responsiveness.
Detailed Design Phase – Northern Concourse Package Owner
-Led the structural design for the Northern Concourse Package, coordinating across disciplines to ensure integration of complex interface requirements.
Led structural engineer for Underpinning works beneath a 100-year-old heritage building to create a new Metro station entry
Structural engineer -New South Wales Division
COFFEY ENGINEERING (A TETRA TECH COMPANY)
01.2017 - 01.2018
- The Ribbon (Grocon)- Temporary work structural engineer carried out detail design for overhead protective gantry structure at Harbour street. Involved in coordination with Road and Maritime Services for approvals, reviewed shop drawings, and carried out site inspection.
- Circular Quay investigation -Carried out Circular Quay wharf and promenade slab condition assessment and load rating including timber piles, timber head stock and steel piles.
Senior structural engineer -New South Wales Division
MOTT MACDONALD GROUP
01.2016 - 01.2016
- North West Rail link— Design engineer for the final design of the underground cut and cover metro station at Showground, including analysis and design of perimeter walls, prestressed beams, and internal walls. Coordinate with other engineering disciplines to resolve design issues and come up with more effective solutions. Review of design drawings and submittals to ensure compliance with the design intent, contract specification and drawings
Structural engineer -Singapore
AECOM SINGAPORE
01.2011 - 01.2016
- Circle line stage 6-Lead structural engineer carried out the detail design for underground station and entrance structures. Carried out analysis and design for diaphragm walls, slab, entrance steel canopy, plunged in column, steel strut and barrette pile. Managing and mentoring junior engineers and drafters. Produce structural sketches; ensure timely issue / delivery of structural drawings for construction
- Newton Station and Tunnels(C920)- Undertaken structural design of aboveground 3 storey substation and underground station structures. Reviewing reinforcement shop drawings and submittals to ensure compliance with the design intent, contract specification and drawings.
- Jakarta Metro Contract CP103-. Structural engineer preparing tender design documentation for Jakarta Metro line. Responsible for analysis and design of elevated stations steel roof trusses using STADD pro, sub frame analysis and design of crosshead beams and columns
- North East Line extension C713- Responsible for reviewing shop drawings and method statements to ensure compliance with the design intent, contract specifications and drawings. Responding to contractor queries and come up with solutions during actual construction stage. Stand in resident Engineer to cover site staff duties when site staff on leave. Supervision of secant piled wall construction, caisson construction , strutting and deep excavation .
- Tuas west extension MRT project - Provide construction support to three elevated mass rapid transit station construction
- Tan Kah Kee station and tunnels(C918)- Review of method statements, material submission and construction drawings to ensure compliance with design intent and Land transport Authority specifications. Onsite supervision during excavation, temporary works, permanent works, water proofing works, reinstatement works and IAAF standard running track construction. Attending weekly meeting with contractor and Land Transport Authority to discuss the project quality, progress, and environmental issues. Gained sound knowledge in health and safety policies, procedures, hazard reporting and safe work practice and experience in risk assessment
Structural engineer -UK
INTEGER CONSULTANTS LTD, UK
01.2009 - 01.2011
- Residential buildings - Design and construction of residential buildings of 3 storeys. Involved in the design of reinforced concrete structures and steel roof, slab/beam and columns, and foundations. Duties include obtained approval from the relevant authorities, coordination with sub-contractors and suppliers, regular site visits, health and safety monitoring, risk assessment, bill of quantities and method statements.
ROAD DEVELOPMENT DEPARTMENT, SRILANKA
01.2005 - 01.2006
- Rehabilitation of Tsunami Affected Areas in the North-As Site Engineer for the Roads Development Department of Sri Lanka Involved in the design of various types of roads, small bridges and building elements such as beam, column, and slab. Prepared bill of quantities and monitoring construction on site and supervision of sub-structure construction
Education
MSc - Structural Engineering
University of Surrey
01.2008
BSc (Hons) - Civil Engineering
University of Moratuwa
01.2005
Skills
Structural Subject matter expert(SME) for Sydney metro as part of Engineering Design Assurance technical partner (EDATP)
Strategic Leadership
People Management
Design Contract/ Performance Management
Engineering Management
Design Management
Risk Management
Design and construction major and complex transport infrastructure assets
Temporary works design for construction
Underground metro station ,elevated metro station design and construction
LANGUAGE CAPABILITY
Tamil : Mother tongue
English : Spoken – fluent; written – fluent; reading – fluent
Timeline
Prin Structural Engineer -New South Wales Division
MOTT MACDONALD GROUP
01.2021 - Current
Senior structural engineer -New South Wales Division
AURECON GROUP
01.2018 - 01.2021
Structural engineer -New South Wales Division
COFFEY ENGINEERING (A TETRA TECH COMPANY)
01.2017 - 01.2018
Senior structural engineer -New South Wales Division
MOTT MACDONALD GROUP
01.2016 - 01.2016
Structural engineer -Singapore
AECOM SINGAPORE
01.2011 - 01.2016
Structural engineer -UK
INTEGER CONSULTANTS LTD, UK
01.2009 - 01.2011
ROAD DEVELOPMENT DEPARTMENT, SRILANKA
01.2005 - 01.2006
BSc (Hons) - Civil Engineering
University of Moratuwa
MSc - Structural Engineering
University of Surrey
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