Chaminda is a Chartered Civil Engineer (CEng) with over 20 years' experience in geometric, pavement, surfacing and drainage design for both urban and state-highway projects. At TTAP he leads three-waters design, District Plan and Council CODs compliance, and CODs drafting on residential subdivision work in the Wellington region (Emerald Hill, Cannon Point), and is leading the review of Porirua City Council's Construction Drawing Standards. Recent NZ work includes Johnsonville and Box Hill intersection upgrades for Wellington City Council and pavement rehabilitation designs for 25 NZTA sites across Taranaki and Northland. Chartered Member of Engineering New Zealand and member of the UK Chartered Institution of Highways & Transportation.