1. Visionstream Pty Limited
Level l, 7 4 Mentmore Avenue
Roseberry NSW 2018
24/09/2014
To whom it may concern,
This is to certi$ that Mr David Tjahjadi was an employee of Visionstream Pty Ltd and was
employed from Feb 3,2014 until Oct lO,2Al4.
Mr David Tjahjadi was employed on a Full rime basis as a project planner.
Duties / Responsibilities / Activities
. Assist in developing project cost management for RBBP, Transit, and TransACT projects
. Responsible in creating cost tracking system to ensure project transaction details are stored.
. Update production record using compiled data derived from various teams in weekly basis
. Act as central reference for weekly production record, providing guidance and assistance in
completing document
. Communicate with a team of project planners and across various departments such as flnance
and construction team.
. conduct formal training session and user acceptance testing session.
Sincerely yo
Signature
Graham Bone
Operations and Account Manager
Visionstream Pty Limited
0409143347