The Role: • Evaluating offset data before the start of drilling • Comparing data gathered during drilling with predictions made at the offset well operation. • Taking full responsibility for making decisions about suspending or continuing drilling; • Advising operations personnel on-site and in the operations office related to geological activities. • Acting, in effect, as the representative of the offshore oil company geology team • Keeping detailed records, writing reports, completing daily, weekly and post-well reporting logs and sending these to appropriate departments and COMPANYs Drilling Superintendent and Drilling Manager • Supervision of Mud Logging and well unloading activities on rig site offshore • Cuttings and samples lithological description and sample storage • Supervision, daily and other periodical reporting, MasterLog data check, supervision of hydrocarbon and H2S readings, mud logging equipment regular testing • Assist on casing and coring point decision • Revise well correlations if/when requested • Supervise and assist in coring operations. Prepare relevant documentation • Supervise/witness LWD and WL logging data acquisition. • Responsible of quality control check and deliverables preparation in any related geological activity. • Actively interface drilling staff on rig site (SDSV, DSV & Drilling Superintendent) to advise on subsurface related matters. • Full understanding of pore pressure and fracture gradient estimates and communication of any deviation from prognosed to the wellsite drilling team and operations geologist. • Review of all drilling risks prior to each hole section and effectively communicating these to the drilling team at the wellsite. No Drilling Surprises is a key driver in COMPANY operations. • Populate the Wellsite Data Book with significant operational events and any associated NPT. • Specific experience is required in understanding borehole instability issues and the collation of all geologically related data including hydrocarbon shows. • Capture Lessons Learnt in Wellsite Data Book • Supervision and quality assurance of all LWD and Wireline Services. • Ensure that all real-time subsurface data is available to all authorised parties. • Support drilling team with information on formation changes and assist in bit trip decisions. • Maintaining up-to-date knowledge of MWD (measuring while drilling) tools, such as gamma and resistivity, as geosteering becomes increasingly important. • Communicating regularly with onshore operations offices. • Check contractors performances Desired Candidate Profile Essential Skills / Qualifications: • Must be Indonesian with age between 34 to 50 years old. • Minimum 8 years of industry experience which 5 years of experience as Wellsite geologis.t • Direct experience in offshore well operations. • Have excellent knowledge of geology in siliciclastics and carbonates. • Experience in fracture carbonate reservoir and well with high temperature. • Strong background in the theory and practical application of pore pressure prediction is required. • Must be able to operate the Geologger full suite software • Regional experience from Offshore Java (Madura Offshore) is preferred. • Minimum of 3 years experience in drilling with ERD and horizontal wells. • Experience in Development wells operation. • Bachelor Degree in Earth Science or Geology or similar from university. • Very good knowledge of English language essential. • Computer Literate. Familiarity with geological software packages. • Have valid offshore safety passport (T-BOSIET).