Wednesday, August 15, 2012

Lowongan Agustus 2012 PT. Petrosea Tbk.

PT Petrosea, Tbk. has been designing, building and mining in all corners of Indonesia since 1972 and today is recognized as one of Indonesia s leading mining, engineering, and construction contractors with international standard capabilities.
Due to our rapid growth at present, we are currently taking applicants for below position:

Senior Electrical Estimator
To prepare detailed cost estimates the Company can have confidence in, all in accordance with Company procedures and accepted good practice for the industry. Actively assist the Estimating Team to continually enhance estimating procedures and processes. Actively contribute to a positive teamwork environment at all times.
Requirement:
1. May require local & overseas travel for site visits as well as occasional short term assignments to work in other Petrosea / Indika offices, partners offices etc.
2. Overtime working will be required from time to time
3. May require acting as a Lead Estimator and/or Tender Manager
4. Min. 6 years working experiences, with minimum 2 years as an estimator. Preferably has experience in Material Handling Works and Electrical
5. Min. Bachelor degree in Mechanical Engineering
6. May require to be rotated as a Project Engineer on site once Petrosea can secure the project
7. Strong background in technical aspect of project site supervision, technical standard, method of work, calculation, and preferably also in design work
8. Computer Literate (Ms. Office), MS Project, preferably also AutoCAD, Primavera, Tecla, Helix
Responsibilities:
1. Prepare estimates is PETS format in accordance with Petrosea s procedures
2. Prepare and maintain electronic and hardcopy tender files in accordance with Company procedures
3. Prepare or arrange for detailed MTOs (quantity take-off) from tender documentation
4. Attend site visit and prepare detailed report of existing local conditions, available facilities and technical capabilities
5. Ensure the Estimate is built up methodically and in sufficient detail and is in accordance with good estimating practice. Sufficient explanatory notes are to be included referring the location of supplementary information
6. Ensure that a comprehensive Subcontract Enquiry Package is sent only to Company Approved Subcontractors for any “major subcontract” work. Terms and conditions of the Subcontract Package must be back to back with the head contract. Comprehensive Subcontract Enquiry Packages to be reviewed by all Division functional departments
7. Ensure Subcontractor responses are properly evaluated and the results tabulated on a Subcontractor Bid Evaluation spreadsheet
8. Ensure (by working closely with the Lead Estimator) that the Indirect Cost Estimate is properly prepared and cost
9. Identifies (with the Bid Manager and Lead Estimator) the “big ticket” items in the Estimate and proactively works on these with the bid team with a value added outcome as the aim
10. Assist designated Planner in the preparation of the construction schedule, providing man hours and plant requirement for each activity and also indicating anticipated durations and minimum manning
11. Participate with the Lead Estimator and other Discipline Estimators in benchmarking productivities to be applied to the Estimate against recognized industry norms. The productivity uplift/discount shall be shown separately for each bill item in the estimate
12. Assist the Lead Estimator and Bid Manager in the identification, evaluation and ranking of risks as well as developing a strategy to manage and mitigate the risks to Company. R&O Matrix is to serve as the basis for estimating an appropriate contingency allowance for inclusion in the Cost Estimate
13. Ensure the Estimate Basis is “Current Cost” by utilizing the labour and staff rates prepared by the Estimating Manager and all material prices are from current quotations
14. Present for review by the Lead Estimator the Cost Estimate in detail prior to review of the tender by management
15. Assist Bid Manager with the preparation of a list of commercial and technical clarifications and qualifications to the proposal
16. Assist Bid Manager in completing Client s pricing and technical tender schedules
17. When requested, carry out peer review of estimated compiled by other estimators and or divisions, checking for completeness, pricing accuracy and adequate manning and plant requirements
18. Responsible for continually maintaining and updating the database of estimating norms including feedback from past projects in Division Estimating and Norms Manual.From time to time work as a Bid Manager
To apply for this position, please send your application together with a detailed resume including recent color photograph, and quoting in email subject: Senior Electrical Estimator to
recruitment.jkt@petrosea.com
in Microsoft Word or PDF format with a file size not more than 350kb.

Senior Planning Engineer
To create and develop a plan and schedule of work activities for a Project which clearly shows the work breakdown structure, critical path activities, progress earned to date and programme to completion.
Requirement:
1. Knowledge of best practices in project control and scheduling
2. Ability to design and calculate cost of a project
3. Ability to establish policies and procedures
4. Familiar with project management and project resources (Labour, Material and Plant)
5. Ability to evaluate program effectiveness
6. Ability to communicate effectively
7. Ability to develop and maintain effective monitoring and control mechanism
9. Min Bachelor Degree of Engineering
10. Min 5 years experiance as planner/scheduller
11. Experience and demonstrated skill in performing, monitoring, reviewing and presenting project planning and scheduling functions, which include schedule development, schedule analysis with demonstrated skill in establishing criteria, planning and supervising project scheduling activities
Responsibilities:
1. Develop procedure for design and construction project management scheduling, including coding, resources allocation and cost loading of design and construction schedules
2. Plan and organize work program; establish and monitor controls to evaluate unit performance; take appropriate action to correct performance and to adjust programs to meet requirements
3. Analyze and interpret schedules prepared by outside consultants and contractors, merger them into a single composite master schedule, which is summarized, as required, for various levels of use
4. Establish and maintain effective means of coordinating unit plans and schedule with other organization units; report delays and problem promptly and take appropriate actions to maintain effective coordination of activities; ensure that unit activities do not conflict with organization goals
5. Assist in the analysis of claim, utilizing schedule information and capabilities of the scheduling system to provide accurate picture of project activities events
6. Develop plans to meet unexpected situation, new developments and changes in the business environment; prepare for emergencies; anticipate events; understand the factors and conditions effecting the organization and respond appropriate when these change
To apply for this position, please send your application together with a detailed resume including recent color photograph, and quoting in email subject: Senior Planning Engineer to
recruitment.jkt@petrosea.com
in Microsoft Word or PDF format with a file size not more than 350kb.

Senior Cost Control Engineer-Overhead
(Placement: Balikpapan)
Ensure cost control process is running is daily bases. Review budget and control cost/expenditure status, prepare forecasting process in regular bases. Secure company profitability and provide trend cost analyses report.
Requirements:
1. Work flexible hours to accommodate job requirements
2. Min. Bachelor degree in civil/mining/mechanical, with 5 years experiences in accounting, preferably in asset/mining project
3. Good knowledge of financial management system (budgeting, costing, forecasting)
4. Good analytical and supervisory skills
5. Good communication in English
Responsibilities:
1) Ensure cost allocation for trend cost analyses
2) Ensure cost running within/under budget, good explanation for exceptional
3) Review weekly trend costing analyses report
4) Review monthly trend costing analyses report
5) Review monthly forecast profit/loss for year end
We offer our staff a challenging and innovative work environment. An attractive salary package will be negotiated to ensure a high caliber appointment.
To apply for this position, please send your application together with a detailed resume including recent color photograph, and quoting in email subject: Senior Cost Control Engineer-Overhead to
recruitment.jkt@petrosea.com
in Microsoft Word or PDF format with a file size not more than 350kb.

Senior Commercial Engineer
Provide commercial/contracts management expertise to Management and clients, including auditing documents for compliance and offer a legal perspective to all situations that may expose company to risk in order to enhance company s effectiveness and efficiencies in term of minimising such risk in commercial/contracts.
Requirement:
1. Requires travel to Project Locations as required
2. Vendor/suppliers/subcontractor meetings and visits
3. Interface with commercial/legal service providers
4. Audits investigations
5. Risk and exposure due diligence
6. Min. Bachelor Degree from Engineering
7. Min. 5 years experiences in contract / commercial
Responsibilities:
1. Review and analyse contracts at the Tender stage, giving input to the Bid Manager regarding the contract composition/legalities and any qualifications required in order to align conditions to Petrosea contracting guidelines
2. Review and develop appropriate contractual strategies in order to maximise commercials effectiveness
3. Drafting formal letters and attending negotiations of a contractual nature in order to provide logistical support to Project Managers in resolving contractual issues with the Client/vendors
4. Organize and manage variations and claims to their scope of work and successfully negotiate these to settlement, including a running log of all contractual correspondence to settlement
5. Monitor and control contract implementation to ensure that the Client and Petrosea follow the contractual requirements of the contract such that Petrosea is not exposed to unnecessary costs or penalties
6. Evaluate and analyse all legal aspects of commercial documents/contracts and manage such to stay abreast of commercial change/risk
7. Evaluate and conduct restructuring of internal documents to ensure all company s documents are in accordance with the Petrosea Contracting Principles and management of commercial contracts
To apply for this position, please send your application together with a detailed resume including recent color photograph, and quoting in email subject: Commercial Superintendent to
recruitment.jkt@petrosea.com
in Microsoft Word or PDF format with a file size not more than 350kb.

Friday, August 10, 2012

Fungsi Dan Cara Kerja Delivery Valve

Fungsi utama dari delivery valve adalah untuk mencegah aliran balik dan mengatur
tekanan sisa bahan bakar. Ketika plunger pada pompa injeksi telah mencapai posisi titik mati
atas, maka proses penginjeksian bahan bakar telah berakhir. Jika plunger dan pipa nozzle
(pipa dengan tekanan tinggi) dihubungkan secara langsung, maka bahan bakar yang
terdapat di dalam pipa nozzle akan terhisap ke arah pompa injeksi pada saat plunger
bergerak turun.

Jika hal ini terjadi maka akan berakibat terjadinya keterlambatan penginjeksian bahan bakar (akan terdapat jeda waktu yang cukup lama antara saat dimulainya pengiriman bahan bakar oleh plunger dengan saat dimulainya penginjeksian bahan bakar oleh nozzle) pada saat siklus berikutnya.

Untuk mencegah hal ini, maka dipasanglahj delivary valve diantara plunger dengan pipa nozzle. Delivery valve akan memutuskan hubungan antara plunger dengan pipa nozzle pada saat proses penginjeksian bahan bakar berakhir, untuk menghentikan seluruhnya aliran balik dari pipa.

Delivery valve juga berfungsi untuk mencegah adanya tekanan sisa pada pipa saat
penginjeksian berakhir. Tekanan sisa yang terdapat pada pipa nozzle jika dibiarkan akan
berakibat bahan bakar yang diijeksikan oleh nozzle tidak akan berhenti dalam waktu yang
tepat (terjadi keterlambatan waktu berakhirnya penginjeksian oleh nozzle).

Kejadian ini akan menimbulkan tetesan (dribbling) bahan bakar dan terjadinya penginjeksian kedua (secodary injection). Untuk mencegah hal ini, delivery valve akan mengatur tekanan sisa pada pipa
nozzle pada level yang tepat dengan cara menarik/menghisap bahan bakar tersebut. Proses penginjeksian bahan bakar akan berakhir pada saat retraction piston menutup lubang pada
valve seat.

Berakhirnya penginjeksian bahan bakar merupakan awal dari proses penarikan
bahan bakar (retraction). Pada proses retraction inilah terjadinya penurunan tekanan pada
pipa nozzle, sehingga proses penetesan bahan bakar (dribling) dan penginjeksian kedua
(secondary injection) dapat dicegah. Proses bekerjanya delivery valve dapat dilihat pada
gambar berikut ini.