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What's great about Trees?

Trees, your turnkey engineering solution that delivers.


Work on projects no matter your location or nationality with our worldwide clients.


Work remotely from your favorite place. All you need is a good WiFi and your productivity, work does not need to be done in a specific place to be executed successfully.

Engineering Specialized

Work for operators, contractors, subcontractors dedicated to Industrial EPC projects (Conceptual, Pre-FEED, FEED, Detailed Engineering) following international standards & procedures.


One Platform to: register, get approved, match, bid, get selected, deliver, monitor and get paid. One single platform that centralizes your engineering task-based projects.

Autonomy & Exact Skill Value

Be autonomous and get paid for your exact skills value. Optimize your planning. Receive tenders that are based on your skills and availability, deal directly with our clients and get paid for value instead of time.


Trees acts as partner by protecting you and your datas all along your projects.

Our industries

  • Biorefineries
  • CO2 Solutions
  • Geothermal
  • Green Hydrogen
  • Solar
  • Wind
  • Cargo Ship
  • Cruise & Ferry
  • Bulk Carrier
  • Container
Oil & Gas
  • Bunkering
  • Drilling
  • Offshore
  • Onshore
  • Subsea
  • Coal-Fired
  • Gas
  • Floating Power Plant
  • Hybrid
  • Hydropower
  • Steam

Our disciplines

Cathodic Protection
Containment System
Control System
Document Control
Flow Assurance
Marine System
Naval Architecture
Piping Stress
Pressure Vessel

Latest job postings

Check out these latest public job postings.Sign up now to unlock more and send your bid!

Posted on 20 January 2022

Offshore Pipeline Engineer

• A minimum of 15years experience in offshore / subsea pipeline engineering (FEED / detailed design) in the oil and gas industry and should have executed as lead at least 5 pipeline projects. • Familiar with project management activities and experience of working in a consultancy environment • Should have solid experience and knowledge in HP/HT global buckling and walking mitigation design and deep water pipeline engineering. • Should have exposure to recent subsea techniques and familiar with installation activities/ subsea operations. • Should have front end knowledge - screening concepts, design philosophies, define bases and cost estimation. • Should have hands-on experience in pipeline design software - DNV spreadsheet, AGA, • Stablelines, Offpipe, Orcaflex, Sage profile, Autopipe, Fatfree and Abaqus / Ansys, and Mathcad and Excel. • Should be well versed with pipeline international codes & standards, local regulations, industry / company requirements & practices and technical literature and publications. • Should have solid experience in pipeline design - pipeline concepts, familiar with geotechnical, geohazards and geophysical issues, design basis, material and wall thickness design, on-bottom stability design, thermal designs (PIP, insulated and heat trace pipelines), coating selection, cathodic protection design, global buckling and walking analysis, free span and on-bottom roughness analysis, crossing design, shore approach design, riser & expansion spool design and installation analysis. • Experience in material and corrosion assessment and pipeline integrity (preferable). • Exposure to clad and piggy back / bundle pipelines, and onshore pipelines (preferable). • Experience with field layouts, deep water architecture, approaches, alignment, riser / spool GA, and other pipeline drawings. • Familiar with subsea design - PLET, ILTA etc.

Posted on 11 January 2022

Project Manager

We are looking for someone that can start immediately and the details are as below: The resource shall be the focal point of the Company for all technical, contractual, schedule and commercial aspects. The Project Manager manages/coordinates all matters that (may) affect the projects. Especially, but not limited to, project set up and organization, overall execution strategy, main procurement of complex product and Long Lead Items (LLI) including main subcontracts, budget control, overall progress monitoring & commercial aspects (variations and change orders management). An important aspect is maintaining a lasting positive client relationship while coordinating with the Consortium partner (LTHE) the strategy for successfully delivering the project. SPECIFIC KEY RESPONSIBILITIES & ACTIVITIES Oversees all aspects of the day to day management of the project, monitors and co-ordinates the work performed by Engineering, Planning, Finance & Control, Contracts, HSEQ, Operations and subcontractors. • Responsible for management and execution of all phases of the project • Ensures that project execution is in compliance with the Consortium Agreement (CA) and Main Contract specifications and Client requirements. • Establishes that performance and delivery criteria are met, project meetings are held, and project documentation is generated, distributed and properly maintained. • Has bottom line responsibility for all aspects of the performance of the project (technical, schedule, costs, quality and safety) • Ensure project compliance • Responsible for delivering the project as-sold position (or better) and responsible for accurate forecasting together with Project Control Manager. • Establishing a high-performance safety culture within the project team and Subcontractors • Responsible for the development, approval and implementation of Project Execution Plan (PEP) • Oversees the planning and resource allocation of personnel throughout the project • Define role, responsibilities and authorities for direct reports • Effectively delegates authority and responsibilities to direct reports • Ensures that Main Contract, Consortium Agreement and main Subcontracts are correctly administered, including agreement and negotiations to the variations to the scope of works/de-scoping/transfer of scope • Oversees the proper implementation of Management of Change (MOC) process • Drives the resolution of issues or conflicts between departments or with Consortium Partner and/or Client • Monitors and manages the project risk profile with the assistance of relevant departments • Overseeing contingency planning and continuous lesson learned collection throughout the entire project life • Ensures that all direct reports are competent for their jobs and all personnel training requirements are met • Ensure that the close out activities are properly performed and documented as required by the Main Contract and internal procedures. • Authorizes issuance of purchase orders and variation orders to subcontractors.

Posted on 28 December 2021

Process Mechanical Engineer

Work closely with the Systems Engineering Lead to develop the User Requirement Specifications and Functional Requirements into a much more detailed set of Derived Requirements and Acceptance Matrixes across the discipline, bringing knowledge of Industry standards as well as regulatory requirements. Working closely with other disciplines including EC&I, Systems, Manufacturing, Production & Integration, the role will develop initial high-level criteria for acceptance events as aligned with the delivery programme and the delivery ‘V’ model. The Role will then expand to cover the Transverse Requirements of the project, covering aspects such as Obsolescence, Material Certification, Whole Lifecycle Analysis, Training, Environmental Acceptance & Environmental Impact and Spares Strategy. As the manufacturing technology is further developed by the Manufacturing & Production disciplines, the role will the oversee the mechanical aspects of the supply chain brought in to realise the production capability. The Mechanical Engineering Lead (and department) will be responsible, ensuring that all interfaces between adjoining sub-systems are appropriately managed and implemented such that assembly of the production line will be seamless. The Mechanical Engineering Department will be responsible for the interfacing of all manufacturing and production equipment with the facility. Whilst this will be predominantly handled by the Integration Discipline, the project will be relent upon the Mechanical Engineering Department to specify all non-electrical interfaces between the equipment and the facility to ensure that aspects such as HVAC & process gasses, coolant, drainage etc are provided exactly where needed and in the correct quantities so as to ensure product quality.

Posted on 28 December 2021

Subsea Engineer

- To safely deliver subsea production, water injection and gas injection performance. - Supervise and train Subsea Well Operators to competently operate the subsea equipment and assist in all aspects of supporting the operation and maintenance of the subsea system. - In the event of production upsets provide on-the-spot leadership and direction in flow assurance management tasks to protect subsea infrastructure. - Ensure safety critical testing is completed on schedule, with supported justification for deferral in place should this not be met. Maintain auditable records of testing once completed. - Develop, update and continually improve flow assurance documentation and procedures, so that they represent the current best practice, incorporate all lessons learned and account for any equipment changes or deficiencies. - Maintain suitable and sufficient technical documentation onboard the FPSO to support the safe and efficient operation of subsea equipment. - As onboard Subsea Operations focal point, coordinate infield subsea operations and construction activity, facilitating field review and implementation of activity risk assessments and JSAs. Advise Snr Prod Ops Supt of relevant SIMOPS conflicts requiring management, such that accurate PTW can be raised to mitigate Field risk. - Ensure that well rates are adjusted and monitored as per Production Engineering targets. Also participate in the development of those targets, providing operations feedback and lessons from the field. - Capture production opportunities to maximise commingled production. Coordinate this with all connected parties - Using the competency system, ensure the Control Room Operators maintain the required level of competency to operate subsea wells if required.

Posted on 28 December 2021

Process Engineer

- Report to and provide support to the Lead Engineer (Process Project) on assigned projects and report to the Head – Process Engineering at the basis level. - Be responsible for all the engineering activities related ..FEED, Basic and detailed engineering phases. - Perform process engineering and design - Perform process simulations, prepare PFDs, UFDs, Heat and Material Balance - Perform Piping and Instrumentation diagrams - Prepare Process equipment datasheets, instrument datasheets - Perform relief and blowdown studies, PSV load scenario analysis - Perform flare network and flare radiation calculations - Carry out discipline internal check and put up for approval produced documents and drawings - To carry out / involved in 3D and /or 2D design and model reviews QHSE and improvement of the discipline work processes and procedures - Perform/ supervise all tasks assigned by the Process Lead Engineer including development of Process Engineering Drawings, Calculations and Reports for assigned Systems. - Participate in system and or 3D model reviews, HAZOP's & other multidiscipline reviews as required for assigned Systems

Posted on 28 December 2021

Project Engineer

- Assist the Section Manager in managing all work activities for the group of Sub-contractors, Supervisors and workers. - Study repair or conversion requirements defined in the Specifications, inspect jobs at site and clarify requirements with the Project Manager or Ship Officers. - Assist the Section Manager / Project Manager in preparing the Work Plan. - Delegate jobs to supervisors and plan the manpower required for the jobs in accordance to the budgeted man-hours provided by the Project Managers. - Resolve problems encountered by the Supervisors and manage the coordination between the different trades and Sections. - Raise or approve Issue Passes for materials and equipment required for the jobs accordingly. - Prepare the necessary Sub-contractors Requisition forms and seek formal approval from the Section Manager / Assistant Section Manager. - Monitor the work of sub-contractors to ensure that quality and workmanship conform to company standard. - Track and report daily work progress to the Section Manager / Assistant Section Manager or the Project Manager. - Ensure that all safety procedures and regulations are complied with, including the application of work permits and the periodic checks on housekeeping and safety equipment used in his Section / Shop and on board ships. - Actively observe, monitor and train their subordinates within their capacity. - Recommend relevant training courses for workers who require the necessary upgrading of skills. - Inspect work done and obtain the Superintendent’s or Ship Officer’s / Engineer’s approval. - Ensure that all legal requirements under the Singapore laws are complied with. - Ensure that all standard operating procedures comply with specifications, quality standards, statutory and regulatory requirements. - Any other assigned duties and responsibilities.

Posted on 23 December 2021

Project Engineer (Singapore)

Area: Production Facilities Role: As a Project Engineer, you are responsible for technical project supervision in line with the company ́s HSSE, technical specifications, budget, and planning. You will mostly work independently and report to the Production Facilities Manager on progress/setbacks, risks, and anomalies, and assist in obtaining contractors and third-party commitment on the activities. Requirements: We are looking for a conceptually and analytically strong project engineer who can act independently as well as in a team. You show ownership and have a problem-solving creative mind-set. Furthermore: • Eligible to work and live in Singapore • Fluency in English both written and verbal. Knowledge of the Portuguese language is a plus • a Bachelor/Master of Science degree in Petroleum, Mechanical, Naval, Civil, Chemical or Electrical Engineering • Experience in the Oil and Gas Industry • Knowledge of the Brazilian Offshore and Onshore Regulatory Framework is a plus Main activities • Be the representative for the FPSO project execution in Singapore. • Coordinate interfaces with stakeholders associated with Project / Controls /Operations / Subsea/ Logistics / Integrity / HSSE, • Maintain Scope of the Project –enforcement of technical part of the contract o General Technical Description including attachments o ProjectSpecifications o TechnicalProposalDocuments • Review of documentation developed by the FPSO contractor and participate of reviews (HAZID / HAZOPs, Workshops, Layout, etc.) • Coordinate queries and interfaces, ensure that Project Scope, HSSE, Regulatory Compliance and QA company standards are adhered to, • Participate in scope, risk, planning, cost, and schedule reviews • Supervise contracts, schedule and costs with other service suppliers, if applicable

Posted on 22 December 2021

Subsea Integrity Engineer

Key Aspects Of The Role Will Include Develop subsea inspection, monitoring, maintenance and repair (IMMR) documentation in support of greenfield project delivery and transition into facility operations Develop subsea inspection, monitoring, maintenance and repair (IMMR) documentation in support of brownfield and operational teams Assess and/or evaluate integrity/reliability of subsea pipeline, SURF and SURF control systems Interface with client’s Operations team Maximise value from emerging subsea IMMR technologies. Coordinate cross functional teams to deliver on key responsibilities in an assignment under tight deadlines Plan and manage assignments - plan, time, cost, outcomes etc. Proactively develop our client's knowledge base Experience And Qualifications An Engineering Degree; Extensive experience in subsea facilities engineering with focus on inspection, monitoring and maintenance (IMM); Experience in digital, data and information management/workflows in the context of asset management is essential; Experience in subsea pipeline repair systems is essential; Experience in/appreciation of integrity management of offshore renewable and energy transition assets (eg CO2/H2 pipelines) is preferred but not essential; Experience in other aspects of midstream and downstream integrity management (eg onshore pipelines, plant, refinery) is preferred but not essential; Previous experience working with an Operator within the industry is preferred but not essential. Our client offers an excellent remuneration & benefits package, a friendly, professional, dynamic and flexible work environment along with the opportunity to develop your career prospects within Australia and overseas.

Posted on 22 December 2021

Subsea Umbilical/Flexible Pipeline Engineer

Perform subsea installation engineering analysis mainly related to the flexible pipeline, umbilical but not limited to: Analysis for different pipeline installation activities. Assessing pipeline behavior during installation including strength and fatigue analyses. Analysis of riser and dynamic umbilical systems. Analysis for different subsea structure installation activities. Interfacing with project team. Providing offshore support to on-going installation activities. Preparing technical project documents (e.g. installation lay-tables and analysis reports). Performing checking of installation analysis work and reports. Liaising with project teams to obtain input data, agreeing installation feasibility and providing technical support in client reviews. Liaising with project teams and clients to clarify installation analysis concerns. Consolidating experience within the installation group discipline. Reporting progress to installation group manager and advising required resource adjustments. Mentoring and nurturing junior installation analysis engineers. Managing internal study projects as assigned.

Posted on 07 December 2021

Senior Geotechnical Engineer

KEY RESPONSIBILITIES : We are currently looking for a Geotechnical Senior Engineer. Reporting to the Design and Analysis section of the Engineering Department, your main activities will be the followings : - Be the focal point for geotechnical engineering on tenders and projects for the Oil&Gas and Renewable markets - Evaluate the quality of available site investigations on tenders and projects, and be capable of specifying and supervising complementary site investigations when needed - Perform the interpretation and the use of site investigation data in the detailed design of subsea structures - Undertake the detailed design and installation analyses of different types of offshore foundations such as gravity base, suction piles, and piles - Carry out soil/pipe interaction analyses, and support pipeline engineering for associated engineering such as installation analyses, stability analyses, buckling and walking assessment - Participate in the development of mitigation solutions for pipelines against stability issues, walking and buckling phenomenon when identified, - Understand the nature of the various geohazards affecting a site and evaluate their impact on the construction - Take part of offshore assignments, such as the supervision of offshore site investigations, foundation installation, and pipeline burial works - Contribute to Innovation and Technology Development related to soil/pipe and soil/structure interactions. PROFILE : The candidate should have a strong academic background and a minimum of 5 years of experience acting as a geotechnical engineer in an engineering consultancy environment. Ideally, the candidate will have: - Excellent interpersonal and technical skills and the ability to develop and lead geotechnical design teams - Excellent communication skills and confidence to liaise with clients - Excellent report writing skills with the ability to self-check and produce accurate work - A flair for innovation - A willingness to travel on short assignments overseas DESIRABLE SKILLS : - Experience of the specification and supervision of offshore site investigations - Experience of the design of foundations types including driven piles, monopiles, spud-cans, suctions caissons and gravity bases. - Experience of pipeline routing studies and near-mudline geotechnical characterisation studies would be beneficial.