- Review contract and specifications - Assist Project Managers and Superintendents as requested - Obtain pricing from subcontractors and vendors for bidding scope of work- Obtain pricing and negotiate for change of orders- Coordinate with subcontractors, suppliers and workforce to resolve project challenge and conflicts - Requisition equipment and material delivery as needed it to accomplish project needs - Manage submittals, contract documents and project shop drawings. - Coordinate and request project needs such as inspectors, survey staking, utility locations and testing.- Manage ground improvement subcontractor with soil nail, shot Crete, sheet pipe, micro piles and stone columns.- Manage creek restoration subcontractor, noise wall subcontractor and site concrete subcontractor. - Coordinate with Structural Bridge fabricator, rigging and assembly subcontractor to install Rock Creek Pedestrian Bridge.

Part of pre-construction Clark civil team focus on Earthwork, Site Utility, Deep Foundations, and Geotechnical Instrumentation.• Review drawing, specifications and related documents and understand the scope of work to bid.• Responsible for quantity take-off • Obtain pricing from different vendors and subcontractors for self-estimates.• Prepare self-estimates using Heavy Bid.• Responsible to engage with subcontractors, scoping their work and receiving bids.• Constant communication during the bid process with subcontractors by email, phone calls and online meetings.

Support and coordinate activities with superintendents to ensure project goals are accomplished within the time frame. • Assist project team to achieve project milestones• Revise, coordinate submittals, transmittal, RFI’s • Time and quantity tracking • Purchase orders according to the project needs• Daily coordination with superintendents for the structural concrete of the project. • Coordinate with concrete related subcontractors as formwork, rebar delivery and fabrication, shop drawings, return and delivery of equipment. • Coordinate with precast pipe subcontractor for storm drainage system.

Project: Northeast Boundary Tunnel Project (NEBT) Scope of work: slurry wall, cement-bentonite wall, jet-grouting, secant pile walls.The Northeast Boundary Tunnel (NEBT) is a large, deep, sewer tunnel that will increase the capacity of the existing sewer system in the District, significantly mitigating sewer flooding and improving the water quality of the Anacostia River. In addition to the tunnel, DC Water will be constructing diversion facilities along the tunnel alignment to capture flows from the existing sewer system and divert them to the tunnel. The NEBT will connect with the First Street Tunnel and Anacostia River Tunnel to provide a complete gravity system from Northwest DC to Blue Plains Advanced Wastewater Treatment Plant, where all flows captured by the tunnel system will be delivered for treatment prior to discharge to the Potomac River• Supervision of Slurry wall shafts, Cement-Bentonite Wall, Jet grouting and Piling.• Site Safety Coordination• Quality Control Coordination• Time Tracking and Payroll uploads• Assist Project Manager as directed, writing RFI's, purchase order, T&M, quantities, transmittals,Submittals and revision of shop drawings.

• Drilling supervisor logging soil/rock Purple Line (ECS-Mid Atlantic) for Maryland State Highway Administration, I-395 (Geoconcepts Engineering) and I-66 (Terracon Eng) for Virginia Department of Transportation.• Working in field identifying and testing soil material using nuclear gage, and concrete testing for the project of DC Water in First Street, Division D, and Division I.• Working with AutoCAD drawing maps for work permits. • Part of the writing report for geotechnical surveying proposal of retaining wall.• Weekly report for the project assigned, and develops strong relationship with the client.

● Testing the soil for the compaction rate of the backfill for installation trench, water lines, roads,storm channels, electrical conduits.● Supervising the daily advance of the construction in the project area and write a report to my directmanager.● Performing laboratory testing, concrete cylinder compression test.

● Working with AutoCAD and GIS, and Modelling specialist to create GIS layers for the project, georeferencing,digitalizing, editing data. Transform data from AutoCAD to GIS, also other formats as require.● Develop input data for the hydrogeological model.● Develop Oil pollution modelling using Gnome, noise modelling using OrbiGIS.● Design figure, and maps for the final reports in ArcGIS.

● Developing hydrogeological conceptual and numerical models in MatLab C++ and calibrate every model with thedata obtained of Auta Spring in Malaga, Spain.● Interpretation of every model and compare between them with Monte Carlo sampling and sensitivityanalysis.● Analyzing and interpreting chemical and pumping test data.

• Tucush Mining Project, Antamina, Ancash – PeruElaborated isolines, cross sections and Stiff diagrams. Made a surface model of bathymetry of the Condorcocha lake. Direct coordination with the client. • Hydrogeological conceptual model in Yanacocha West. MYSRL, Cajamarca – Peru Part of multi-disciplinary study developing inputs for SEEP model 2D, 15 cross sections model in the open pit. Elaborated isolines with ground water level. Developed aquifer test graphs.

Delegated in GIS and Data Management, coordinator of 3 GIS specialists for development Environmental Management, hydrological and hydrogeological reports and support in geographic information to hydrological and hydrogeological modelers. Report my manager of daily task.

Part a multidisciplinary group in Enviromental Management Deparment, calculated parameters in GIS and drawing figures for Enviromental Impact Assessment.

• Chanca exploration project, Oyon - PeruParticipated in exploration project, drawing and updating geological maps in Autocad, AutocadMap and Mapinfo. Georeferencing regional maps, plotting boreholes and soil samples.• Mallay exploration project, Churin - PeruParticipated in exploration project, drawing and updating geological maps in tunnels and drifts in Autocad ,AutocadMap and Mapinfo. Georeferencing regional maps, plotting boreholes and soil samples.