Experience

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  Construction design share company , ethiopia

  Mar 2002 - Aug 2006

  Water works engineer

  Construction Design Share Company is an Architectural & Engineering Consulting firm, which has been rendering a wide range of services in Building, Road & Water Works Construction Consultancy. The Company has played its prominent role for the construction industry in Ethiopia. Water Works Construction Consultancy includes system designs including source development, head works, treatment plants, distribution network, including detailed Engineering designs for buildings (commercial, industrial, social, governmental and residential) and different infrastructures.Role Overview: Civil Engineer, specialise in water-based projects. My role at CDSC as Senior water works Engineer- III deals with the water resource provision of clean water; design and of waste water treatment system; disposal of waste water sewage; storm water drainage system prevention of flood damage. • Conducted Project management, planning, coordination, prepared and reviewed technical document, tender development and evaluation, bid contract, prepared documentation for planning approvals, deal with consultant on behalf of the client.• Scoping investigative drilling to assess groundwater resources• Supervising aquifer testing• Quantifying water availability in different geological units• Mapping extent of different aquifers• Investigating and mapping different water qualities• Developing groundwater monitoring plans• Providing inputs into groundwater resource models• Coordinating and managing multiple drill teams• Conducting field investigation and interpretations of hydrogeological and topographic surveying data.• Design water supply distribution, waste water drainage, storm water system and structural design for related infrastructures. • Prepared technical specification documents, evaluation and selection of contractors/consultants based on technical and financial assessment.• Periodical supervision and commissioning signing approval on behalf of the client. Show less

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  Leuphana universität lüneburg, germany

  May 2009 - Dec 2009

  Research assistant
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  Centre for environmental risk assessment and remediation (cerar) - university of south australia

  Apr 2010 - Apr 2015

  In this position I was the hydrogeologist to develop groundwater flow and contaminant transport models to design and implementation of enhanced in-situ bioremediation of chlorinated hydrocarbon contaminated groundwater. The site is complicated by the fact that complex subsurface lithology with low- hydraulic conductivity, low hydraulic gradient and low water bearing aquifer posing a challenge for in situ remediation. The new technique allows the delivery of the amendment to the target area quickly and effectively. During my role, I have developed more accurate vapour intrusion semi-analytical model for effective vapour intrusion site screening and health risk assessment at volatile organic contaminated land. Consulted a number vapour intrusion risk assessment projects for existing & new development.I was responsible for the delivery of a range of projects from inception to completion. My experience includes:• Conceptual Site Model Development• Drilling program design• Well design: Grain size analysis; Screen(s) selection; Casing, centralizer selection; Filter pack design; Annular seal design; Well development procedure selection; Adapter selection; Pump selection• Aquifer test design: Step draw down; Constant rate; Recovery; Shut In; Packer; Drill stem tests; Tracer tests; Aquifer test analysis (slug and tracer testing)• Development of Data Quality Objective• Soil sampling and Water sampling protocols based on the constituents of concern• Vapour intrusion site assessment for subsurface and indoor air sampling and vapour intrusion modelling for site screening and human health risk assessment. --- Software skill:J&E Model, BioVapor, 2DPVI, Visual Modflow flex, FEFLOW, GMS, MODFLOW-SURFACT, MT3DMS, RT3D, PEST/MODAC, AqAQ, Hydrus, ArcMap, AutoCAD, Digger, Surfer, AQTESOLV, proficient IT skills in working with word processing, spreadsheets, various presentation packages and statistical softwares (SPSS & Origin). Show less Research assistant, Contaminated and Hazardous Waste Site Management Monitored a full-scale soil and groundwater remediation, supervised drilling and installations of class 2 groundwater monitoring wells, sampling and analytical techniques for environmental contaminants in soil, air and groundwater . Conducted groundwater flow and contaminant transport modelling using FEFLOW software package. Completed a number of contaminated and hazardous waste management workshops, local and international conferences; Courses include groundwater and soil sampling; monitoring well installation; groundwater remediation techniques and technologies; DNAPL and LNAPL source zone characterisation and remediation technologies; subsurface characterization tools and techniques; site characterization and conceptual model development; groundwater modelling; contaminated site project management; environmental data management.Role Overview: Research assistant role within the CERAR site investigation, risk assessment and remediation team. Key Achievements:• Developed standard operating procedure for groundwater and soil sampling. Led SAQP and DQI. • Patented material preparation for the remediation of contaminated surface water and soils;• Collecting groundwater, soil and air samples for chemicals of concern at contaminated sites; and• Conduct laboratory analysis of samples for chemical of concern, interpretation and reporting. Show less

  • Research Associate, Hydrogeologist

    Jan 2013 - Apr 2015

  • Research Assistant

    Apr 2010 - Jan 2013
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  University of newcastle, global centre for environmental remediation (gcer),

  Apr 2015 - Jan 2022

  Principal environmental scientist, senior research fellow

  As the GCER project leader and delivery: Site investigation, risk assessment and remediation of contaminated land, my role had a dual focus that included; develop and implement a more accurate environmental risk assessment tools using risk based approach and develop an innovative remediation technology to manage and remediate contaminated land underpinning science, and publish the project and research out come as a technical report and peer-reviewed scientific journals. My role encompasses activities that support hands-on workshops and short course development on risk assessment and remediation techniques for environment management professionals.I am responsible for the delivery of a range of projects from inception to completion. My experience includes:• Conceptual Site Model Development• Review of geological reports• Aquifer type identification• Drilling program design• Well design• Aquifer test design• Contaminant Hydrogeology• Groundwater Flow & Transport Modelling • Development of Data Quality Objective• Soil sampling and Water sampling protocols based on the constituents of concern• Monitoring well design (groundwater, soil vapour): Monitoring well purpose determinations (groundwater sampling, instrumentation selection, sampling requirements)• Working knowledge variety of regulations in Australia• Remedial option selection (with engineering and risk assessors, needs to be a group of skill sets represented)• Remediation confirmation assessment• Vapour intrusion site assessment for subsurface and indoor air sampling and vapour intrusion modelling for site screening and human health risk assessment. • Technical / scientific advice to industrial related projects- PhD and Honour student supervisions- Teaching masters course: Hydrogeology and Environmental Remediation; Contamination of terrestrial environment - Peer reviewer at a number of Elsevier and Springer journals Show less

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  University of newcastle

  Apr 2015 - now

  • Adjunct Senior Lecturer

    Sept 2021 - now

  • Senior Research Fellow, Hydrogeologist

    Apr 2015 - Sept 2021
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  Yeka environmental solution ​pty ltd

  Jan 2016 - now

  Founder

  Founder at YEKA Environmental Solution ​Pty Ltd # Environmental Impact Assessment | Environmental Risk Assessment and Remediation | Natural Resource Management

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  Douglas partners pty ltd

  Sept 2021 - now

  • Senior Associate / Senior Environmental Consultant

    Jan 2024 - now

  • Senior Environmental Consultant

    Sept 2021 - now