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  • Posted: Jan 13, 2022
    Deadline: Jan 27, 2022
  • International Energy Services Limited (IESL), established in 1990, is a specialist, multidisciplinary, energy services company that provides integrated, client-focused and cost-effective services in the oil and gas industry. IESL provides clients with engineering expertise throughout the project lifecycle, from feasibility studies and scope documents to d...
    Read more about this company


    Lead Data Engineer

    Location: Port Harcourt, Rivers

    Job Purpose / Objective

    • Supporting Analytics Data architecture, Data Governance, Data Quality Assurance, Modeling, Data Landscape documentation and data pipelines for all data objects supporting Operational Reporting and KPI’s.

    Main Accountabilities

    • Support in the design, implementation and update of NLNG Data architecture, modeling, and process design for raw data objects, intermediary, aggregate tables across a variety of subject matters and data types.
    • This includes Big Data ETL and ELT planning and implementation, and coordination with other NLNG business areas or departments.
    • Design, construct, and manage the data lake environment including: Data ingestion, staging, data quality monitoring, and business modelling
    • Develop, construct, test and maintain architectures (databases and large-scale processing systems)
    • Design, develop and implement technical solutions in SQL environment (databases, SQL, data marts, integrations)
    • Develop visual reports in Power BI; Maintain and develop queries and stored procedures using T- SQL and Support data integrations
    • Maintaining, securing and protecting first party data and supporting end user consumption for key areas.
    • Development of internal tools and procedures to make data more accessible.
    • In collaboration with the data analytics & reporting team, manage and support Azure Machine Learning environment.

    Job Requirements

    • A University Degree in Computer Sciences or Physical Sciences or Engineering; professional qualifications will be an advantage.


    • 10 to 12 years post-graduation experience, out of which 7 years should be a similar role within the IT department or Digital function or R&D function of a reputable organization preferably Oil & Gas company.

    Competency Requirements:

    • Highly skilled in SQL programming in T-SQL building stored procedures and jobs
    • Strong functional understanding of Azure Machine Learning
    • Ability to manage large volume data integration/ETL; experience with SQL Server Integration
    • Services (SSIS) including ability to configure SQL Server agent
    • Expertise in identifying and mapping data elements across multiple systems
    • Knowledge of Power BI report visualizations, Data Analysis Expressions (DAX), Power Query (M), and Power BI data modeling
    • Strong understanding of data integration, quality and validation
    • Strong understanding of MDM, Data Warehouse/Data mart and relational database design
    • Excellent written and verbal communication skills and able to interact with multiple IT teams and business partners both formally and informally
    • Effective time management, ability to multi-task with changing priorities while continuing to provide exceptional client service
    • Ability to work in a fast-paced agile environment (tools and processes).

    Method of Application


    • The Curriculum Vitae must be properly titled and uploaded (e.g CV_Data Analyst_Chukwu Abiola Ahmed)
    • Relevant Credentials, Professional and membership Certificates, where applicable, must be uploaded as a single PDF file
    • Application for more than 2 positions will be automatically disqualified.
    • Only applications received via the IESL online portal shall be considered.
    • Only Shortlisted Candidates will be contacted.
    • Any false information provided during or after the application process will lead to outright disqualification of such candidate(s).
    • If you have any challenge with the application portal, please email: for support only.
    Interested and qualified? Go to International Energy Services Limited (IESL) on to apply

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