INDEPENDENT DATA MIGRATION, INTEGRATION & REPORTING CONSULTANT

Move, connect, and make sense of complex data.

I help organizations, software vendors, and implementation partners deliver complex data migrations, build reliable system integrations, and create reporting solutions that turn operational data into useful information.

From source analysis and mapping through SQL development, ETL, validation, reconciliation, automation, reporting, and cutover, I provide both hands-on technical delivery and experienced project leadership.

15+ years of experience · 25+ enterprise implementations · SQL Server, Python, Azure SQL · ERP, CIS, finance, billing, and operational systems.

More about me

MY EXPERTISE

Data Architecture

Data Migration

Data assessment, profiling, source-to-target mapping, SQL and ETL development, transformation, validation, reconciliation, mock conversions, and cutover.

Integration

Database and file-based integrations, interfaces, staging processes, scheduled jobs, stored procedures, APIs where applicable, monitoring, and process automation.

Reporting and Analytics

Operational and management reporting, SSRS, Power BI, SQL reporting, reconciliation reports, data-quality dashboards, and automated report delivery.

Tracking and Documentation

At Green Island Data, I will meticulously document and manage each phase of your data project using advanced tools like Jira and Confluence. His precise data conversion plans outline every step, ensuring transparency and providing a robust audit trail. From initial assessment to final migration and report generation, he will maintain the highest standards of accuracy and accountability.

What folks are saying about green island data

Attention to Detail

I’ve worked with Nathan on many projects, and his attention to detail is unparalleled. He is extremely reliable and a pleasure to work with.

Wayne

Senior PM

Amazing Work

Nathan was instrumental in our data migration from SAP to a MS Dynamics CIS solution, making the process seamless and clear. I highly recommend him for any of your data needs.

Jennifer

Client Utility Manager

Innovative

Nathan combines highly technical skills with a very open and easy-to-work-with personality. He would be an asset to any data-related project.

Mark

Managing Consultant

Experience and Certification

Extensive SQL Expertise

With years of hands-on experience in SQL, Nathan MacPherson has mastered the art of data management. His proficiency spans across MS-SQL Server, Oracle PL/SQL, and MySQL, developing complex stored procedures, views, and functions. This expertise ensures efficient data processing, integration, and reporting for all our clients.

Certified Oracle Cloud Database Professional

Nathan is a certified Oracle Cloud Database Migration and Integration Professional (OCI). This certification underscores his ability to design, implement, and manage Oracle databases in cloud environments. Clients benefit from his deep knowledge in optimizing database performance and ensuring seamless data migrations to the cloud.

Successful Large-scale Data Migrations

Nathan has led numerous large-scale data migration projects, such as the comprehensive upgrade of Evergy’s CCB and MDM systems to Oracle’s C2M platform. His meticulous planning and execution ensured data integrity and operational continuity, setting benchmarks for successful system transitions.

Proven Leadership in IT Projects

With over 16 years in the IT industry, Nathan has demonstrated exceptional leadership in various roles, including Senior Consultant and Data Services Manager. His ability to lead cross-functional teams and manage complex projects ensures timely and successful project completions, consistently exceeding client expectations.

Expertise in Reporting

Nathan is adept at developing detailed reports using DataBricks, SSRS, Crystal Reports, SmartLists and Power BI. His ability to transform complex data into actionable insights empowers clients to make informed business decisions. This skillset is crucial for clients looking to enhance their data visualization and reporting capabilities.

ETL Tools

Nathan’s deep understanding of ETL (Extract, Transform, Load) processes and data warehousing is a cornerstone of Green Island Data’s services. Utilizing tools like Oracle Data Integrator (Data Pump), SSIS, and Talend, he develops robust solutions that streamline data integration and enhance data accessibility for analytical and operational purposes.

Consultation

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