GH

Open to opportunities

Gary Hall

@garyhall

Experienced Power BI developer delivering data-driven reporting solutions.

What I'm looking for

I seek freelance or permanent roles leveraging Power BI and BI/reporting expertise, working collaboratively on compliant, data-driven solutions with room for technical ownership and process improvement.

I am an experienced software developer and Power BI specialist currently based in Germany, working freelance to deliver AI-driven Power BI reporting solutions for housing associations. I focus on meeting regulatory reporting requirements and translating complex data into actionable insights.

Previously, I spent over two decades as a Senior Software Developer building and maintaining core housing systems, working with Clarion, VB.NET (WebForms), C#, SSRS and full-stack components. I have a strong foundation in database and back-end development, having worked on accounts and billing systems using embedded SQL and ProC.

My background also includes roles in testing, process training and operational positions where I redesigned test software and led process improvements that prevented faulty product distribution. I bring a pragmatic approach to problem solving and a history of improving systems through code and process changes.

I value flexible freelance engagements that allow me to apply deep technical expertise while collaborating with teams to deliver reliable, compliant reporting and robust application features.

Experience

Work history, roles, and key accomplishments

VG

Current

Power BI Developer

Current

Volaris Group

Apr 2024 - Present (1 year 11 months)

Deliver AI-driven Power BI reporting solutions for Scottish housing associations to meet Power BI Annual Return of Charter (ARC) requirements. Work remotely to design, implement, and deploy dashboards and reporting pipelines.

Power BI DAX Data Modeling SQL ETL Remote Collaboration Dashboard Design

SS

Senior Software Developer

SDM Housing Software

Feb 2003 - Mar 2024 (21 years 1 month)

Developed and maintained SDM's core housing system across Clarion and later VB.NET/C# WebForms, contributing full-stack features and desktop applications. Drove migrations and enhancements from legacy Clarion code to modern .NET components.

C VB.NET SQL desktop application development Full Stack

SI

Junior Analyst Programmer

SCT International

Jan 1998 - Jan 2003 (5 years)

Performed back-end development on SCT's accounts software using ProC with embedded SQL and supported critical end-to-end customer billing processes. Maintained and enhanced billing routines to ensure accurate invoicing.

Back End Developer Billing Systems Pl SQL Debugging Performance Tuning

IB

Process Trainer

IBM/Xyratex

May 1993 - Dec 1995 (2 years 7 months)

Led software-driven testing of flex-circuit components in a manufacturing environment and trained staff on functional test systems, identifying process flaws that prompted software redesign and a product recall.

Test Automation Functional Testing Quality Assurance Testes De Software Test Systems Root Cause Analysis

PF

Data Entry Clerk

P&O European Ferries

Oct 1992 - May 1993 (7 months)

Performed DOS front-end database entry and general warehouse duties including stocktaking, supporting operations and inventory accuracy.

Data Entry Inventory Management

Education

Degrees, certifications, and relevant coursework

UP

University of Portsmouth

Bachelor of Science (Honours), Physics

1996 - 1997

B.Sc. (Hons) in Physics completed with coursework and practical studies in physics.

UL

University of Liverpool

Master of Science, Advanced Scientific Computation

1992 - 1993

M.Sc. Advanced Scientific Computation with introduction to databases via a DOS front-end and general warehousing duties.

Tech stack

Software and tools used professionally

Gmail

SQL

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