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Darren Pierson

@darrenpierson

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Data analyst with 15+ years’ experience delivering insights through SQL, Excel, and automation.

United States

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What I'm looking for

I'm looking for a role where I can apply my data analysis expertise to solve real business problems, collaborate with cross-functional teams, and contribute to meaningful, data-driven decision-making

I am a results-driven data analyst with over 15 years of experience in transforming raw data into actionable insights. My expertise lies in data integrity, process automation, and enterprise reporting, utilizing tools such as SQL, Power BI, Palantir Foundry, and Excel. I have a proven track record of building scalable solutions that drive significant business impact.

In my current role at AT&T, I serve as a Subject Matter Expert across national infrastructure programs, where I have streamlined analytics and reporting processes. My efforts in automating lifecycle tracking tools have improved project visibility by 40%. I have developed SQL queries and Excel dashboards to monitor performance, ensuring standardized data across sources for consistent reporting.

Throughout my career, I have held various roles that have honed my skills in data analysis and project management. From resolving data inconsistencies as a Data Integrity Specialist to leading national project tracking tool development as a Senior Technical Project Manager, I have consistently delivered results that align with business goals. I thrive in collaborative environments and am passionate about leveraging data to drive strategic decisions.

Experience

Work history, roles, and key accomplishments

Current

Data Analyst

Current

AT&T

Jan 2019 - Present (6 years 4 months)

As a Data Analyst at AT&T, I serve as a subject matter expert across national infrastructure programs, streamlining analytics and reporting. I utilize Palantir Foundry for data retrieval and transformation, automate lifecycle tracking tools, and develop SQL queries and Excel dashboards to monitor performance.

Data Analysis SQL Excel Report Automation Data Integrity Process Improvement Cross Functional Collaboration KPI Tracking

Data Integrity Specialist

AT&T

Jan 2017 - Jan 2019 (2 years)

In my role as a Data Integrity Specialist at AT&T, I resolved data inconsistencies and ensured clean datasets. I built dashboards and reports using Power BI to highlight trends and collaborated on defining KPIs and optimizing workflows.

Data Integrity Power BI Workflow Optimization Dashboards KPIs Data Analysis Collaboration

Senior Business Manager / Developer

AT&T

Jan 2015 - Jan 2016 (1 year)

As a Senior Business Manager / Developer at AT&T, I designed internal tools using SharePoint and SQL, automated data tasks with Excel scripting, and defined business rules for internal analytics, ensuring alignment with user needs through collaboration.

SharePoint SQL Excel Scripting Business Rules Collaboration Data Automation

Senior Technical Project Manager

AT&T

Jan 2010 - Feb 2014 (4 years 1 month)

In my role as a Senior Technical Project Manager at AT&T, I led the development of a national project tracking tool, standardized reporting practices, trained users on analytics tools, and managed data coordination between internal teams and vendors.

Project Management User Training Analytics

Business Analyst

AT&T

Jan 2009 - Jan 2010 (11 months)

As a Business Analyst at AT&T, I built templates and dashboards for regional tracking, created executive reports using Business Objects, validated transport data for project planning, and supported integration efforts for improved transparency.

Business Analysis Dashboards Data Validation Project Planning Integration