Senior BI Analyst - SQL, Tableau, Power BI Expert

Hassaan Ahmed Siddiqui

Houston, TX • 347-***-**** • *******.****@*****.*** • linkedin.com/in/hassaan-ahmed-siddiqui

• https://github.com/Hahmedsid?tab=repositories

BI Analyst

Results-driven BI Analyst with 5+ years of experience in SQL, Tableau, Power BI, and data modeling, delivering scalable enterprise dashboards and automation-driven analytics solutions. Proven expertise in transforming complex datasets into actionable business insights and optimizing reporting systems for performance and reliability. Successfully reduced manual reporting effort by over 30 hours per month through automation and data pipeline optimization. Seeking to advance in building intelligent, AI-enabled BI ecosystems that enhance enterprise decision-making and data strategy. WORK EXPERIENCE

Upwork • Remote 11/2025 - Present

Freelance BI Developer • Full-time

• Eliminated manual reporting cycles by integrating email data pipelines with Tableau Server using automated workflow orchestration, resulting in fully automated reporting system.

• Built an AI lead generation system by employing tools across client workflows, resulting in a 20% improvement in lead generation.

• Engineered an AI-based automation systems by combining voice agents with Retell AI with client's CRM using Make.com resulting in increased booked appointments by 40%. HCL Technologies (Client: Apple Inc) • United States (Remote) 05/2024 - 10/2025 Senior Technical Lead • Full-time

• Saved 30+ hours per month by streamlining data transformation processes using optimized SQL scripting and scheduled automation frameworks, reducing manual workload.

• Accelerated dashboard performance by 80% by refining SQL queries and restructuring backend data models, improving system responsiveness and user experience.

• Delivered executive reporting solutions by translating business requirements into Tableau dashboards using structured SQL models, enabling faster strategic decision-making. HCL Technologies (Client: AGCO Corp) • Budapest, Hungary 01/2023 - 05/2024 Data Visualization Expert • Full-time

• Delivered real-time workforce dashboards by consolidating multi-source datasets into scalable Tableau-based BI models,resulting in improved operational visibility.

• Strengthened data accuracy by 25% through validation frameworks and structured UAT execution across reporting pipelines, resulting in reliable analytics outputs.

• Facilitated requirement discovery by engaging stakeholders in structured workshops and converting needs into BI solutions, resulting in aligned reporting outcomes. EPAM Systems • Budapest, Hungary 01/2021 - 10/2022 Business Intelligence Analyst • Full-time

• Developed 16+ Tableau dashboards handling datasets exceeding 1M records using advanced SQL and data modeling techniques.

• Reduced manual reporting effort by 60% through automation of ETL pipelines and scheduled data refresh processes, improving operational efficiency.

• Established KPI standardization by collaborating with cross-functional teams to design unified dashboard frameworks, ensuring consistent global reporting.

Datapolis • Budapest, Hungary 03/2020 - 10/2020

Data Science Intern

• Identified optimal pilot city selection by analyzing large-scale rental and geospatial datasets using Python-based analytical workflows, enabling data-driven decision-making.

• Optimized data processing time by 30% through structured cleaning and transformation of raw datasets using Python preprocessing techniques, accelerating analytics cycles.

• Discovered market demand patterns through exploratory and spatial analysis using Python and GIS datasets, generating actionable business insights.

EDUCATION

MS in Business Analytics

Central European university • Hungary

Bachelors in Business Administration (BBA)

2020

Institute of Business Administration • Pakistan 2015 CERTIFICATIONS

Certified Tableau Desktop Specialist 11/2023

Tableau

Data Analytics Essentials with Power BI 01/2021

Udemy

Databases and SQL for Data Science 07/2020

IBM, Coursera

SKILLS

Data & Analytics: BigQuery, Data Modeling, Data Visualization, ETL Pipelines, Exploratory Data Analysis, Problem Solving, Regression, Snowflake, SQL

BI & Tools: Communication, Excel, Figma, JIRA, Miro, Power BI, Tableau, Wrike Business & Strategy: Agile Methodology, Agile Scrum, Collaboration, Communication, Decision Making, Problem- Solving, Process Mapping, Requirement Gathering, Stakeholder Management, Strategic Thinking, User Acceptance Testing

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