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~/allen-joshua · data-analyst · analytics-engineer
Data Analyst / Analytics Engineer · SQL, Python, Power BI, ML

Data, AI, and decisions —
built to work together

SQL Python Power BI NLP & Sentiment Generative AI Vision Transformers ETL Pipelines

Building intelligent, data-driven systems at the intersection of analytics, AI, and decision-making. MS Data Science @ UT Arlington · F-1 OPT (CPT Available)

About Me Projects GitHub LinkedIn allenjoshua1217@gmail.com →
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Data Analyst Analytics Engineer Data Engineer BI Analyst Applied AI Engineer

00

About Me

I'm Allen Joshua — a Data Analyst and Data Science graduate student at the University of Texas at Arlington focused on building intelligent, data-driven systems that go beyond traditional analytics. My work sits at the intersection of data analytics, AI-powered decision systems, machine learning, and business intelligence — combining SQL, Python, Power BI, NLP, and modern generative AI workflows to transform complex data into actionable strategy.

What sets me apart is my ability to bridge analytical thinking with real-world problem solving in an AI-driven landscape. While modern AI tools can generate outputs, I focus on designing systems that ask better questions, validate information critically, interpret business context, and turn uncertainty into structured decision-making. I approach data not just as numbers to visualize, but as signals that need reasoning, evaluation, and human-centered interpretation.

Recently, I've been building projects centered around AI robustness, strategic decision intelligence, and applied machine learning — including systems that evaluate adversarial reliability in Vision Transformers and AI-powered platforms that synthesize real-time information into structured recommendations, comparison frameworks, and analytical insights.

I'm driven by curiosity, experimentation, and the belief that the future belongs to professionals who can combine data, AI, and critical thinking into systems that genuinely help people make better decisions.


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Work Experience

Data Analyst
Webeneur
May 2022 – Apr 2024
Mumbai, India

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Projects

PROJECT · 01

ViT Robustness Lab

Apr 2026
  • Developed an AI-powered application to evaluate the robustness of Vision Transformer (ViT) models against image perturbations.
  • Built an interactive web interface for real-time image upload, prediction analysis, and confidence visualization.
  • Integrated deep learning and explainability workflows to surface how and why ViT classifications degrade under adversarial conditions.
Outcome A practical tool for evaluating adversarial reliability in Vision Transformers — making AI robustness tangible and interpretable for practitioners.
PythonVision Transformers Deep LearningExplainability
PROJECT · 02

AI-Augmented Data Storytelling

Mar 2026
  • Built an AI-assisted pipeline to convert structured analytical outputs into executive-ready narrative reports using generative AI.
  • Designed prompt engineering workflows that generate insight-driven summaries directly from tabular datasets.
  • Automated end-to-end reporting, cutting manual write-up time from ~4 hours to under 2 hours per report cycle.
Outcome Analysts spend time on interpretation, not formatting — a structured, repeatable pipeline from data to decision-ready narrative.
PythonGenerative AI Prompt EngineeringAutomation
PROJECT · 03

Retail Sales Analytics

Jan 2026
  • Designed a normalized relational schema for 99K+ Amazon sales transactions, restructuring a flat CSV into a 6-table star schema — query runtime dropped from ~8s to ~5.5s on key aggregations (~30% improvement).
  • Wrote 25+ advanced SQL queries using CTEs, window functions, and multi-level aggregations to surface revenue trends, cohort-level customer segmentation, and seasonal demand patterns.
  • Built 5+ Power BI dashboards with drill-through filters and KPI cards — replaced static weekly Excel reports with a live, self-service analytics layer.
SQLPower BIStar Schema CTEsWindow Functions

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Skills

Analytics & Querying
SQLPythonBigQuery Power BIDAXPandas NumPyWindow Functions CTEsQuery Optimization
ML & AI
scikit-learnTensorFlow Vision TransformersNLP / TF-IDF Sentiment AnalysisGenerative AI Prompt EngineeringModel Evaluation
Visualization & BI
Power BITableau MatplotlibSeaborn ArcGISExcel KPI TrackingData Storytelling
Data Engineering & Tools
ETL Pipelinesdbt Power QueryPostgreSQL MySQLOracle DB Star/Snowflake SchemaGit Data Quality Monitoring

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Education

Master of Science — Data Science
Jan 2025 – Dec 2026
📍 Arlington, Texas, USA
Relevant Coursework   Data Mining · Machine Learning · Big Data Analytics · Statistical Modeling
BE — Information Technology (Honors in Data Science)
Aug 2020 – May 2024
📍 Mumbai, India
Relevant Coursework   Database Management · Data Structures · Machine Learning · NLP
Certifications
Google Data Analytics
Sheets · BigQuery · Tableau · SQL · R
Google AI Professional
Generative AI · Vibe Coding
Oracle SQL
Oracle DB · SQL Developer · PL/SQL
SQL for Data Science
MySQL · PostgreSQL · Joins · Window Functions

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