I build data systems end to end: ETL pipelines, web scrapers, dashboards, and AI-powered search (embeddings, vector databases, RAG). 10+ years in data science and engineering, most of it at Bank of Georgia — Airflow-based ETL and migration pipelines, credit risk models (xgboost), NLP for customer feedback analysis, and full-stack internal tools (Flask, Django, React). Earlier, I optimized 24/7 call distribution for Georgia's national emergency center using queueing theory. On Upwork: 11 completed jobs, 5.0 rating, 800+ hours, $60K+ earned. Projects include a kNN vector search system, a large-scale hashing & clustering pipeline (AWS, Postgres), real-time trading dashboards (Dash, Bokeh), and Selenium-based data collection. A client wrote: "He demonstrated his expertise in using Python and Selenium for real-time data collection... His user interface design was intuitive." What I take on: • Data pipelines & ETL — Airflow, Python, Postgres, AWS • Web scraping & monitoring — Selenium/Playwright, scheduled jobs with alerts • Dashboards — Dash, Bokeh, real-time data visualization • AI search & retrieval — vector databases, embeddings, RAG over your documents or data MSc in Mathematics. I write simple, explicit code that someone else can maintain — no clever abstractions. I respond fast and deliver working systems, not prototypes.

🚀 Full-Stack AI Automation Engineer | RAG, n8n & Data Engineering I help businesses replace manual data work and disconnected tools with AI-powered systems, full-stack applications, and reliable data pipelines that run without babysitting. As a Senior AI Automation & Data Engineer at a UK-based fintech, and a Top Rated freelancer with a 100% Job Success Score, I've spent 3+ years building full-stack AI agents, RAG pipelines, n8n automations, and production data engineering systems that turn multi-day manual processes into automated ones: ⚡ Rebuilt a data migration pipeline that took 5–6 days of manual engineering — now runs in under 10 minutes, fully automated. 🤖 Built an LLM-powered document matching pipeline (Claude, RAG-style retrieval) that cut a 3–4 day manual regulatory review process down to a fraction of that time. 💬 Built a full-stack natural-language-to-SQL platform (FastAPI + Angular + OpenAI/Claude + LangChain) that let non-technical users query databases directly — cutting ad-hoc reporting requests by 70%, with sub-30-second query generation. 📊 Partitioned a 30M+ row SQL Server table with aligned indexing for an 80% reduction in query execution time. ☁️ Migrated a 2TB+ SQL Server database to PostgreSQL with full validation and 100% data consistency, cutting licensing costs. 🤖 AI Automation & Agents 🔹 AI agent development, RAG pipelines, prompt engineering 🔹 LLM API integration (OpenAI, Claude) into real business workflows 🔹 n8n workflow automation connecting business tools, CRMs, and data sources 🔹 RAG-based virtual assistants and AI SMS/voice agents 🔄 Data Engineering 🔹 ETL pipeline design, data validation & cleansing, metadata-driven frameworks 🔹 dbt, data warehousing, Snowflake 🔹 Orchestration & streaming: Apache Airflow, NiFi, Kafka, Spark/PySpark 🗄️ Database & Cloud 🔹 SQL Server, PostgreSQL — query optimization, partitioning, stored procedures 🔹 AWS (S3, Lambda, EventBridge), Terraform, Docker, Kubernetes 💻 Full-Stack Delivery 🔹 Frontend: React, Angular 17, Vue, TypeScript 🔹 Backend: Python/FastAPI, .NET Core, Node.js/NestJS, Flask 🔹 REST API design end-to-end — building complete SaaS products from database to UI I work full-time as a Senior AI Automation & Data Engineer at a UK fintech, so I bring production-grade standards — validation, observability, security — to every freelance engagement, not just prototype-quality work. 🎯 If you need a full-stack AI agent or automation workflow built, a data pipeline that actually holds up in production, or a database that's slow and needs fixing, let's talk about what you're trying to solve. Also searchable for: AI Automation Engineer, AI Agent Developer, RAG Pipeline Developer, n8n Automation Expert, Full-Stack Developer, ETL Pipeline Developer, Data Engineer, Python Developer, SQL Server to PostgreSQL Migration, SaaS Development.

I’m a backend and full-stack software engineer with experience building web applications, APIs, databases, automation tools, integrations, and production systems. My background includes C#, JavaScript, Perl, PHP, SQL, REST APIs, MySQL, PostgreSQL, WordPress, Linux, Azure, and Git. I focus on practical software that improves business operations, replaces manual processes, and is reliable in day-to-day use. I’m comfortable handling the full development lifecycle, including requirements, architecture, development, deployment, troubleshooting, maintenance, and user support.

🟩 Ranked top 𝟭% of all Upwork talent 🟪 𝟯𝟰 Happy Customers✍ 🟦 Hi, I’m Taha, a 𝗦𝗲𝗻𝗶𝗼𝗿 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿, 𝗗𝗮𝘁𝗮 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 & 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with 𝟵+ 𝘆𝗲𝗮𝗿𝘀 of experience building scalable data platforms, data warehouses, ETL pipelines, and AI solutions for 𝗵𝗶𝗴𝗵-𝗴𝗿𝗼𝘄𝘁𝗵 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀. In my professional career, I have worked with well-established USA-based companies, which include 𝑹𝒆𝒈𝒆𝒏𝒆𝒓𝒐𝒏 and 𝐈𝐧𝐨𝐯𝐚𝐥𝐨𝐧, along with some startups, including 𝗜𝗺𝗽𝗲𝗹 and 𝗣𝗲𝗿𝗰𝗵 𝗜𝗻𝘀𝗶𝗴𝗵𝘁𝘀. I am certified in the following technologies: ✔️ AWS Cloud Certified ✔️ Snowflake Certified ✔️ Power BI Certified ✔️ Python, PySpark Certified 💎 Key Skills: I have hands-on expertise in the following tools and technologies : 🌟 Data warehouse and Database: 1-Competent in working with Snowflake, AWS Redshift, RDS, SQL Server, Oracle Autonomous Data Warehouse 🌟 ETL & Integration tools: 1-Excellent command on DBT, AWS GLUE, Databricks, Microsoft SSIS, Fivetran, AI, LLMS, RAG, Langchain 🌟 AWS Cloud: 1- Proficient AWS Data Engineer with expertise in Redshift, Glue, Lambda, Athena, S3, RDS, EC2, Step Functions, CloudFormation. 🌟 Programming Languages: 1-Hands-on experience working with Python (PySpark, pandas), SQL, and JavaScript 🌟 Reporting tools 1-Extensive experience in working with Power BI and Metabase. 𝐈𝐦𝐩𝐨𝐫𝐭𝐚𝐧𝐭 ❗ I will take full responsibility for the final result and finding solutions to your complex problems.

I help businesses turn raw data, images, and operational problems into practical AI/data solutions that create measurable impact. I’m Gustavo, a Data Scientist and AI/Computer Vision Engineer with hands-on experience building real-world systems from idea to deployment. My focus is simple: understand the business problem, define clear metrics, prototype fast, and deliver solutions that actually work in production. What I can help you with Computer Vision & Edge AI I build real-time detection, tracking, OCR, and video analytics systems using YOLOv8, OpenCV, TensorRT, NVIDIA GPUs, Jetson, Raspberry Pi, and RTSP camera streams. I can help with people counting, object detection, sports analytics, surveillance analytics, quality control, and custom vision pipelines. Data Science & Machine Learning I work end-to-end with Python, SQL, Pandas, NumPy, scikit-learn, NLP, statistical analysis, predictive models, clustering, recommendation systems, and model evaluation. I can take messy data, clean it, structure it, extract insights, and build models that support better decisions. Dashboards & Business Insights I create clear reports and dashboards in Power BI, Excel, Google Sheets, and Python so teams can track KPIs, understand performance, and make decisions faster. Automation & Deployment I can integrate APIs, automate workflows, build REST/WS services, deploy models on cloud, edge, or on-premise environments, and set up simple monitoring so the system is reliable and easy to maintain. Why work with me? I don’t just build models. I build practical solutions. My approach is fast, clear, and focused on results: define the goal, build the solution, test it, measure it, and improve it. I’m comfortable working with both technical and non-technical teams, and I always aim to make complex AI/data work easy to understand and useful from day one.

𝗜’𝗹𝗹 𝗱𝗼 𝗮 𝗾𝘂𝗶𝗰𝗸 𝗚𝗔𝟰 + 𝘁𝗿𝗮𝗰𝗸𝗶𝗻𝗴 𝗵𝗲𝗮𝗹𝘁𝗵 𝗰𝗵𝗲𝗰𝗸 𝗯𝗲𝗳𝗼𝗿𝗲 𝘄𝗲 𝘀𝘁𝗮𝗿𝘁 — 𝗻𝗼 𝗰𝗼𝘀𝘁. Most clients come to me with broken tracking, mismatched numbers, slow dashboards, or unclear attribution. GA4 doesn’t match ad platforms. Leads don’t connect to revenue. BigQuery costs are high. And teams don’t trust the data. That’s where I help. I design clean, scalable analytics and data pipelines that connect GA4, ads, SEO, CRM, and backend systems into one source of truth — so you can confidently make decisions, scale campaigns, and see real ROI. ➤ 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲𝘀 ✅ Analytics Engineering & Data Engineering ✅ End-to-end ELT / ETL pipeline design ✅ BigQuery data modeling (fact & dimension tables) ✅ GA4 + GTM advanced implementations ✅ Marketing, product & lead-gen analytics ✅ Attribution & revenue tracking ➤ 𝗦𝗸𝗶𝗹𝗹𝘀 ✅ Python & SQL ✅ Airbyte & Fivetran ✅ BigQuery Optimization (Partitioning, Clustering) ✅ Cloud Functions & APIs ✅ Data Validation & Monitoring ✅ Slack Alerts & Failure Handling ✅ ETL Pipelines ✅ GHL (GoHighLevel) Automation ✅ n8n Workflow Automation ✅ Make Automation ✅ Zapier Integrations & Automation ➤ 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 ✅ GA4 setup, audits & event architecture ✅ GTM debugging & complex trigger logic ✅ Ads data integration (Google, Meta, TikTok, LinkedIn) ✅ SEO & GSC analytics modeling ✅ CRM (HubSpot) attribution & enrichment ✅ Looker Studio dashboards for execs & teams ➤ 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 ✅ Senior Analytics Engineer – MarketLytics ✅ Built pipelines for GA4, GSC, TikTok, LinkedIn, Mixpanel ✅ Designed scalable BigQuery warehouses ✅ Enabled marketing & product decision-making with clean data ➤ 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 ✅ Lead Generation ✅ SaaS ✅ E-commerce ✅ Agencies ✅ Local Services ✅ Performance Marketing ➤ 𝗗𝗼𝗺𝗮𝗶𝗻𝘀 ✅ Digital Analytics ✅ Conversion Tracking ✅ Marketing Attribution ✅ Data Warehousing ✅ Automation & Tooling ✅ Reporting & BI ➤ 𝗧𝗼𝗼𝗹𝘀 ✅ Google Cloud Platform (GCP) ✅ BigQuery ✅ GA4 & Google Tag Manager ✅ HubSpot & CRMs ✅ Looker Studio ✅ Airbyte, Fivetran, Python, SQL ➤ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✅ Clear communication ✅ Business-focused analytics (not just data) ✅ Clean, documented & scalable solutions ✅ Fast debugging & honest advice If you want accurate tracking, trusted dashboards, and clear attribution, 📩 Send me a message and I’ll review your setup first — free. 🔑 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 Analytics Engineer, Data Engineer, BigQuery, GA4, Google Tag Manager, GCP, ETL, ELT, Python, SQL, Airbyte, Fivetran, Marketing Analytics, Conversion Tracking, Attribution Modeling, Looker Studio, HubSpot, CRM Analytics, Google Ads, Meta Ads, TikTok Ads, LinkedIn Ads, SEO Analytics, Google Search Console, Data Pipelines, Data Modeling, Lead Generation Analytics, Revenue Attribution, Cloud Functions

Greetings! I'm Ashhar and I’m a data scientist, economist, and researcher with experience in data analytics, statistics and econometrics, machine learning, market intelligence, branding, and business writing. I provide introductory, standard, and advanced* Economics and DataTech solutions in multiple areas: ➢ Cross-Sectional, Time Series & Panel Data Analysis ➢ Regression and Classification, ➢ Financial & Economic Modeling ➢ Machine Learning Algorithms ➢ Data Modeling, Database Engineering, and Pipelines ➢ Geographic Market Mapping I work with a variety of tools: ➢ MS Excel, Google Sheets ➢ EViews, STATA ➢ Python, R/RStudio ➢ SQL, MySQL, BigQuery, Access ➢ Tableau, Power BI, Looker I also provide Marketing Mix Modeling (MMM), helping businesses understand which channels actually drive revenue and how to reallocate spending accordingly. As a data analyst, I have worked with a variety of data sets, and am skilled in cleaning, transforming, and modeling data to derive actionable insights and make accurate predictions. As an economist, I have a deep understanding of macro and microeconomic principles and their applications in enterprises (start-ups, SMEs and large businesses) and non-profits. As a research writer, I have written many articles on economics, technology and business. I am editor-in-chief of Effective Thoughts, a writing platform I founded. If you're looking for a data analyst, economist, or researcher who can help you make sense of complex data, streamline your data workflow, and derive actionable insights, please don't hesitate to contact me. I'm excited to learn more about your project and help you achieve your goals! *My agency (WISE Solutions) and I also offer intensive and extensive econometric modeling and DataTech services. If your project needs a specialized, tailored, and team-driven analytical approach, I’d be happy to help!

I help businesses automate data workflows and build intelligent systems through reliable, production-grade solutions. What I deliver: Document & Data Automation — OCR, PDF extraction, automated data capture from multiple formats into structured databases. I've built pipelines that extract hundreds of documents weekly with 95%+ accuracy. API & System Integration — Connect your tools (Google Sheets, Docs, HubSpot, Airtable, databases) so data flows automatically without manual re-entry. I specialize in reducing data silos and keeping systems in sync. ETL & Data Pipelines — Design and build reliable workflows that extract, clean, validate, and load data into your systems. These run continuously, keeping your data synchronized and actionable without human intervention. Google Workspace Automation — Google Sheets formulas aren't enough? I build Apps Script automations, workflow triggers, and integrations that make your Google ecosystem work smarter. From custom functions to complete task automation. AI & RAG Systems — Build intelligent systems powered by AI. I specialize in Retrieval-Augmented Generation (RAG) pipelines that let AI models work with your specific data, custom AI workflows integrated into your existing systems, and LLM-powered automation that learns from your documents and processes. API Development — Design and build custom APIs that power your applications. From REST APIs to integrations with third-party services, I create scalable, well-documented APIs that your team can easily maintain and extend. Why work with me: ✓ Production-focused — I build solutions designed to run reliably at scale, not quick hacks. Error handling, validation, monitoring, and documentation are built-in. ✓ End-to-end thinking — I don't just code. I understand your business problem, design the workflow, implement it, and ensure you can maintain it. ✓ Recurring revenue potential — My initial projects often lead to ongoing retainers. I position solutions for long-term partnership, not one-off fixes. ✓ Technical depth — I work fluently across multiple frameworks in Python, JavaScript/TypeScript, SQL, no-SQL, no-code platforms (n8n, Make.com), and cloud services. I pick the right tool for your problem, not the one I know best. ✓ Proven track record — Developed custom solutions for clients across multiple industries. Currently operating a software development agency, managing complex technical deliverables. I'm best suited for: Businesses tired of manual data entry and spreadsheet chaos Teams needing reliable automation that actually works 24/7 Projects requiring API integration or multi-system data synchronization Organizations ready to invest in solutions that save 10+ hours per week Companies looking to leverage AI to unlock insights from their data Not the right fit if: You need one-off tasks (I focus on scalable, repeatable systems) You want the absolute cheapest option (I prioritize quality and reliability) You need very specialized expertise outside my stack (I'll be honest about this upfront) Let's discuss your challenge. I'll assess what you need and be straightforward about whether I'm the right fit or if you'd be better served elsewhere.

I help growing businesses turn scattered tools and manual workflows into structured, automated systems that scale with their operations. My work focuses on designing reliable data infrastructures and workflow automations that eliminate repetitive tasks, improve data accuracy, and give teams clear visibility into their operations. I specialize in building systems using Airtable, Make (Integromat), Zapier, APIs, and modern no-code/low-code tools, combined with traditional database architecture principles. The result is a system that is not only functional today but maintainable and scalable for long-term growth. Whether you need to restructure an existing database, automate complex workflows, or build a complete operational system from scratch, I design solutions that are clean, reliable, and production-ready. ⸻ What I Do I design end-to-end operational systems that connect data, processes, and people. Database Architecture & Optimization Designing structured relational databases using Airtable, PostgreSQL, and SQL/NoSQL systems with a focus on performance, scalability, and maintainability. I specialize in cleaning up messy databases and building clear relational data models. Workflow Automation & Integrations Building powerful automations using Make (Integromat), Zapier, Google Apps Script, and APIs to connect your tools and automate processes. This reduces manual work, prevents human errors, and ensures data flows smoothly between platforms. Internal Tools & Client Portals Creating internal dashboards, admin tools, and client portals using Softr + Airtable, enabling teams and clients to interact with data through simple, secure interfaces. Data Collection & System Inputs Implementing structured input systems using Typeform, Jotform, Tally, and custom forms that feed validated and organized data directly into centralized databases. AI-Enabled Automation Integrating AI-powered workflows (including ChatGPT and AI APIs) to automate data processing, generate insights, and support smarter decision-making across your systems. ⸻ How I Work Every project begins by understanding your business logic, workflows, and data dependencies. From there I design systems that are: • Simple for teams to use • Reliable in real-world operations • Automated wherever possible • Flexible enough to grow with your business My goal is not just to deliver a setup, but to build well-architected systems that quietly run in the background, saving time, reducing operational risk, and creating long-term efficiency. ⸻ If you’re looking for someone who can design databases, automate workflows, integrate tools, and future-proof your systems, I’d be happy to collaborate.

4+ years owning the full BI vertical, from raw source extraction to agentic AI layer. I don't cover parts of the stack. I run the entire system: ingestion, modeling, warehousing, visualization, deployment, and AI implementation. Zero handoff gaps. Zero "that's not my scope." 𝐖𝐡𝐚𝐭 𝐓𝐡𝐢𝐬 𝐌𝐞𝐚𝐧𝐬 𝐅𝐨𝐫 𝐘𝐨𝐮 🔹 Extraction & Pipelines: APIs, web scraping, file ingestion, Stripe, Shopify, Zoho, GA4, Ads platforms, pulled, validated, and landed in your warehouse. No manual CSV drops. No broken syncs. 🔹 Modeling & Architecture: Star schemas, SCDs, fact and dimension tables, marts, catalogs, grain reconciliation. A semantic layer built for Day 2, not just Day 1. 🔹 Visualization & Design: Power BI, Looker Studio, Zoho Analytics, Superset, DOMO, Metabase. UI/UX-informed dashboards with intentional hierarchy, color theory, branding alignment, and storytelling that makes the insight obvious, not buried. 🔹 Deployment & Governance: Row-level security, role management, access control, documentation. Production-grade, not prototype-grade. 🔹 AI Layer: Conversational analytics, self-serve ad-hoc queries, proactive strategic briefings, alert systems against goals and benchmarks, pipeline and validation (Red Cell) agents. AI as infrastructure, not as demo. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗧𝗼𝗼𝗹𝗯𝗼𝘅 🔹 BI & Viz: Power BI, Looker Studio, Zoho Analytics, Metabase, Superset, Domo 🔹 Modeling & Query: SQL, DAX, Power Query (M), Python, dbt, Excel 🔹 Warehousing: BigQuery, Snowflake, Cloud SQL, Cloud Storage, SQL Server, MySQL, Postgress, SQL Server, Amazon Redshift, Amazon S3 🔹 Pipelines & ETL: Make, n8n, Fivetran, Apps Script, Cloud Run, Python, Supermetrics, Windsor AI, Coupler AI, Airbyte, JS 🔹 Cloud & Governance: Google Cloud Platform, AWS, Azure, Terraform, Git 🔹 AI: OpenAI & Claude APIs, agent orchestration, anomaly detection, predictive models, automated briefings & alerts 𝗧𝗵𝗲 𝗔𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲 When you hire a data analyst, you get dashboards. When you hire a data engineer, you get pipelines. When you hire me, you get the system, no gaps between extraction and insight, no friction between layers, no risk of one contractor's output breaking another's input. 🔹 One point of accountability across every layer of the stack 🔹 Decisions in plain language for technical and non-technical stakeholders 🔹 Architecture built for growth, not just for the deliverable 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐃𝐞𝐜𝐢𝐬𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦 Your business generates data. I make sure every byte of it moves, transforms, lands, and speaks, without friction, without gaps, and without you needing to manage the in-between. Not a dashboard. Not a pipeline. A decision system.