Joanna A.
Analytics & Data Engineering | Tableau Viz Specialist
Expert-Vetted (Top 1%) Tableau Specialist, Analytics Consultant, Data Engineer| 100% Job Success I specialise in the full pipeline: cleaning and modelling data (SQL, Snowflake, Redshift), defining KPIs, and building Tableau dashboards that people actually use. I’ve delivered nearly 4,000 hours of this work on Upwork. I'm a Tableau Certified Consultant & Certified Data Analyst with a lot of data engineering experience in BI across financial services, travel, healthcare, music, nonprofits and the public sector. Most of my recent work combines three things: - Tableau: Dashboards, Server/Cloud architecture, performance tuning, Tableau Prep - Data Engineering: warehouse design on Snowflake, BigQuery and Redshift; medallion (bronze/silver/gold) layering; ETL/ELT pipelines in SQL and Python; record linkage and fuzzy matching across messy source systems - AI integration: Connecting LLMs to your data via Tableau and Snowflake MCP servers, so non-technical users can ask questions in plain language. Setting up Tableau Next and Tableau Semantics How I can help: - End-to-end pipeline and warehouse build (ingestion → modelled layers → Tableau) - Interactive Tableau dashboards and executive reporting - Performance tuning for slow dashboards and data sources - Cleaning, modelling and structuring your data assets - KPI and metric definition workshops - AI-assisted data exploration and integration - 1:1 Tableau development sessions and mentoring Stack: Tableau (Desktop, Server, Cloud, Prep) · SQL on Snowflake, BigQuery, Redshift, Oracle, SQL Server, Postgres · Python · AWS and GCP
Earnings and projects
An estimate from an earlier read
Read daily since Nov 4, under 30 days
Billed in all: $444,550$445k
$11k in the last 6 months
Across 6 contracts
Across 50 contracts
Earnings, last 30 days
Tracked from Nov 4, 2026. Dotted: longer than usual between two readings.
Skill rankings: #1 in 1 skill of 20
Rarest: top 0.23% in Data Cleaning, of 3,952. Ranked by MRR among everyone on Upwork with the skill.
- AI Product Design133 freelancers · 🇬🇧 #1Top 0.75%🇬🇧#1 of 3
- AI Pipelines25 freelancers · 🇬🇧 #1Top 8%🇬🇧#1 of 3
- Database Development567 freelancers · 🇬🇧 #1Top 0.53%🇬🇧#1 of 12
- #4KPI Metric Development775 freelancers · 🇬🇧 #1Top 0.52%🇬🇧#1 of 20
- #6Visualization1,531 freelancers · 🇬🇧 #1Top 0.39%🇬🇧#1 of 54
- #7AI Data Analytics535 freelancers · 🇬🇧 #1Top 1%🇬🇧#1 of 16
- #8Amazon Redshift215 freelancers · 🇬🇧 #3Top 4%🇬🇧#3 of 7
- #9Data Cleaning3,952 freelancers · 🇬🇧 #1Top 0.23%🇬🇧#1 of 72