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Joanna A.
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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

🇬🇧London, United Kingdom$75/hr100% JSS5.00 (19)Since Oct 2023

Earnings and projects

MRR (estimate)
≈$9.2k

An estimate from an earlier read

World#1,584 / 412k
🇬🇧Country#48 / 10.7k
Revenue, last 30 days
—

Read daily since Nov 4, under 30 days

Total earnings
$419k

Billed in all: $445k

World#4,050 / 412k
🇬🇧Country#83 / 10.7k
Per project
$11k

$11k in the last 6 months

World#14,522 / 412k
🇬🇧Country#220 / 10.7k
Projects, last 6 months
5

Across 6 contracts

17% fixed83% hourly
World#41,746 / 412k
🇬🇧Country#929 / 10.7k
Projects in all
39

Across 50 contracts

48% fixed52% hourly
World#77,390 / 412k
🇬🇧Country#2,020 / 10.7k

Earnings, last 30 days

$445kNothing earned since Nov 4Billed in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$435k$440k$445k$450kNov 4Nov 6Nov 7

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.

  1. 1AI Product Design133 freelancers · 🇬🇧 #1Top 0.75%
  2. 2AI Pipelines25 freelancers · 🇬🇧 #1Top 8%
  3. 3Database Development567 freelancers · 🇬🇧 #1Top 0.53%
  4. #4KPI Metric Development775 freelancers · 🇬🇧 #1Top 0.52%
  5. #6Visualization1,531 freelancers · 🇬🇧 #1Top 0.39%
  6. #7AI Data Analytics535 freelancers · 🇬🇧 #1Top 1%
  7. #8Amazon Redshift215 freelancers · 🇬🇧 #3Top 4%
  8. #9Data Cleaning3,952 freelancers · 🇬🇧 #1Top 0.23%