HALEN ANQUANDAH
Washington,DC
Summary
Results-driven BI and data visualization leader with 10+ years of experience architecting and managing enterprise-scale analytics platforms. Proven expertise in owning and evolving Tableau Cloud environments, optimizing performance, and driving governance to enable trusted, actionable insights across global organizations. Skilled in designing resilient data connectivity and secure hybrid solutions on AWS and GCP, with hands-on experience in Tableau Bridge, REST API automation, and large-scale dashboard/report development. Adept at partnering with engineering, analytics, and product teams to align data models with business needs, ensuring scalability and usability of BI solutions. Recognized for technical depth, pragmatic problem-solving, and a collaborative mindset, with a strong track record of making complex data simple and empowering confident, data-driven decision-making.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Senior BI Engineer - Tableau
Wells Fargo
01.2020 - Current
- Own and evolve Tableau Cloud platform, optimizing connectivity with AWS and GCP data warehouses and lakes.
- Designed and implemented high‑performing dashboards for global stakeholders, reducing query response times by 40%.
- Automated administrative workflows using Tableau REST API and Python, cutting manual effort by 25+ hours per month.
- Led migration from on‑premises Tableau Server to Tableau Cloud, consolidating sites and strengthening governance.
- Partnered with data engineering teams to align warehouse models with reporting needs, ensuring trusted data sources.
- Established BI design standards emphasizing usability, accessibility, and scalability.
Tableau Administrator
Costco
01.2015 - 01.2020
- Designed and managed a 6‑node Tableau Server cluster with High Availability, including nodes dedicated to Tableau Prep/flows.
- Implemented blue‑green upgrade strategy with replicated DR environment, reducing downtime during upgrades by 80%.
- Deployed external Tableau Server for public‑facing dashboards, automating secure content publishing via Python scripts.
- Administered multi‑tenant environment of 20+ sites, supporting hundreds of users; conducted monthly governance training.
- Partnered with infrastructure teams to configure load balancing, failover, and optimized storage for extracts.
- Enhanced monitoring processes, troubleshooting extract, subscription, and flow errors while optimizing backgrounder workloads.
Education
Bachelor of Science, BASc - Computer and Information Sciences
Kumasi Technical University
Ghana01.2013
Skills
- BI Platforms: Tableau Server, Tableau Cloud, Tableau Desktop, Tableau Prep
- Data Integration: SQL, Snowflake, Databricks
- Cloud Platforms: AWS, Azure
- High Availability (HA) & Disaster Recovery
- Automation: Python Scripting for Content Migration
- Performance Tuning & Optimization
- Governance: Multi-tenant (20 sites), Site Admin Training
- Security & Compliance: LDAP, SSL, Certificates
- Collaboration Tools: JIRA, Confluence, ServiceNow
Certification
- Tableau Certified Server Associate
- Google Certified Data Analyst
Timeline
Senior BI Engineer - Tableau
Wells Fargo
01.2020 - Current
Tableau Administrator
Costco
01.2015 - 01.2020
Bachelor of Science, BASc - Computer and Information Sciences
Kumasi Technical University