Hire the Best Tableau Developers in California

Want to work with a Top-Rated Tableau & Data Analytics Expert? I build modern, visually compelling, and interactive dashboards, helping businesses unlock the power of their data to drive smarter decision-making. With 8+ years of experience in data analytics and data visualization, I focus on delivering clean, insightful, and interactive dashboards that help businesses grow. I’m well-versed across industries—whether it’s marketing data, sales reports, SEO dashboards, predictive modeling, or complex SQL and ETL workflows, I can build the best solution for you. What I do Best: • Business Intelligence & Data Visualization – Tableau, Tableau Prep, Power BI, Looker Studio, Zendesk Explore • Data Analysis – Python, SQL • Machine Learning & AI – Predictive modeling, forecasting, fuzzy matching algorithms, large language models (LLMs), retrieval-augmented generation (RAG) • ETL & Data Pipelines – Optimizing SQL queries, automating workflows • Excel Automation / VBA Macros • Cloud Data Solutions – Azure, AWS, Snowflake, BigQuery How I Work I start by understanding your goals, data sources, and key metrics. From there, I design and develop a tailored solution—whether it’s a dashboard, report, data pipeline, or machine learning model. I work collaboratively, incorporating your feedback and adapting to changes along the way. My focus is always on delivering clear, actionable, and reliable results that support smarter, data-driven decision-making Why Choose Me? • Proven Track Record – Top-rated on Upwork with 900+ hours worked, perfect 5-star feedback, and 100% job success. • Excellent Communication & Transparency – I’m always clear, responsive, and provide frequent updates on project progress. • Data-Driven Approach – I help you make informed decisions with precise, actionable insights. • Fast & Reliable – I respect deadlines and deliver high-quality results on time. I ensure that all key milestones are met without delays. • Industry Expertise – I’ve built dashboards for businesses in marketing, finance, e-commerce, and healthcare, helping them track KPIs, automate reporting, and extract real-time insights. What Clients Say About My Work: ⭐️⭐️⭐️⭐️⭐️"Kofi did a great job on ETL and ML tasks using Amazon Web Services (AWS). We'd be happy to work with him again." ⭐️⭐️⭐️⭐️⭐️"Kofi was great at communicating and meeting deadlines. He quickly adapted to a new data connector and delivered our dashboard efficiently. I appreciated his thoughtfulness and recommendations for improving our dashboard visualizations." ⭐️⭐️⭐️⭐️⭐️"Kofi was great to work with and very knowledgeable about Tableau. I will definitely work with him again if I can." ⭐️⭐️⭐️⭐️⭐️"It was an excellent experience working with Kofi. He consistently produces high-quality visualizations and delivers on time. He is committed, responsive to feedback, and flexible when project requirements change. I look forward to working with him on future projects!" Need Help on Your Next Project? Let’s schedule a call to discuss your project objectives and how I can help you unlock insights, automate reporting, and build visually appealing, actionable dashboards.

I am available for new projects and students! Please get in touch by sending me a message or a contract proposal. I am one of the top Tableau developers and data tutors here on Upwork. However, I'm not only a technical professional. I help with optimizing advertising strategies, communicating with end clients, offering recommendations, and making formal presentations. Please send an invitation or message and I will always respond by the end of the business day, but more likely within one hour. I have worked with clients in: Digital Advertising, ECommerce, Wealth Management, Aerospace Manufacturing and Software Development. In addition to Tableau, I have expertise working with: SQL, Google Ads, Google Analytics, PowerQuery, BigQuery, Tableau Data Prep, Epicor, Salesforce, Fishbowl, and several other data tools. I am formally educated from UC Davis with a BS in Managerial Economics, and data science coursework with UCLA Extension. I am reliable, responsive, and have a flexible schedule. I look forward to working with you!

I'm a GIS analyst and cartographer with 8+ years of experience translating complex environmental, social, and operational data into maps and dashboards that actually get used. I've built interactive Tableau and ArcGIS Online tools for nonprofit disaster response, developed climate visualizations for international NGOs, and mentored students at Columbia University's School of Professional Studies and Climate School. My work has been featured at the Data Visualization Society's Outlier Conference. I work best with organizations where the data matters - environmental nonprofits, sustainability initiatives, climate advocacy groups, public agencies, and mission-driven teams. Whether you need a polished static map for a report, an interactive web map for stakeholders, or a Tableau dashboard that tells a story, I bring both the technical depth and the communication skills to get you there. My approach is equity-focused, collaborative, and delivery-oriented. I'll ask the right questions upfront so the final product fits your audience, not just your dataset.

Your Data, Transformed Into Dashboards That Drive Better Decisions Dashboards built with Looker Studio, Tableau and Power BI turn complex data into clear, actionable visuals—helping teams track performance, identify trends, and make confident decisions every day. What Can Be Delivered SQL-Driven Analytics: Reliable data models paired with clean visuals and intuitive filtering Looker Studio Reports: Google Ads, Analytics, and Sheets unified into a single, clear view Tableau Visualizations: Data storytelling focused on key performance indicators and outcomes Data Preparation: Cleaning, structuring, and organizing datasets for accurate reporting Automated Reporting: Seamless refreshes using blended and connected data sources Tools & Skills BI Tools: Looker Studio | Tableau | Power BI Data Sources: PostgreSQL | MySQL | BigQuery | Google Sheets | Excel Expertise: SQL | Data Visualization | Dashboard Design | Reporting Automation Why It Works Every dashboard is designed with clarity and decision-making as the priority—fast to load, easy to navigate, and built to deliver long-term value. Projects are executed with precision and attention to detail, ensuring each visualization communicates the right insight at the right time. Let’s Build Something That Informs and Inspires Dashboards built with Looker Studio, Tableau and Power BI that transform raw data into meaningful insights—ready to support real business results.

I’m a data visualization expert with a Master of Science in Business Analytics and over 10 years of experience transforming complex datasets into actionable insights. I specialize in creating automated, interactive Tableau, Power BI, and Looker dashboards that empower leadership to make data-driven decisions with confidence. My expertise lies in connecting Tableau, Power BI, and Looker to SQL databases, Excel, and APIs, streamlining reporting processes, and delivering advanced analytics through DAX and calculated fields. What I Bring to the Table: *Interactive Dashboards: Designing sleek, intuitive dashboards to track KPIs, uncover trends, and tell compelling data stories. *Advanced Analytics: Leveraging Tableau's calculated fields and Power BI's DAX to surface actionable insights and drive strategic outcomes. *Automation at Scale: Streamlining workflows with ETL processes to ensure real-time, error-free reporting. *Seamless Integration: Connecting disparate data sources—including SQL, Excel, and APIs—to provide a unified view of your business. Technical Proficiency *Visualization Tools: Tableau, Microsoft Power BI, Excel *Data Management and Analysis: SQL, Python, R, SPSS Modeler, Excel *ETL & Automation: Expertise in transforming raw data into polished, automated reports Selected Achievements • Schwab Bank Recovery Plan: Automated data workflows and modified liquidity and capital predictive models in Python and Excel to create regulatory and executive-ready visualizations, earning a Key Contributor Award. Presented findings directly to Schwab Bank’s CEO with specific praise from the founder Charles Schwab. • Olympics Resource Allocation: Built advanced Tableau dashboards and statistical models in R and Python to optimize resource allocation for Canoe/Kayaking at the 2028 Olympics, delivering insights to senior leadership. • Supply Chain Negotiations: Designed automated Tableau dashboards and performed advanced analytics with SQL and Python, supporting multimillion-dollar contract negotiations. Insights were presented to executives, driving cost savings and efficiency. • Leadership Analytics: Delivered interactive dashboards and automated workflows to evaluate performance metrics of machine learning models for roof size estimation optimizing asset allocation strategies for solar lead generation software company. Whether you need custom dashboards, enhanced reporting tools, or advanced analytics to unlock hidden opportunities, I’m here to deliver high-impact solutions tailored to your business. Let’s create something amazing!

20x Certified Salesforce Developer | HubSpot CRM & Tableau Expert | AI & Automation Consultant Professional Overview With 14+ years of experience in CRM consulting and digital transformation, I help businesses streamline sales, marketing, customer service, and analytics using Salesforce, HubSpot, Tableau, and AI-powered automation. I am a 20x Salesforce Certified Professional with extensive experience delivering end-to-end CRM implementations, integrations, custom development, reporting, and business process automation for startups, SMBs, and enterprise organizations. I have successfully worked on 500+ CRM and digital transformation projects across industries including Financial Services, Healthcare, SaaS, Manufacturing, Real Estate, Nonprofit, Education, and Technology. Core Expertise Salesforce ✔ Sales Cloud Implementation & Customization ✔ Service Cloud & Experience Cloud ✔ Marketing Cloud & Account Engagement (Pardot) ✔ Salesforce CPQ & Revenue Operations ✔ Apex, Visualforce, Lightning Web Components (LWC) ✔ Flow Automation & Process Optimization ✔ Data Migration & Integration Projects ✔ Salesforce AI & Agentforce Solutions ✔ AppExchange Product Development HubSpot ✔ HubSpot CRM Setup & Customization ✔ Marketing Automation Workflows ✔ Sales Hub & Service Hub Implementation ✔ Lead Nurturing & Pipeline Management ✔ Reporting & Dashboard Development ✔ HubSpot-Salesforce Integration Tableau & Analytics ✔ Executive Dashboards ✔ KPI & Performance Reporting ✔ Tableau Development & Optimization ✔ Data Visualization & Storytelling ✔ Business Intelligence Solutions ✔ CRM Analytics & Predictive Insights Integrations & Automation ✔ OpenAI / AI Chatbots ✔ REST & SOAP APIs ✔ Twilio, WhatsApp & SMS Integrations ✔ Stripe, QuickBooks & Payment Platforms ✔ DocuSign & eSignature Solutions ✔ Custom Middleware & Automation Why Work With Me? ✅ 20 Salesforce Certifications ✅ 14+ Years CRM Consulting Experience ✅ 500+ Successful Implementations ✅ Strong Business & Technical Expertise ✅ Fast Communication & Transparent Delivery ✅ Long-Term Client Relationships ✅ Focus on ROI and Business Outcomes Industries Served Financial Services Healthcare & Life Sciences SaaS & Technology Manufacturing Real Estate Education Nonprofit Organizations Professional Services Keywords Salesforce Developer, Salesforce Consultant, Salesforce Administrator, Apex Developer, LWC Developer, Salesforce Integration, HubSpot Expert, HubSpot Consultant, Marketing Automation, Tableau Developer, Tableau Consultant, CRM Implementation, AI Automation, Business Intelligence, Dashboard Development, Data Migration, API Integration, Salesforce CPQ, Service Cloud, Sales Cloud, Marketing Cloud.