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Sai Kalyan Nadella - Data Analyst

[email protected]

Location: Remote, Remote, USA

Relocation: anywhere in USA

Visa: H1B

Sai Kalyan Nadella [email protected] | 667 335 3341 SUMMARY Data and BI Analyst with 5+ years designing ETL pipelines, dimensional data models, and automated reporting on AWS (Redshift, S3, EC2), Oracle, and cloud platforms (Snowflake, BigQuery). Processed 100M+ row multi-source datasets; built statistical models and Tableau dashboards that improved forecast accuracy by 15% and cut data quality issues by 50% across finance, operations, and executive reporting cycles. EXPERIENCE BI and Analytics Engineer | Community Dreams Foundation | Baltimore, MD | Feb 2025 - Jan 2026 Nonprofit tech organization; built BI data layer and ETL infrastructure on Snowflake and AWS supporting a cross-functional ops team. Engineered ETL pipelines (Airflow, dbt, Python) loading multi-source CRM and ops data into Snowflake; processed 100M+ rows across 5+ models, eliminating 15+ hours/week of manual work. Influenced 3 department heads to adopt a unified KPI framework despite conflicting definitions; reduced data issues by 50% through structured alignment sessions and dbt validation in Confluence. Presented 10+ Tableau dashboards and performance readouts to C-suite and department heads; translated complex ETL and data quality findings into executive narratives that improved decision-making speed by 20%. Deployed a natural language query interface on Snowflake using LLM tooling (GPT-4, Claude); enabled non-technical stakeholders to self-serve data exploration, cutting ad hoc reporting requests by 40%. Gathered requirements across marketing, finance, and ops; documented data contracts in Confluence that eliminated rework and delivered all 3 analytics initiatives on time. Product Analyst Intern | Public Consulting Group (PCG) | Baltimore, MD | Jun 2024 - Dec 2024 Management and technology consulting firm; delivered BI infrastructure and automated reporting on SQL Server and Databricks for 100+ business users. Partnered across product, engineering, finance, and RevOps to gather requirements and build Tableau/Splunk KPI dashboards; reduced rework cycles by 30% through cross-functional alignment. Diagnosed performance bottlenecks in SQL Server; rewrote complex queries (CTEs, window functions, temp tables) and tuned indexes, improving data extraction speed by 25% for 100+ business users. Diagnosed low adoption across 100+ users; consolidated reports and optimized Tableau Server (permissions, RLS, extracts) through stakeholder education, growing active users by 40% and saving 10+ hours/week. Managed 3 concurrent workstreams under shifting requirements; reprioritized delivery to surface critical defect trends ahead of schedule, reducing post-release defects by 70% and first-time-right delivery by 35%. Business Intelligence Analyst | Tiger Analytics | Hyderabad, India | Mar 2022 - Jul 2023 Analytics and AI consultancy serving Fortune 500 clients; designed BI warehouse solutions and ETL pipelines for finance, supply chain, and business planning workstreams. Built ETL pipelines consolidating 5 ERP sources into Snowflake data marts; cut manual budget reconciliation by 20+ hours/month for enterprise finance teams. Delivered results on $500M+ quarterly planning cycles by building time-series and regression forecasting models (statsmodels, scikit-learn) on Snowflake and AWS Redshift; improved forecast accuracy by 15% (RMSE). Led 4 junior BI analysts; owned work assignments, weekly 1:1s, and delivery accountability, increasing team dashboard output by 30% with zero critical production defects. Implemented a data quality framework and KPI dictionary (null, uniqueness, referential integrity, control totals) using dbt tests and SQL scripts; reduced reporting defects by 40%. Led requirements workshops with Finance, Supply Chain, and Marketing; defined scope, timelines, and tradeoffs for 3 initiatives, cutting sprint rework by 25% and ensuring on-time delivery. Data Operations Analyst | IQVIA | Bangalore, India | Dec 2019 - Feb 2022 Global clinical research organization (CRO); built data warehousing and automated reporting infrastructure on Oracle and SQL Server across 30+ concurrent global clinical studies. Constructed Oracle and SQL Server data marts and ETL workflows processing multi-dimensional clinical datasets across 30+ global studies; built Tableau dashboards tracking SLA attainment, backlog, and daily throughput. Performed statistical analysis using SAS and SQL on multi-source study ops datasets to identify compliance gaps; implemented control totals and anomaly thresholds achieving 100% accuracy in regulatory reporting. Automated reporting pipelines using Oracle views, SQL Server (CTEs, window functions), and Excel (Power Query, VBA macros); saved 20+ hours per week and cut client submission errors by 65%. Owned documentation for 30+ global studies - data dictionaries, SOPs, and requirements specs in Confluence; standardized templates cut analyst onboarding time by 30% with zero regulatory audit gaps. SKILLS Data Warehousing and Modeling: Star schema, dimensional modeling, data marts; Snowflake, AWS Redshift, BigQuery, SQL Server, Databricks ETL and Pipeline Engineering: dbt, Airflow, Fivetran, Azure Data Factory, Python (pandas, SQLAlchemy), Excel VBA/Power Query, Git/GitHub AWS: Redshift, S3, EC2, RDS, DynamoDB, Lambda, SQS, CloudWatch, IAM; multi-account environments Data Visualization: Tableau (LOD, performance tuning, Server admin, RLS, extracts), Power BI (DAX, Power Query), Amazon QuickSight, Looker, Splunk Statistical Analysis and Methods: Time-series forecasting (ARIMA, regression), variance analysis, cohort analysis, segmentation, A/B testing, anomaly detection; SAS, Python (scikit-learn, statsmodels) SQL and Querying: Joins, CTEs, window functions, stored procedures, query optimization; SQL Server, Snowflake, BigQuery, Redshift Data Governance: KPI dictionaries, validation SOPs (control totals, null checks, referential integrity), Monte Carlo EDUCATION M.S. Engineering Management | Johns Hopkins University | Baltimore, MD | Dec 2024 Bachelor of Technology | Manipal Institute of Technology | Manipal, India | May 2019 Keywords: cprogramm artificial intelligence business intelligence sthree active directory Maryland Keywords: cprogramm artificial intelligence business intelligence sthree active directory Maryland Keywords: cprogramm artificial intelligence business intelligence sthree active directory Maryland