Data operation and annotation analyst

Krishaben Patel

Cleveland, OH

**************@*****.*** 216-***-****

PROFESSIONAL SUMMARY

Results-driven Data Analyst with a master's degree in computer science and hands-on experience in SQL,

T-SQL, data analysis, ETL processes, and reporting. Experienced in writing complex SQL queries,

performing data validation, data quality checks, and dataset analysis to support business intelligence

and analytics initiatives. Proficient in Power BI, Excel, Python, and relational databases with exposure to

AWS S3 and Amazon Redshift. Strong understanding of data warehousing concepts, SDLC lifecycle, and

data governance practices. Adept at transforming raw data into actionable insights, building KPI

dashboards, and supporting data-driven decision-making.

CORE SKILLS

Data Analysis & Querying: SQL, T-SQL, Complex Queries, Joins, Subqueries, Views, Stored

Procedures, Data Profiling, Query Optimization

Data Processing & ETL: ETL Processes, Data Extraction, Data Transformation, Data Loading, SSIS

(Basic), Data Cleansing, Data Integration

Data Warehousing: Star Schema, Fact Tables, Dimension Tables, Data Modeling, Relational

Databases

Business Intelligence & Visualization: Power BI, Dashboard Development, KPI Metrics, Data

Visualization, Tableau (Exposure), Reporting

Programming & Tools: Python, Microsoft Excel (Pivot Tables, VLOOKUP, Data Analysis), JIRA

Cloud Technologies: AWS S3, Amazon Redshift

Development Practices: SDLC, Data Documentation, Unit Testing, UAT, Quality Assurance, Data

Governance

PROFESSIONAL EXPERIENCE

Data Operations & Annotation Analyst

Source Mantra Inc United States

Jan 2026 Present

Perform data annotation, data validation, and quality assurance for AI and machine learning

datasets to ensure high-quality training data.

Review structured, image, video, and audio datasets to verify data accuracy, completeness, and

consistency.

Identify data anomalies, inconsistencies, and missing values and apply structured quality checks to

improve dataset reliability.

Support data workflow operations and data processing pipelines by maintaining quality and

productivity metrics.

Collaborate with data analysts, data engineers, and cross-functional teams to resolve data quality

and dataset issues.

Software Programmer Analyst

Maa Service Group Inc United States

Feb 2025 Jan 2026

Developed and executed SQL and T-SQL queries to extract, analyze, and manipulate data for

reporting and analytics purposes.

Performed data validation, data profiling, and troubleshooting to ensure data accuracy and integrity

across systems.

Assisted in ETL processes, including data extraction, transformation, and loading into relational

databases.

Documented data workflows, transformation logic, and business rules to support analytics and

reporting teams.

Worked with cross-functional teams to improve reporting efficiency, data quality, and analytics

performance.

Graduate Teaching Assistant

Cleveland State University Cleveland, OH

Aug 2024 Dec 2024

Assisted faculty in teaching SQL, Python, and Data Analytics concepts to undergraduate and

graduate students.

Reviewed assignments and projects to validate database queries, data analysis logic, and

programming solutions.

Provided troubleshooting support for SQL queries, database operations, and analytics exercises.

Guided students in applying data analysis methodologies and database best practices.

EDUCATION

Master of Science Computer Science

Cleveland State University, Cleveland, OH

May 2023 Dec 2024

GPA: 3.69 / 4.0

Bachelor of Science Computer Science

Gujarat Technological University

Aug 2018 May 2022

GPA: 3.7 / 4.0

ADDITIONAL INFORMATION

Tools & Platforms: SQL Server, Excel, Power BI, Python, AWS S3, Amazon Redshift

Methodologies: SDLC, Data Validation, Data Quality Management, Reporting & Analytics

Work Authorization: Authorized to work in the United States

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