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Serrafine Silviya J

Serrafine Silviya J

Senior Data Analyst

Banglore, Karnataka, India $276/hr
90
Profile Score

About

Results-driven Senior Data Analyst with 5 years of experience in Power BI, SQL, Python, Snowflake, Snaplogic and QuickBase. Proven ability to design and deliver scalable data models, automate ETL pipelines, and build interactive dashboards that empower business decisions. Experienced in stakeholder collaboration, data governance, and performance optimization for enterprise-scale analytics solutions.

Skills & Expertise (23)

Data Analysis Expert
9.1/10
5
Years Exp
Data Visualization Advanced
8.7/10
5
Years Exp
ETL Advanced
8.5/10
5
Years Exp
R C Python Snaplogic Azure Synapse DAX Power Query Snowflake SAP HANA SQL Server Excel Tableau QuickBase Power BI Dashboard Performance Optimization Data Cleaning ML Fundamentals Testing Data Migration Data Modeling

Work Experience

Data Analyst

Cognizant

Jul 2021 - Feb 2025

Gathered business requirements and translated them into data-driven reporting solutions. Designed Snowflake data models and ETL pipelines using SnapLogic and DataStage. Developed automated Power BI dashboards for logistics, order analytics, and warehouse management. Migrated Tableau reports to Power BI, ensuring seamless integration and enhanced visual performance. Led data testing and validation to ensure report accuracy and consistency.

Python & AWS Intern

Cognizant

Jan 2021 - Jun 2021

Developed a simple chatbot using Python, enabling real-time user interaction and basic conversational capabilities. Designed and implemented a To-Do List web app using Python with Flask and MongoDB for back-end storage. Built a soil moisture monitoring system using AWS IoT Core.

Senior Data Analyst

Capgemini

Feb 2025 - Present

Collaborated with global stakeholders to translate business needs into actionable analytics solutions. Collected, cleaned, and prepared data from SAP HANA, Synapse, SQL Server, and Denodo for analysis. Designed and automated ETL workflows using Python to load data into QuickBase from SQL Server/HANA. Built and deployed interactive dashboards in Power BI and QuickBase, enabling real-time business insights. Managed full lifecycle: testing, UAT coordination, QA/Prod deployment, and stakeholder handover. Reviewed team dashboards for data accuracy and standards compliance. Administered user access for the global IEWR QuickBase app; resolved access issues and implemented change requests. Acted as panelist for Data Analyst and Data Storytelling interviews.

Education

Bachelor’s degree in Electrical and Electronics Engineering - Karpagam College of Engineering

2017 - 2021 · India

Higher Secondary - Golden Gates Matric Higher Secondary School

2016 - 2017 · India

SSLC - St. Joseph girls Higher secondary School

2014 - 2015 · India

Certifications

Analytics – Power BI

Capgemini – OCEAN Capability Baseline Initiative · 2025

Snowflake Decoded - Fundamentals and Hands-on Training

Udemy · 2022

Learn Advanced Python Programming E-Box

E-Box (An Amphisoft Product) · 2020

Qlik sense Business Analyst Qualification

Qlik · 2020

Programming, Data Structure and Algorithm using Python

NPTEL · 2019

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Profile Score Breakdown

📷 Photo 10/10
📄 Resume 10/10
💼 Job Title 10/10
✍️ Bio 10/10
🛠️ Skills 20/20
🎓 Education 10/10
⏱️ Experience 5/15
💰 Rate 5/5
🏆 Certs 5/5
Verified 5/5
Total Score 90/100

Profile Overview

Member sinceJul 2024

Availability Details

Visa Status

Citizen

Relocation

Open to Relocation

Skills (23)

Data Analysis Data Visualization ETL R C Python Snaplogic Azure Synapse DAX Power Query +13 more