Dharani Sri | Data Analyst

Hi, I'm Dharani Sri.

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As a Data Analyst, I am passionate about transforming raw data into actionable insights using Python, SQL, Excel, and Tableau to empower businesses with data-driven decision-making.

About

Electronics and Communication Engineering graduate with knowledge of Power BI, Tableau, Excel, and Python visualization libraries. I am interested in building a career in Data Analytics by transforming raw data into meaningful insights and creating interactive dashboards. I am eager to support data driven decision making while continuously improving my technical and analytical skills.

Education

Dr Mahalingam college of Engineering and Technology

Pollachi , Coimbatore

Degree: EC(Advanced communication Technology)
CGPA: 8.667

Government higher secondary school

vellottamparappu,Erode

SSLC | Pass

HSC | 85.33 %

Experience

LST

Data Analyst Intern

Developed interactive dashboards and visual reports in Power BI and Tableau to help business teams monitor key performance indicators (KPIs) and user engagement metrics.
Used DAX functions in Power BI to build calculated columns and measures for simple business calculations like growth rates and performance scores.
Created 2 custom visualizations in Power BI and 2 in Tableau using Python scripts and R scripts for data analysis and display.
Automated basic data cleaning and preprocessing with Python (Pandas) and Excel formulas, boosting accuracy for reports.Practiced Python basics for data handling; collaborated on turning data needs into clear visuals for better decisions.
Tools: Power BI, Tableau, Python (Matplot,Seaborn,Numpy), Excel

June 17th , 2025 to July 5th , 2025 | Ganthipuram , Coimbatore

CODTECH IT SOLUTIONS

Power BI Intern

Built a simple Sales Performance Dashboard in Power BI to show total revenue, sales trends, product performance, and region comparisons.
Created a basic Customer Satisfaction Dashboard in Power BI to track feedback, Net Promoter Score (NPS), and customer sentiment over time.
Used DAX functions to make custom measures like monthly sales growth, customer retention rates, and average satisfaction scores.
Cleaned and transformed data with Power Query from Excel sources to keep everything accurate and consistent.Shared clear reports with team leads using Power BI, Excel, DAX, and Power Query for better business decisions.
Tools: Power BI, DAX, Excel, Power Query

Oct 15th, 2024 to Nov 30th , 2024 | Hyderabad, India

Projects

                
Audio Amplifier
                   An audio amplifier increases the power of an audio signal, making it strong enough to drive speakers or headphones. 
                
                Accomplishments
                Components:Breadboard
LM386 IC
1.2K Ohm and 10 Ohm Resistors
10muF , 220muF , 104pF , 47nF Capacitors
Headphone Jack
Battery 9v and Battery clip

Testimonial Page
                  A testimonial is a positive statement from a customer about a product or service,often used in marketing to build trust and credibility.
                
AccomplishmentsTools: HTML , CSS , JavaScript
                  Designed and developed a responsive testimonials section showcasing user feedback in a clean, grid-based layout.
Implemented dynamic testimonial cards with user names, avatars, and review text to enhance credibility and trust.

Social proof Section Page
                  A responsive social proof section with a focus on layout and responsiveness.
                
AccomplishmentsTools: HTML, CSS,JavaScript
                  Designed and built a responsive layout showcasing customer testimonials and brand ratings to establish trust and credibility.
Implemented a clean and modern UI using CSS Flexbox/Grid for optimal alignment and spacing across devices.

Notification page
                  A responsive page that displays notifications and allows users to mark them as read.
                
AccomplishmentsTools: HTML, CSS,JavaScript
                  Users can view a list of recent notifications with clear visual indicators for unread vs. read messages.
Admins or system users can dynamically generate and manage notification content through mock data or API integration.Users can mark individual notifications as read or mark all as read with a single action.

Interactive rating component
                  Focused on responsive design, smooth active states, and intuitive user interaction.
                
AccomplishmentsTools: HTML, CSS,JavaScript
                  Built an interactive UI component where users can select a rating from 1 to 5 and submit their feedback.
Implemented dynamic state changes to display a thank-you message with the selected rating after submission.

Solenoid Lock Using Arduino uno
                  A solenoid lock project using an Arduino Uno involves using the Arduino to control a relay,which then switches power to a solenoid lock,allowing for electronic locking and unlocking of a door or other mechanism. 
                
AccomplishmentsComponents:Arduino Software
Arduino uno
Solenoid lock
Relay Module
Fingerprint Sensor(Adafruit library)
12v Battery and Connecting wires

HR Analytics Dashboard Using Power BI
                  This HR Analytics Dashboard, likely built with Power BI, provides insights into employee attrition and other key HR metrics. 
                
AccomplishmentsTools: Power BI
                  To analyze employee turnover trends and identify key factors influencing attrition. 
To visualize various data points related to HR, such as employee demographics, job roles, and salary bands, in relation to attrition.

Skills

Languages and Tools

Python

Java

C

HTML

CSS

Tableau

Excel

Power BI

Multisim

VS Code

Canva

Libraries And Databases

NumPy

Pandas

Seaborn

matplotlib

Certificates

                        
                        Introduction to Internet of Things(NPTEL)
                      
                        Sensor Technologies(NPTEL)
                      
                        GUVI (generative AI)
                      
                        PSG workshop
                      
                        Frontend Development(HTML)
                      
                        Robo Miracle(Industrial visit)
                      
                        NSS volunteer(Agaram'24)
                      
                        Technofete'25(IOT)
                      
                        Avera EEE Association(Poster presentation)
                      
                        Excel For Beginners(Simplilearn)
                      
                        The Forage
                      
                        Bosch Rexroth(Industrial Automation Technologies)
                      
                        Tech Carnival-IGNITE Association(Poster presentation
                      
                        Coimbatore Institute of Technology(Cryptera'25)
                      
                        15 dyas Internship at Live Stream Technologies
                      
                        Innovative Design and security Solutions at Dr Mcet(2 Days)

Contact

+91 6380070191

dharanishrids23106@gmail.com

Github