Dhanush Krishnan Narayanasamy
Harrow, Pinner,UK
Summary
Adaptable professional with master's degree in business Analytics from World renowned university, Warwick Business School focused on data engineering with background in designing, implementing, and optimising data infrastructure. Capable of delivering robust data solutions and streamlining data workflows by leveraging skills in SQL, Python, Power BI. Tableau and cloud platforms. Adept at translating complex data sets into actionable insights to drive business decisions.
Overview
4
4
years of professional experience
1
1
Certification
Work history
AI/ML Data Engineer intern
Baseel Solutions Limited
09.2024 - Current
- Generated comprehensive dataset by web scraping multiple cybersecurity related news websites; Utilised Python libraries such as Beautiful Soup and Selenium for seamless data extraction
- Implemented SMOTE sampling technique to address 80/20 class imbalance, improving model F1-score from 0.65 to 0.82 and reducing false negatives by 40%
- Developed text classification model using cybersecurity-specific sentence transformers (Secbert, Cybert) classifying 10,000+ daily cybersecurity news articles into relevant categories
- Implemented semantic chunking technique to reduce text processing time by 65%, condensing 1000+ page documents into contextually similar segments
- Designed FAISS vector database with sentence-level embeddings, decreasing query response time while handling 2000 text documents and achieving 95% retrieval accuracy
- Ensured error-free production migration of 10 TB data across 5 database systems with clear roadmap and conflict management in place.
ETL and BI Analyst
Cognizant Technology Solutions
10.2020 - 07.2023
- Utilised ETL (Extract, Transform and Load) structures and data cleansing transforms in SAP Business Objects Data Services to deliver efficient ERP solution to client
- Developed End-to-End integration of Google Sheets API using SAP Business Objects Data Services and cURL scripts to read live data from Google Sheets
- Enhanced quality of sales data was delivered by leveraging various functionalities of SAP Business Objects Data Services and SAP
- Information Steward; Achieved 90% data quality after performing required data cleansing operations
- Developed 5 interactive Power BI dashboards with advanced DAX functions to track 15 key performance metrics, customer behaviours, and market trends
- Collaborated with 4 consultants from data governance team to facilitate better understanding of product performance and customer trends; Interacted with finance director of client company to accelerate project timelines across departments.
- Contributed to team projects by providing key analytic insights.
- Utilised SQL programming tasks to manage large databases efficiently.
- Facilitated client meetings to discuss and interpret analysis findings.
- Conducted thorough market research for better competitive understanding.
Education
MSc - Business Analytics
Warwick Business School
SAP AG, Germany, Certified associate in Data Integration with Data Services - undefined
B.E - Electronics and Communication
Anna University
Skills
- Data analysis & Reporting: Advanced SQL, Business Objects
- Data Visualization : Power BI, Tableau, Python Library, Microsoft Excel
- Analytical Modeling: R programming, Python, SMOTE, FAISS
- ETL & Data Integration: Business Objects Data Services (Associate Certified), SAP Information Steward, API
- Cybersecurity NLP: Secbert, Cybert
- Soft Skills: Conflict Management, Analytical thinking, Effective decision making, team collaboration
- Data concepts: Dataflow, Data pipelining, Information forensics, Linked Data, BigQuery,
- Project methodologies: Agile, Dev-ops, Daily stand up, Sprint planning
Certification
Certified associate in Data Integration with Data Services
Timeline
AI/ML Data Engineer intern
Baseel Solutions Limited
09.2024 - Current
ETL and BI Analyst
Cognizant Technology Solutions
10.2020 - 07.2023
SAP AG, Germany, Certified associate in Data Integration with Data Services - undefined
B.E - Electronics and Communication
Anna University
MSc - Business Analytics
Warwick Business School
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