Konjeti Chiranjeevi Sailikith
DATA ENGINEER
Chennai
Summary
Data Engineer with 5+ years of experience in designing and optimizing ETL pipelines, cloud-based data ingestion frameworks, and large-scale data transformation workflows across telecom and financial billing domains. Expertise in SQL, PL/SQL, Snowflake, AWS S3, Apache Airflow, Informatica, and dbt, with hands-on experience in migrating legacy ETL systems to modern cloud platforms. Skilled in building scalable data pipelines, implementing incremental data loading strategies, and ensuring high data accuracy for analytics and reporting.
Overview
5
5
years of professional experience
1
1
Certification
Work History
DBT & Snowflake Data Modernization
Accenture
06.2023 - Current
- Migrated on-premise ETL workflows from IBM DataStage to cloud using dbt and Snowflake
- Designed and developed DBT models across staging, intermediate, and marts layers
- Integrated AWS S3 for scalable data ingestion and storage
- Developed incremental models in DBT to optimize processing time and performance
- Performed data validation and reconciliation between source and target systems
- Tuned Snowflake queries and optimized warehouse performance
- Automated workflow scheduling and monitoring using orchestration tools
- Supported UAT, production deployment, and post-go-live activities
Application Data Analyst
Accenture
03.2021 - 06.2023
- Built scalable ETL pipelines using Snowflake and AWS S3
- Developed ETL workflows using Informatica for billing and financial data processing
- Designed and scheduled workflows using Apache Airflow DAGs
- Configured Snowflake external stages and optimized COPY INTO for bulk data loads
- Implemented incremental data loading (MERGE) for efficient processing
- Developed complex PL/SQL objects (procedures, packages, triggers)
- Performed data validation, reconciliation, and quality checks
- Tuned queries for better performance using Snowflake Query Profile
- Provided production support and incident resolution via ServiceNow
Education
Bachelor of Science - Computer Science and Engineering
Kalasalingam University
Madurai, India 04.2001 -
Intermediate - M.P.C
Narayana Jr. College
Nellore, India06-2016
SSC -
Narayana EM High School
Nellore, India03-2014
Skills
Programming & Querying: SQL, PL/SQL, Oracle SQL, Python
Data Engineering: ETL Development, Data Pipelines, Data Modeling, Data Transformation, Data Validation
ETL / Orchestration Tools: Informatica, Apache Airflow, DBT
Cloud & Data Platforms: Snowflake, AWS S3, External Stages, COPY INTO
Databases: Oracle, SQL Server
Performance Optimization: Query Tuning, Incremental Loads, MERGE Operations
Automation & Scripting: UNIX Shell
Scripting Tools: TOAD, SQL Developer, SQL Plus, SSMS, WinSCP
Putty Process & Support: Production Support, RCA, Incident Management, ServiceNow, SDLC
Certification
Oracle Cloud Infrastructure Certified Associate
Timeline
DBT & Snowflake Data Modernization
Accenture
06.2023 - Current
Application Data Analyst
Accenture
03.2021 - 06.2023
Bachelor of Science - Computer Science and Engineering
Kalasalingam University
04.2001 -
Intermediate - M.P.C
Narayana Jr. College
SSC -
Narayana EM High School