Sachin Kumar
Sachin Kumar

Sachin Kumar

AI/ML · Management: 1-2 years · Partially remote · Relocation · Can start in 2 weeks
Data Scientist
19+ years exp
Management: 1-2 years
SQL
Python
Active 1 hour ago
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Overview
Technical skills
Projects
Timeline
Roles

Overview

Senior Data Engineer with extensive experience in SQL/T-SQL, SSIS-based ETL, data validation, and production support for regulated reporting environments. Has built and optimized end-to-end data integration workflows, including SQL performance tuning and ETL reliability improvements. Also develops automation using Python and web APIs, with cloud data platform exposure including Snowflake and Google Cloud services.
Phone

Technical skills

Languages
2
SQL
Python
Other
20
MS SQL
SSIS
Django
FastAPI
Snowflake
GCP
Google BigQuery
Oracle
SAP HANA
NumPy
Pandas
SAP BW
Git
Rest API
Microsoft Fabric
Informatica
CI/CD
dbt
ETL/ELT
Incident Management

Projects

Application gateway
Nov 2011 to Oct 2015 3 Years 11 Months

Optimised complex SQL queries, SSIS packages, and ETL data-loading processes to enhance data processing efficiency, improve batch execution performance, strengthen ETL reliability, and ensure consistent data integration across enterprise systems.

Timeline

Associate consultant · Middle
Tata consultancy services · Full-Time
Jan 2023 to Present 3 Years 10 Months Fully remote

Design and support enterprise data solutions and cloud data workflows using SQL, SQL Server, Snowflake, and Python.

Support and enhance SSIS-based ETL and enterprise data integration processes, focusing on data accuracy and reliable pipeline execution.

Provide L3 production support, investigate data-processing failures, analyse SQL logic and ETL flows, and implement corrective fixes.

Develop Python automation scripts and REST APIs using FastAPI/Django to reduce manual operational work.

Develop and support SSIS packages for financial data integration and regulatory reporting across multiple source systems.

Tune SQL queries, SSIS data flows, and transformations to improve batch performance and operational stability.

Manage ETL lifecycle activities including requirements analysis, development, deployment, scheduling, monitoring, validation, and support

Senior Data Engineer / Production Support (Assistant Consultant) · Senior
Tata Consultancy Services (TCS) · Full-Time
Jan 2023 to Present 3 Years 10 Months In office
Design and support enterprise data solutions and cloud data workflows using SQL and data integration components. Provide L3 production support by investigating processing failures, analyzing SQL logic, and applying corrective fixes. Develop Python automation plus REST APIs to reduce manual operations, and maintain SSIS packages for financial and regulatory reporting data flows. Optimize SQL and ETL batch performance to improve stability and delivery.
SQL
MS SQL
SSIS
Snowflake
Python
FastAPI
Django
Delivery & Team Management (Lead Consultant) · Lead
Infosys Limited · Full-Time
Nov 2021 to Jan 2023 1 Year 2 Months Fully remote

Lead and support a client DevOps team through mentoring and resource coordination. Contribute to risk management, estimation inputs, and technical decision-making for delivery. Focus on coordinating execution and supporting team delivery activities for the client engagement.

Senior Data Engineer / Production Support & Regulatory Reporting (AVP) · Senior
Barclays Bank · Full-Time
Nov 2011 to Oct 2021 9 Years 11 Months Partially remote

Manage production troubleshooting for compliance and regulatory reporting data environments with high operational volume. Build SQL/T-SQL for data extraction and transformation, handle priority incidents, and perform root-cause analysis with data-fix approaches. Create Python and SAS automation for data validation to reduce manual reporting effort, and support SSIS-based financial data integration. Improve ETL reliability and batch performance through SQL, SSIS, and loading process optimization.

SQL
MS SQL
Python
SAS
SSIS
SQL Developer · Middle
Headstrong Consultants · Full-Time
Feb 2010 to Nov 2011 1 Year 9 Months In office
Develop SQL Server stored procedures, views, and functions using T-SQL to support reporting needs. Investigate data discrepancies in production and tune SQL queries to improve processing efficiency. Support ongoing troubleshooting by analyzing query behavior and refining database logic.
SQL
MS SQL
SQL Developer · Middle
HCL Technologies · Full-Time
Jan 2007 to Feb 2010 3 Years 1 Month In office
Develop transactional database scripts and support database troubleshooting using SQL analysis. Assist with test deployments, analyze defects, and validate behavior after fixes. Ensure correctness of post-change data outcomes through SQL-based verification.
SQL