Rejish K.
Senior Principal Engineer - Business Intelligence
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English
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About
Rejish K., a Principal Engineer with over 14 years of experience, is a proficient IT Specialist in the field of business intelligence solutions using Microsoft technologies. Based in Bangalore, Rejish has expertly applied his skills in MSBI, T-SQL, and Power BI across various domains, including HR, Finance, and Sales. At Ascendion Pvt Ltd, he led the development of complex SQL Server stored procedures and ETL processes to support data migration projects for high-profile clients. Previously at LTIMindtree Ltd, he enhanced SQL functionalities and implemented seamless data integration solutions. As a Senior Software Engineer at Marlabs Innovations, Rejish demonstrated his leadership in data warehouse design, utilizing SSIS, SSRS, and Power BI to deliver robust analytics and reports. He has also contributed to banking sector projects, leveraging his extensive experience in data warehousing and system integration. Rejish is certified in Microsoft Power BI and Denodo Platform 8.0, underscoring his commitment to expanding his technical prowess.
Experience
Principal Engineer
Ascendion Private Limited · 2025 — 2025Designed and developed SQL Server stored procedures, functions, and views for the ETL process. Created SSIS/SQL ETL solutions to gather data from various upstream systems. Built data transformations with SSIS, facilitating data transfers between different database platforms. Conducted debugging and tuning of SSIS and ETL processes to enhance data movement accuracy and efficiency. Implemented and maintained database objects and security measures. Developed strategies for data import and transfer across source, staging, and production environments. Prepared ETL processes for deployment in production and non-production settings. Engaged in coding, testing, debugging, and documentation of programs. Generated technical documentation to ensure system efficiency and integrity, while collaborating with architects and team members with minimal supervision.Senior Software Engineer
LTIMindtree, Canada LTD & LTIMindtree Limited · 2024 — 2025Engaged in discussions regarding technical and design issues with various stakeholders to identify optimal solutions. Actively participated in the software development lifecycle. Managed multiple tasks independently and collaboratively, ensuring product delivery ownership. Developed database objects such as tables, indexes, and views. Addressed issues in both test and production environments, including performance-related challenges, while generating reports tailored to client needs.Specialist – Data Engineering
LTIMindtree Limited · 2021 — 2024Analyzed client requirements to design database objects using SQL Server. Maintained and created various database components including tables, stored procedures, indexes, and views. Prepared data mapping documents for extraction and developed specifications for database objects. Collaborated with integration services to manage data transfers from various sources such as Excel and flat files. Modified existing structures for ETL processes, incorporating error handling methods. Authored complex stored procedures to manage incremental data and managed SSIS package and project deployments. Conducted unit testing and bug fixing, while preparing DB scripts and documentation for UAT and production deployments, following an Agile development methodology.Senior Software Engineer
Marlabs Innovations Limited · 2019 — 2020Reviewed requirement and design documents for understanding the functionality of source and target systems. Led the team in delivering project requirements while applying knowledge of Data Warehouse concepts. Gathered user information regarding workflows and permissions to inform technical designs for BI reports and analytics. Assisted with bug fixing while creating SSRS and Power BI reports based on specific requirements. Supported database design efforts and scheduled SSIS package jobs through SQL Server Agent.Senior ETL Engineer
Calpion Software Technologies Private Limited · 2017 — 2019Designed database objects based on technical specifications and developed/modified SQL code including stored procedures and functions. Prepared DB scripts and managed sprint-wise deployments across various environments. Ensured versioning was handled appropriately to prevent outages during deployment. Focused on performance tuning and bug resolution, while creating jobs for archiving data. Participated in sprint planning and daily scrums, collaborating with clients and the big data team for data matching.Consultant
Capgemini (iGATE Global solutions) · 2012 — 2017Studied requirements to understand source and target systems for database design. Created tables and developed a Swipe Report for tracking working hours. Scheduled SSIS package jobs using SQL Server Agent and built cubes for reporting purposes, while ensuring units were tested and bugs were fixed.Developer
iGATE Global solutions · 2011 — 2012Designed and built SSIS packages employing various transformations. Developed reports featuring drill-down options and different chart types. Engaged in unit testing and bug resolution. Created packages to load data from Oracle databases to SQL Server, using specific transformations and generating reports based on user specifications.Associate
iGATE Global solutions · 2008 — 2011Managed case creation and support within a Helpdesk ticketing system, ensuring efficient issue tracking and escalation. Collaborated with development and infrastructure teams to resolve issues, while analyzing user trends and assisting with data cleanup tasks as needed.
Skills & Expertise
Education
- Bachelor of Computer ApplicationsR.V. Institute of Management College, Bangalore · 2004 — 2007
- Diploma in ComputersB.E.S College, Jayanagar, Bangalore -78 · 2002 — 2004
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