Migel Tissera
Business Intelligence Developer @Next
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WORK HISTORY
Business Intelligence Developer @Next
Contributing to NEXT’s enterprise cloud transformation by migrating on-premise data engineering solutions to Microsoft Azure using the Medallion Architecture.Cloud Migration & Architecture • Led the lift-and-shift migration of NEXT’s on-premise data engineering workflows to Azure Cloud using the Azure Medallion Architecture. • Modernised legacy SSIS and SFTP-based integrations into scalable Azure Data Factory (ADF) and Databricks pipelines. • Converted raw SQL, CSV, JSON, and XML sources into highly optimised Delta Lake Parquet structures.Azure Data Engineering • Built and maintained ADF pipelines for: • On-Prem SQL → Delta Tables • Delimited CSV → Delta • JSON → Delta • Incremental loads using watermarking and change-capture patterns. • Designed, deployed, and governed Databricks Unity Catalog, improving data compliance, lineage, and access control. • Developed scalable batch and streaming transformations using PySpark and SQL in Databricks.Automation, CI/CD & DevOps • Delivered production releases through CI/CD pipelines using Azure DevOps, YAML, and PowerShell. • Created new deployment pipelines for ADF, Databricks, and Data Lake assets. • Managed version control, branching strategies, and code reviews via Git.Agile Delivery • Worked in a full Agile environment using Kanban and Scrum practices: sprint planning, estimation, refinement, and feature delivery. • Collaborated with cross-functional teams across UK and offshore locations.Data Integration & On-Prem Migration • Modernised legacy workloads involving: • Microsoft SSIS • GlobalScape • ActiveBatch v12/v14 • SFTP and file transfer automations into Azure.Analytics & Visualisation • Developed and supported Power BI Retail Sales dashboards used by key stakeholders. • Implemented Power BI B2B sharing, Row Level Security (RLS), and integration with Azure Active Directory. • Set up automated alerts, email subscriptions, and secure workspace access for business teams.
EDUCATION
Innoventsys Institute Sri Lanka
Certificate of Stepping into Data Science, Data Science
University of Colombo
Bachelor of Information Technology (BIT), Information Technology
Openarc Schools of Business & Technology
Industrial Diploma in Software Development, Computer Software Engineering
ANC - NetAssist International
Certificate in Microsoft BI Data Modeling, Computer Software Engineering
SKILLS
ABOUT MIGEL TISSERA
A Data Engineer and a Business Intelligence professional with almost 18 years of experience in Fintech Software and Data Development areas. Specialized in Data Analytics, BI Dashboard Designing, Report Designing, SQL querying, Database Development, Azure Data Engineering in Banking & Finance business domain and ERP domain.Experience Banking Professional having more than 8 years of experience in various business areas, such as Core Banking, Credit Card Management, Leasing Management, Debt Collections and Recoveries etc.
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