saumya mitra
Contact details — on requestProof of Work — on request
Experience
Associate, Data Engineer
Cognizant Technology Solutions · Jul 2022 – Present
- Designed production-grade Azure Data Factory pipelines and Databricks notebooks (PySpark/SQL) to orchestrate ingestion "," transformation "," load into Synapse; automated Raw Curated dataflows improving load efficiency by 30%.
- Led migration of 500+ files from Gresham CTC servers to Azure Synapse using Databricks; managed 2 junior engineers; delivered ~$800,000 operational cost savings in 8 months.
- Built SQL-driven reconciliation and vendor receipt anomaly detection enabling potential $300,000 savings; implemented Oracle/SQL Server stored procedures for automated balance checks.
- Hardened security posture with Azure Key Vault, RBAC, managed identities, and sensitive data masking spanning multiple environments.
- Implemented Azure DevOps CI/CD for ADF with Git version control; standardized release workflows and improved deployment reliability.
- Authored Python + Logic Apps automation for weekend operations, removing manual interventions and improving SLA adherence.
- Drove project transition handover; created runbooks and architecture docs (MS Visio); onboarded and trained junior resources in ADF, PySpark, Azure DevOps, and reconciliation concepts.
- Collaborated in Agile sprints using Azure Boards/JIRA and Kanban practices for throughput tracking and prioritization.
Associate IT Consultant, Data Engineer
ITC Infotech · Feb 2022 – Jul 2022
- Optimized Delta Lake ETL pipelines using ADF and PySpark, increasing throughput and reliability for large-scale data processing.
- Built parameterized, reusable ADF pipelines for multi-source ingestion and transformation; improved maintainability and reusability.
- Established data-cleaning and deduplication in PySpark/SQL to enhance downstream quality; integrated Azure DevOps for CI/CD and releases.
Systems Engineer
Tata Consultancy Services · Nov 2018 – Jan 2022
- Developed REST APIs in ASP.NET/C# with backend validations (LINQ/SQL) and deployed on IIS.
- Created optimized stored procedures and SSRS reports in SQL Server; enhanced UI components with HTML5/CSS3/JavaScript.
- Managed source control and CI/CD via Git/TFS; built automated functional tests with Selenium and Appium; conducted API testing with Postman/SOAP.
- Produced technical designs and workflow architectures (MS Visio) and delivered features in Agile sprints.
Skills 0 proven through work
Also works with
Delta Live Tables UsageCode ReviewTechnical TroubleshootingMentoring and Peer CoachingFull-stack DevelopmentRequirements AnalysisSecurity ArchitectureScalable System DesignAPI Documentation with Swagger/OpenAPIC# DevelopmentBackend DevelopmentTeam LeadershipAzure DeploymentCloud Migration PlanningREST API Endpoint DevelopmentData Mart DevelopmentAWS LambdaAWS GluePostgreSQL Database UsageSnowflakePySparkAPI Key ManagementAPI IntegrationCron Job SchedulingAzure Data Factory Pipeline DevelopmentData TransformationMachine Data Ingestion DesignData ExtractionPython DevelopmentETL Pipeline Development
Proof of Work
Proof of Work
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Education
M.Tech, Data & Computational Sciences
IIT Jodhpur · 2023 — 2025
B.Tech, Electrical Engineering
WBUT · 2014 — 2018
Contact details
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