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Enes Butun

@enesbutun

Senior Full Stack Developer at IBM who developed Python data pipelines and event-driven services for digital healthcare systems.

United Kingdom

Message

At IBM London, I developed backend services and Python data-processing pipelines for digital healthcare systems. I also built REST APIs and event-driven solutions using AWS services.

At Northdoor LTD, I led the migration and re-architecture of insurance applications following the AIG merger. I delivered event-driven services and a reusable React and TypeScript interface.

At Adflex LTD, I developed online payment solutions for Mastercard, Visa, and Amex, and contributed to a payment platform processing high volumes of daily transactions. I also integrated AI-based fraud detection into payment processing systems.

Earlier, I developed core banking modules and loan workflows at (INTERTECH Information Technology LTD.), and planned and developed ERP and supply chain modules at (VENERO/IBM TECHNOLOGY LTD.).

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

IBM

Jan 2026 - Oct 2026 (9 months)

Designed and developed scalable backend services using Python and AWS serverless technologies for digital healthcare systems. Built RESTful APIs, event-driven solutions, and React frontend components following NHS standards.

Python fastAPI AWS Lambda API Gateway EventBridge Amazon SQS SNS DynamoDB S3 Pandas React TypeScript Cloudwatch Agile

Senior Full Stack Developer

Northdoor LTD

Jan 2025 - Jan 2026 (1 year)

Led migration and re-architecture of insurance applications following AIG merger, delivering event-driven services with C#/.NET and Node.js. Built React frontend and implemented CI/CD with AWS CodePipeline.

C#.NET NodeJS React TypeScript AWS Amazon SQS SNS EventBridge Lambda API Gateway Cloudwatch Xray CI CD AWS CodePipeline CodeBuild

Senior Full Stack Developer

Adflex LTD

Jan 2022 - Jan 2025 (3 years)

Developed full-stack web applications using .NET Core, Python, React.js, Next.js, and AWS. Implemented payment processing solutions for major credit card networks and integrated AI-based fraud detection.

.NET Core Python React Next.js TypeScript AWS API Gateway Lambda Step Functions Docker Kubernetes Terraform Test Driven Development Microservices

Senior Full Stack Developer

Safened Deposits Limited

Jan 2020 - Jan 2022 (2 years)

Contributed to building greenfield banking web applications using React.js, Vue.js, .NET Core, and AWS. Developed financial APIs and event-driven workflows with AWS services.

React Vue.Js .NET Core Python TypeScript JavaScript AWS EventBridge Step Functions Lambda DynamoDB API Gateway Terraform Cloudwatch NUnit Cypress

Senior Full Stack Engineer

FNZ & Irish Progressive Services International Limited (IPSI

Jan 2019 - Jan 2020 (1 year)

Developed the IPSI web application platform using .NET Core, Angular, React.js, and Azure Cloud. Designed scalable cloud architecture and migrated existing insurance services to Azure.

.NET Core Angular React TypeScript Azure Azure Functions Logic Apps API Management Azure Cosmos DB Event Grid Azure DevOps NUnit Selenium

Team Leader - Senior Software Developer

INTERTECH Information Technology LTD.

Feb 2013 - Jan 2019 (5 years 11 months)

Led a team in the Core Banking area, developing modules using .NET technologies and agile practices. Managed team responsibilities and contributed as lead developer on various banking projects.

.NET C#.NET Core ASP.NET MVC Web APIs NodeJS Angular Microservices SQL Server Azure Test Driven Development NUnit Scrum

Senior Software Developer

VENERO/IBM TECHNOLOGY LTD.

Sep 2006 - Dec 2012 (6 years 3 months)

Designed and implemented a material management module using .NET technology, including warehouse and B2B modules. Developed ERP modules and integrated with e-commerce platforms and POS systems.