Sudipta Kumar Paik
- +49-15222-131484
- sdiptapaik@gmail.com
- Berlin, Germany
- github.com/skpaik
Senior full stack developer and tech lead with 16+ years of experience building cloud-native web, mobile and API platforms. Based in Berlin and currently a Senior Backend Engineer at Wallround. Strongest in TypeScript/NestJS, Java/Spring Boot and Python (FastAPI, Django, Flask) on AWS serverless, with a growing focus on AI/LLM integration.
Highlights
- 16+ years across Java, Python, Node.js/TypeScript and .NET, from web to mobile and APIs.
- AWS Certified Developer - Associate; serverless, containers and infrastructure as code.
- Tech lead on enterprise middleware, serverless APIs and CMS platforms for global brands.
- Mentoring, code review and security review as part of everyday delivery.
Work Experience
Senior Backend Engineer
Lead architecture, implementation, review and production delivery for cloud-native applications.
- Enterprise middleware and microservices on TypeScript, Python, Java and AWS
- AI/LLM integration and automation in day-to-day engineering
- Code review, security review and mentoring
- NestJS
- TypeScript
- React
- PostgreSQL
- AWS RDS
- AWS
Tech Lead
Led full-lifecycle development of serverless AWS applications, from design to production.
- Specification, feasibility and technical direction
- Code review and security across the delivery pipeline
- NestJS
- TypeScript
- React
- PostgreSQL
- AWS Lambda / SAM
- Cognito
- Amplify
- KMS
Java / AWS Developer
Built CMS-backed and serverless solutions for enterprise clients.
- Java, Magnolia CMS and AWS Lambda backends with Vue / TypeScript frontends
- Infrastructure as code; documentation, code review and technology evaluation
- Java
- Magnolia CMS
- AWS Lambda / SAM
- Vue
- TypeScript
- Terraform
- CloudFormation
Senior Software Engineer
Technical leadership of a software team: architecture, project ownership and mentoring.
- Full stack delivery in Python (Django, Flask), Node.js/Express, Vue/Nuxt, React and Android
- Set coding standards, mentored junior engineers, owned performance and risk
- Python
- Django
- Flask
- Express
- Vue / Nuxt
- React
- MongoDB
- AWS (EC2, S3, RDS)
Software Engineer
Five .NET web engagements across real estate, music, e-commerce, healthcare and financial services.
- ASP.NET / MVC applications with SQL Server and Oracle
- CMS work on Sitecore and Umbraco
- .NET
- C#
- ASP.NET MVC
- Sitecore
- Umbraco
- MS SQL Server
- Oracle
Selected Projects
PolyAPI - Enterprise Middleware
Tech Lead & Full Stack Developer. Led development of an enterprise middleware platform on NestJS, TypeScript and AWS, with AI-assisted development features, Kubernetes-native deployment and microservices architecture. Reduced API development time by 60% and improved reliability through automated testing and CI/CD.
Ameya
Health and wellness platform for people living with chronic conditions: API integration and user-facing product workflows.
Doosan Bobcat
Enterprise web delivery for a global equipment brand: CMS-backed content, cloud integration and customer-facing reliability.
Idorsia
Pharmaceutical web platform: CMS, frontend and cloud implementation for a regulated, customer-facing site.
RentByOwner
Travel marketplace across a large property-search network: backend APIs, frontend integrations, performance and release delivery.
Vacation-rental network
Also built and maintained sites across the same platform family: Alohavillas.io · Alojamiento.io · Bedroomvillas.com · Bedroomvillas.co.uk · Bedroomvillas.com.au · Execstays.com · Meilleureslocations.fr · Rentalhomes.com · Rentalhomes24.de · Stays.io · Summerrentals.io · Vacationhome.rent · Qeasy.io · Trynewleaf.com · Hey Ermelo
Open source & experiments
289 public repositories on GitHub (TypeScript, Python, Java, Shell). Recent picks: docshare-mini, fast-api-admin-template, spring-boot-microservices-new, today-i-learn, Android-Spotify-MVP.