Sudipta Kumar Paik

Senior Full Stack Developer & Tech Lead | AWS Certified | Java | Python | Node.js | TypeScript | AWS Serverless | AI/LLM Integration

Sudipta Kumar Paik - Senior Full Stack Developer

Senior full stack developer and technical lead with 15+ years of experience building cloud-native web, mobile, and API platforms. Public profiles highlight current work in Berlin with Wallround, a long-running GitHub presence, AWS certification, and a stack spanning Java/Spring Boot, Python/FastAPI/Django/Flask, Node.js/NestJS, TypeScript/Next.js, React, Vue, and AWS serverless services.

  • AWS cloud architecture, serverless systems, and infrastructure as code
  • AI-assisted engineering, LLM integration, and pragmatic automation
  • Microservices, API platforms, and enterprise middleware
  • Performance, scalability, high availability, and cost optimization
  • Agile delivery, mentoring, code review, and continuous improvement
  • Object-oriented design, architectural best practices, and clear documentation

Highlights

  • 15+ years delivering full stack software across Java, Python, Node.js, TypeScript, and .NET.
  • AWS Certified Developer with hands-on AWS Lambda, API Gateway, RDS, S3, Cognito, DynamoDB, SQS, ECS/EKS, and IaC experience.
  • Technical lead for enterprise middleware, serverless APIs, cloud-native platforms, and AI-assisted engineering workflows.
  • Public GitHub profile with 289 repositories across TypeScript, Python, Java, JavaScript, Shell, HTML, and Astro.
  • Recent public work includes Next.js/TypeScript applications, FastAPI experiments, documentation tools, and AI development utilities.
  • Experienced in mentoring, code review, technical documentation, secure delivery, and cross-functional collaboration.

Work Experiences

Senior Backend Engineer

Wallround | November 2025 - Present

Lead full lifecycle product engineering for cloud-native applications, including architecture, implementation, review, testing, and production delivery. Current public profiles emphasize enterprise middleware, microservices, AI-assisted development, integration work with TypeScript, Python, Java, and AWS.

  • Technical leadership and architecture
  • Specification, feasibility, and delivery planning
  • Code review, mentoring, and security review
  • AI/LLM integration and automation
Technologies used:
  • NestJs
  • Postgres SQL
  • Amazon Web Services (AWS)
  • AWS RDS
  • ReactJs
  • TypeScript

Tech Lead

TechJays | May 2024 - October 2025

Software Development: Lead and Execute full lifecycle software development, including designing, coding, testing, and debugging software applications. Ensure the delivery of high-quality, efficient, and maintainable code.

  • Specification and Feasibility
  • Code Review
  • Security
Technologies used:
  • NestJs
  • Postgres SQL
  • Amazon Web Services (AWS)
  • AWS Serverless/SAM
  • AWS Lambda
  • AWS RDS
  • AWS Amplify
  • AWS Cognito
  • AWS KMS
  • ReactJs
  • TypeScript
  • Serverless Framework

Java/AWS Developer

TBSCG | 2021 - 2024

Software Development: Execute full lifecycle software development, including designing, coding, testing, and debugging software applications. Ensure the delivery of high-quality, efficient, and maintainable code. And

  • Specification and Feasibility
  • Continuous Improvement
  • Problem Solving
  • Documentation
  • Technology Evaluation
  • Code Review
  • Security
Technologies used:
  • Magnolia CMS
  • Java
  • Amazon Web Services (AWS)
  • AWS Serverless/SAM
  • AWS Lambda
  • VueJs
  • TypeScript
  • Terraform
  • CloudFormation

Senior Software Engineer

W3 Engineers Limited | 2015 - 2021

Technical Leadership: Provide technical leadership within the software development team. Mentor junior engineers, share best practices, and foster a culture of continuous learning and improvement. Lead by example in coding standards and development methodologies.

  • Project Ownership
  • Architectural Design
  • Code Quality
  • Problem Solving
  • Collaboration
  • Technical Documentation
  • Continuous Learning
  • Performance Optimization
  • Risk Management
Technologies used:
  • Python
  • Django
  • Flask
  • ExpressJs
  • Linux
  • Android Development
  • Amazon Web Services (AWS)
  • AWS S3
  • AWS EC2
  • AWS EBS
  • Amazon Relational Database Service (RDS)
  • Vue.js
  • NuxtJs
  • React.js
  • Stylus
  • MongoDB

Software Engineer

Genweb2 Limited | 2014 - 2014

Software Development: Develop and maintain software applications using the .NET framework, including web for financial business.

  • Coding
  • System Configuration
  • Application Design
  • User Support
  • Collaboration
  • Documentation
  • Technology Evaluation
Technologies used:
  • .NET
  • C#
  • ASP.NET
  • Oracle Database
  • MS SQL Server

Software Engineer

Jaxara It Limited | 2012 - 2014

Software Development: Develop and maintain software applications using the .NET framework, including web for health sector.

Technologies used:
  • .NET
  • C#
  • VB.NET
  • Sitecore
  • ASP.NET
  • ASP.NET MVC
  • MS SQL Server

Software Engineer

Desme Bangladesh | 2012 - 2012

Software Development: Develop and maintain software applications using the .NET framework, including web for ecommerce.

Technologies used:
  • .NET
  • C#
  • ASP.NET
  • ASP.NET MVC
  • MS SQL Server

Software Engineer

HawarIt Limited | 2011 - 2012

Software Development: Develop and maintain software applications using the .NET framework, including web for music and custom website.

Technologies used:
  • .NET
  • C#
  • ASP.NET
  • Umbraco CMS
  • MS SQL Server

Software Engineer

Simplexhub Limited | 2010 - 2011

Software Development: Develop and maintain software applications using the .NET framework, including web for real state.

Technologies used:
  • .NET
  • ASP.NET
  • HTML
  • CSS

Projects

Public GitHub Work

Maintains a long-running public GitHub profile with 289 repositories, including TypeScript, Python, Java, JavaScript, Shell, HTML, and Astro projects. Recent public work includes Next.js/TypeScript applications, FastAPI experiments, documentation sharing tools, and applied AI development utilities.

PolyAPI (Modern Enterprise Middleware is Here!)

Role: Tech Lead & Full Stack Developer
Contribution: Led development of enterprise middleware platform using NestJS, TypeScript, and AWS services. Implemented AI-assisted development features, Kubernetes-native deployment, and microservices architecture. Reduced API development time by 60% and improved system reliability through automated testing and CI/CD pipelines.

Contribution: Contributed to a health and wellness platform for people living with chronic conditions, focusing on maintainable application delivery, API integration, and user-facing product workflows.

Doosan Bobcat

Contribution: Worked on enterprise web delivery for a global construction and equipment brand, supporting CMS-backed content, cloud integration, and reliable customer-facing digital experiences.

Contribution: Supported pharmaceutical web platform delivery with CMS, frontend, and cloud implementation work for a regulated customer-facing site.

RentByOwner Vacation Rentals

Contribution: Built and maintained travel marketplace functionality across a large property-search network, working on backend APIs, frontend integrations, performance, and release delivery.

Additional production platforms include vacation rental marketplaces, ecommerce, healthcare, real estate, and custom web applications delivered across .NET, Python, JavaScript, Vue, React, and cloud infrastructure.

Alohavillas.io

Alojamiento.io

Bedroomvillas.co.uk

Bedroomvillas.com.au

Execstays.com

Meilleureslocations.fr

Rentalhomes24.de

Stays.io

Summerrentals.io

Vacationhome.rent

bedroomvillas.com

rentalhomes.com

qeasy.io

trynewleaf.com