About Me

Hello there 👋

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I am Pubudu Jayawardana and thanks for visiting my personal web site.

I am based in the Netherlands 🇳🇱, originally from Sri Lanka 🇱🇰
I work as a senior solutions software engineer (cloud engineer) at PostNL the Dutch national postal service.
I am also an AWS Community Builder (since May 2021) in the Serverless category.
A frequent blogger, a public speaker and frequently engaging with the tech community.
AWS certified - Solution Architect Professional.
Proficient in a range of technologies, including AWS, Serverless, EDA, AWS CDK, and Python.
Passionate about sharing my experiences and learnings and always open to enlightening and learning from others.

Connect 🌐

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https://www.linkedin.com/in/pubudusj
https://twitter.com/pubudusj
https://github.com/pubudusj
https://medium.com/@pubudusj
https://dev.to/pubudusj

Public Talks 🎤

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I love public speaking and below are some of the events where I’ve had the privilege of participating as a speaker

2024

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1. AWS Re:Invent 2024 - From single to multi-tenant: Scaling a mission-critical serverless app (DEV341)
2. AWS Community Day Netherlands - Moving a mission-critical serverless application from single-tenant to multi-tenant
3. JAWS Pankration 2024 - Simplifying AWS Architectures: Exploring Lambda-less Solutions.
4. AWS Summit Berlin 2024 - Design a mission critical serverless application for high resilience.
5. AWS Community Day Nordics 2024 - Copenhagen - Design a mission critical serverless application for high resilience.
6. AWS Meetup The Hague - PostNL - Design a mission critical serverless application for high resilience.

2023

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1. AWS Community Day Amsterdam 2023 - How to achieve resilience in a high performance Serverless system.
2. Post-AWS On Tour Meetup Amsterdam - What can AWS Step Functions offer you to make your life easier.
3. AWS Summit Amsterdam 2023 - Large scale parallel data processing with Step Function Distributed Map.
4. AWS Summit Berlin 2023 - Large scale parallel data processing with Step Function Distributed Map.
5. AWS re:Invent 2022 re:Cap Amsterdam - How to achieve resilience in a high performance Serverless system.

2022

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1. AWS re:Invent 2022 - DevChats on Building a smart door bell with AWS Serverless.
2. Serverless Saturdays, AWS UG Tirupathi India - Build a simple leave management system with AWS Serverless
3. AWS User Group Colombo, Sri Lanka - Manage webhooks at scale with AWS Serverless
4. AWS User Group Coimbatore, India - Create a Smart Doorbell with AWS Serverless

2021

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1. JAWSpankration by AWS User Group Japan - How to create a simple OTP system with AWS Serverless services

Previous Nextsads

Podcast Appearance 🎙️

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• Amazon EventBridge Pipes: A new approach to event driven architecture @ DevOps with Zack

ServerlessLand Contributions 🤝

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As a part of my knowledge sharing efforts, I have been contributing to ServerlessLand patterns.

• Step Functions to EventBridge Scheduler with AWS SAM (Python)
• DynamoDB Stream to SQS queue using EventBridge Pipes
• Split SQS Messages into multiple SQS queus using EventBridge Pipe with CDK (Python)
• EventBridge schedule to trigger a Step Functionsworkflow
• SQS to trigger Step Functionsusing EventBridge Pipe with CDK (Python)
• EventBridge Scheduler to raise EventBridge event every 5 minutes with CDK (Python)
• SQS to EventBridge Bus using EventBridge Pipes
• DynamoDB seed data on create with custom resource using CDK (Typescript)
• Lambda Extension for SSM Parameter Store with CDK (Typescript)
• CloudWatch Logs Subscription to Kinesis Firehose
• S3 replication to multiple S3 buckets with CDK
• Start Step Functionsexecution within Step Function
• S3 to Lambda to Rekognition
• Application Load Balancer with Lambda as a target
• Step Functions to Polly to S3 with CDK (Typescript)
• CloudWatch Logs Subscription to AWS Lambda
• Step Functions to Amazon SES with CDK (Typescript)
• AppConfig Feature Flag