João Cardoso
Lead Developer at IOD (iamondemand)
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolJoão Cardoso is a Lead Developer with 17 years of hands-on experience building full-stack systems and running production workloads on AWS and GCP from Helsinki. He combines product-minded engineering with cloud-native infrastructure expertise, having founded and sold an image-processing SaaS and led backend rewrites to improve performance. Comfortable across Go, Ruby, and JavaScript, he has shipped microservices, APIs, and analytics pipelines while also owning Terraform/GKE/Istio/GCP and Lambda/ECS/CloudFormation/AWS flows. An active freelance technical writer and maintainer of cloud tooling, his open-source work includes architecting a distributed, Lambda-powered load tester that demonstrates pragmatic, serverless scale. João prioritizes work that drives business value and enjoys translating complex distributed systems into reliable, production-ready services. He’s equally likely to debug a tricky backend issue as to discuss architecture over a good cup of coffee.
17 years of coding experience
13 years of employment as a software developer
BBA, Business Information Technology, BBA, Business Information Technology at HAAGA-HELIA University of Applied Sciences
English, Portuguese
Github Skills (11)
aws-sqs-fifo10
aws-lambda10
cloud-infrastructure10
go10
backend10
aws10
ias10
back-end-development10
amazon-sqs10
cicd5
nodejs5
Programming languages (6)
Github contributions (5)
goadapp/goad
Jan 2016 - Jan 2017
Goad is an AWS Lambda powered, highly distributed, load testing tool
Role in this project:
Cloud Engineer & Backend Developer
Cloud Engineer & Backend DeveloperContributions:59 commits, 9 PRs, 44 pushes in 11 months
Contributions summary:João primarily focused on setting up the infrastructure for the load testing tool. Their contributions included creating the necessary AWS resources, such as IAM roles, SQS queues, and Lambda functions, with the infrastructure implemented in Go. They added core functionality for invoking Lambda functions and aggregating results. The user also worked on integrating the core goad package, including the CLI functionality and the definition of the test configuration.
lambdaload-testingserverlessaws-lambdadistributed-load-testing
libpixel/libpixel-uploader
Nov 2015 - Oct 2016
Contributions:4 releases, 16 commits, 2 PRs in 10 months
javascript-libraryclient-sidejavascriptnodejsaws-s3
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