whoami

Leszek Ucinski

Cloud Architect, IoT

I design AWS backends for connected devices, from the sensor and its certificate to the API and the data behind it. Building on AWS since 2021, based in Malmö, Sweden.

View my LinkedIn GitHub

Happy to talk about cloud and IoT roles.

certifications

AWS Certified Security, Specialty Active Issued 2024
AWS Certified Developer, Associate Active Issued 2025
AWS Certified AI Practitioner Active Issued 2024

Earlier

AWS Certified Solutions Architect, Associate 2022 to 2025
AWS Certified Cloud Practitioner 2021

Courses in Terraform on AWS, CloudFormation, CDK delivery pipelines and serverless design for IoT. Verify on LinkedIn

stack

AWS: IoT Core
Lambda
API Gateway
DynamoDB
S3
CloudFront
EventBridge
Step Functions
Bedrock
Infrastructure as code: AWS SAM
CDK
CloudFormation
Terraform
Devices: MQTT
ESP32
ESP8266
Raspberry Pi
Sensors
Languages: Python
TypeScript
JavaScript
C and C++
C#
Tooling: Linux
Docker
Git
CI/CD
Agile

work

LesUski/100-Days-in-Cloud

100 Days in Cloud

One AWS lab a day for the last 100 days of 2021, each written up step by step with the code. My most-starred repository.

Repository Challenge log on the blog

AWS labs
Hands-on labs across AWS services, written up so the next person does not have to guess.
IoT projects
Smart-home builds: plant moisture sensors, a dog camera and lighting control, wired to AWS IoT Core.
GitHub
Code for the labs and projects, including serverless APIs for connected-vehicle data.

off the keyboard

I ride 300 km bike races and read about a book a week.