Harri Hämäläinen

Harri Hämäläinen

IT Consulting

Software engineering, cloud migrations, and DevOps transformations.


I offer software consulting services ranging from software development to site reliability engineering and cloud migrations. Before starting my own company, I worked with the best consultancies in Finland such as Gofore and Reaktor. I have experience working with multiple Finnish public sector agencies and larger enterprises.

For inquiries, please send me an email to info@harrihamalainen.com or call me at +358503042447 and let's see if I could offer my experience for your business needs.


Recent articles

  • AWS ECR Container Scans across AWS Organization accounts

    July 10th, 2020

    AWS Elatic Container Registry has nowdays capability to scan container images it contains. While being a great (and free!) service feature, it currently lacks aspects that would make it a possible tool for organization wide monitoring and analyzing security landscape. This post goes through some steps to take in order to bridge those gaps.

  • How to use AWS CloudHSM with Kubernetes

    March 15th, 2020

    I go through ways to integrate AWS CloudHSM properly with EKS or any other similar Kubernetes cluster.

  • How to start running GameDays

    February 3rd, 2020

    I got a chance with my client's team to run the first cloud gameday. In this post, I share my experiences and tips on how to run the first gameday successfully with your team and related parties.

  • Professional courage

    January 2nd, 2020

    A recent article about the performance of teams and psychological safety brought up some thoughts on what matters to improve the performance of a team or an organization to the next level. So I got a spark and decided to share my principles, through which I try to work.

  • Asynchronous processing with Django ORMs on AWS Lambda

    April 8th, 2016

    We go trough of one possiblity of doing synchronous processing within your web application with AWS Lambda functions.

  • Importing Spark Dataframes from MySQL on Jupyter notebooks

    October 14th, 2015

    Loading data from MySQL database into PySpark dataframes

  • SQLAlchemy models with JSON fields

    April 13th, 2014

    The purpose of this article was to show how to show how to transparently serialize dictionaries as JSON fields in your database through SQLAlchemy and access them from your code as dictionaries.