A picture from Mozilla Festival 2014. All participants are in a circle.

Hello.

I'm Errietta Kostala and I'm a full stack developer...

with a passion.

Learn more


Ever since I was a teenager, I knew I wanted to be involved in programming. I spent countless hours working on my own projects, learning more and more and becoming more and more fascinated.

As I started getting involved in freenode, Mozilla, and other open source projects, it became a way to be part of a community - I could network, make friends, and meet people that would be with me for the rest of my life.

It then became clear to me - I didn't just want to follow my passion of programming. I wanted to teach others what I knew. And I wanted to keep supporting Open Source projects and helping others.

For this reason, I studied Web Technologies at the University of Huddersfield - so that I can learn even more about what I'm passionate for, and I did an internship for Shadowcat Systems - a small company in Lancaster that holds open source and community projects very dearly.

I'm an ex-employee of FairFX (or as I call it FairF-eX) and I currently work as a software developer for Zoopla , and I still spend a lot of my time on community projects.

Do you want to learn more about me? Check out my projects or my blog .

Latest blog posts

Introduction to the fastapi python framework

I have been working on a new python-based API recently, and on a colleague’s suggestion we decided to use fastapi as our framework. Fastapi is a python-based framework which encourages documentation using Pydantic and OpenAPI (formerly Swagger), fast development and deployment with Docker, and easy tests thanks to the Starlette … Continue reading

Build APIs with node, Lambda & Serverless

This is a talk I did at London Node User Group on January 23rd, 2019. You can watch the talk below or on youtube.

Porting errietta.me to nuxt.js

My personal website is one of the places where I can easily experiment, and it has been written and rewritten a few times. Having said that, laziness meant that it was stuck on its previous PHP-laravel implementation for a while. PHP was one of the first things I learned as … Continue reading

Testimonials

I have a sneaking suspicion this woman is going to be scary good in a few years.

Matt Trout, Shadowcat Systems Technical Director.

We get a lot of contributors but it is not every day someone so seamlessly integrates with the entire team. I went away on vacation and when I came back Errietta was an integral part of our work environment – a powerful presence on IRC, at our video demo call and on GitHub.

Cassie McDaniel, Webmaker UX Lead

Errietta has all the qualities of a great web developer — she learns quickly, values feedback from both engineers and designers, and cares deeply about sharing her knowledge with others. I'm always impressed by how quickly she's willing to jump into a new code base and effectively solve problems.

Kate Hudson, Webmaker Developer