David Gunnarsson
I am a confident and entrepreneurial developer. I love finding simple solutions to complex problems, both on and off screen. Next to constantly learning new things, I am fascinated by music and different cultures.
Key Skills
ruby-on-rails
postgres
redis
sidekiq
stripe
docker
rspec
gherkin
turbo
stimulus-js
tailwind-css
capybara
tdd
javascript
crypto-payments
html
css
grape-api
devise
seo
jekyll
sass
dvorak
figma
ubuntu
apache
bootstrap
mysql
12+ Years of Experience
Senior Software Engineer at University Vienna | since 10/2023
- Building a safe and easy to use storage solution for encrypted research data
- Deploying and maintaining various services
- Revamped & modernized the web presence of our department's main project PHAIDRA
Senior Software Engineer & Co-Founder of Safing | 09/2017 — 08/2023
As Development Lead
- Built & scaled a Rails payment backend with its accompanying authentication API
- Implemented various payment methods: Stripe, PayPal, Crypto and Cash
- Developed and maintained the core website written in Jekyll
- Mentored other developers along the journey
As Co-Founder
- Accompanied the company from the idea, to the lab, to Version 1.0 which now has tens of thousands of daily users
- Pitched our product throughout all stages to grant funders, investors, on TV and Kickstarter
- Created a community from scratch which became the 4th fastest growing open source project in 2022
- Took care of support tickets and the ever growing community spaces
- Built and nourished a network among the creators within our target audience
- Hired and managed employees
Rails Backend Developer at Platogo | 08/2015 — 08/2017
- Optimized and cached queries to scale for the app’s millions of users
- Built a Data Warehouse which aggregated data from the main db for better data analysis
- Created and refactored API endpoints while maintaining backwards compatibility
- Developed an event-scheduler for the marketing team so they could flawlessly create special holiday deals (Valentine’s Day, etc.). Taking all timezones of a global user base into account. I took pride in the final, clean solution
- I had mentors and mentored other developers along the journey, including lots of pair programming
Ancient History
| 2015 | Rails Developer at PL8 |
| 2014 | Junior Web Developer at INFOUND |
| 2013 | |
| 2012 | "Matura" Graduation |
| 2011 | Learned to program through YouTube and blogs. Developed first website where users could compare mobile tariffs ("meintarif.at") |