William Tisäter
Software Engineer at Stilla
Greater Stockholm Metropolitan Area Sweden
Summary
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Rockstar🎓
Top SchoolWilliam Tisäter is a software engineer with 17 years of experience building and operating highly scalable, performant web applications across startups and large platforms. He has held senior engineering and infrastructure leadership roles—including Head of Infrastructure at Tictail, Staff/Senior Staff Developer at Shopify, and co-founder & CTO at Mason—bridging hands-on development with operational ownership. William contributes to prominent open-source projects such as HashiCorp Consul, focusing on frontend UX and key/value management, and has improved test coverage for Python MySQL clients, reflecting a strong QA and reliability mindset. Based in the Greater Stockholm area and trained in electrical engineering at KTH, he combines systems-level thinking with practical UI/frontend improvements. Colleagues rely on him for refactoring messy UI flows, shipping reliable features, and improving developer-facing tooling in distributed systems.
17 years of coding experience
14 years of employment as a software developer
KTH Royal Institute of Technology
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (17)
unit-testing10
javascript10
python10
mysql10
testing10
ui-design10
uid10
emberjs10
front-end-development10
unit-test10
test-automation10
html9
consul8
mariadb8
mmap6
Programming languages (11)
Github contributions (5)
hashicorp/consul
May 2014 - Sep 2015
Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:93 commits, 1 PR, 13 pushes in 1 year 4 months
Contributions summary:William primarily contributed to the UI/Frontend aspects of the Consul web interface. They fixed broken paths to minified JavaScript files, implemented features allowing dashes in keys, and added UI elements like a cancel button for key editing and a delete folder button. Furthermore, they refactored and improved the UI/Frontend navigation and data presentation, particularly relating to key/value pair management.
api-gatewayecsgolangcenterdistributed
PyMySQL/mysqlclient
May 2015 - May 2015
MySQL/MariaDB connector for Python
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:15 commits, 3 PRs, 16 comments in 5 days
Contributions summary:William's primary contribution involved writing and modifying tests for the `pymysql/mysqlclient` repository. These tests focused on verifying the correct behavior of time-related functions, including date, time, and datetime conversions. The user also addressed issues related to epoch handling and improved test coverage, ensuring the library functions correctly with MySQL data types.
pythonmysqlconnectorsqldatabase-connector
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