Mikael Hallgren
Software Engineer at TCO Development
Östersund, Sweden
Summary
👤
Senior🎓
Top SchoolMikael Hallgren is a seasoned frontend engineer with 12 years of experience delivering scalable, high-performance web interfaces using React, TypeScript, Next.js, and Tailwind. He blends a Human-Computer Interaction and Interaction Design background with practical code craftsmanship to build maintainable, design-driven interfaces. At Plant, he led frontend work on a modern LCA tool, implementing 3D IFC renders and UI components, and steered the migration from Chakra UI to Tailwind and ShadCN for design consistency and scalability. He has demonstrated leadership as a team lead and React lead at Detectify, coordinating product delivery and agile processes in frontend teams. Currently, he works as a Software Engineer at TCO Development (since 2025), bringing startup agility and enterprise-quality frontend to data-rich applications. Based in Östersund, Sweden, Mikael combines UX insight with hands-on full-stack experience to create polished user experiences.
12 years of coding experience
14 years of employment as a software developer
Bachelor's degree, Human Computer Interaction, Bachelor's degree, Human Computer Interaction at Stockholm University
Swedish, English, German
Github Skills (11)
react5
portal5
javascript5
classnames5
capistrano5
frontend4
rails3
vue3
ruby-on-rails2
ui-components2
ruby2
Programming languages (2)
Github contributions (5)
asurgent/ui
Dec 2019 - Nov 2021
frontend - asurgent portal UI components ⚛️
Contributions:5 releases, 2 reviews, 173 PRs in 1 year 11 months
reactportalvuefrontendui-components
hellotheremike/dotfiles
Jan 2015 - May 2018
Contributions:21 pushes, 1 branch in 3 years 4 months
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