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WILLIAM BERNTING

Three tracks: teach AI · dive into legacy · build what you want
(+46) 0706676047
william@bernting.se
linkedin.com/in/williambernting
Gothenburg, Sweden
kendev.se

Intro

I work in three tracks: I teach people how to get started with AI — regardless of age, group, or profession. I dive into legacy systems that misbehave or quietly drive revenue every year. And I build what you actually want — at a fixed price, together with my network.

An internal tool I built at a Fortune 500 company grew organically to 5,000 active users — I ship software people actually use. Strongest in Engineering, with hands-on experience in Product and UX. Reach out and let’s talk about which track fits.

Work History

Frontend Developer
Akka
08/2025 – Present
Gothenburg, Sweden
React, TanStack
Backend Developer (C#)
Hedin IT (part of Hedin Automotive)
03/2025 – 08/2025
Mölndal, Gothenburg
C#, Blazor, Azure, TDD, DevOps
International car dealership & importer
  • A dream match. It all started with a fun get-together with a dev team, which turned into something more... a freelance assignment.
  • Mature methodologies like Test-Driven Development used in 90% of the work resulted in bug-free deliveries.
  • Unified a fragmented development team while also highlighting structural issues within the department.
Software Developer → Tech Lead
Sembo Group
05/2023 – 03/2025
Gothenburg, Sweden (Remote)
React, Next.js, TypeScript, Sanity CMS, Node.js, DevOps
A travel agency on the web
  • Provided personal coaching to the team’s developers, which led them to take more ownership and ask the right questions.
  • Participated in recruitment and onboarding of 4 new team members.
  • Introduced a headless CMS architecture with a content-first strategy that accelerated development in a sustainable way.
  • Highest individual output in an 11-person team — shipped headless CMS, search features, and campaign pages at a rapid pace.
Head of Development / Chief Technology Officer
NetConsult Sweden AB
05/2022 – 05/2023
Gothenburg, Sweden
Angular, Next.js, TypeScript, WordPress, AWS, PHP, DevOps
Web agency
  • Built the dev department: recruited 6 developers/UX professionals within 6 months, from job posting to signed contract.
  • Drove technical strategy across 7 client products in parallel — from maintenance to MVP launches.
  • Delivered results through 10 full-stack developers across 2 teams with tight collaboration between product, engineering, and UX.

Favorite Books

Turn The Ship Around
L. David Marquet
Think Again
Adam Grant

Acknowledgements

"Company Presidential Nomination"

Created an internal work tool at a U.S.-based Fortune 500 company that organically grew to 5,000 active users and significantly boosted productivity among customer support agents.

Traits

Team-builder

Always involved in building truly great teams.

Debugger

Loves complex troubleshooting.

"Legacy Diver"

Has a track record of rescuing legacy codebases when others wanted to rewrite them from scratch.

Skills

Agentic AI DevelopmentTest-Driven DevelopmentNode.jsDevOpsC#ReactNext.jsTypeScriptVueAngularCI/CDProject DeliveryTanStackAstro.js

Work History

Lead Developer
Telia Sverige
02/2021 – 04/2022
Gothenburg, Sweden
Node.js, TypeScript, Angular, Vue, React, Single-SPA, Next.js, AWS, Monorepos
Digital Channels
  • Provided technical knowledge sharing to 14 development teams, primarily for www.telia.se, through weekly hands-on guidance and by building automated tools and platforms.
  • Organized events and facilitated support sessions to strengthen development teams’ ability to deliver high-quality digital services.
  • Maintained and developed a monorepo for 14 development teams in collaboration with a platform team.
Senior Software Engineer
Telia Sverige
08/2020 – 02/2021
Gothenburg, Sweden
Node.js, TypeScript, Angular, Vue, React, Single-SPA, Next.js, AWS, Monorepos
Digital Channels
  • Led the frontend technical transformation for the B2B unit of telia.se, involving a total of 6 development teams.
  • Designed a micro-frontend architecture tailored to the multi-framework setup that aligned with Telia’s technical strategy.
Systems Developer
KITS AB
02/2017 – 08/2020
Gothenburg, Sweden
Node.js, TypeScript, Angular, Vue, React
IT Consultancy
  • Delivered frontend solutions in React, Angular, and Vue for multiple clients.
  • Rescued a legacy codebase: single-handedly rewrote the entire system from a custom framework that didn’t scale, to React.
Team Lead & Tools Developer
Hewlett Packard Enterprise
11/2015 – 12/2016
Gothenburg, Sweden
C#, TypeScript, AutoIt, PHP
IT Services - Operations
  • Built 8 internal tools that boosted productivity — one grew to 5,000 active users and earned a company-wide presidential nomination.
  • Led 10 customer support agents serving the Nordic markets.

Favorite Quote

“It is in the doing of the work that we discover the work that we must do.”
Woody Zuill

Languages

Swedish Native
English Full Professional
Danish Limited Working
Norwegian Limited Working

Education

Upper Secondary, EC/IT
NTI-skolan
2006 – 2009

Community

Teknikcollege Steering Committee Chair
NTI Gymnasiet Kronhus
2018 – Present