I'm a frontend developer and interface designer who builds scalable systems from design to production deployment. I specialize in React ecosystems, TypeScript, and design systems that bridge the gap between design and engineering. I own end-to-end feature cycles from user research and prototyping in Figma to shipping performant, accessible interfaces.

Jacob Collen

I'm a frontend developer and interface designer who builds scalable systems from design to production deployment. I specialize in React ecosystems, TypeScript, and design systems that bridge the gap between design and engineering. I own end-to-end feature cycles from user research and prototyping in Figma to shipping performant, accessible interfaces.

Available to hire

I’m a frontend developer and interface designer who builds scalable systems from design to production deployment.

I specialize in React ecosystems, TypeScript, and design systems that bridge the gap between design and engineering. I own end-to-end feature cycles from user research and prototyping in Figma to shipping performant, accessible interfaces.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Swedish
Fluent
English
Fluent

Work Experience

Frontend Developer / Lead Interface Designer (Internship) at ADV-X
January 1, 2024 - January 1, 2025
Led complete design of the company brand and a new visual identity. Built a complete design system and component library with tokens and variables; designed a mobile app from concept to production including UX flows, wireframes, and core feature definitions. Established a design-to-development workflow, reducing implementation time by more than 50%.
Linguistic Quality Analyst / AI Reviewer at RWS Moravia
January 1, 2023 - January 1, 2026
Conducted comprehensive linguistic review and quality assurance of LLM systems including Google Bard AI. Evaluated model outputs and performed prompt engineering testing across Swedish and English languages. Contributed to translation quality workflows and provided feedback influencing model refinement.
Founder / Technical Web Manager at Emmabodakalaset
January 1, 2022 - January 1, 2024
Architected and maintained a festival website serving 5,000+ annual visitors with 99.9% uptime. Implemented comprehensive SEO strategies and performance optimizations achieving 95+ Lighthouse scores. Built scalable content workflows enabling non-technical team members to update the site independently. Integrated ticketing platforms, email marketing tools, and analytics in infrastructure. Managed digital initiatives supporting event operations, marketing, and audience communication.
Producer / Technical Lead at United We Stream SWE
January 1, 2020 - January 1, 2021
Coordinated production pipeline for 12 large-scale streaming events with artists, venues, technical crews, and broadcast partners. Oversaw multi-camera setups, live switching, audio mixing, and streaming infrastructure. Maintained technical stability and production quality across 12+ hour streams.
Technical Support / Stage Crew at FY CAB Eventtechnik
January 1, 2019 - January 1, 2021
Provided technical support and stage crew services for events, enabling robust stage setup and smooth production operations.
Editor & Project Manager at Gatan Röster & Movement
January 1, 2017 - January 1, 2019
Edited and managed projects for cultural initiatives, coordinating teams and timelines to deliver content.
Exhibition Designer at Book & Library Fair
January 1, 2018 - January 1, 2019
Designed exhibition layouts and visual collateral for book and library fair events.
Lead Designer & Frontend Developer (Internship) at ADV-X
January 1, 2024 - January 1, 2025
Led complete design of company branding, established new visual identity and design language. Built complete design system and component library with tokens, variables and theme architecture. Designed mobile app from concept to production including UX flows, wireframes, and core feature definitions. Established design-to-development workflow reducing implementation time by more than 50%.
Technical Support / Stage Crew at FY CAB Event Teknik
January 1, 2019 - January 1, 2021
Provided technical support and managed stage operations for live events, ensuring smooth setup, monitoring, and troubleshooting across shows.
Lead Frontend Developer / Interface Designer (Internship) at ADV-X
January 1, 2024 - January 1, 2025
Led complete design of company branding, established new visual identity and design language. Built complete design system and component library with tokens, variables and the meta-architecture. Designed mobile app from concept to production including UX flows, wireframes, and core feature definitions. Established design-to-development workflow reducing implementation time by more than 50%.
Full-Stack Developer (Portfolio & CMS Projects) at KristinaCollen.se
January 1, 2025 - Present
Delivered full-stack client website and CMS implementations, including a custom headless CMS with Drizzle ORM and email subscription system.
Personal Portfolio Website at Self-Directed
January 1, 2025 - Present
Designed and developed a performance-optimized portfolio site with 100/100 Lighthouse scores. Implemented React service components, dynamic routing, and analytics tracking.
Project Manager at Norra Hisingen Activity Centers
January 1, 2020 - January 1, 2021
Coordinated festival/project operations and stakeholder collaboration for community activity centers.
Editor & Project Manager at Gatans Röster & Movement
January 1, 2017 - January 1, 2019
Edited and managed projects for cultural initiatives and communications.

Education

Frontend Development at Folkuniversitetet
January 1, 2023 - January 1, 2025
International Cultural Project Management at Kulturverkstan
January 1, 2019 - January 1, 2021
Design for Sustainable Development at Malmö University
January 1, 2017 - January 1, 2018
Fashion Design Education at Malmö College
January 1, 2012 - January 1, 2013
Front End Development at Folkuniversitetet
January 1, 2023 - January 1, 2025
Design for Sustainable Development at Malmö University
January 1, 2017 - January 1, 2018
Fashion Design Education at Malmö College
January 1, 2012 - January 1, 2013
Frontend Development at Folkuniversitetet
January 1, 2023 - January 1, 2025
International Cultural Project Management at Kulturverkstan
January 1, 2019 - January 1, 2021
Design for Sustainable Development at Malmö University
January 1, 2017 - January 1, 2018
Fashion Design Education at Malmö College
January 1, 2012 - January 1, 2013
Frontend Development at Folkuniversitetet
January 1, 2023 - January 1, 2025
International Cultural Project Management at Kulturverkstan
January 1, 2019 - January 1, 2021
Design for Sustainable Development at Malmö University
January 1, 2017 - January 1, 2018
Fashion Design Education at Malmö College
January 1, 2012 - January 1, 2013

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Media & Entertainment, Education, Professional Services, Non-Profit Organization, Other