Josef Löfgren Cullhed
Software Developer & Entrepreneur

Software developer and entrepreneur working in software in various forms since 2009. I build and lead web and security products end to end — from founding and growing my own companies to leading development for enterprise endpoint security. My background spans full-stack web development, SEO, freelance marketplaces, endpoint security and financial data tooling.

Contact
linkedin.com/in/josef-cullhed

Lead Developer & Project Lead · Ensure Endpoint Technologies Inc.
2016 – Present
Consultant lead developer and project lead for an endpoint posture checking application that secures third-party endpoints in enterprise environments. Responsible for technical direction and delivery of the product.

Founder · Mercurius Data · mercuriusdata.com
2023 – Present
Building a stock screener for filtering and analysing equities. Sole developer covering data pipeline, backend and frontend.

Founder · MeritCrowd AB · boostcontent.com
2014 – 2023
Founded and built a freelance platform connecting clients with writers and translators, focused mainly on SEO content. The platform took off in 2016 and ran as a successful business until 2023, when generative AI reshaped the content market.

Web Developer · Consultant
2010 – 2015
Worked as a consultant on a range of web projects, delivering full-stack websites and applications for various clients.

Web Developer · Trendvision (trendvision.se)
2009
Built a fashion website — my first work in web development.

Mathematics · Uppsala University
2007 – 2009

Full-stack development · Endpoint & enterprise security · · Backend & data pipelines · Product & technical leadership · Entrepreneurship