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Independent software engineer
and real-estate photographer
based in Almere, Netherlands.
Two decades of experience across software engineering, audio DSP, and real-estate photography. Precision and creativity in every project.
I'm Jorn Lemon, a Dutch software engineer and real-estate photographer with roots in multimedia design, music technology, and C++ programming. My career started professionally in 2008 after studying at the HKU, where I built my first audio tools. Including SideKick, a sidechain plugin used in major pop productions, and loudness software that helped shape the EBU R128 broadcast standard. Today I work independently, combining high-performance software development with hands-on real-estate photography through LemonShot.
From DAW plugins heard in chart-topping records to broadcast loudness infrastructure, software built to last and perform at scale.
A battle-tested loudness measurement and correction SDK, ready to integrate into broadcast pipelines, DAWs, and server environments. Built on years of EBU R128 research.
Visit levelapi.dev
Professional real-estate photography combining technical precision with creative vision. AI-assisted editing workflows and fast delivery for estate agents and property owners.
Visit lemonshot.nl
LevelOne, LevelNorm and related broadcast tools developed in cooperation with BeatRig and Grimm Audio. Used internationally in studios, broadcast stations, and professional post-production. The core is still available as LevelAPI.
Get in touch
A pioneering sidechain ducker plugin used across major DAWs and widely adopted in pop music production, including by artists like Afrojack. Created during my studies at the HKU.
Get in touchSoftware I've built has run in broadcast studios, music productions, and server environments internationally.
Contributed to shaping the EBU R128 loudness standard through the ploud working group - software that European broadcasters still rely on today.
SideKick, the sidechain ducker plugin I created during my studies, was picked up by major artists and continued to be a recognisable sound in pop music production for multiple versions.
Developed the first implementation of the freesound.org API in C++ during a research stint at Universitat Pompeu Fabra, later implemented for MaxMSP and Pure Data.
A few things people typically want to know before reaching out. Still have a question? Just drop me an email.
My primary language is C++. I specialise in audio DSP, high-performance computing, plugin development, and backend tooling. I also work in other languages when the project calls for it. If you have a technical challenge that needs a precise, experienced hand, get in touch.
LevelAPI is a loudness measurement and correction library built on years of work with the EBU R128 standard. It's aimed at developers who need to integrate loudness processing into their own applications, plugins, or broadcast infrastructure. Visit levelapi.dev for more details.
I currently handle a lot of assignments in and around Den Haag and am expanding coverage near Amsterdam. If you're an estate agent or property owner in the area and need high-quality interior and architectural photography, head over to lemonshot.nl or send me an email.
I work independently under tlemon.com (formerly Twisted Lemon). I've previously collaborated with partners such as BeatRig and Grimm Audio and am open to both freelance engagements and longer-term co-operations.
I actively incorporate AI into my workflows, from image post-processing in photography to code productivity in software development. That said, I believe quality means keeping everything under exact human supervision. Technology is a tool; craft still matters.
Send me an email via the button below and briefly describe what you need. I'll respond in English or Dutch, whichever you prefer.
Whether it's a C++ tool, audio software, or real-estate photography. Get in touch;
Send me an email