I'm David Len -- software developer, financial quant. Nelworks is where I ship code, write about hard problems, and keep track of the experiments that don't fit anywhere else.
Who are you?
I've built trading systems, handled data science stacks, and spent too many hours writing Medium posts that did numbers (top writer in Data Science and Data Driven Investing). I'm restricted by platform's lack of interactive components, so I'm building my own. These days I focus on making genuinely useful software, writing deep dives on technical topics, and collaborating with people who share that bias for building.
What you want?
Short version: build cool things with people who aren't boring. Long version: stay curious, compound skills, and be useful to whoever comes next. If you have a project or mission that aligns, reach out.
Can we work together?
Possibly. I'm selective, but I'm also looking for teams and collaborators who care about the craft. Open source, deep research, experimental products. Alternatively, be a customer to my products.
Links & Contact
The easiest way to reach me is through the channels below. DMs are open on X. Get verified and leave behind good replies to bypass spam filters.