Software engineer / product builder
Joshua Lengfelder
Full-stack builder across Python, Rust, Linux, self-hosting, automation, and AI agents. Strong in diagnostics, systems thinking, growth, and crisis comms. Co-founded Randonautica; engineering/ops work on QTrainer/QTurk.
Looking For
Full-stack roles where systems and people overlap
Best fit: small teams, research tools, internal systems, and work that needs code, diagnostics, growth, and AI agents.
Strengths
- Turning vague requirements into working software
- Diagnosing failures across technical and human systems
- Systems thinking under messy constraints
- Zero-to-one growth and community building
- Crisis communication without losing the plot
- Using AI agents to multiply execution
Operating Range
Selected Work
Randonautica / Randonauts
Created Randonauts and co-founded Randonauts LLC. Helped turn a random-coordinate Telegram experiment into a viral app and early revenue engine: zero to $100k/month, millions of users, TikTok-driven growth. Wikipedia lists me as founder.
QTrainer / QTurk
Built research-tool workflows across Python/Rust, APIs, auth/session logic, Linux self-hosting, diagnostics, and operational fixes.
Ops & Automation
Used code and agents to inspect, isolate, and fix problems across apps, servers, deploys, DNS, content, and support workflows.
Work Fit
I help teams diagnose the real problem, ship the fix, explain it clearly, and keep momentum when the work crosses layers.