About
I am fourteen, and every claim here links to code.
A developer, engineer and founder who builds software, AI systems, websites, security tooling, hardware experiments and digital products.
How I work
I start from the same question every time: what is happening in this system that nobody can currently see? Then I build the instrument that shows it.
That is why the projects look related even though the languages are not. God Eye shows the planet. NeonDock shows a network. CarbonMesh shows traffic beneath an application. NexusTrace shows a request crossing services. SentinelForge shows an attack surface. Aurelius shows portfolio risk. AtlasVault does the opposite on purpose and makes data invisible.
I work across the whole stack and below it: frontend and backend, LLM applications and agents, defensive security tooling, embedded hardware, and the market systems I run for myself. Five years building, more than two hundred projects.
On AI, plainly
I use AI tooling every day, the same as most working engineers now. I decide the architecture, review the output, debug it and ship it. I also build with it: jp-coding is a native macOS agent that runs across thirteen model providers and verifies each one by forcing a real tool call before it will trust it. The repositories are public and the commit history is open, so you do not have to take my word for any of this.
On being fourteen
It is on this page because it is true, not because it is the point. The work either holds up when a senior engineer opens the repository or it does not. Open one and see.
VerifiedGitHub API
14public repositories→ 14languages shipped→ 13.0 Mbytes of code in public→ 6products live in production→Counts read from the GitHub REST API for github.com/jakobxtb. Byte totals include vendored dependencies in forked work, which is called out where it applies.
- Based inGermany
- WorkingRemote, worldwide
- StatusAvailable
Domains
Six domains. One way of working.
SEC
Cybersecurity & OSINT
- Attack-surface mapping
- Red-team thinking
- OSINT
- Security research
- Endpoint hardening
- Network segmentation
- Zero-trust concepts
- Technical investigations
Shipped: SentinelForge, attack-surface discovery with SSRF guards. AegisFlow, event-driven detection with human approval.
NET
Systems & Networks
- Linux
- Networking
- Infrastructure
- Network analysis
- System architecture
- Security environments
Shipped: CarbonMesh in C++20, metadata only. NeonDock, a deterministic topology simulator. NexusTrace for distributed tracing.
HW
Hardware & Embedded
- Embedded systems
- Electronics
- Raspberry Pi
- RF
- Hardware prototyping
- Custom devices
- Cyberdeck systems
Self-built portable Linux systems: modular hardware, offline capability, and the electronics work behind them.
MKT
Digital Asset Analysis
- Crypto
- Bitcoin
- Memecoins
- Forex
- Market analysis
- Quantitative thinking
- Trading systems
Shipped: Aurelius for VaR, CVaR, drawdown and backtesting. Luxora for market visualisation. Personal practice, not advice.
WEB
Web Engineering
- Frontend
- Backend
- Full-stack
- React
- Next.js
- TypeScript
- Tailwind
- APIs
- Databases
- Performance
Shipped: six live products, plus VantaGrid and ForgePilot. This site is hand-written HTML, CSS and vanilla JavaScript.
AI
AI Systems
- LLM applications
- AI agents
- Automation
- AI APIs
- AI workflows
- RAG
- Prompt engineering
- Integration
Shipped: jp-coding, a native agent across thirteen providers that verifies each with a real tool call. Veltrix, AI reception in production.
Let's build something useful.
Send the problem, not a spec. I reply with an approach and a scope I can hold to.