Engineering Services

Build it right.
Build it secure.

JefeWorks LLC is a boutique engineering studio with 25+ years of systems and software experience. We build AI platforms, harden infrastructure, automate pipelines, and ship real software -- not slide decks.

25+ Years Experience
20+ Active Repositories
30+ Production Services
8 Languages in Production

What JefeWorks Builds

We work across the full stack -- from bare-metal infrastructure to polished user interfaces. Here's what we're good at.

AI Platforms & Integrations

Custom AI systems that run on your hardware, not someone else's cloud. RAG pipelines, local LLM inference, image generation, voice synthesis, and agent orchestration. We build AI that you actually own.

LLM Integration RAG Pipelines GPU Inference Agent Systems

Infrastructure & Automation

Docker orchestration, CI/CD pipeline design, monitoring stacks, and server hardening. We automate the tedious stuff so your team can focus on building. On-prem, cloud, or hybrid.

Docker Jenkins CI/CD Agent Orchestration Linux Admin Windows Monitoring

Security Hardening

End-to-end encryption implementations, network security audits, certificate authority setup, reverse proxy hardening, and secrets management. Security as a foundation, not an afterthought.

E2E Encryption Pen Testing Network Security PKI / TLS Auth Systems

Full-Stack Applications

Web applications, desktop clients, and mobile apps. React frontends, Node/Python backends, PostgreSQL, Redis, WebSocket real-time systems. We build for web, desktop, and Android.

React / TypeScript Python / FastAPI PostgreSQL WebSocket

IoT & Home Automation

Sensor networks, environmental monitoring, voice-controlled assistants, and smart home integrations. Custom hardware-software bridges that work without cloud dependencies.

IoT Sensors Voice Control Local-First Kotlin / Android

Streaming & Content Pipelines

Real-time content generation, OBS integration, overlay systems, and AI-powered streaming tools. Automated content pipelines from prompt to production.

OBS / Streaming Content Gen Real-Time Overlays

25+ Years Building Systems

From enterprise trading floors to personal AI labs. Real depth across the stack.

Current Role

Senior Systems Engineer

Major Financial Trading Firm

Enterprise-scale systems engineering in a high-performance trading environment. The kind of place where uptime isn't negotiable and latency is measured in microseconds.

The work at JefeWorks comes from the same mindset as the day job: build things that are reliable, secure, and actually work under pressure. The difference is that here, we get to pick the problems and the tools.

Two and a half decades of building and breaking systems means we've already made most of the expensive mistakes. We know when to use the boring, proven technology and when something genuinely needs a custom solution.

Languages

Python TypeScript Go C++ Kotlin JavaScript PowerShell Shell/Bash

Infrastructure

Docker Jenkins CI/CD Linux Admin Nginx / Traefik PostgreSQL Redis Prometheus Grafana

AI / ML

LLM Inference RAG / Embeddings ComfyUI / Diffusion TTS / STT NVIDIA CUDA Ollama / vLLM

Security

E2E Encryption PKI / TLS OAuth / OIDC Network Hardening Secrets Management

Engagement Types

Every project is different. Here's what a typical engagement looks like.

What you should know

One-person shop, by design.

JefeWorks is a solo LLC with AI-augmented development. You work directly with the engineer who writes the code. No account managers, no handoffs, no telephone game.

We say no to bad fits.

If a project isn't in our wheelhouse, we'll tell you. If someone else can do it better or cheaper, we'll say that too. Reputation matters more than revenue.

Working code, not pitch decks.

Everything on the JefeWorks product page is real, running software. 20+ repos, 30+ Docker services, automated CI/CD. We ship.

Start a Conversation

Tell us what you're working on. No commitment, no sales pitch -- just a conversation about whether we can help.

Opens your email client with the details pre-filled. We typically respond within 24 hours.

Prefer email?

jeff@jefeworks.com
Entity JefeWorks LLC
Location Illinois, USA
Founded 2026

See our work

Browse working products and engineering notes on the main site.

View Products