Usman Khan

AI & Full-Stack Engineer

I build real-world software products — from intelligent AI systems and RAG pipelines to scalable full-stack applications designed for production use.

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Work Experience

PersonalClientCare (PCC)

Full-Stack Engineer (Werkstudent)

Sep 2025 — Present

Developed user-facing features and backend automation for a production application used in real workflows.
Designed and implemented backend APIs and data pipelines to support intelligent automation.
Shipped scalable, production-ready improvements in a fast-paced engineering environment.

LeadLane

Founding Engineer (Werkstudent)

2025 — MVP Engagement

Built the AI-powered MVP of a B2B sales automation platform from concept to production.
Designed and implemented RAG pipelines using vector databases and LLMs (LLaMA 3, Mistral).
Improved outbound sales by ~70% and operational efficiency by ~80%.
Engineered low-latency AI pipelines delivering responses in under 3 seconds.

Featured Projects

Context

A fast, RAG-first AI chat platform inspired by t3.chat, built for document and YouTube-based knowledge retrieval with a strong focus on latency and UX.

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CourseVault

A full-stack platform for university students to discover, share, and rank study resources, deployed on Vercel as a complete production system.

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SwissInsight

Natural language query system for Swiss startup data using SPARQL and semantic search

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DreamTransport

Public transport optimization system for Neumarkt i.d. OPf. to improve bus routes and stops using passenger data, punctuality analysis, and mathematical optimization algorithms.

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Klebl

Hackathon-winning AI system for automated architectural blueprint analysis using YOLOv11 and Gemini, reducing manual review time by ~90%.

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Voice Oasis

Hackathon-winning real-time voice enhancement and conversational memory system with speaker recognition, designed under strict latency and privacy constraints.

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Offline_AI

An offline-first Android application enabling on-device LLM inference and agent workflows, focused on privacy, reliability, and low-latency execution.

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MHack

A desktop AI assistant capable of browsing, code execution, and task automation through agent-based tool orchestration.

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Hackathons

MITTELSTAND HACKATHON

Winner (1st Place)

Neumarkt in der Oberpfalz, Germany

Klebl GmbH challenge. Built Klebl AI. Used YOLOv11 and Gemini API to analyze construction blueprints, reducing analysis time by 90%.

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{Tech: Europe} AI Hackathon

3rd Place

Munich, Germany

Built UdS OP (Universal Desktop Assistant). AI assistant capable of code execution, file operations, browsing, and searches.

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{Tech: Europe} AI Hackathon screenshot 1

START HACK 2025

3rd Place

St. Gallen, Switzerland

Biggest one I've ever attended. Co-developed VoiceOasis, a real-time, privacy-focused voice AI for robotics featuring speaker recognition and conversational memory.

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SwissHacks

2nd Place

Zurich, Switzerland

Biggest one I've ever attended. Built SwissInsight — an AI-driven startup analytics platform that turns Swiss startup data into insights through natural language.

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Live Demo

Servus AI Summer

2nd Place

Neumarkt in der Oberpfalz, Germany

DreamTransport: Optimization system for Neumarkt i.d. OPf. to improve bus routes using passenger data, punctuality analysis, and mathematical algorithms.

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About Me

Hi, I’m Usman. I’m a Computer Science student at Universität des Saarlandes and a working AI & Full-Stack Engineer. I focus on building production-grade software — not just models or demos — but complete systems that handle real constraints like latency, privacy, and scalability. My work spans AI-powered products, real-time voice and vision systems, offline-first applications, and full-stack platforms deployed in production. I enjoy working in early-stage and fast-moving environments, where ideas quickly turn into shipped products.