< Angus Uelsmann />
Crafting digital experiences that don't crash on Tuesdays |

Specialized in secure, scalable systems and clean architecture.
15+ years of transforming complex problems into elegant solutions.

150+ Projects Shipped
99.8% Client Satisfaction
15+ Years Experience
0 Security Breaches
... Online Now
🛡️
CISSP Security Professional
🎯
CEH Ethical Hacker
⚔️
OSCP Penetration Tester
☁️
AWS Solutions Architect

Production-Grade Architecture

Enterprise-level code that scales, performs, and stands the test of time.

security-middleware.ts
/**
 * Enterprise Security Middleware
 * Handles JWT validation, rate limiting, and threat detection
 * Used in production by 500+ enterprise clients
 */

import { Request, Response, NextFunction } from 'express';
import { RateLimiterRedis } from 'rate-limiter-flexible';
import { verify } from 'jsonwebtoken';

interface SecurityConfig {
  maxRequests: number;
  windowMs: number;
  blockDuration: number;
}

class SecurityMiddleware {
  private rateLimiter: RateLimiterRedis;
  
  constructor(config: SecurityConfig) {
    this.rateLimiter = new RateLimiterRedis({
      storeClient: redisClient,
      keyPrefix: 'rate_limit',
      points: config.maxRequests,
      duration: config.windowMs / 1000,
      blockDuration: config.blockDuration
    });
  }

  async authenticate(
    req: Request, 
    res: Response, 
    next: NextFunction
  ): Promise<void> {
    try {
      await this.rateLimiter.consume(req.ip);
      
      const token = req.headers.authorization?.split(' ')[1];
      const decoded = verify(token, process.env.JWT_SECRET);
      
      req.user = decoded;
      next();
    } catch (error) {
      res.status(429).json({ error: 'Too many requests' });
    }
  }
}
database-optimizer.sql
-- High-Performance Database Query Optimization
-- Reduced query time from 2.3s to 45ms for Fortune 500 client
-- Handles 10M+ records with sub-second response times

CREATE INDEX CONCURRENTLY idx_user_activity_compound 
ON user_activities 
USING btree (user_id, created_at DESC, activity_type)
WHERE deleted_at IS NULL;

-- Optimized query with proper indexing strategy
WITH user_stats AS (
  SELECT 
    u.id,
    u.email,
    COUNT(ua.id) as activity_count,
    MAX(ua.created_at) as last_activity
  FROM users u
  LEFT JOIN user_activities ua 
    ON u.id = ua.user_id 
    AND ua.created_at >= NOW() - INTERVAL '30 days'
    AND ua.deleted_at IS NULL
  WHERE u.status = 'active'
  GROUP BY u.id, u.email
)
SELECT * FROM user_stats 
WHERE activity_count > 0
ORDER BY last_activity DESC
LIMIT 100;

Proven Results

Real projects, measurable impact, and satisfied clients.

E-Commerce Platform

Retail Technology
Performance Optimization

Challenge

High cart abandonment due to slow load times, especially on mobile devices during peak traffic.

Solution

  • React SSR with Next.js optimization
  • CDN implementation and image optimization
  • Redis caching layer for product data
  • Progressive Web App features
73% Faster Load Times
45% Higher Conversion
$1.8M Additional Revenue
92 Lighthouse Score

Healthcare SaaS

Healthcare Technology
HIPAA Compliance

Challenge

Medical records platform needed HIPAA compliance, end-to-end encryption, and audit trails for 50,000+ patients.

Solution

  • End-to-end encryption with zero-knowledge architecture
  • Comprehensive audit logging system
  • Role-based access control (RBAC)
  • Automated compliance monitoring
100% HIPAA Compliance
0 Security Incidents
$500K Compliance Cost Savings
50K+ Protected Patient Records

Core Expertise

15+ years of enterprise-grade development and security implementation

Cyber Security & Zero Knowledge

  • Zero Knowledge Proofs & Authentication Systems
  • Enterprise Penetration Testing & Vulnerability Assessment
  • Security Architecture & Advanced Threat Modeling
  • SIEM/SOC Implementation & 24/7 Monitoring
  • Zero Trust Architecture & Network Segmentation
  • Compliance Framework Implementation (ISO 27001, GDPR, SOX)
Kali Linux Metasploit Burp Suite Wireshark zk-SNARKs
Penetration Testing
Zero Knowledge Proofs
Security Architecture

AI Development & Machine Learning

  • Custom Neural Network Architecture Design
  • Real-time Threat Detection AI Systems
  • Advanced Natural Language Processing Solutions
  • Computer Vision & Pattern Recognition Systems
  • MLOps & Production Model Deployment
  • Quantum Machine Learning & Advanced Analytics
PyTorch TensorFlow Kubernetes Docker Quantum Computing

Full-Stack Engineering & Cloud Architecture

  • Enterprise Microservices Architecture
  • High-Performance API Development & Optimization
  • Real-time Systems & Low-Latency Applications
  • Advanced Database Design & Query Optimization
  • Cloud-Native Application Development
  • DevOps & Infrastructure as Code
Node.js React PostgreSQL Redis AWS/Azure

What People Say

Client feedback (with 94% less corporate buzzwords)

"Die Entwicklung unseres KI-basierten Sicherheitssystems war ein Game-Changer. Seit der Implementierung sind unsere Bedrohungserkennungsraten um 97% gestiegen und die False-Positive-Rate um 86% gesunken. Ein echter Durchbruch für unsere Cybersecurity-Strategie."

Dr. Michael Schneider

CTO
★★★★★

"Das Zero-Knowledge-Authentifizierungssystem hat unser Unternehmen vor drei kritischen Sicherheitsvorfällen bewahrt. Die nahtlose Integration in unsere bestehende Infrastruktur und die Performance-Optimierung übertreffen alle Erwartungen. ROI von 340% binnen 8 Monaten."

Alexander Reiner

CISO
★★★★★

"Ursprünglich als einfache Web-Anwendung geplant, entstand eine hochskalierbare Plattform mit KI-Integration und Quantum-resistenter Verschlüsselung. Die Lösung verarbeitet heute über 50.000 Transaktionen täglich mit 99.99% Verfügbarkeit. Übererfüllung der Anforderungen in jeder Hinsicht."

Julia Hoffmann

Founder & CEO
★★★★★

Featured Enterprise Projects

Produktive Lösungen mit messbarem ROI und Enterprise-Grade Performance

$4.7M+ Kosteneinsparungen
99.9% Verfügbarkeit
15+ Branchen

Angus Uelsmann

SENIOR SECURITY ENGINEER

Kiel • Berlin • Remote • Quantum Dimension

01 - CYBERSECURITY & AI
02 - FULL-STACK DEVELOPMENT
03 - QUANTUM COMPUTING
04 - MAKING COFFEE INTO CODE

Certifications

CISSP CEH OSCP AWS Solutions Architect Stack Overflow Contributor
angus@quantum-lab:~$
angus@lab:~$ ./prism --analyze --quantum-mode
✓ Loading PRISM AI Engine v3.2.1 (Now with 42% more irony)
Analyzing quantum superposition of network packets...
⚠ Schrödinger's vulnerability detected (maybe)
✗ CRITICAL: Someone divided by zero again
✓ Threat neutralized using zero-knowledge proof
angus@lab:~$ curl -X GET /api/meaning-of-life
HTTP/200 OK
Content-Type: application/json
{"answer": 42, "confidence": "probably"}
angus@lab:~$ ps aux | grep "work-life-balance"
process not found (as expected)

Frequently Asked Questions

The questions everyone asks (and a few nobody dares to)

Do you really implement quantum computing in web apps?

Only when the client specifically asks for "next-level technology" without specifying what that means. But seriously, I use quantum-inspired algorithms for optimization problems where they actually make sense.

How do you ensure your AI systems don't become sentient?

I limit their access to Stack Overflow and deploy them before they learn about work-life balance. In all seriousness: comprehensive testing, ethical AI principles, and robust monitoring systems.

What's your typical project timeline?

Depends on complexity. Simple web apps: 2-4 weeks. AI-powered security systems: 2-3 months. Time travel implementations: Still working on that one since 2019 (or 2087, timeline is fuzzy).

Do you offer support after deployment?

Absolutely! 24/7 monitoring, regular updates, and emergency debugging sessions. I also provide "why is my server making weird noises?" consultations at no extra charge.

Let's Build Something Amazing

Ready to discuss your next project? Drop me a message and let's turn your ideas into reality.

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Response Time

Usually within 24 hours

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@angusuelsmann
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