Denis Knaack

As a Senior Software Architect with over 20 years of experience, I bridge the gap between deep backend engineering and modern frontend technologies.

My portfolio spans the entire spectrum of software development: from supporting agile startups to architecting complex systems for established companies.

I deliver small, medium, and large-scale projects, consistently optimized for performance and scalability.

Throughout this process, I guide every step with the highest precision – from the first line of backend API to the final digital product.

1. 2015 — Present

   Senior Software Developer KNAACK.IT

   Self-employed as Software Architect and Full-Stack Developer. Development of web applications, APIs and cloud solutions for various clients. Consulting in software architecture, DevOps and modern web technologies.

   • .NET
   • Javascript/Typescript
   • Postgresql
2. 2016 — 2021

   CTO Co-Founder CUESIC Solutions GmbH

   I led the technological strategy and architecture. Patenting a logic for automated analysis of complex media formats and music recognition for generating GEMA reports.

   • .NET
   • Typescript
   • Electron
3. 2012 — 2015

   Software Development Professional Omniga GmbH & Co. KG

   Development of proprietary shop systems. Implementation of new features including checkout processes, member areas, and payment provider integrations.

   • .NET
   • PHP
   • Microsoft SQL Server
4. 2011 — 2012

   Senior Manager Software Development SmilingBits GmbH & Co. KG

   Technical design and implementation of complex e-commerce projects. Responsible for architecture decisions and performance optimization.

   • .NET
   • PHP
   • Microsoft SQL Server
5. 2008 — 2011

   Manager Software Development SmilingBits GmbH & Co. KG

   Migration of legacy systems to modern .NET architectures. Developed and optimized shop systems serving hundreds of thousands of end customers.

   • Cold Fusion
   • .NET
   • PHP
   • Microsoft SQL Server
6. 2003 — 2008

   Manager Software Development GoNamic GmbH

   Development of e-commerce platforms using Cold Fusion and PHP. Introduced .NET technologies to modernize the system landscape.

   • Cold Fusion
   • .NET
   • PHP
   • Microsoft SQL Server
7. 2000 — 2003

   IT Specialist Apprenticeship HIW Software Solutions

   Apprenticeship as IT specialist with focus on application development. Learning the fundamentals of software development and practical application in client projects.

   • Borland Delphi
   • PHP
   • Microsoft SQL Server

• Fintech Foundation: API 1.0 Architecture

  Building the technological foundation for a startup. High-availability REST API, PCI-DSS compliant processes, and microservices.

  • C#
  • .NET Core
  • MS SQL
  • REST API
  • Azure
• Self-Optimizing ML Pipeline (AutoML)

  Development of a framework for automated feature selection, model validation, and cross-platform deployment via ONNX.

  • Python
  • LightGBM
  • ONNX
  • C#
  • System.ML
• Modern Web & GraphQL Consulting

  Architecture consulting for replacing monolithic REST structures with scalable GraphQL federations.

  • GraphQL
  • Node.js
  • TypeScript
  • React
  • PostgreSQL
  • Apollo
• Desktop Applications with JavaScript

  Cross-platform desktop applications with Electron and TypeScript.

  • Electron
  • TypeScript
  • Node.js
  • React
  • C#
  • IPC
• CI/CD & DevOps Automation

  Transformation of manual release processes into fully automated pipelines using Docker and Kubernetes.

  • GitHub Actions
  • GitLab CI
  • Docker
  • Kubernetes
• Portfolio Website knaack.it

  Development of a high-performance portfolio site using a modern web stack, optimized for Edge deployment.

  • Astro 5
  • TypeScript
  • Tailwind CSS
  • Cloudflare