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Zebedee Ejike KorieZE

Zebedee Ejike Korie

Systems Architect & Backend Engineer

€600/day
Duisburg, DE
8-15 years

Average response time: 1 hour

About Zebedee Ejike

Hi, I'm Zebedee. I am a backend engineer and systems architect based in Duisburg, Germany.

I specialize in keeping software systems secure, performant, and bug-free. I don't just write code; I build automated workflows and deep-dive into architectures to solve complex problems quickly and reliably.

What I do best:
Urgent Bug Fixing & Debugging:Drop me into a legacy or modern codebase, and I will isolate the root cause, implement a fix, and write automated tests to ensure it never breaks again.
Security & Performance Audits:I conduct deep-dive architectural reviews to identify vulnerabilities, memory leaks, and bottlenecks, delivering actionable reports alongside the fixed code.
Backend & API Architecture:Building robust, scalable APIs and server infrastructure using Node.js, TypeScript, and Python.

My Approach:
I utilize advanced, custom-built code-analysis tooling and automated pipelines. This allows me to navigate and audit large codebases significantly faster than traditional manual reviews, ensuring you get production-ready results with rapid turnaround times.

Communication is key. I provide clear, concise updates without technical fluff so you always know exactly what is happening with your infrastructure.

If you have a critical crash, need a security review, or want to scale your backend, send me a message. Let's get it fixed.
  • English

    Native or bilingual

  • German

    Fluent

  • Afrikaans

    Fluent

Remote only
Primarily works remotely

Experience

  • Independent / Freelance
    Systems Architect & Backend Engineer
    July 2025 - Today (1 year)
    Duisburg, Germany
    Specialised in designing and maintaining autonomous backend systems and developer tooling.

    Key Projects & Achievements:
    • Built and deployed a custom autonomous agent architecture (TypeScript/Node.js) that dynamically routes LLM models to optimise API costs and latency.
    • Developed an automated codebase indexing and RAG (Retrieval-Augmented Generation) pipeline, allowing for rapid code audits and context-aware bug fixing across large repositories.
    • Architected secure, self-healing server environments using Git-based rollback mechanisms, automated cron monitoring, and shell execution safety nets.
    • Implemented continuous integration workflows, automated Git hooks, and Docker containerization for client project isolation.
    • Conducted deep security and performance audits on backend systems, identifying vulnerabilities and memory leaks with automated background processing.

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