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Marko ZivicMZ

Marko Zivic

Senior .NET & AI Solution Architect ex-GitHub Lead

€800/day
Zaječar, RS
8-15 years

Average response time: 1 hour

About Marko

I am a senior .NET engineer and solution architect with 9+ years shipping production systems, and for the last stretch I have put AI into real products people use every day.

I led Actions and Codespaces engineering at GitHub and the AI integration for IBM's QMF data platform, a Fortune 500 system. I architected platforms at Euronext and Crayon, and built my own multi-tenant SaaS, EditWise, end to end. Master's in system control, best student in class.

What I build: ASP.NET Core and C# on the backend, Azure underneath, distributed and event-driven architecture in the middle (DDD, microservices, modular monolith, RabbitMQ), and the AI layer on top. The AI layer means LLM integration, RAG over your own data, AI agents and agentic workflows, vector search and embeddings, and MCP, wired into your existing systems and made reliable in production.

I am strongest where senior .NET depth meets applied AI: design the system, ship it, and keep the AI dependable at scale. I work as the lead with a senior team behind me, so I can take a fixed-scope build or a dedicated seat and start in days.

Tell me what you are building or what is stuck, and I will tell you exactly how I would approach it.
  • English

    Fluent

  • Serbian

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • OCTRA (EditWise SaaS + Lumaris Studio)
    FOUNDER & PRINCIPAL ENGINEER
    DIGITAL AND IT
    April 2020 - Today (6 years and 3 months)
    Zaječar, Serbia
    Built EditWise end to end, a multi-tenant SaaS for agencies: ASP.NET Core backend, JS frontend, MSSQL, Azure. Project management, invoicing, time tracking, file versioning, and branded client portals, shipping multiple releases a week. Built an AI virtual project manager into EditWise that reads live agency data, then flags delays, process breakdowns, and deliverables at risk of missing their deadline before anyone on the team notices. Added a natural-language assistant on top of the same data so anyone can ask about project status, statistics, and raw numbers in plain English and get grounded answers, no dashboard required. Architected payment processing, subscription billing, and multi-tenant data isolation. Hired and lead a team of 8 (4 developers, 4 specialists) with code review, CI/CD, and a weekly release cadence.
    AI Integration .NET / .NET Core ASP.NET Core JavaScript Microsoft Azure
  • IBM, QMF Data Platform
    PRODUCT OWNER & AI INTEGRATION LEAD
    DIGITAL AND IT
    May 2025 - January 2026 (8 months)
    Zaječar, Serbia
    Led the design of the AI integration for IBM's QMF data platform rebuild, defining how AI-powered data discovery would work end to end and directing the implementation partner against that design. Architected secure, agent-based communication for querying enterprise data behind corporate firewalls, so AI features could reach the data without ever exposing it. Designed the metadata database structures the discovery layer runs on. Set product roadmap, sprint priorities, and architecture decisions for a Fortune 500 data platform, running a cross-functional team of 9 across Serbia, Greece, and Egypt.
    Java AI Integration product owner Next.js Product design
  • GitHub (via Akvelon and Experis)
    TEAM LEAD, ACTIONS & CODESPACES
    DIGITAL AND IT
    August 2022 - April 2025 (2 years and 8 months)
    Zaječar, Serbia
    Led 5 to 6 senior engineers on GitHub's CI/CD platform, owning priorities, delivery, and stakeholder communication at scale. Designed GitHub Actions workflows and reusable templates that standardized CI/CD across thousands of repositories. Implemented Azure authentication patterns: OIDC federation, Managed Identity, and Service Principals. Authored runbooks and led incident response, with team throughput consistently recognized by GitHub full-time staff. Drove cloud infrastructure optimization for GitHub Codespaces across a TypeScript and Azure codebase.
    Typescript Microsoft Azure Azure DevOps DevOps Team management

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Education

  • MASTERS DEGREE
    Faculty of electrical engineering in Niš
    2017
    MASTERS DEGREE
  • BACHELORS DEGREE
    Faculty of electrical engineering
    2016
    BACHELORS DEGREE

Skill set

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