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Marko ŽivićMI
Open to opportunities

Marko Živić

@markozivic

Senior AI/LLM Engineer and Tech Lead. Production AI on real data. .NET, TypeScript, Azure.

Serbia
Message

What I'm looking for

Senior AI/LLM engineering or technical lead work on a product with real users and data. The problems I want: LLM features that have to be right, not just demo well. Retrieval and agents over production databases, evaluation that gates every model or prompt change, and the platform work that keeps it shippable.

Fully remote from Serbia (CET), contract or full-time.

I build AI systems that hold up in production, and I check their work before anyone else has to.

Ten years in software, from developer to tech lead to founder. Four of those years were on GitHub's developer platform as a vendor contractor. First I led the team of six that owned the setup actions (setup-node, setup-python, setup-dotnet, setup-go, setup-java) used in millions of CI pipelines. Then, as Codespaces Tech Lead, I owned CI/CD and infrastructure as code for environment provisioning and designed AI agents that converted and validated infrastructure templates behind automated compliance gates.

As IBM QMF Product Owner through Teracloud, I designed the AI integration for a rebuild over a Fortune 500 database: agents inside the client's firewall so the data never left it, and a metadata layer that let the AI build custom reports on a schema it had never seen.

Today I work as a Senior AI/LLM Engineer on a production LLM product, and I run my own company, where I built EditWise, a multi-tenant SaaS on .NET 10, Next.js and Azure. I rebuilt its backend with an AI pipeline I designed: the spec as data, expert skills that carry my architecture rules, a check after every stage, AI code review on every pull request. First full pass in about a week, against a six-month estimate by hand.

Looking for senior AI/LLM engineering or technical lead roles, fully remote from Serbia.

Experience

Work history, roles, and key accomplishments

Reunion Marketing logoRM
Current

Senior AI/LLM Engineer

Sep 2026 - Present (2 months)

Production LLM engineering on a US automotive marketing agency's AI assistant and reporting product for its dealer clients.
Model upgrades gated by offline paired evaluation, with the pass rule fixed before the runs.
Work on the tool-using agent loop, per-model request settings, tracing and answer quality.

OCTRA (OneCodeToRuleAll DOO) logoOD
Current

Founder and Principal Engineer

OCTRA (OneCodeToRuleAll DOO)

Apr 2020 - Present (6 years 7 months)

Built EditWise, a multi-tenant SaaS for video and creative agencies, in production with paying customers: review and approval, revision rounds, projects, time tracking, invoicing, client portals and an AI assistant over live data.

Rebuilt it as v1.1 with an AI pipeline I designed: spec as data, expert skills carrying my architecture rules, a check after every generation stage.

FC
Current

Independent Full-Stack Developer

Freelance clients

Jan 2018 - Present (8 years 10 months)

Completed 15+ e-commerce and full-stack builds, from landing pages to multi-vendor marketplaces, with payment, shipping, and inventory integrations.

RO

Senior .NET Developer

RokoLabs

Jul 2022 - May 2023 (10 months)

Performed frontend-heavy fintech work for a major asset manager, including DevOps tasks and a Node.js project.

IR

Senior Full-Stack Developer

IM Republic

Dec 2021 - Jul 2022 (7 months)

Sole developer, later with one junior, on a cognitive-testing e-commerce product in .NET and JavaScript.

Crayon logoCR

Senior .NET Developer, promoted to Tech Lead

Nov 2019 - Nov 2021 (2 years)

Tech lead on a greenfield ASP.NET Zero platform for global software-licence distribution, including pricing, inventory, orders, and multi-channel sales on Azure microservices with REST APIs, OAuth, RBAC, and reporting dashboards.

ES

.NET Developer, promoted to Tech Lead

EXLRT South

Oct 2018 - Nov 2019 (1 year 1 month)

Promoted within months to lead five developers on Kaiser Permanente's real-time ER intake and patient-routing platform, including live updates over WebSockets, routing schema, and a WebForms to ASP.NET Core migration.

Atomia logoAT

Junior .NET Developer

Atomia

Jun 2016 - Feb 2018 (1 year 8 months)

Worked on a cloud hosting platform in ASP.NET MVC, domain purchasing, and a custom e-commerce build for a Dutch client.

SENIS AG logoSA

Electrical Engineer

SENIS AG

May 2016 - Jan 2017 (8 months)

Worked with LabVIEW, robotic eddy-current mappers, and electrical device design.

Education

Degrees, certifications, and relevant coursework

Faculty of Electrical Engineering, University of Niš logoFN

Faculty of Electrical Engineering, University of Niš

Master of Science, Automation and System Control

2016 - 2017

Activities and societies: Best student in class; best master's thesis of the generation

Completed a Master of Science in Automation and System Control, graduating as the best student in class and earning the best master's thesis of the generation.

Faculty of Electrical Engineering, University of Niš logoFN

Faculty of Electrical Engineering, University of Niš

Bachelor of Science, Automation and System Control

2012 - 2016

Activities and societies: Best student in class; scholarship holder from year two

Completed a Bachelor of Science in Automation and System Control, graduating as the best student in class and holding a scholarship from the second year.

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