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Filip Gvozdić

@filipgvozdi

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AI Product Engineer building production RAG systems with grounded answers, evaluation, and per-query cost tracking.

Serbia

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At Sportradar, I designed the evaluation framework and acceptance criteria used across five concurrent AI training programmes. I also deployed ML and LLM automation that replaced 70% of manual review, measured against a defined quality bar.

I built InVerba as its sole architect and engineer: a multi-tenant RAG document platform with grounded, cited answers and per-tenant security controls. I also built open-source projects for document Q&A with groundedness scoring and cost tracking, and a multi-agent research workflow with a reviewer quality gate.

Experience

Work history, roles, and key accomplishments

Current

Senior Project Manager, Annotation Operations

Current

Sportradar

Apr 2025 - Present (1 year 7 months)

Built and deployed ML and LLM automation that replaced manual review in the annotation pipeline, reducing manual QA effort by 70%. Designed evaluation frameworks and acceptance criteria, shipped a production ML model for effort forecasting, and built an internal annotation tool that lifted throughput by 300%.

LLM Evaluation Frameworks Acceptance Criteria Review Workflows Inter Annotator Agreement Cost Forecasting Unit Economics Team Leadership Remote Work

Project & QA Manager, Data Labelling

Sportradar

May 2022 - Mar 2025 (2 years 10 months)

Ran data-labelling programmes for computer vision training end to end. Introduced inter-annotator agreement standards and sampling methods, improving dataset consistency and reducing model retraining cycles.

Data Labeling Computer Vision Inter Annotator Agreement Sampling Quality Assurance Project Management

QA Specialist & Trainer

Synergy Sports Technology, LLC

Jan 2013 - Dec 2022 (9 years 11 months)

Set and enforced quality standards for sports-data collection across a distributed contractor team. Built the training and certification programme used to onboard every new specialist.

Quality Assurance Training Certification Sports Data Team Management