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fotis vardikosFV
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fotis vardikos

@fotisvardikos

I build AI data systems and improve Greek-language model accuracy through linguistic evaluation.

Greece
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What I'm looking for

I'm looking to apply my analytical, software engineering, and Greek-language AI evaluation experience to systems that make AI more accurate, accessible, and useful across languages and cultures.

I'm building high-performance C++ systems at Alignerr for large-scale AI data pipelines, evaluation workflows, annotation, validation, and quality control.

At xAI, I help improve Grok’s Greek-language capabilities by reviewing and refining hundreds of outputs across grammar, syntax, vocabulary, idioms, cultural nuance, and conversational naturalness. I work with the Grok team to resolve edge cases and improve accuracy and fluency in real-world Greek scenarios.

I'm also pursuing a Physics degree at Aristotle University of Thessaloniki, bringing a scientific and analytical approach to technology, language, and accessibility.

Experience

Work history, roles, and key accomplishments

Alignerr logoAL
Current

System Software Engineer

Jul 2026 - Present (1 month)

Design, build, and optimize high-performance C++ systems supporting large-scale AI data pipelines and evaluation workflows. Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale. Collaborate with research, data, and engineering teams to support model training and evaluation infrastructure, identifying bottlenecks and edge cases in system and

xAI logoXA
Current

AI Tutor - Greek Language

Nov 2025 - Present (9 months)

Served as dedicated AI Tutor for Greek, directly contributing to the continuous improvement of Grok’s Greek-language capabilities through targeted training and feedback.

Tackled a wide variety of linguistic challenges — including grammar, syntax, vocabulary, idioms, cultural nuances, and conversational naturalness — resulting in measurably higher accuracy and fluency in Grok’s Greek responses.

Self-employed logoSE

Physics Tutor

Apr 2025 - Nov 2025 (7 months)

Taught math and physics to students with a range of learning styles and backgrounds, adjusting explanations and pacing to each student's needs. Built original teaching materials to make abstract concepts concrete and engaging for students at different levels. Used AI tools to help draft lesson materials and explanations, then reviewed and refined the output before using it with students.

VB Automation logoVA

Automation Engineer

Dec 2024 - Apr 2025 (4 months)

Contributed to structured, step-by-step project execution within a small engineering team. Wrote and debugged code in C++ and Python to support automation and problem-solving tasks. Used SolidWorks for design and modeling as part of the project workflow.

Education

Degrees, certifications, and relevant coursework

Aristotle University of Thessaloniki logoAT

Aristotle University of Thessaloniki

Bachelor's Degree, Physics

2022 - 2027

Pursuing a Bachelor's degree in Physics with an expected completion in 2027.

AA

Aristotle University of Thessaloniki (AUTH)

Bachelor's Degree, Physics

2022 - 2027

AA

Aristotle University of Thessaloniki (AUTH)

2022 - 2027

Tech stack

Software and tools used professionally

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