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Nikos KyriazisNK
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Nikos Kyriazis

@nikoskyriazis

Senior ML/AI Engineer at Sthenos AI who developed RAG products and distributed LLM inference solutions for defense.

Greece
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At Sthenos AI, part of EFA group, I owned RAG products from architecture through implementation, deployment, and optimization. I also deployed distributed LLM inference with Ray Serve on Kubernetes and developed predictive maintenance models using IoT sensor data.

At Engys, I built PyTorch models and ML pipelines for automotive applications in the Upscale project, which aimed to reduce EV development time. I also developed performance-critical C++ simulation software and parallel code for HPC systems; earlier, I worked on CFD solvers and computational methods at City St George’s, University of London and other research organizations.

Experience

Work history, roles, and key accomplishments

SA

Senior ML/AI Engineer

Sthenos AI

Sep 2025 - Jul 2026 (10 months)

Designed and deployed scalable ML and Agentic AI solutions on distributed infrastructure for defense, including microservice architectures, distributed LLM inference with Ray Serve on Kubernetes, predictive maintenance models, and RAG products from architecture to optimization. Mentored engineers on software engineering best practices.

EN

Senior Software Engineer/ML Engineer

Engys

Nov 2019 - Aug 2025 (5 years 9 months)

Led ML/AI initiatives integrating AI with CAE for EV development, building ML pipelines, deep learning models in PyTorch, and autoencoders for shape parameterization. Designed performance-critical C++ components for physics simulations and optimized parallel code for HPC systems.

TM

Visiting Researcher

Technical University of Munich

Oct 2016 - Dec 2016 (2 months)

Implemented a multiphase solver in OpenFOAM for modelling liquid, vapour and gas phases.

EU

Teaching Assistant

Embry-Riddle Aeronautical University

Jan 2013 - Dec 2014 (1 year 11 months)

Supervised wind tunnel experiments and taught in the Experimental Aerodynamics Lab.

Education

Degrees, certifications, and relevant coursework

City St George’s, University of London logoCL

City St George’s, University of London

PhD, Mechanical Engineering

2015 - 2018

PhD in Mechanical Engineering with thesis on simulation of cavitation using compressible flow solvers.

Embry-Riddle Aeronautical University logoEU

Embry-Riddle Aeronautical University

Master of Science, Aerospace Engineering

2013 - 2014

Grade: 3.71/4.0

MSc in Aerospace Engineering with thesis on a continuous/discontinuous FE method for 3-D incompressible flow equations. Overall GPA: 3.71/4.0.

University of Patras logoUP

University of Patras

Diploma, Mechanical Engineering & Aeronautics

2006 - 2011

Grade: 8.02/10.0

Five-year Diploma in Mechanical Engineering & Aeronautics with thesis on numerical solution of the linear convection-diffusion equation using discontinuous Galerkin methods. Overall Grade: 8.02/10.0.

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