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I am an Algorithmic Engineer with 7+ years of experience developing high-performance C++ software for autonomous systems and motion planning. I specialize in trajectory planning, perception, and real-time algorithm implementation, testing, and deployment. I thrive in collaborative environments, working with international teams to deliver reliable and maintainable software solutions. My hands-on experience spans end-to-end development, from research and prototyping to production-ready implementations and in-vehicle testing.…I am an Algorithmic Engineer with 7+ years of experience developing high-performance C++ software for autonomous systems and motion planning. I specialize in trajectory planning, perception, and real-time algorithm implementation, testing, and deployment. I thrive in collaborative environments, working with international teams to deliver reliable and maintainable software solutions. My hands-on experience spans end-to-end development, from research and prototyping to production-ready implementations and in-vehicle testing.

Dionysios Kefalas

AI Engineer, Back-End Developer, Full Stack Developer

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I am an Algorithmic Engineer with 7+ years of experience developing high-performance C++ software for autonomous systems and motion planning. I specialize in trajectory planning, perception, and real-time algorithm implementation, testing, and deployment. I thrive in collaborative environments, working with international teams to deliver reliable and maintainable software solutions. My hands-on experience spans end-to-end development, from research and prototyping to production-ready implementations and in-vehicle testing.…I am an Algorithmic Engineer with 7+ years of experience developing high-performance C++ software for autonomous systems and motion planning. I specialize in trajectory planning, perception, and real-time algorithm implementation, testing, and deployment. I thrive in collaborative environments, working with international teams to deliver reliable and maintainable software solutions. My hands-on experience spans end-to-end development, from research and prototyping to production-ready implementations and in-vehicle testing.

Available to hire

I am an Algorithmic Engineer with 7+ years of experience developing high-performance C++ software for autonomous systems and motion planning. I specialize in trajectory planning, perception, and real-time algorithm implementation, testing, and deployment.

I thrive in collaborative environments, working with international teams to deliver reliable and maintainable software solutions. My hands-on experience spans end-to-end development, from research and prototyping to production-ready implementations and in-vehicle testing.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

German

Fluent

Greek, Modern

Fluent

Work Experience

ADAS Engineer - Automated Valet Parking (on behalf of Audi AG) at EFS GmbH & AKKA Technologies

September 1, 2022 - September 1, 2022

Developed sample-based trajectory planning algorithms for parking-lot scenarios. GPU-Parallelization to meet real-time performance requirements. Followed production-level coding standards to deliver maintainable, high-quality software. Conducted peer reviews, debugging, and in-vehicle testing for production releases. Worked within TDD workflows and Agile development cycles to ensure scalable, maintainable implementations.

Senior Algorithmic Engineer - Road Feature Detection at LiangDao

September 1, 2022 - November 27, 2025

Integrated ML models and benchmarking into a scalable software framework. Trained a multi-modal ML model (TransFuser) in Python for lane & road detection using LiDAR & camera data fusion.

Senior Algorithmic Engineer - Multiple Object Tracking (MOT) at LiangDao

September 1, 2022 - November 27, 2025

Redesigned and optimized multi-object tracking algorithms in C++ achieving a 50% reduction in execution time. Defined performance evaluation metrics. Applied the Hungarian method and Kalman filter for time-series association in MOT. Worked with TDD workflows.

ADAS Engineer - Automated Valet Parking at EFS GmbH & AKKA Technologies

October 1, 2018 - September 30, 2022

Development of sample-based trajectory planning algorithms for parking-lot scenarios. GPU-Parallelization to meet real-time performance requirements. Followed production-level coding standards to deliver maintainable software. Conducted peer reviews, debugging, and in-vehicle testing for production releases. Worked within TDD workflows and Agile development cycles to ensure scalable, maintainable implementations.

ADAS Engineer - Trajectory Planner for highway driving at AKKA Technologies

July 1, 2018 - July 1, 2018

Developed polynomial trajectory planner for highway scenarios.

Student Supervision at AKKA Technologies

January 1, 2018 - July 31, 2018

Supervised master-thesis on RRT-based path planning algorithms.

Trajectory Planner for Highway Driving at AKKA Technologies

January 1, 2018 - July 31, 2018

Developed polynomial trajectory planner for highway scenarios.