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Hi, I'm Stoyan Valchev, a machine learning and cybersecurity graduate from Sofia, Bulgaria. I enjoy turning data into actionable insights and building robust ML pipelines that help teams make informed decisions.\n\nIn my recent roles at Espirit Engineering, I designed data-driven solutions, collaborated with senior data scientists, and contributed to testing automotive software. I’m proficient in Python, SQL, AWS, and popular ML frameworks, and I’m excited to apply my skills to new challenges in software, data, or AI projects.…Hi, I'm Stoyan Valchev, a machine learning and cybersecurity graduate from Sofia, Bulgaria. I enjoy turning data into actionable insights and building robust ML pipelines that help teams make informed decisions.\n\nIn my recent roles at Espirit Engineering, I designed data-driven solutions, collaborated with senior data scientists, and contributed to testing automotive software. I’m proficient in Python, SQL, AWS, and popular ML frameworks, and I’m excited to apply my skills to new challenges in software, data, or AI projects.

Stoyan Valchev

Data Scientist, AI Engineer, AI Developer, +3

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Hi, I'm Stoyan Valchev, a machine learning and cybersecurity graduate from Sofia, Bulgaria. I enjoy turning data into actionable insights and building robust ML pipelines that help teams make informed decisions.\n\nIn my recent roles at Espirit Engineering, I designed data-driven solutions, collaborated with senior data scientists, and contributed to testing automotive software. I’m proficient in Python, SQL, AWS, and popular ML frameworks, and I’m excited to apply my skills to new challenges in software, data, or AI projects.…Hi, I'm Stoyan Valchev, a machine learning and cybersecurity graduate from Sofia, Bulgaria. I enjoy turning data into actionable insights and building robust ML pipelines that help teams make informed decisions.\n\nIn my recent roles at Espirit Engineering, I designed data-driven solutions, collaborated with senior data scientists, and contributed to testing automotive software. I’m proficient in Python, SQL, AWS, and popular ML frameworks, and I’m excited to apply my skills to new challenges in software, data, or AI projects.

Available to hire

Hi, I’m Stoyan Valchev, a machine learning and cybersecurity graduate from Sofia, Bulgaria. I enjoy turning data into actionable insights and building robust ML pipelines that help teams make informed decisions.\n\nIn my recent roles at Espirit Engineering, I designed data-driven solutions, collaborated with senior data scientists, and contributed to testing automotive software. I’m proficient in Python, SQL, AWS, and popular ML frameworks, and I’m excited to apply my skills to new challenges in software, data, or AI projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

German

Advanced

Spanish; Castilian

Beginner

Bulgarian

Fluent

Work Experience

Data Scientist at Espirit Engineering

May 1, 2023 - October 1, 2024

Maintained clustering solutions and analyzed ML outcomes to support decision-making. Built Python data pipelines and visualizations (AWS QuickSight) for business insights. Collaborated on model evaluation and integration with senior data scientists.

Automotive Software Tester at Espirit Engineering

May 1, 2023 - October 1, 2024

Designed and executed PIL/HiL/SiL tests for engine control and driver assistance systems.