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Hi, I'm Constantin Stipnieks, a Machine Learning Engineer with experience in designing and building core AI systems from the ground up. I've worked extensively with large language models, computer vision, and recommendation systems, always aiming to create scalable and efficient solutions. I'm passionate about leveraging AI to build smart, user-friendly applications that make a real difference. I've had the opportunity to live and study in Germany and South Korea, which has broadened my perspective and fueled my love for learning. Whether it's fine-tuning models or optimizing databases, I enjoy tackling challenging problems with innovative approaches and collaborating with teams to bring ideas to life.…Hi, I'm Constantin Stipnieks, a Machine Learning Engineer with experience in designing and building core AI systems from the ground up. I've worked extensively with large language models, computer vision, and recommendation systems, always aiming to create scalable and efficient solutions. I'm passionate about leveraging AI to build smart, user-friendly applications that make a real difference. I've had the opportunity to live and study in Germany and South Korea, which has broadened my perspective and fueled my love for learning. Whether it's fine-tuning models or optimizing databases, I enjoy tackling challenging problems with innovative approaches and collaborating with teams to bring ideas to life.

Constantin Stipnieks

Developer, AI Engineer, Data Scientist, +2

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Hi, I'm Constantin Stipnieks, a Machine Learning Engineer with experience in designing and building core AI systems from the ground up. I've worked extensively with large language models, computer vision, and recommendation systems, always aiming to create scalable and efficient solutions. I'm passionate about leveraging AI to build smart, user-friendly applications that make a real difference. I've had the opportunity to live and study in Germany and South Korea, which has broadened my perspective and fueled my love for learning. Whether it's fine-tuning models or optimizing databases, I enjoy tackling challenging problems with innovative approaches and collaborating with teams to bring ideas to life.…Hi, I'm Constantin Stipnieks, a Machine Learning Engineer with experience in designing and building core AI systems from the ground up. I've worked extensively with large language models, computer vision, and recommendation systems, always aiming to create scalable and efficient solutions. I'm passionate about leveraging AI to build smart, user-friendly applications that make a real difference. I've had the opportunity to live and study in Germany and South Korea, which has broadened my perspective and fueled my love for learning. Whether it's fine-tuning models or optimizing databases, I enjoy tackling challenging problems with innovative approaches and collaborating with teams to bring ideas to life.

Available to hire

Hi, I’m Constantin Stipnieks, a Machine Learning Engineer with experience in designing and building core AI systems from the ground up. I’ve worked extensively with large language models, computer vision, and recommendation systems, always aiming to create scalable and efficient solutions. I’m passionate about leveraging AI to build smart, user-friendly applications that make a real difference.

I’ve had the opportunity to live and study in Germany and South Korea, which has broadened my perspective and fueled my love for learning. Whether it’s fine-tuning models or optimizing databases, I enjoy tackling challenging problems with innovative approaches and collaborating with teams to bring ideas to life.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Language

English

Fluent

German

Fluent

Korean

Intermediate

Work Experience

Machine Learning Engineer at Enstyle

April 1, 2024 - Present

As the first hire, I played a key role in designing and building all core systems from the ground up ● Developed an LLM-based chatbot to provide users with insights into a comprehensive catalog of product attributes and generate personalized recommendations ● Fine-tuned embedding models and utilized vector databases to build a scalable recommendation engine that retrieves similar images with user-customizable criteria ● Built and deployed an image attribution pipeline using Vision-Language models, continuously improved through prompt engineering and few-shot learning ● Implemented a modular data pipeline aggregating and processing scraped data from multiple sources ● Created efficient database schemas and optimized complex SQL queries to enhance speed and scalability.

Computer Vision Research Engineer at Deep Block

February 29, 2024 - July 18, 2025

● Conceptualized and developed a training and inference pipeline performing object detection and semantic segmentation with high accuracy on very large images containing thousands of objects ● Reduced post-processing time by 99% through parallelization and algorithmic optimization ● Researched and implemented a model to segment changed areas in multi-temporal image pairs, improving F1-score on benchmark dataset from 80% to 88%.

Student Research Assistant at Fraunhofer Institute for Computer Graphics Research

May 31, 2021 - July 18, 2025

● Researched and developed methods for high-resolution 3D reconstruction of a scene from depth images ● Increased resolution of the 3D reconstruction application by 400% through algorithmic improvements.