About Me

AI/ML Engineer with a knack for building smart, scalable, and full-stack AI systems.

Shubham Singh Professional

Who I Am

I'm a Data Scientist and ML Engineer based in Berlin with over 5 years of experience building scalable machine learning pipelines and applying statistical models to solve real-world problems. Over the past year, I've also explored LLMs and RAG architectures, blending classic data science with cutting-edge AI.

My sweet spot is transforming complex data into practical, intelligent systems. I work across the stack—data ingestion, modeling, evaluation, and deployment—using tools like PyTorch, Python, Scikit-learn, and Hugging Face to create solutions that are both accurate and efficient.

I thrive on bridging ML, statistics, and AI, whether it's forecasting trends, classifying data, or fine-tuning models for retrieval and generation tasks. I’m passionate about turning raw data into actionable insights and intelligent applications.

5+

Years of Experience

1.5+

Years with LLMs

20+

Key Projects

M.Sc.

Data Science

Technical Skills & Proficiencies

A comprehensive overview of my technical expertise across various AI and development domains.

AI/ML Frameworks

PyTorchExpert
TransformersExpert
LangChain / LangGraphAdvanced
Unsloth & TRLAdvanced
Pydantic AIProficient

LLM Tools

RAG ArchitectureExpert
Fine-tuning (LoRA, PEFT)Advanced
Prompt EngineeringAdvanced
OllamaAdvanced
RAGAS (learning)Intermediate

Backend & DevOps

FastAPIAdvanced
Firebase (Firestore, Auth, Functions)Expert
DockerAdvanced
SupabaseAdvanced
SQLAlchemyProficient

Languages

PythonExpert
SQLAdvanced
TypeScript/JSAdvanced
BashIntermediate

Vector Databases

ChromaDBAdvanced
FAISSProficient
Supabase pgvectorAdvanced
QdrantProficient

Professional Journey

My career path and key milestones in the field of AI and machine learning.

Data Scientist

Flix Mobility Tech GmbH – Berlin

Jan 2023 - Present

Enhanced tree-based demand prediction models for bus seat occupancy, improving accuracy through feature engineering and cross-team collaboration.

Data Scientist

Pixsy – Berlin

Jun 2021 – Jun 2022

Built an end-to-end ML pipeline for image similarity using Kafka & Spark. Developed a hybrid deep learning model (ResNet/Siamese) that improved matching accuracy by 22%.

M.Sc. in Data Science

Otto-von-Guericke Universität – Magdeburg

2019 – 2022

Key Courses: Machine Learning, Deep Learning, Learning Generative Models, Computer Vision, Recommenders, Data-Warehouse-Technologies.

ML Engineer

Accenture AI – Bengaluru

Nov 2018 – Aug 2019

Developed failure prediction models for trade transactions using Gaussian Mixture Models and optimized critical SQL queries, improving system response time by 38%.

Application Analyst

Accenture – Pune, India

Sep 2016 – Nov 2018

Built an email classification and ticket assignment model using Naïve Bayes and SVM (F1 score: 0.797). Performed EDA on retail sales data and optimized SQL queries, reducing response time by 38%.

B.Tech in Electronics & Communication

GGSIPU – Delhi, India

2012 – 2016

Key Subjects: Data Structures and Algorithms, C++, Software Engineering, Applied Mathematics and Statistics.

My Approach

The core principles that guide my work.

Full-Stack Mindset

Building end-to-end solutions, from robust data pipelines and backend logic to intuitive user-facing interfaces.

Pragmatic Innovation

Applying the right tool for the job, whether it's a classic ML model or a fine-tuned LLM, to deliver efficient and scalable results.

Continuous Learning

Staying hands-on with the latest tools and techniques in the fast-paced world of AI to build cutting-edge, optimized systems.

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