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I am Bogdan Lewandowski, a Machine Learning Engineer with 3+ years of Python production ML experience, focusing on model training, offline evaluation, and FastAPI-based inference integrated with PostgreSQL. I enjoy turning experimentation into reliable features shipped through robust pipelines and well-observed services. I thrive in remote, cross-functional teams and own features end-to-end—from experiment design to AWS/Docker deployment. I have delivered multiple production model lines, improved latency and error rates through profiling and artifact versioning, and I value clear communication, maintainable monitoring, and reproducible releases.…I am Bogdan Lewandowski, a Machine Learning Engineer with 3+ years of Python production ML experience, focusing on model training, offline evaluation, and FastAPI-based inference integrated with PostgreSQL. I enjoy turning experimentation into reliable features shipped through robust pipelines and well-observed services. I thrive in remote, cross-functional teams and own features end-to-end—from experiment design to AWS/Docker deployment. I have delivered multiple production model lines, improved latency and error rates through profiling and artifact versioning, and I value clear communication, maintainable monitoring, and reproducible releases.

Bogdan Lewandowski

Full Stack Developer, Front-End Developer, Back-End Developer, +6

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I am Bogdan Lewandowski, a Machine Learning Engineer with 3+ years of Python production ML experience, focusing on model training, offline evaluation, and FastAPI-based inference integrated with PostgreSQL. I enjoy turning experimentation into reliable features shipped through robust pipelines and well-observed services. I thrive in remote, cross-functional teams and own features end-to-end—from experiment design to AWS/Docker deployment. I have delivered multiple production model lines, improved latency and error rates through profiling and artifact versioning, and I value clear communication, maintainable monitoring, and reproducible releases.…I am Bogdan Lewandowski, a Machine Learning Engineer with 3+ years of Python production ML experience, focusing on model training, offline evaluation, and FastAPI-based inference integrated with PostgreSQL. I enjoy turning experimentation into reliable features shipped through robust pipelines and well-observed services. I thrive in remote, cross-functional teams and own features end-to-end—from experiment design to AWS/Docker deployment. I have delivered multiple production model lines, improved latency and error rates through profiling and artifact versioning, and I value clear communication, maintainable monitoring, and reproducible releases.

Available to hire

I am Bogdan Lewandowski, a Machine Learning Engineer with 3+ years of Python production ML experience, focusing on model training, offline evaluation, and FastAPI-based inference integrated with PostgreSQL. I enjoy turning experimentation into reliable features shipped through robust pipelines and well-observed services.

I thrive in remote, cross-functional teams and own features end-to-end—from experiment design to AWS/Docker deployment. I have delivered multiple production model lines, improved latency and error rates through profiling and artifact versioning, and I value clear communication, maintainable monitoring, and reproducible releases.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Polish

Fluent

English

Fluent

Work Experience

Machine Learning Engineer at ALTEN Polska

September 1, 2025 - April 30, 2026

Built Python services with clear API contracts, logging, and production operations. Worked with PostgreSQL and rigorous data validation—skills map to SQL Server + EF environments. Deployed with Docker; supported repeatable release and configuration practices. Communicated technical trade-offs in English with async, distributed colleagues. Focused on scalability and fault handling for customer-impacting workloads.

Software Engineer / AI Developer at Viercode

September 1, 2024 - August 31, 2025

Shipped React/TypeScript front ends and Node.js / REST backends for enterprise-style web applications. Designed APIs, validation, and data access layers suitable for long-term maintainability. Improved performance and reliability on read-heavy paths and integration boundaries. Collaborated with stakeholders; scoped work and delivered independently in a remote team. Participated in planning, reviews, and incremental releases.

Machine Learning Engineer at Independent Projects (Freelance & Open Source)

January 1, 2022 - Present

8+ public repositories on GitHub; practiced MLOps: dataset versioning, experiment tracking, and reproducible evaluation harnesses. Prototyped NLP classification and embedding pipelines with held-out metrics and error analysis notebooks. Shipped demo FastAPI microservices (auth, third-party APIs) to validate production-style integration patterns.

ML Engineer — Independent Projects at Freelance & Open Source

January 1, 2022 - Present

Portfolio of 8+ public repos spanning PyTorch notebooks, FastAPI services, and automation—documented READMEs and reproducible training scripts. Practiced MLOps workflows: dataset versioning, experiment tracking, and repeatable eval harnesses before promoting model weights. Prototyped NLP classification and embedding pipelines with held-out metrics and error analysis notebooks. Shipped demo FastAPI microservices (auth, third-party APIs) to validate integration patterns used in production-style ML services.

Full-Stack & .NET Learning at GitHub

January 1, 2022 - Present

Active learning: C#, ASP.NET Core minimal APIs and MVC patterns alongside existing React projects. Portfolio demonstrates API design, auth patterns, and cloud-friendly project structure. Practices CI-friendly repos and documentation for handover. Open to deepening Azure DevOps (pipelines, environments) per client standards.