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I'm Marcel Bąk, a senior full-stack engineer with 9+ years of experience building scalable platforms across eCommerce, fintech, AI-driven products, and healthcare systems. I specialize in designing high-performance backend architectures, modern frontend applications, and cloud-native microservices, leveraging TypeScript, Angular, C#/.NET, Node.js, Python, PostgreSQL, Docker, and Kubernetes. I enjoy AI-assisted development workflows, CI/CD automation, and data-driven product engineering to deliver measurable business impact and a great user experience.…I'm Marcel Bąk, a senior full-stack engineer with 9+ years of experience building scalable platforms across eCommerce, fintech, AI-driven products, and healthcare systems. I specialize in designing high-performance backend architectures, modern frontend applications, and cloud-native microservices, leveraging TypeScript, Angular, C#/.NET, Node.js, Python, PostgreSQL, Docker, and Kubernetes. I enjoy AI-assisted development workflows, CI/CD automation, and data-driven product engineering to deliver measurable business impact and a great user experience.

Marcel Bąk

Full Stack Developer, Web Developer, Front-End Developer, +2

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I'm Marcel Bąk, a senior full-stack engineer with 9+ years of experience building scalable platforms across eCommerce, fintech, AI-driven products, and healthcare systems. I specialize in designing high-performance backend architectures, modern frontend applications, and cloud-native microservices, leveraging TypeScript, Angular, C#/.NET, Node.js, Python, PostgreSQL, Docker, and Kubernetes. I enjoy AI-assisted development workflows, CI/CD automation, and data-driven product engineering to deliver measurable business impact and a great user experience.…I'm Marcel Bąk, a senior full-stack engineer with 9+ years of experience building scalable platforms across eCommerce, fintech, AI-driven products, and healthcare systems. I specialize in designing high-performance backend architectures, modern frontend applications, and cloud-native microservices, leveraging TypeScript, Angular, C#/.NET, Node.js, Python, PostgreSQL, Docker, and Kubernetes. I enjoy AI-assisted development workflows, CI/CD automation, and data-driven product engineering to deliver measurable business impact and a great user experience.

Available to hire

I’m Marcel Bąk, a senior full-stack engineer with 9+ years of experience building scalable platforms across eCommerce, fintech, AI-driven products, and healthcare systems.

I specialize in designing high-performance backend architectures, modern frontend applications, and cloud-native microservices, leveraging TypeScript, Angular, C#/.NET, Node.js, Python, PostgreSQL, Docker, and Kubernetes. I enjoy AI-assisted development workflows, CI/CD automation, and data-driven product engineering to deliver measurable business impact and a great user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior Full-Stack Engineer at Globant

April 1, 2022 - Present

Led the development of scalable eCommerce and AI-enabled platforms, designed microservice-based backend architectures using C#/.NET Core, Node.js, and TypeScript; built Angular-based dashboards; integrated AI capabilities via OpenAI APIs; architected cloud-native infrastructure with Docker, Kubernetes, Terraform on AWS; optimized API performance and database queries; expanded CI/CD pipelines with GitHub Actions; implemented secure authentication (OAuth2, JWT) and RBAC; mentored junior engineers; contributed to healthcare workflow automation.

Mid-Level Full-Stack Engineer at Mollie

February 1, 2020 - March 1, 2022

Developed secure payment platform features, backend APIs in C#/.NET and Node.js for payment orchestration, subscription billing, and reconciliation; implemented Angular frontend to improve merchant usability; strengthened authentication flows, fraud prevention, and PCI-conscious practices; improved reliability via automated testing and cloud-based pipelines; optimized SQL queries for financial reporting; supported legacy service modernization to microservices.

Junior Software Engineer at Youwe

August 1, 2016 - January 1, 2020

Contributed to eCommerce web applications and client-facing digital platforms; built frontend features with Angular and JavaScript while supporting backend integrations with C#/.NET services and REST APIs; assisted in product catalog management, order workflows, and customer-facing web functionality; collaborated with senior engineers on testing, deployment, and data-driven analytics initiatives.