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Marcin Mita

@marcinmita

Message

Senior Full Stack Engineer delivering scalable AI-integrated web applications and cloud-native solutions.

Poland

Message

What I'm looking for

I seek senior roles building AI-integrated, scalable web applications with end-to-end ownership, cloud-native infrastructure, clean code practices, and a collaborative team that values mentoring and ML in production.

I am a Senior Full Stack Engineer with 8+ years building scalable web applications and AI-powered solutions, leading end-to-end development using React, Next.js, Node.js, Python microservices, and OpenAI APIs. I have delivered high-performance fintech and e-commerce systems, integrated solutions across healthcare, finance, and e-learning, and improved API response times by 40% while supporting millions of user queries.

I drive cloud adoption and resiliency by deploying on AWS and Azure, leveraging Docker and Kubernetes, and automating CI/CD pipelines. I prioritize clean, maintainable code, accessibility, and mentoring junior developers while building adaptive, ML-enhanced products that bring measurable user and business value.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

SDLC Corp

Mar 2021 - Present (4 years 6 months)

Designed and developed full-stack AI-integrated fintech and e-commerce applications using React, Next.js, and Node.js, integrating OpenAI APIs and Python microservices to deliver intelligent features. Spearheaded cloud adoption on AWS/Azure with Docker and Kubernetes, improving API response times by 40% and supporting millions of user queries per day.

React Next.js Node TypeScript Python AWS Docker Kubernetes

Full Stack Engineer

KitRUM

Apr 2017 - Nov 2020 (3 years 7 months)

Implemented AI model integrations (OpenAI and custom Python microservices) and built responsive React/Next.js front-ends to enable NLP-driven features and real-time updates. Developed Python/Node.js RESTful backends and cloud-native deployments, improving server response times by 40% and enhancing user engagement.

React Next.js Python Node PostgreSQL Docker AWS REST APIs

Education

Degrees, certifications, and relevant coursework

Lublin University of Technology

Bachelor of Science, Software Engineering

2014 - 2017

Activities and societies: Participated in agile development, sprint planning, and feature prioritization; conducted code reviews and enforced coding standards.

Completed a Bachelor of Science in Software Engineering at Lublin University of Technology from October 2014 to March 2017, focusing on software development practices and agile methodologies.