Open to opportunities

Samad User

@samaduser4

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Senior full-stack engineer delivering scalable Python/React systems on cloud with DevOps and AI-driven features.

Slovakia

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What I'm looking for

I’m looking for a role where I can lead end-to-end product delivery—building scalable full-stack systems with strong security, practical DevOps, and real-time/AI-driven capabilities—while mentoring teams and continuously improving how we ship.

I’m a results-driven Senior Full Stack Engineer with 9+ years of experience designing, building, and scaling software systems that improve operational efficiency and user engagement. My strengths span Python back ends and modern JavaScript front ends, with an architecture-first mindset.

In recent roles, I’ve led end-to-end delivery for client-facing products—building secure FastAPI-based APIs, scalable microservices with Docker and Kubernetes, and event-driven real-time processing using Kafka. I integrate machine learning into production workflows, and I consistently focus on performance, reliability, and measurable outcomes like reduced latency and improved data insights accuracy.

I care deeply about security and compliance, implementing standards such as GDPR and SOC 2 while ensuring safe authentication and encrypted data exchange (OAuth2/JWT/SSL-TLS). I also bring practical DevOps experience (CI/CD, IaC, monitoring/logging) and enjoy mentoring teams while optimizing processes for continuous improvement.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Sopra Steria

Oct 2023 - Present (2 years 7 months)

Led end-to-end client solutions for the financial services sector using FastAPI and React, integrating machine learning to improve data insights accuracy by 25%. Built and secured scalable microservices on Docker/Kubernetes and AWS/Azure, reducing operational costs by 20% and improving security compliance by 40%.

fastAPI React Docker Kubernetes AWS Azure Microservices OAUTH2 Kafka Machine Learning

Software Engineer

Doist

Nov 2021 - Sep 2023 (1 year 10 months)

Contributed to Todoist’s task management system using React/Redux and Python (Flask/Django), improving user experience and reducing API response times by 40%. Led real-time collaboration and mobile performance work, cutting sync latency by 20%, reducing app load time by 25%, and improving platform uptime by 30%.

React Redux Flask Django GCP React Native WebSockets GDPR Jest Pytest

Senior Full Stack Engineer

MailerLite

Oct 2018 - Nov 2021 (3 years 1 month)

Developed a scalable email marketing platform with Flask and React, migrating legacy systems to AWS to reduce costs by 20%. Built REST APIs and automated email workflows, improving engagement by 35%, while implementing GitLab CI/CD to reduce deployment-related bugs by 30%.

Flask API React REST APIs AWS Gitlab CI Jest Pytest Email Automation CI CD Testing

Software Engineer

Garwan

Jul 2014 - Sep 2018 (4 years 2 months)

Led development of scalable client solutions for the DACH region using Django/Flask, React, and secure back-end services. Improved performance and reliability through third-party API integrations (+40% processing speed), AWS deployments (-30% infrastructure costs), and a move to microservices (+30% uptime).