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I am a senior Python developer and backend architect with 7+ years of experience leading data-intensive fintech and AI applications. I design scalable microservices on AWS and Google Cloud, adhere to SOLID principles and Clean Code, and mentor teams through code reviews, CI/CD pipelines, and unit testing to boost reliability and throughput. I thrive on translating complex business requirements into robust data pipelines and back-end systems, collaborating with cross-functional teams to deliver maintainable architectures, high uptime, and scalable solutions that support growth and compliance.…I am a senior Python developer and backend architect with 7+ years of experience leading data-intensive fintech and AI applications. I design scalable microservices on AWS and Google Cloud, adhere to SOLID principles and Clean Code, and mentor teams through code reviews, CI/CD pipelines, and unit testing to boost reliability and throughput. I thrive on translating complex business requirements into robust data pipelines and back-end systems, collaborating with cross-functional teams to deliver maintainable architectures, high uptime, and scalable solutions that support growth and compliance.

Tudor Stefanescu

Back-End Developer, Full Stack Developer, Web Developer, +3

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I am a senior Python developer and backend architect with 7+ years of experience leading data-intensive fintech and AI applications. I design scalable microservices on AWS and Google Cloud, adhere to SOLID principles and Clean Code, and mentor teams through code reviews, CI/CD pipelines, and unit testing to boost reliability and throughput. I thrive on translating complex business requirements into robust data pipelines and back-end systems, collaborating with cross-functional teams to deliver maintainable architectures, high uptime, and scalable solutions that support growth and compliance.…I am a senior Python developer and backend architect with 7+ years of experience leading data-intensive fintech and AI applications. I design scalable microservices on AWS and Google Cloud, adhere to SOLID principles and Clean Code, and mentor teams through code reviews, CI/CD pipelines, and unit testing to boost reliability and throughput. I thrive on translating complex business requirements into robust data pipelines and back-end systems, collaborating with cross-functional teams to deliver maintainable architectures, high uptime, and scalable solutions that support growth and compliance.

Available to hire

I am a senior Python developer and backend architect with 7+ years of experience leading data-intensive fintech and AI applications. I design scalable microservices on AWS and Google Cloud, adhere to SOLID principles and Clean Code, and mentor teams through code reviews, CI/CD pipelines, and unit testing to boost reliability and throughput.

I thrive on translating complex business requirements into robust data pipelines and back-end systems, collaborating with cross-functional teams to deliver maintainable architectures, high uptime, and scalable solutions that support growth and compliance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Python Developer at DailyPay

November 1, 2024 - November 27, 2025

Led Python application architecture for data processing and scalable Django-based LLMs, delivering a 30% adoption boost while upholding SOLID principles. Implemented data pipeline orchestration across PostgreSQL/NoSQL and AWS microservices, achieving a 40% load reduction. Mentored juniors through code reviews, Clean Code practices, and unit testing, accelerating deployment cycles by 25%. Maintained 99.9% uptime and collaborated with cross-functional teams to scale cloud-based infrastructure; championed CI/CD pipelines and comprehensive integration testing.

Senior Developer at DailyPay

November 1, 2024 - November 26, 2025

Led design and implementation of scalable Django-based applications, including LLM integrations, applying SOLID principles and Clean Code to deliver compliant, high-availability backend services. Designed data pipelines with PostgreSQL/NoSQL and AWS microservices, achieving 30% adoption boost and 99.9% uptime. Implemented CI/CD pipelines and integration tests, and mentored juniors to improve code quality, reducing deployment cycles by 25%.

Senior Software Engineer (Backend Focus) at ShopeePay

October 1, 2024 - October 1, 2024

Led Django-based fraud detection pipelines, reducing error rate by 42% and achieving sub-50ms processing for millions of transactions. Built microservices on AWS/GCP with CI/CD pipelines, enabling scalable fintech workflows. Optimized data integration with PostgreSQL and Redis to improve 30% throughput and maintain PCI-DSS compliant systems. Automated data infrastructure monitoring and orchestration; mentored juniors on Clean Code and SOLID.

Software Engineer at Grab

February 1, 2023 - February 1, 2023

Designed scalable Python microservices using Design Patterns and Kubernetes, enabling resilient backend migrations and a 30% system enhancement. Implemented automated testing with high code coverage and CI/CD pipelines using Docker and Terraform, delivering production-ready fintech backends. Translated cross-functional requirements and mentored peers in SOLID and agile practices to deliver robust data infrastructure.

Software Engineer Internship at DBS Bank

June 1, 2021 - June 1, 2021

Supported Python backend development with automation tools and data integration scripts, contributing to early microservices prototypes with SQL databases. Participated in agile team collaborations, learned Design Patterns and unit testing fundamentals, and gained exposure to AWS basics and Clean Code practices for foundational application development.