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Daniel Tadros

@danieltadros2

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Senior Full Stack Engineer specializing in scalable backend systems, AI integration, and performant frontends.

United States

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What I'm looking for

I seek engineering roles where I can design scalable cloud-native systems, integrate AI workflows, mentor teams, and improve product performance and reliability.

I am a Senior Full Stack Engineer with 10+ years building scalable backend systems, secure APIs, and polished frontend applications across fintech, healthtech, and SaaS. I design and deploy cloud-native solutions (AWS, Azure) and integrate AI/ML workflows into production to deliver measurable performance and business impact.

My work includes leading merchant-facing services, AI-enhanced fraud detection, multi-region inventory platforms, and modern design systems. I mentor engineers, drive architecture and design discussions, and consistently improve accessibility, reliability, and developer velocity.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Shopify

Jan 2021 - Feb 2026 (5 years 1 month)

Led development of merchant-facing BNPL and AI-enhanced fraud detection APIs handling millions of daily requests with sub-100ms latency, and designed a multi-region inventory platform that reduced lookup times by 30%+.

Python fastAPI Django React GraphQL AWS Docker Terraform Redis

Software Engineer

CVS Health

Apr 2017 - Dec 2020 (3 years 8 months)

Built HIPAA-compliant backend services and patient-facing Angular experiences for prescription and eligibility workflows across 9,000+ retail locations, and implemented QA automation that reduced regression defects by 40%.

Django fastAPI Python Angular Azure Kubernetes SQL Cypress Pytest Healthcare Compliance

Web Developer

Snap

Sep 2012 - Mar 2017 (4 years 6 months)

Built high-scale messaging and media services with Node.js and WebSocket supporting growth from ~50M to 150M+ daily users, and developed React/TypeScript component libraries and low-latency APIs to improve UX and reliability.

Node WebSockets React TypeScript GraphQL AWS EC2 RDS Media Services Performance Optimization Frontend Engineering

Software Engineering Intern

Snap

Jun 2012 - Aug 2012 (2 months)

Contributed UI improvements to Snap creation and preview flows using JavaScript and React during a summer internship, enhancing usability and frontend performance.

JavaScript React Frontend Development Performance Optimization