Steven Hirzfeld

Full-Stack Software Engineer

Software Engineer with a proven track record of building production-ready, full-stack solutions from concept to deployment. Specialized in architecting scalable and robust systems, while solving real-world problems through thoughtful technology choices.

Proven ability to rapidly learn and implement new technologies, having scaled from an individual contributor to a technical mentor for 1,500+ developers. Seeking to leverage my problem-solving mindset and technical versatility to deliver high-impact solutions in a fast-paced environment.

estebanhirzfeld@gmail.com +54 1139137415 Buenos Aires, Argentina

PROFESSIONAL EXPERIENCE

NEORED 2024 - Present

Data Operations Analyst

  • Process and validate hundreds of daily product records from multiple formats (Excel, PDF) ensuring data integrity before loading into Odoo ERP system.
  • Developed Python scripts (Playwright, Pandas, Pillow) to automate repetitive data processing tasks, reducing processing time and minimizing manual errors.
  • Collaborate cross-functionally to maintain catalog quality standards and implement data enrichment processes.
  • Demonstrated initiative by creating reusable automation tools and documented workflows for potential team adoption.
Coder House (Contractor) 2022 - 2024

Web Development Courses Coordinator & Senior Instructor

  • Scaled through 3 roles (Tutor → Instructor → Coordinator) by driving student success.
  • Taught 1,500+ students across 15 cohorts (80-200 students each) in React, Node.js, Python/Django, and JavaScript fundamentals, maintaining a 4.8/5 instructor rating and 90% graduation rate.
  • Built Boom Recorder, an internal video feedback tool with screen capture, automatic cloud upload, and sharing capabilities—streamlining personalized code review delivery.
  • Mentored 30+ instructors on technical best practices, curriculum delivery, and student engagement strategies.
Freelance & Contract Projects 2021 - 2022

Full-Stack Developer

  • Architected and deployed a high-performance eCommerce platform with React, Django REST API, real-time web scraping, Redis caching, Celery, and Mercado Pago integration.
  • Implemented SSR optimization, Docker containerization, and automated cron jobs to handle thousands of product updates daily while maintaining sub-second response times.
  • Leveraged geolocation (Leaflet), advanced filtering, user reviews/ratings, and admin dashboards to deliver production-ready solutions.
YouTube Channel 2020 - 2021

Founder & Content Creator (165K+ Subscribers)

  • Built and scaled an entertainment/animation channel from 0 to 165K+ subscribers, achieving monetization and securing sponsorships.
  • Developed and maintained a companion WordPress website, managing the full content pipeline from scripting and production to SEO and audience growth.
  • Demonstrated entrepreneurial execution, marketing acumen, and ability to build digital products that resonate with large audiences.
MercadoLibre Platform 2015 - 2016

eCommerce Owner & Operator

  • Launched and independently managed an eCommerce venture, handling end-to-end operations from inventory management to customer service.
  • Developed marketing and sales strategies, optimizing product listings and copywriting to drive conversion rates.