Ehsan Fouladi

Freelance Full Stack Web Developer

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About Me

I serve as CTO at LenoSell (formerly iSips), steering the technical vision and execution of an e-commerce ecosystem that spans shop, order, and product microservices. My focus is scaling Django/DRF platforms, evolving REST and gRPC integrations, and keeping infrastructure observable, secure, and production-ready.

Alongside that role I continue to take on select freelance engagements, leveraging 6+ years of full-stack experience with Django, React, PostgreSQL, and modern DevOps practices to deliver high-quality products on time and within budget. I thrive in collaborative environments that value ownership, rapid iteration, and measurable impact.

Skills & Expertise

Proficient

Python, Django, DRF, React, Redux and RTQ, Git and Github.

Comfortable

Linux, Next.js, Tailwind CSS, Postgresql.

Familiar

Signal Processing, Cicso ios(CCNA), Windows Server 2008(MCITP).

Professional Experience

CTO & Fullstack Developer at lenosell.ir

September 2023–Now
  • Serve as CTO for LenoSell (formerly iSips), setting technical strategy, managing engineering execution, and aligning product roadmap with business goals.
  • Led development across the Shop, Order, and Product microservices for LenoSell, owning REST and gRPC interfaces, OAuth2 introspection middleware, Prometheus instrumentation, and admin theming within a Django/DRF ecosystem.
  • Orchestrated shop profile and variant models with geospatial data, Celery-backed jobs, and inter-service gRPC integrations while hardening the product catalog with hierarchical categories, bulk operations, and S3-integrated storage.
  • Delivered a Django OAuth Toolkit–based authentication server, redesigned iCart’s core payment database and transaction flows, and co-architected the Review, Discount, KYC/KYB, and Subscription microservices.
  • Directed Docker packaging and deployment pipelines across environments, pairing infrastructure automation with service observability, maintaining protobuf contracts, enforcing drf-spectacular API documentation, and optimizing GDAL/GEOS dependencies for production reliability.

Cadinuswap at cadinu.io

April 2022–August 2023
  • Built the frontend for the Cadinu Crypto App Platform, serving over 5,000 users.
  • Launched the landing page and blog, and implemented a CMS using Next.js and Strapi, increasing content publishing efficiency by 30%.
  • Engineered an admin dashboard for trading bot management with Django and Celery, improving operational oversight.
  • Developed key backend features with Django, DRF, Celery, and Web3, enabling secure and scalable crypto transactions.
  • Mastered Web3 development for crypto frontend creation using Wagmi and Viem, accelerating feature delivery.
  • Successfully implemented complex features under tight deadlines, contributing to project success and user satisfaction.

opgAI at opgai.com

April 2022–Nov 2022
  • Designed and developed a web application for dental clinics to manage appointments, dentist schedules, and patient medical histories using Django, React.js, and PostgreSQL, adopted by 20+ clinics.
  • Implemented AI features for diagnosis and tooth condition visualization, achieving 95% accuracy and reducing diagnostic time by 40%.
  • Delivered a high-accuracy AI tool that enables dentists to identify tooth and gum problems with a single click.
  • Received positive client feedback and referrals for delivering a user-friendly, high-quality application on time and within budget.

Software Engineer (Contract) at Metil Hamyar

September 2021–January 2022
  • Designed the relational data model to capture iron-ore logistics across rail and road shipments alongside laboratory metrics for every batch.
  • Built bulk import and update workflows that let operations teams manage records with the company’s existing Excel templates.
  • Delivered consistently formatted Excel exports to support finance and operations reporting.
  • Integrated with the company’s smart monitoring systems to synchronize master data and remove manual reconciliation steps.

Education

Master of Telecommunication Engineering

Yazd University (GPA 3.14) - 2016
  • Relevant Coursework: Speech Signal Processing, Microphone array speech processing, Speech overlap, Speaker number detection
  • Thesis: Source Number Detection for The Localization of Simultaneous Speakers

Bachelor of Electrical and Electronics Engineering

Islamic Azad University Fars Science & Research (GPA 3.4) - 2013
  • Bachelor Project: SMS Caller ID

Hobbies & Interests

  • Enjoy cycling and exploring new places on weekends.
  • Play volleyball and billiards regularly with friends.
  • Avid fan of TV series across various genres.