Freelancer profile translated to English.
Back to original languageAbout Ivan
👨🏻💻 Ivan Stepanian, Software Engineer Full-Stack | Developer since 2017
⭐ Rated 5/5, 18+ missions completed
Full-stack Typescript developer specializing in React/React Native/Next.js, I have been working for several years with small businesses as a solo developer as well as in agile teams within large corporations.
Why choose me?
-> Transparent project management
▪ several weekly check-ins
▪ clear communication, bringing my expertise
▪ adapted architectures
▪ documentation creation
▪ in a team: knowledge sharing, code review
-> Full-stack mastery
Frontend 🖥️📱
▪ React 19 (React Router v7), Next.js 15 (app dir)
▪ Mobile: React Native 0.79 + Expo 53 (expo-router)
Managed Backend 🚀
▪ Supabase (Deno edge functions, RLS...)
Hosted Backend ⚙️
▪ Node.js/Bun (Hono, ExpressJS, Fastify), NestJS, Adonis.js
▪ ORM: Drizzle, Prisma, TypeORM, MikroORM
Infrastructure👷🏻♂️
▪ GitHub CI/CD
▪ IaC Terraform + Ansible
▪ nginx, Caddy, Docker Swarm, Kubernetes
▪ Redis, buckets, service integrations...
-> PostgreSQL DBA
▪ security via RLS, GRANT, REVOKE
▪ data integrity via complex CHECK constraints
▪ PL/pgSQL (functions, triggers)
▪ Extensions: pgAudit, PostGIS...
▪ clean migration management
-> Integrations
▪ ChatGPT Open AI, Perplexity, Claude...
▪ Stripe, open banking (GoCardless/ex-Nordigen)
▪ Transactional Emails & SMS
▪ Sentry
▪ SIRENE API
▪ Google Maps, Mapbox, France Addresses API
-> Other skills
Python mastery, several projects completed with FastAPI and Django
Experience with NoSQL: MongoDB, Cassandra...
Scraping: Selenium (bs4), Puppeteer
Big Data: Python (pandas), R, Apache Stack (Hadoop, HBase, Spark, Kafka)
Machine Learning: Numpy, Tensforflow / Keras
Data Visualization: pyplot, d3.js
French
Native or bilingual
English
Native or bilingual
Chinese
Conversational
Remote only
Primarily works remotely
Experience
- STEPANIAN IVAN • SIRET 98505510200018Software Engineer Full-Stack FreelanceSOFTWARE PUBLISHINGSeptember 2023 - Today (2 years and 10 months)France18+ missions completed @Leets @GENCI @BLTX @Smiledeal @Galadrim— TypeScript backend development (NestJS, NextJS 14, Express / Fastify, external API integration...)— Python backend development (Django)— React / NextJS / React Native frontend development (SSR, client state management, refactoring, UI/UX optimization, accessibility...)— Web scraping and scraping automation— Data cleaning, enrichment & visualization
- OkampusFounderSOFTWARE PUBLISHINGMay 2022 - September 2023 (1 year and 4 months)Paris, FranceStartup Management— Business model & business plan design— Customer needs analysis & market research and survey organization— Development and expression of a long-term company visionSoftware Architecture— Design of a complex and optimized data schema— Design of a scalable and low-cost cloud architecture— Technology experimentation and stack selection: React/NextJS + API Routes (automatic serverless via Vercel), PostgreSQL, Hasura GraphQLFull-stack & DevOps Development— UX design & UI designer supervision on Figma— NextJS development (app directory convention, static site generation with incremental static regeneration, server-side rendering...)— Creation of a serverless infrastructure with Scaleway, Vercel & Kubernetes— Integration of AI services via OpenAI & AWS Textract
- DatadidacteFull-Stack DeveloperEDUCATION AND E-LEARNINGApril 2021 - December 2021 (8 months)FranceDevelopment in Scala, PHP (Symfony), Python, Java, C, and C++ to create interactive programming and data engineering exercise sequences.— Creation of a CLI tool for generating extensible Docker configurations from Dockerfile templates— Content creation: writing exercise sequences (problem statement, automatic correction & hints)— Creation of a backend engine for creating and correcting exercises for the Scala language— Development of interactive React data visualizations to teach linear regression and neural networks— Development of C, Java, C++, and Python exercise sequences to teach data structures (linked lists, graphs, trees...)— Development of CTF-style exercises to teach pentesting (injection, XSS, XSRF...)
Reviews
Léa
Galadrim
Reviewed on 4/15/2025
Thanks to Ivan for his work! He communicates his progress, understands the challenges, and meets deadlines.
J
Jean
BLTX
Reviewed on 10/5/2024
Excellent overall mission.
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Education
- Engineering Degree, Big Data & Machine LearningEFREI Paris2022Diplôme d'ingénieur, Big Data & Machine Learning
- Exchange Semester, Information TechnologySoutheast University2020Semestre d'échange, Technologies de l'information