Hossein BabaeiTabarBisheh
Verified Expert in Engineering
Software Developer
Istanbul, Turkey
Toptal member since August 10, 2022
Hossein is a full-stack software engineer with 15+ years of experience building production systems across TypeScript, React, Node.js, Python, and AWS. He considers himself hardworking, responsible, and eager to learn. For the last decade, he has worked across the entire stack, from React/TypeScript front ends to Python back ends to LLM-powered pipelines. He enjoys challenging problem-solving and creating things out of nothing, or finding more efficient ways to do them.
Portfolio
Experience
- JavaScript - 10 years
- React - 8 years
- Node.js - 8 years
- TypeScript - 8 years
- Express.js - 7 years
- Secure Coding - 4 years
- React Native - 3 years
- Next.js - 3 years
Preferred Environment
Visual Studio Code (VS Code)
The most amazing...
...thing I've developed is a code generator to create full CRUD on React and Express.js, working on the Sparrow directory (WIP).
Work Experience
Front-end Focused Full-stack Developer
Super.AI Inc
- Built and maintained full-stack features using React and Python at Super.ai, contributing to AI-driven platforms that support high-volume data annotation and model training workflows for enterprise use cases.
- Delivered end-to-end functionality in weekly sprints using Linear for task management, consistently shipping production-ready code through rapid iteration, tight feedback loops, and strong ownership.
- Leveraged AI agents as part of the development process to accelerate implementation, reduce cycle time, and support a highly agile engineering environment focused on speed, adaptability, and quality.
Senior Full-stack Engineer
Zanders Group
- Led front-end architecture for a financial SaaS platform using React, TypeScript, and MUI, improving performance, scalability, and developer experience.
- Implemented a design system, improved accessibility, and reduced UI bugs by 40%. Collaborated cross-functionally to deliver polished UX and mentor engineers.
- Collaborated with product and tech leads to align features with business goals. Helped accelerate delivery timelines and supported distributed team coordination.
Front-end Team Lead
Toptal
- Initiated a React Native application and set up the repo with the required automated QA and tools for code quality.
- Created the required code generators for GraphQL to ensure end-to-end type safety.
- Worked in a multifunctional team from the CEO to UI/UX designers and resource managers to create and assign tasks for the developers.
- Learned how to manage a fully remote team with high velocity on working hours/week for each developer.
Senior Software Engineer
Passionate People
- Developed an integration with a third party for server-side AB testing, including cookie consent from another third party.
- Developed a new framework to make the current project more scalable and extensible.
- Migrated an old design to a new one using AB testing, which had a great impact on decreasing the user dropout in the middle of the process. Worked closely with the designer, business analyst, and product owner to make this happen.
Software Engineer
Info.nl
- Introduced TypeScript to the company and was very persuasive about it. Although initially it was not very welcomed, it was one of the requirements for new projects when I was leaving the company.
- Developed multiple applications for custom Android devices that NS Station's repairers used. Also built a React native module that would connect to a specific QR code scanner camera extension using Java.
- Wrote the technical proposal for a project as the technical lead. Worked closely with the PO, CFO, and service designer to come up with the best possible solution considering the clients' heavy load and request for data.
- Led a team from day zero until the end of the project. Selected the technology stack and discussed these decisions directly with the client. I also worked as a full-stack developer, mainly focused on the back end.
Senior Front-end Developer
Sadad Informatic Corporation
- Developed a command-line interface (CLI) tool that generates and scaffolds a Backbase component using React, TypeScript, and SASS. It would automatically deploy the package to the Backbase website upon changing the code.
- Increased the process of developing a new Backbase component up to 10 times by developing the CLI tool that significantly impacted the team's output, not to mention the frustration and copy-paste error before this.
- Worked on a web3.js application with Etherium and Solidity and client-side integration with MetaMask for a prototype project called Gold Coin Pre-order. This project was demoed successfully to all the bank's stakeholders and got positive feedback.
JavaScript Developer
VestaBoot
- Developed a code generator that greatly impacted the team's output. It could generate full CRUD operation on both the client and server sides.
- Created a complete framework that would assist developers in designing, developing, and deploying a project.
- Led multiple projects from the start to the end, including team selection, technology stack selection, full-stack development, database design, and deployment.
- Built a loyalty system with a very flexible query builder that would enable the client to create complex loyalty plans with a good UX. At the time, our competitors were charging their clients for creating a loyalty plan per plan.
Experience
TradeGame Online
It was deployed on AWS and distributed on GooglePlay and AppStore. The distribution and deployment process was done using a Node.js CLI tool that would integrate Pulumi and AWS CLI to the deployment.
I also developed a custom database migration system that was heavily influenced by Prisma. I am migrating this project as part of a new hobby project similar to an online operating system.
Crypto Trading Bot
Sparrow Directory
https://tntfx.ioThere were many challenges to overcome regarding the project's complex nature. It has some default applications like terminal, explorer, preview, settings, and browser and also contains TradeGame (WIP) as a third-party application.
This project is currently in progress.
Education
Master of Engineering in Computer Engineering
Istanbul Atlas University - Istanbul, Turkey
Bachelor's Degree in Computer Engineering
Babol Noshirvani University of Technology - Babol, Iran
Certifications
Web Application Penetration Testing
Nooranet
Penetration Testing with Kali
Nooranet
Skills
Libraries/APIs
React, Node.js, REST APIs, React Testing Library, React Query, Web3.js, Google Maps API, OpenAI API, TanStack Table
Tools
Git, Webpack, Figma, GitHub, Webpack 4, Prisma, Amazon Simple Queue Service (SQS), Workflow Builder, Babel, Shadcn, Expo, TanStack Router
Languages
JavaScript, TypeScript, CSS, HTML, CSS3, Sass, SCSS, HTML5, SQL, GraphQL, Python
Frameworks
Next.js, Redux, Express.js, React Native, Material UI, Yarn, Flux, Tailwind CSS, JSON Web Tokens (JWT), Jest, tRPC, Cypress
Paradigms
REST, App Development, Test-driven Development (TDD), Unit Testing, API/Services Architecture, Responsive Web Design (RWD), Automated Testing, Agile Software Development, Requirements Analysis, Mobile Development, Microservices, DevOps
Storage
JSON, MySQL, PostgreSQL, Relational Databases, Database Architecture, Databases, Redis, Amazon S3 (AWS S3), PSQL, NoSQL, MongoDB
Platforms
Firebase, Mobile, Docker, Amazon Web Services (AWS), Azure, Vercel, Amazon EC2, AWS Lambda, Blockchain, Kubernetes
Other
Back-end, APIs, Full-stack, Mobile App Development, Front-end, Software Engineering, API Integration, Front-end Development, Responsive Web Apps, Back-end Development, Full-stack Development, Software Architecture, Single-page Applications (SPAs), Pixel Perfect, Responsiveness, Web Applications, Development, Algorithms, Data Structures, Programming, Computer Science, Interviewing, Login & Registration, Web Development, Web App Development, Mobile Apps, Mobile First, Axios, Architecture, Leadership, RESTful Services, Technical Leadership, CTO, Team Leadership, Storybook, Scalability, Responsive Design, User Interface (UI), User Experience (UX), Progressive Web Applications (PWAs), Vite, Drag & Drop, Deployment, Figma to React, Secure Coding, Monorepos, AWS Cloud Architecture, Online Banking, Mobile Banking, Fintech, OAuth, Serverless, Google Play Store, App Store, Remote Team Leadership, Styled-components, Apollo, Amazon RDS, Containerization, Firebase Cloud Functions, CI/CD Pipelines, Cloud, Cross-browser Compatibility, Charts, Crypto, Cryptocurrency Wallets, Push Notifications, Location Tracking, OpenAI, Artificial Intelligence (AI), FastAPI, Solution Architecture, Security, Web Content Accessibility Guidelines (WCAG), Headless CMS, Tailwind UI, Strapi, Radix UI, Large Language Models (LLMs)
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