Software Engineer with 4.5+ years building production web and mobile apps, now expanding into AI/LLM integration. Shipped e-commerce, logistics, and scheduling platforms on Ruby on Rails and React/TypeScript. Recently built RAG-based document analysis and LLM-powered classification systems for a pharma regulatory startup.I work remotely and thrive both solo and on a team. Always open to interesting conversations and opportunities. GitHub: _Website not available. Sign in: https://www.twine.net/signup_ Skills: Ruby on Rails, React, TypeScript, Next.js, Node.js, GraphQL, React Native, LangChain, AWS, Python, PostgreSQL, Docker, Sidekiq, Prisma

Karim Marabet

Software Engineer with 4.5+ years building production web and mobile apps, now expanding into AI/LLM integration. Shipped e-commerce, logistics, and scheduling platforms on Ruby on Rails and React/TypeScript. Recently built RAG-based document analysis and LLM-powered classification systems for a pharma regulatory startup.I work remotely and thrive both solo and on a team. Always open to interesting conversations and opportunities. GitHub: _Website not available. Sign in: https://www.twine.net/signup_ Skills: Ruby on Rails, React, TypeScript, Next.js, Node.js, GraphQL, React Native, LangChain, AWS, Python, PostgreSQL, Docker, Sidekiq, Prisma

Available to hire

Software Engineer with 4.5+ years building production web and mobile apps, now expanding into AI/LLM integration. Shipped e-commerce, logistics, and scheduling platforms on Ruby on Rails and React/TypeScript. Recently built RAG-based document analysis and LLM-powered classification systems for a pharma regulatory startup.I work remotely and thrive both solo and on a team. Always open to interesting conversations and opportunities.

GitHub: Website not available. Sign in: https://www.twine.net/signup

Skills: Ruby on Rails, React, TypeScript, Next.js, Node.js, GraphQL, React Native, LangChain, AWS, Python, PostgreSQL, Docker, Sidekiq, Prisma

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Experience Level

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Expert
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Expert
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Language

English
Advanced
Russian
Fluent
Polish
Intermediate

Work Experience

Full-Stack Software Engineer at CreativeCo Studio
October 1, 2024 - Present
Built a RAG-based document analysis system for an AI-powered pharma regulatory startup using LangChain, AWS Textract, and Langfuse, automating citation verification across 10K+ page libraries and reducing manual review from hours to seconds. Led development of an AI-powered employee scheduling system for golf clubs with profile management and automated schedule forecasting. Implemented a high-performance ML-powered auto-fill for the shopping cart, eliminating repetitive manual input. Fully refreshed the UI/UX of the logistics mobile app (Android, iOS), achieving a 79% load-time reduction on the main page. Optimized the most heavily loaded Sidekiq jobs through API caching, batching, and custom retry logic.
Backend Ruby on Rails Developer at Itransition Group
September 1, 2021 - October 1, 2024
Reduced test execution time by 30% and improved CI by integrating security and performance checks; built a five-level deep Reddit-style nested comments API for a mobile app; created API clients for Huawei, Firebase, and Apple Push Notifications via Amazon SNS; integrated JWT/OAuth 2.0 (Google, Facebook) and payments (Stripe, Huawei); adapted the Android app for Huawei platform; mentored teammates through code reviews and onboarding sessions.

Education

Bachelor of Computer Science at BSUIR - University of Informatics, Minsk
January 1, 2019 - January 1, 2023

Qualifications

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Industry Experience

Software & Internet, Professional Services