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Backend-focused software engineer with 9+ years of experience designing and building scalable REST APIs and integrating third-party and AI services into production systems. Former nuclear engineer with a strong analytical foundation, specialized in Python and TypeScript, with growing expertise in Go and Rust. I focus on building maintainable systems by deeply understanding the problem and avoiding unnecessary technical debt. I deliver production-grade software across SaaS, fintech, insurance, legal tech, and AI-powered products, and I’m open to freelance/contract backend and API integration work.…Backend-focused software engineer with 9+ years of experience designing and building scalable REST APIs and integrating third-party and AI services into production systems. Former nuclear engineer with a strong analytical foundation, specialized in Python and TypeScript, with growing expertise in Go and Rust. I focus on building maintainable systems by deeply understanding the problem and avoiding unnecessary technical debt. I deliver production-grade software across SaaS, fintech, insurance, legal tech, and AI-powered products, and I’m open to freelance/contract backend and API integration work.

Slim Beji

Back-End Developer, Software Engineer, Full Stack Developer, +2

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Backend-focused software engineer with 9+ years of experience designing and building scalable REST APIs and integrating third-party and AI services into production systems. Former nuclear engineer with a strong analytical foundation, specialized in Python and TypeScript, with growing expertise in Go and Rust. I focus on building maintainable systems by deeply understanding the problem and avoiding unnecessary technical debt. I deliver production-grade software across SaaS, fintech, insurance, legal tech, and AI-powered products, and I’m open to freelance/contract backend and API integration work.…Backend-focused software engineer with 9+ years of experience designing and building scalable REST APIs and integrating third-party and AI services into production systems. Former nuclear engineer with a strong analytical foundation, specialized in Python and TypeScript, with growing expertise in Go and Rust. I focus on building maintainable systems by deeply understanding the problem and avoiding unnecessary technical debt. I deliver production-grade software across SaaS, fintech, insurance, legal tech, and AI-powered products, and I’m open to freelance/contract backend and API integration work.

Available to hire

Backend-focused software engineer with 9+ years of experience designing and building scalable REST APIs and integrating third-party and AI services into production systems. Former nuclear engineer with a strong analytical foundation, specialized in Python and TypeScript, with growing expertise in Go and Rust.

I focus on building maintainable systems by deeply understanding the problem and avoiding unnecessary technical debt. I deliver production-grade software across SaaS, fintech, insurance, legal tech, and AI-powered products, and I’m open to freelance/contract backend and API integration work.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Work Experience

Back End Developer at Audioliz

November 1, 2023 - January 1, 2025

Designed backend services in Python/FastAPI for an AI-powered call center analytics platform. Built audio processing pipelines handling recordings, transcription, and analysis parsing. Integrated speech-to-text with LLMs to extract insights from customer conversations. Implemented authentication, input validation, and rate limiting for security and reliability. Managed deployment workflows using Heroku and Docker Compose.

Software Engineer at Patent Bots®

October 1, 2022 - Present

Built backend features in Python/Flask supporting complex, data-driven legal workflows for a patent-drafting SaaS platform. Implemented document processing pipelines parsing and manipulating Word documents via OOXML. Built web scraping solutions to collect and process external data sources. Extended frontend functionality and improved user workflows, added automated tests, and containerized components to improve reliability.

Back End Developer at Flitter

February 1, 2022 - September 1, 2022

Designed backend microservices with automated tests for a French auto insurance platform. Integrated third-party APIs to extend platform capabilities.

Full Stack Developer at Caproni

October 1, 2020 - June 1, 2022

Built end-to-end features and evolved the application architecture and database schema across a podcast hosting platform. Created an open-source library (pod2gen) for generating podcast RSS feeds and integrated it to automate podcast publishing workflows.

Software Developer at Lumiwealth

September 1, 2020 - August 1, 2021

Designed the initial architecture of Lumibot, an open-source Python framework for backtesting and deploying algorithmic trading strategies. Built a unified workflow enabling the same strategy code to run in backtesting and live trading. Integrated multiple brokers, including Alpaca and Interactive Brokers. Authored documentation and developer resources to support community adoption.