Hi, I’m a backend and Web3 developer with 5+ years of experience in an international environment. I have been building scalable backend web services for different kinds of products, such as crypto tax and portfolio tracking services, where I had to maintain systems, create new features, ensure reliability, and retrieve hundreds of thousands of data points from the blockchain. I also worked on Real World Assets applications, where I had to manage and create new features and where transparency and deterministic behavior were important for users, as well as on an internal tool to enhance architects’ and engineers’ daily workflows. These roles improved my skills in managing my own projects, being independent, and being solution-oriented, working with my colleagues on projects that make sense. I write clear, maintainable code, and I like building things that last. At the end of the day, I want to be proud of the solutions I’ve built. I focus on simple solutions, good architecture, and features that are useful for the product. I would be happy to answer any other questions you may have or simply have a nice conversation. Best regards, Loris

Hi, I’m a backend and Web3 developer with 5+ years of experience in an international environment. I have been building scalable backend web services for different kinds of products, such as crypto tax and portfolio tracking services, where I had to maintain systems, create new features, ensure reliability, and retrieve hundreds of thousands of data points from the blockchain. I also worked on Real World Assets applications, where I had to manage and create new features and where transparency and deterministic behavior were important for users, as well as on an internal tool to enhance architects’ and engineers’ daily workflows. These roles improved my skills in managing my own projects, being independent, and being solution-oriented, working with my colleagues on projects that make sense. I write clear, maintainable code, and I like building things that last. At the end of the day, I want to be proud of the solutions I’ve built. I focus on simple solutions, good architecture, and features that are useful for the product. I would be happy to answer any other questions you may have or simply have a nice conversation. Best regards, Loris

Available to hire

Hi, I’m a backend and Web3 developer with 5+ years of experience in an international environment. I have been building scalable backend web services for different kinds of products, such as crypto tax and portfolio tracking services, where I had to maintain systems, create new features, ensure reliability, and retrieve hundreds of thousands of data points from the blockchain. I also worked on Real World Assets applications, where I had to manage and create new features and where transparency and deterministic behavior were important for users, as well as on an internal tool to enhance architects’ and engineers’ daily workflows.

These roles improved my skills in managing my own projects, being independent, and being solution-oriented, working with my colleagues on projects that make sense. I write clear, maintainable code, and I like building things that last. At the end of the day, I want to be proud of the solutions I’ve built. I focus on simple solutions, good architecture, and features that are useful for the product.

I would be happy to answer any other questions you may have or simply have a nice conversation.

Best regards,
Loris

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Experience Level

Expert
Expert
Expert
Expert
Expert

Language

French
Fluent
English
Advanced
Japanese
Intermediate

Work Experience

Backend Developer at Artrade
May 1, 2025 - December 1, 2025
Built and maintained the backend (asynchronous REST routes, database, business logic) with features including raffle winners, auctions, booster packs, and buyback; integrated Solana wallet transfers to users with careful handling to avoid duplication; added real-time live updates via Socket.IO; improved reliability via centralized error handling, Sentry alerts, layered architecture, and validation.
Systems Analyst / Engineer at Greisch Engineering
September 1, 2019 - April 1, 2022
Led system analysis and architectural design to modernize a legacy platform used by engineering and architectural teams; delivered automated email archiving; implemented CI/CD; built scalable Web APIs in .NET and Node.js with PostgreSQL and caching; improved internal workflows and information access across projects.
Backend & Full-Stack Developer at Pafin
May 1, 2023 - February 1, 2025
Engineered scalable backend services in Python with PostgreSQL, Twirp RPC, and JSON-RPC blockchain integrations; asynchronous execution with retries and caching for real-time data; decoded millions of DeFi transactions; integrated Web3 libraries; built the frontend from design assets using Next.js and TypeScript; performed daily code reviews and refactoring to improve code quality and maintainability.

Education

Bachelor Information Technology at Liège, Belgium
September 1, 2016 - June 1, 2019

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment
    paper Cryptact

    I provided DeFi data to the most popular Japanese crypto tax solution and built a new portfolio tool to strengthen Pafin’s DeFi offering. A key part of the work was decoding dapp smart contracts across several blockchains to retrieve where assets were stored (liquidity, staking, rewards) and to perform advanced transaction decoding for tax purposes. This allowed us to calculate taxes correctly and give users a clear picture of their holdings.

    https://www.twine.net/signin

    paper Cryptact

    I provided DeFi data to the most popular Japanese crypto tax solution and built a new portfolio tool to strengthen Pafin’s DeFi offering. A key part of the work was decoding dapp smart contracts across several blockchains to retrieve where assets were stored (liquidity, staking, rewards) and to perform advanced transaction decoding for tax purposes. This allowed us to calculate taxes correctly and give users a clear picture of their holdings.

    https://www.twine.net/signin

    paper Artrade

    Artrade is a French platform for real-world assets (RWA). It allows users to purchase luxury goods through Solana in a transparent and deterministic way. The platform originally offered discounted items through raffles, and now includes auctions and booster packs.

    https://www.twine.net/signin

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