← Back to site

Guillaume Delore

Product Engineer · Currently based in Riga, Latvia · French citizen

FullStack · AI Applied · Background in finance and applied mathematics

deloreguillaume@gmail.com · guillaumedelore.com · LinkedIn · GitHub

Summary

  • Product-minded full-stack engineer with a background in finance and applied mathematics.
  • 3+ years of full-stack development with Next.js, TypeScript, and Node.js, shipping AI-enabled SaaS products end to end.
  • Production experience building AI-enabled workflows with LangChain, OpenAI, Gemini, Langfuse, LiveKit, and Braintrust.
  • Master's degree in applied mathematics and statistics from Telecom SudParis.

Experience

FounderSoftwarehiring.com, builderbrew.com

2024Present

  • Founded and built Softwarehiring.com, a vertical hiring platform for US companies hiring EU-based software engineers
  • Owned all business and product decisions. Pivoted to a narrower niche and launched builderbrew.com
  • Built frontend, including auth, payment, storage with Next.js, Clerk, Stripe, Zustand, Tailwind, Turborepo
  • Built AI-enabled pipelines to aggregate and analyze hundreds of thousands of jobs with Docker, AWS CDK, AWS Fargate Terraform, Node.js, Langfuse, Openai
  • Built and managed databases with PostgreSQL, Supabase, Neon, Prisma, pgvector, PostGIS, Meilisearch
  • Researched and solved small-scale problems including feed ranking, document parsing, and voice agents with LangChain, Langfuse, Braintrust, LiveKit, and OpenAI.

Co-InvestorHospitality / Real Estate

20232023

  • Explored a $500k–$1M co-investment with a partner for a hotel, B&B, or farm in Portugal, Montenegro, and Poland; searched land plots, handled regulatory paperwork, contacted real estate agents and local officials, evaluated monetization options including hospitality and outdoor activities.

Co-FounderGrabbit

Jan 2023Apr 2023

  • Early-stage startup building a mobile-first online shopping experience.
  • Built a React Native application with Unit.co virtual card payments and delivered a functional in-app shopping MVP.

Community Manager & InvestorDeFi — Lendflare & Kaspa

20212023

  • Community manager for Lendflare, a DeFi lending protocol for Curve/Convex tokens; wrote technical documentation and reviewed smart contracts. Early community member and investor in Kaspa (KAS).
  • 25x net total realized return without insider information or reserved token allocation.

Credit AnalystSociété Générale CIB, Warsaw, Poland

Dec 2020Jun 2021

  • Second rotation of the graduate program as credit analyst for Société Générale corporate activities in Poland.

Internal Auditor / Data AnalystSociété Générale CIB, Hamburg, Germany

Dec 2019Dec 2020

  • First rotation of the graduate program in the internal audit team covering all banking activities in DACH and the Netherlands.

Software Engineering InternFrench Ministry of Defense, Paris

Apr 2019Sep 2019

  • R&D research intern at a government cybersecurity and intelligence research division in Paris.
  • Researched and analyzed BGP protocol technical details.
  • Upgraded an open-source tool to track and analyze different BGP protocol flux.
  • Tech stack: Python, HTML, CSS, YAML, Docker, Kafka, RabbitMQ, Git.

Education

Master's DegreeNational Institute of Telecommunications (Telecom SudParis), France

Sep 2016Sep 2019

Major in applied mathematics and statistics; coursework included stochastic finance, machine learning, and signal processing. Skills: scikit-learn, TensorFlow, PyTorch. Master's exchange at the Technical University of Munich, Germany (Apr 2018 – Sep 2018).

Skills

Languages & Frameworks: JavaScript, TypeScript, Next.js, Node.js, Python, TailwindCSS, Zustand, Go, Shadcn UI, Radix UI

Infrastructure: AWS, Docker, Turborepo, Cloudflare, Vercel, Railway

Data & APIs: GraphQL, SQL, Zod, PostgreSQL, Neon, Supabase, Prisma, Meilisearch, PostGIS, Pinecone, pgvector

Automation & AI: Puppeteer, Playwright, LangChain, OpenAI, Gemini, Langfuse, Braintrust, Cursor, OpenRouter, Bright Data

Product: Product Management, UX/UI Design, Stripe, Polar.sh, Clerk, PostHog, Google Stitch, Semrush, Ahrefs