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Geoffrey MerranGM

Geoffrey Merran

Senior Full-Stack Engineer

800 €/jour
1 projet
Paris, FR
8-15 ans

Délai de réponse moyen : 1h

À propos de Geoffrey

👨‍💻 8+ years Senior Full-Stack Engineer: B2B SaaS, compliance (KYC/KYB/AML) & marketplaces.

🧭 CTO / Founder: shipped and scaled products 0→1 in remote-first teams.

🧱 Architecture + Delivery: from product specs to production, with pragmatic trade-offs.

🧰 Stack: React / Next.js, TypeScript, Node.js, Python (FastAPI), GraphQL, PostgreSQL, AWS

🤝 Working style: clear communication, written updates, fast iteration, and maintainable code

— 🇬🇧

Engineer backend & frontend with strong experience building SaaS platforms end-to-end: product discovery, architecture, implementation, and continuous improvement.

I’ve delivered features in regulated contexts (compliance / identity / risk) and marketplaces, and I like projects where impact matters: reducing manual operations, improving data quality, and shipping great products that can evolve easily.

— 🇫🇷

Ingénieur backend & frontend avec une forte expérience dans la création d’applications SaaS de l’idée à la mise en production, puis dans leurs évolutions (audit, refonte, performance, scalabilité).

Je résous des problèmes métier concrets : automatisation, réduction des opérations manuelles, fiabilisation des données et livraison rapide de fonctionnalités maintenables.

  • Français

    Bilingue ou natif

  • Anglais

    Capacité professionnelle complète

En télétravail uniquement
Travaille majoritairement à distance

Expériences

  • Ondorse
    Senior Full-Stack Engineer
    août 2023 - mars 2025 (1 an et 7 mois)
    Paris, France
    Ondorse provides an all-in-one platform designed to automate and enhance various compliance tasks:
    Automated KYB & KYC, Client onboarding, Case management through tailored workflow, AML Risk Scoring, Scans, AI-Powered remediation, Document collection, Conditionality and risk based on a low-code rule engine.

    - Built a no-code workflow editor that let Customer Success update client workflows in ~10 minutes instead of ~3 days waiting on developers, dramatically accelerating iteration speed and reducing operational bottlenecks, using a visual builder made in React.

    - Built a Rule Editor with live compiler + smart client data imports, enabling Customer Success to configure accounts same-day instead of 3–5 days.

    - Reworked “Power Check” identification algorithm, cutting false positives by 80% via improved fuzzy/attribute matching.

    - Saved hours of manual checks by building a flexible scans system that allows tenants to run account-wide checks on all cases (expiring IDs, missing UBOs, missing data), providing a fast, consolidated view of risks and remediation actions instead of triggering full workflows per case.
    React.js Python FastAPI PostgreSQL Typescript
  • Bookfluencers
    Founder & Senior Full-Stack Engineer
    juin 2023 - Aujourd'hui (3 ans)
    United Kingdom
    Bookfluencers.io is a collaborative marketplace for the French-speaking book market that connects authors with a community of reviewers (“bookfluencers”).

    - Scaled to 3,200+ users as a solo founder, validated product-market fit and shipped the full marketplace (discussion system, mutual author/reviewer requests), by owning product, engineering, and ops on a React/Next.js + Post-graphile/PostgreSQL stack.

    - Added contextual “next-step” actions directly inside conversations, drastically reducing support questions about what to do next by making only the relevant actions available at each stage.

    - Increased by 50% review completion rate by building a recommendation algorithm based on profile completion, past evaluations, availability and deadline reliability.

    - Implemented follow-up automations that increased review completion rate by 18% by sending reminder emails at specific intervals before the deadline.
    React.js Typescript PostgreSQL GraphQL Node.js
  • fxhash
    Full-Stack Engineer
    avril 2022 - mai 2023 (1 an et 1 mois)
    Paris, France
    fxhash is a generative-art marketplace on the tezos blockchain.

    - Improved fxHash UX via a tight Discord feedback loop, contributing to strong community adoption and a noticeable reduction in support tickets by shipping iterative fixes to search, filters, fiat on-ramp (Winter), and batch collection actions.

    - Developed features of fxText, a rich on-chain article editor for Tezos (drafts, Markdown, modular blocks like math, media, embeds, user mentions), contributing to 990 articles minted.

    - Implemented fxParams UI and Harberger-tax “mint tickets” system, contributing to 160 tokens minted via mint tickets, enabling collectors to secure customization access before purchase.
    React.js Typescript Web3

Avis

5,0

sur 1 évaluation

B

Baptiste

fxhash

Avis laissé le 17/05/2022

Excellent développeur. S'est intégré en autonomie au projet et a fourni un travail impeccable, rapide et propre. A su intégrer une codebase existante sans problème, je recommande fortement !

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Formations

  • Master
    EPITECH
    2018

Compétences

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