Arnaud Leymet

A dedicated Senior Solutions Architect with a proven ability to lead projects and drive software development initiatives. I thrive in dynamic environments, leveraging my strong technical skills, deep product knowledge and collaborative approach to drive innovation and deliver composable and impactful solutions. I am seeking challenging opportunities that promote professional growth and allow me to contribute to transformative projects.

Experience

Bouygues Telecom
Senior Solutions Architect, Bouygues Telecom · Freelance
  • Supported the second largest french telco company through various roles and projects, focusing on the architecture, design, and implementation of innovative solutions —both public and internal— that significantly enhanced efficiency and customer satisfaction.
  • Advocated best practices through ADRs, OpenAPI, DRY, and KISS principles, while embracing open-source. Fostered the development of a robust ecosystem of DX-friendly internal tools in support of significant projects:
Copilot: genAI sales assistant
  • Lead architect, led the design and delivery of a genAI hybrid assistant with extensive capabilities.
  • Shipped the first integration of a genAI-powered sales journey, developed by a tiny Feature Team.
  • A deeply integrated solution that leveraged the best of both AI and user interface paradigms.
  • Stack: Google Vertex Agents, Playbooks, Gemini, CloudRun, RAG, search, GraphQL, OpenAPI.

Try it out · LinkedIn

Disco: genAI for internal queries
  • Originator, Lead Architect and maintainer of Disco, the internal tool that acts as a gateway to all internal services.
  • Allowed collaborators to ask questions and explore the data.
  • Stack: Astro, React, GraphQL, TypeScript, OpenAPI, Python, ChatGPT.
GraphQL: gateway to internal APIs
  • Leveraged the power of HATEOAS to provide a unified aggregated schema for internal APIs, both authenticated and public.
  • Delivered a tailor-made GraphQL console as a standardized resource consumption sandbox.
  • Delivered millions of queries daily.
  • Stack: GraphQL Java, Maven, GraphQL Mesh & Hive.

Code repository

Mcare: customer care app
  • Lead Architect, led the transition from dual native apps to a single React Native typed codebase.
  • Integrated Trilogy and GraphQL.
  • Provided training for teams on React Native and TypeScript.
  • Rationalized mobile developer profiles.
  • 10M+ downloads.
  • Stack: TypeScript, React Native.

App Store · Google Play

A7: CDN for front assets
  • Originator, Lead Architect and maintainer of A7, the consolidated asset hosting solution for front-end applications. Think a better unpkg.
  • Delivered millions of assets daily, with a 99.99% availability.
  • Stack: Nginx, NJS.

Code repository

ACO: customer care web app
  • Tech Lead, part of a 14 developer team, fostering both business delivery and craftsmanship.
  • Led the recruitment of the engineering team.
  • Modernized the Backbone codebase with ReactJS, Trilogy and GraphQL.
  • Stack: ReactJS, GraphQL, MobX, Docker, Kubernetes, Helm, Microfrontends, Gitlab CI, Sonar, TypeScript, trilogy.
Enia
Partner, Enia
  • Participated in the Biogas development in France with the first biowaste marketplace mobile app.
  • Enia accelerates the development of agricultural methanizers and bio-waste units.
  • Leveraging a mapping of over 800 sources, Enia also supplies and manages 900kT of agricultural, industrial, and community bio-waste each year.
  • Relied on geospatial data in the service of land identification.
Codename
Founder & CEO, Codename
  • Led a software development company, focused on building prime digital products and services.
Onegraph: query the data graph
  • Interconnect APIs of multiple sources and mesh them seamlessly, in one GraphQL schema.

Try it out

Papers: plain text editor
  • Forget about the formatting, focus on the content. A plain text editor with a twist.

Try it out

Flow: visualize, adjust and arbitrate
  • Developed a Sankey diagram generator to visualize key data flows.

Try it out

Dash: automated Docker dashboard
  • Drop-in minimalist Docker dashboard with services auto-discovery

Try it out

Proptech & conversational
Atlas: cartographic dataviz
  • Identify and qualify prospects based on geographic areas.
  • Enable data visualization of geospatial data.
View: automated real estate NLP
  • Multi-source criteria-focused hyper-targeted house hunting experience.
Bubl: your conversational agent
  • Build, test and share conversational assistants. Make your own private-by-design offline-first real time chatbot, with native support for multi-turn dialogs.
Reva: Real Estate Virtual Agent
  • Reva, "Siri for Real Estate" leverages AI to make house hunting a breeze. First deeply data-integrated chatbot for real estate with the ability to have a fluid conversation with the agent.
  • Shortlisted as a key innovative proptech startup @ RENT 2017.
  • Won the competition for the best chatbot tech of 2017 @ Microsoft.
  • SaaS model with premium customers such as Nexity, Pierre & Vacances.
Botml: chat markup language
  • Build scripted multi-turn dialog assistants with raw text and a bit of markup.

Code repository

Exit: IP assets acquired by Enia
Sonetin
Co-founder & CTO, Sonetin
  • Co-founded a SaaS startup with a lean and disruptive model in the enterprise social network space.
  • Recruited a worldwide distributed team of excellence in both sales and tech.
  • Succesfully obtained both the JEI status and the CIR in regards of our R&D roadmap on subjects like Natural Language Processing, Collective Intelligence, Recommendation with ML.
Etheryl
Tech Lead, then CTO, Etheryl
  • Led a major overhaul of the product: responsive design, mobile layout; migrated the solution from Rails 2.3 to 3.1.
  • Successfully advocated for the role of CTO, gaining board approval.
Picuous
Co-founder & CTO, Picuous
  • Designed and created a full-stack SaaS product from scratch in Ruby on Rails on Heroku and AWS platforms.
  • My roles included the solution design, its development and infrastructure design.
Accenture
Tech Lead, Accenture
  • Led the development team (4) responsible of the Front-End for ErDF's COSY project in both an offshore and onshore context. As the SAP Enterprise Portal technical expert, I successfully helped maintain and enhance the front-end solution.
Lead Developer, Kayboo
  • Designed and developed the User Interface of the freelance marketplace service. This implied a lot of Ruby on Rails and jQuery efforts.
Accenture
Software Engineer, Accenture
  • Managed the technical development of multiple HR e-services enterprise portal projects including for Air France and Disney.
  • Lead developer of the front-end portals.
IBM
Web Developer, IBM

Maintained a custom PHP solution for the French Ministry of Economy and Finance.

SEIO
Web Developer, SEIO

Designed and developed websites, web apps and client/server software for multiple clients besides my engineering studies.
Mainly using front-end technologies.

Education

MIT
Application Designer Certification, MIT
  • As part of the Accenture Solutions Delivery Academy, I obtained this certification that focuses on Software engineering fundamentals, Application design, and Application testing in real world scenarios.
ESEO
MSc majoring in Computer Sciences, ESEO France

Major: IT, networks and telecommunications.