14+ years crafting digital products

Franck Diomande

Lead Full-Stack Web Developer

Taking ideas to production. I design, build, and ship end-to-end web applications with modern tools and best practices.

Franck Diomande

Frontend

TypeScript
React
Tailwind CSS

Backend

Node.js
NestJS
Python
FastAPI

Databases

PostgreSQL
MongoDB
Cassandra
Redis
RabbitMQ

DevOps

Docker
Kubernetes
AWS
Terraform

AI & Agent

LangChain
LanceDB
OpenRouter

What I do

Skills & Expertise

Front-End

Optimize website performance and accessibility

Back-End

Design, develop, and maintain robust server-side applications

AI & Agent

Build intelligent agents and AI-powered product features

Dev & Ops

Design and implement scalable and resilient systems

Leader

Guide and mentor a team of developers

Tools

Facilitate smoother collaboration among team members

Crafting interfaces

Front-End Development

front-end.tsx
front-end.tsx skills.ts
1 /**
2  * Throughout my career, I've honed my expertise as a
3  * Front-End Developer, refining and perfecting my skill set.
4  */
5 export const profile = `Proficient Front-End Developer with a proven track record in...
6   ... crafting immersive user experiences. Extensive expertise in HTML, CSS` ;
7
8 const languages : Stack[] = [
9
HTML
HTML
CSS
CSS
JavaScript
JavaScript
TypeScript
TypeScript
10 ];
12 const frameworks : Stack[] = [
13
React
React
Tailwindcss
Tailwindcss
14 ];
16 const unitTest : Stack[] = [
17
Jest
Jest
Bun test
Bun test
18 ];
20 const buildTools : Stack[] = [
21
Vite
Vite
Bun
Bun
22 ];
24 const others : Stack[] = [
25
NPM
NPM
Eslint
Eslint
Biome
Biome
26 ];
Front-End
TypeScript React UTF-8 Spaces: 2

Building the core

Back-End Development

Back-End Skills Dashboard
All systems operational
Overview

My tenure in major corporations has provided me with invaluable expertise in resolving security concerns and crafting resilient applications. My expertise lies in the realm of Back-End Development, where I specialize in architecting and crafting the functional core of applications. Proficient in handling databases, server-side logic, and ensuring seamless data integration, my skills ensure robust, efficient, and secure back-end systems that power dynamic and high-performing applications.

Languages 3
Python
Python
Nodejs
Nodejs
SQL
SQL
Frameworks 2
NestJS
NestJS
FastAPI
FastAPI
Unit test 3
Jest
Jest
Bun test
Bun test
PyTest
PyTest
Databases 4
Redis
Redis
Postgres
Postgres
MongoDB
MongoDB
Cassandra
Cassandra
Others 3
APIs
APIs
Microservices
Microservices
RabbitMQ
RabbitMQ
99.9% uptime Secure
Node v22 Python 3.12

Intelligent systems

AI & Agentic

AI & Agentic Agent Chat
Online
SYSTEM prompt

Specialized in building intelligent, autonomous AI systems that reason, plan, and execute complex workflows. From designing multi-agent architectures to implementing RAG pipelines and integrating LLMs through unified routing layers, I deliver AI solutions that go beyond simple prompting — creating agents that think, collaborate, and adapt.

just now USER

What tools and frameworks are in your stack?

AGENT responding...
tool_use: llm_routing 1 loaded
OpenRouter
OpenRouter
tool_use: frameworks 2 loaded
LangChain
LangChain
CrewAI
CrewAI
tool_use: vector_databases 2 loaded
LanceDB
LanceDB
Pinecone
Pinecone
tool_use: patterns 2 loaded
RAG
RAG
MCP
MCP
tool_use: languages 2 loaded
Python
Python
TypeScript
TypeScript
Ask the agent...
Multi-Agent RAG Pipeline

Shipping with confidence

Dev & Ops

I orchestrate the seamless harmony between development and operations. My expertise lies in crafting pipelines, automating workflows, and fortifying the scalability and reliability of cloud infrastructure.

01
Docker
Containerization running

Docker

Containerizing applications for consistent environments across development, staging, and production.

02
Kubernetes
Orchestration running

Kubernetes

Orchestrating containerized workloads with auto-scaling, self-healing, and rolling deployments.

03
AWS
Cloud running

AWS

Architecting cloud infrastructure with EC2, S3, Lambda, RDS, and other managed services.

04
Terraform
IaC running

Terraform

Defining infrastructure as code for reproducible, version-controlled cloud environments.

Beyond the code

Soft Skills

I am a dedicated professional known for my proficiency in a diverse array of tools such as Figma, Sketch, Jira, Notion, and Linear. Beyond technical expertise, my strength lies in my soft skills, which significantly impact my work:

Adaptability

I swiftly acclimate to new tools and methodologies, embracing innovation and remaining flexible to the dynamic demands of the industry. This allows me to seamlessly navigate between platforms like Figma and Sketch for design, while efficiently managing tasks and workflows through Jira, Notion, and Linear.

Collaboration

My adeptness in collaborative platforms like Notion fosters effective teamwork. I thrive on transparent communication, ensuring that all team members are on the same page, regardless of the tools or methods we use.

Problem-Solving

I approach challenges with a problem-solving mindset. My ability to identify issues and craft efficient solutions is a cornerstone of my work ethic.

Organization and Planning

Utilizing tools like Jira and Linear, I meticulously plan and organize projects, ensuring smooth workflows, timely deliveries, and a structured approach to complex tasks.

Creativity and Design Thinking

Platforms like Figma and Sketch are my playground for ideation and design. My eye for detail and creative flair allow me to craft visually appealing and user-friendly solutions.

Figma
Figma
Sketch
Sketch
Jira
Jira
Notion
Notion
Linear
Linear

Where I've been

My Experiences

Ooneex
Ooneex
Lead Developer

·

Oct 2024 — Mar 2026

·

1.5 years

EdTech / SaaS
Ooneex is a vertical SaaS platform for medical education that unifies content management, scheduling, assessments, and analytics into a single classroom workspace. It empowers educators and students to organize, study, and track entire courses from one place.
Key Contributions
  • Built an interactive classroom dashboard providing high-level course overviews with year-level tagging, ownership, and participant management
  • Developed a rich resource library supporting books, videos, images, notes, MCQ decks, flashcard decks, and clinical case decks with AI-powered chat capabilities
  • Engineered an agenda and events management system for tutorials, labs, workshops, and exams with priority tracking and weekly analytics
  • Implemented a folder-based content organization system with per-topic resource counts, favorites, and granular access control
  • Created a resource analytics engine with format distribution charts and top-folder rankings
  • Designed a credits-based monetization system separating free and premium content folders
Skills Developed
SaaS architecture & multi-tenant design AI integration (RAG, conversational agents) Real-time data analytics & dashboards Payment & credits system design Team leadership & code review
Tech Stack
React
React
Tailwind CSS
Tailwind CSS
TypeScript
TypeScript
Node.js
Node.js
Python
Python
Docker
Docker
AWS
AWS
Terraform
Terraform
LangChain
LangChain
Mata Capital
Mata Capital
Lead Developer

·

Sep 2020 — Oct 2024

·

4 years

Real Estate / FinTech
Mata Capital is an independent real estate investment firm managing approximately €2.4 billion in assets across France and Germany. The firm combines investment management, investor solutions, and asset management with a strong focus on innovation, ESG, and long-term value creation.
Key Contributions
  • Built internal tools for an independent, management-owned investment firm operating with full strategic autonomy across fund decisions
  • Developed an integrated asset management platform covering the entire value chain — acquisition, active management, property operations, and disposal
  • Engineered cross-border investment workflows supporting the Franco-German positioning with offices in Paris, Lyon, and Hamburg
  • Implemented portfolio dashboards for three distinct strategies: Core Plus (€1.4B), Value-Added (€810M), and Private Equity Real Estate (€150M)
  • Created data-driven decision tools leveraging advanced analytics to optimize operational management across 70+ professionals
  • Built ESG reporting and responsible investing modules integrating sustainability metrics at the heart of investment strategies
Skills Developed
Financial data modeling & portfolio analytics Cross-border compliance workflows ESG reporting & sustainability tracking Data-driven decision support tools Scalable architecture for regulated environments
Tech Stack
React
React
Tailwind CSS
Tailwind CSS
TypeScript
TypeScript
Node.js
Node.js
Python
Python
Docker
Docker
AWS
AWS
Terraform
Terraform
LangChain
LangChain
Delta RM
Delta RM
Lead Developer

·

Jan 2019 — Sep 2020

·

1.5 years

GRC / SaaS
Delta RM is a French SaaS GRC platform that centralizes and digitalizes enterprise risk management — risk mapping, incidents, insurance, internal control, audit and prevention — in a powerful, secure and highly configurable tool. Built “by risk managers for risk managers”, it serves companies of all sizes with unlimited usage, strong data security in France, rich integrations, and collaborative features designed to improve decision-making and risk culture.
Key Contributions
  • Built a risk mapping module for enterprise-wide risk identification, analysis, and interactive dashboards
  • Developed an incident and claims management system with full lifecycle tracking and reporting
  • Engineered an insurance management module covering policies, coverages, and linked risks
  • Implemented risk prevention action plans with assignment, deadlines, and follow-up workflows
  • Created an internal control engine supporting level 1 and level 2 controls with evidence collection
  • Delivered an internal audit module for audit planning, execution, findings, and recommendation tracking
Skills Developed
GRC domain modeling & risk engines Highly configurable multi-tenant SaaS Compliance-grade data security Workflow & approval system design Collaborative enterprise tooling
Tech Stack
React
React
Python
Python
Node.js
Node.js
Docker
Docker
AWS
AWS
Air Liquide
Air Liquide
Senior Developer — Freelance

·

Jan 2018 — Sep 2019

·

1.5 years

Industry / Healthcare
Air Liquide is a global leader in industrial and medical gases, technologies, and related services, operating in 59 countries and serving over 4 million customers and patients. The group supports key sectors like industry, healthcare, energy transition, and semiconductors, combining strong financial performance with sustainability goals such as reducing CO₂ emissions and improving healthcare access worldwide.
Key Contributions
  • Built internal platforms for a world leader in gases, technologies and services operating at scale across industry and healthcare
  • Engineered multi-region applications supporting operations across 59 countries and a workforce of roughly 65,000 employees
  • Developed customer and patient portals serving a base of over 4 million users worldwide
  • Implemented tooling around core molecules and technologies — oxygen, nitrogen, hydrogen, CO₂ — for industry, energy transition, and health
  • Delivered financial and investment dashboards tracking multi-billion-euro sales, net income, and capital allocation decisions
  • Created sustainability reporting modules tracking CO₂ reduction targets and extra-financial commitments across environment, health, and inclusion
  • Contributed to R&D tooling supporting 5,600+ researchers, patent pipelines, and heavy data and digital initiatives
  • Built sector-specific integrations spanning multinationals, semiconductors, hospitals, and local craftspeople
Skills Developed
Enterprise-scale multi-region platforms Industrial & healthcare domain modeling Sustainability & ESG reporting High-availability customer portals Data-intensive R&D tooling
Tech Stack
React
React
Node.js
Node.js
Python
Python
AWS
AWS
Facebook
Facebook
Software Engineer

·

Sep 2012 — Oct 2017

·

5 years

Big Tech
During my academic journey, I had the privilege of joining Facebook as part of my engineering curriculum. Working alongside some of the industry's finest engineers, I gained invaluable insights into cutting-edge technologies and honed my skills in collaboration and knowledge sharing. After three enriching years, I joined the back-office team to help develop and improve the company's internal tools, gaining deep exposure to international, multidisciplinary teamwork, agile methodologies, and complex problem-solving in a dynamic professional environment.
Key Contributions
  • Contributed to R&D initiatives alongside senior engineers, exploring cutting-edge technologies and patterns
  • Designed and implemented algorithms powering back-office tooling and data-processing pipelines
  • Built internal APIs and integrated a wide range of external APIs across the back-office ecosystem
  • Authored technical documentation for internal tools to accelerate team onboarding and knowledge sharing
  • Added new features to existing internal tools within a 80-engineer international team
  • Wired microservices into official APIs and implemented a scalable microservices architecture
  • Optimized application performance and hardened security across back-office services
  • Collaborated closely with international development teams using agile methodologies
Skills Developed
Low-level programming in C Microservices architecture & API design Algorithm design & performance tuning Large-team agile collaboration Technical documentation & knowledge sharing
Tech Stack
React
React
Node.js
Node.js
Python
Python
SQL
SQL
Wiztrust
Wiztrust
Software Engineer

·

Oct 2011 — Sep 2012

·

1 year

PR Tech / SaaS
Wiztrust is an all-in-one, GDPR-compliant PR and communications platform that helps corporate communication teams manage newsrooms, media databases, multichannel press distribution, and performance analytics. Its Wiztrust Protect module leverages blockchain certification to secure and verify corporate information, fighting misinformation and strengthening trust with media, investors, and stakeholders.
Key Contributions
  • Built an all-in-one PR management platform unifying newsrooms, CRM, campaigns, emailing, newswires, social media, and media monitoring with personalized press reviews
  • Developed customizable, SEO- and GEO-optimized newsrooms tuned for search engines and generative engines, meeting banking- and insurance-grade security standards
  • Engineered Wiztrust Protect to certify and timestamp corporate content on blockchain, proving authenticity and reducing corporate liability against fake news
  • Created a public one-click verification portal enabling journalists and investors to instantly validate the origin and integrity of corporate information
  • Implemented the Wiztrust Data analytics suite combining automated and human-curated insights with quarterly dashboards and KPIs to measure communication ROI
  • Delivered enterprise-grade compliance and security — full GDPR, EU hosting on Google Cloud, SSO, granular roles, and high SLAs for listed companies and financial institutions
Skills Developed
Blockchain certification & content integrity Multichannel distribution & CRM workflows SEO / GEO optimization for newsrooms GDPR compliance & enterprise security Analytics pipelines & KPI dashboards
Tech Stack
React
React
Node.js
Node.js
Python
Python
AWS
AWS