Steeve Ortuani

Built a real-time 3D mapping library that renders OpenStreetMap as a globe in the browser, at planetary scale. Proprietary, self-funded platform, running in production: CityMap3D.

• Designed the full distributed architecture: OSM-to-3D-tiles compilation pipeline (workers on a Beanstalk queue, S3 storage, tiles pushed in real time over Socket.IO), rendered as a spherical globe with one continuous camera from 100 m to 40,000 km, no mode switch.
• Built the custom 3D engine (Three.js + GLSL3): 18 hand-written shaders (SSAO, fog, edge detection, tonemapping, color grading), cascaded shadow maps, astronomical sun/moon lighting and a 1,660-star catalogue.
• Rendered objects at scale in the browser: GPU instancing (131,072 instances per mesh, pooled across tiles), LOD, per-tile culling.
• Optimized the tile generation pipeline through measurement: identified the bottleneck (polygon difference, 85 to 97% of total time), applied a targeted fix, -49% overall generation time.
• Built the multilingual search with no third-party API: free-text geocoding and local-LLM embeddings over 166 OSM meta-categories (8,797 phrases, 10 languages), PostGIS proximity resolution.
• Operate the platform in production: 8 hosts, 20 Ansible playbooks, 7 supervised services, strict-TypeScript monorepo of ~70k lines.

Vue 3 · TypeScript · Three.js · GLSL3 · Hono · Socket.IO · PostgreSQL/PostGIS · Beanstalk · S3 · Ollama · FlatBuffers · Ansible

Hands-on technical ownership of the frontend at Tenacy, a cybersecurity governance SaaS company.

• Modernized a legacy codebase (Vue 2, Webpack, Node 14, mixins, jQuery injected on the Vue instance): moved up to Vue 2.7 to leverage the Vue 3 backports, migrated the build system from Webpack to Vite.
• Audited every layer of the application and built the full Vue 3 migration strategy: mixins to typed composables, Vuex to Pinia, custom validation with Zod, Design System + Tailwind. Phased plans, identified blockers and dependencies, designed to ship continuously without breaking production.
• Designed and built the Design System: charts, forms with advanced validation, modals, date pickers. Documented and unit tested.
• Quality and conventions: strict TypeScript in CI, ESLint v9, stabilized Vitest and Cypress tests, frontend guidelines and code review standards.
• Hiring (technical interviews, candidate evaluation, criteria definition) and mentoring through code reviews and pair programming.
• Close work with the product team: continuous feature delivery (dashboards, PDF exports, internationalization, feature flags).

Vue 2.7 (Composition API) · TypeScript · Vite · Tailwind CSS · Pinia · Chart.js · Vitest · Cypress · Storybook

Technical ownership of the frontend at Scortex, an AI visual-inspection platform: computer vision detecting manufacturing defects straight off the production line.

• Re-architected the Vue 2 MPA into a Vue 3 SPA (Composition API, script setup): reactivity, performance and maintainability.
• Completely reorganized the file architecture along Vue best practices, and integrated the full design overhaul.
• Built a cross-disciplinary feature in close collaboration with the product and hardware teams.
• Led the Cypress test strategy and the technical-debt reduction: analysis, prioritization, fixes.
• Fullstack contributions on the Python backend.
• Hired my own successor: technical interviews, selection, then training and handover of the front-end scope.

Vue 3 · TypeScript · Python

Founded and run Sokod, my software engineering company: technical direction in consulting (including Tenacy and Scortex, detailed in their own entries) and continuous investment in my own products through Sokod Labs.

• Video recommendation engine (2025 engagement, client under NDA): TikTok-style selection algorithm. Per-user interest centroids via k-means over embeddings, a weighted mixing desk blending ranking strategies (trending, proximity to interest clusters, collaborative picks).
• Short technical direction and architecture engagements for external clients.
• One year of technical mentoring of freelance developers, through the MentorTech Fr platform.
• NeoTrading (internal product): a platform to build, backtest and deploy crypto trading algorithms. Exchange abstraction layer, indicators, strategies, money management, distributed real-time processing.
• BeansWatch (internal tool): desktop app to monitor and operate Beanstalkd queues.
• DesignSystem (internal tool): local generative branding pipeline (FLUX + LLM) producing logo, palette, tokens and components.

TypeScript · Vue 3 · Node.js · Hono · PostgreSQL · Socket.IO

Technical direction of Sagitta Pharma, a digitalized pharmaceutical wholesaler linking laboratories and pharmacies.

Management :

• Managed a team of 15: team growth and cohesion, lead development, recruitment.
• Needs definition, architecture and delivery oversight.
• Handled legal constraints across projects (GDPR, certified health-data hosting).

Development :

• Built an extractor installed on the servers of around 2,000 pharmacies, interfaced with their databases to stream stock and sales data in real time: several terabytes of data aggregated on an Elasticsearch cluster.
• Built a SaaS (web and mobile) for pharmacies, pharmacy groups and laboratories.
• Built the pharmaceutical wholesaler e-commerce linking laboratories and pharmacies.
• Configuration systems for laboratory promotions and white-label setups for pharmacy groups.

Node.js · Laravel · Symfony · Angular · Elasticsearch · MySQL · Redis · Linux

Full technical direction of Publicite Moi, an early-stage AdTech startup. Hands-on CTO with a team of 2 developers.

• Rebuilt the product core from V1 to V2: server architecture, front and back.
• Set up data tooling to drive the AARRR funnel (Acquisition, Activation, Retention, Referral, Revenue).
• Built the product's companion surfaces: mobile applications, browser plugins.
• Set up the development environments, managed the team and prioritized work to ship the MVP.
• Built the BPI public-funding application and secured the grant; took part in investor meetings.

High-traffic poker and casino gaming websites. In charge of the casino games, from engine to economy.

• Built the HTML5 games (blackjack, slot machines, casino war, scratch cards) as reusable skeletons themed with the design team: one slot-machine engine, many games through reskinning.
• Designed the redistribution strategy: wins paid out as digital scratch-card tickets rather than direct tokens, to keep fine-grained control over token redistribution.
• Set up token earning through ad viewing.
• Kept high-traffic sites under load: multi-level caching (SQL, memcache, appcache), static file serving, MySQL replication.

PHP · JavaScript · MySQL · HTML5

Founded and ran my first company: publishing profitable B2C community websites, operated solo. Two dating sites with webcam chat (250,000 users), a musician-matching site, a dietetic cooking site.

• Published and operated my own products end to end: front and back development, infrastructure, moderation, support.
• Built the dating sites' real-time webcam chat: HTML / JS chat backed by a Python server, webcam streams in Flash through Red5 (open-source RTMP server).
• Built acquisition and revenue: SEO and audience monetization.
• Built my own tools: MVC framework, CMS, prospecting CRM.
• Managed external contractors.
• Kept the products running quasi-passively from late 2014, alongside my salaried roles, until the company's voluntary liquidation in 2017.

PHP · Python · MySQL · JavaScript · Node.js · Red5