Caellum LLC Full-Stack Engineer
- Engineered Movie Games (Movietq.com), a real-time multiplayer web game with authentication, schema, deployment, Stripe integration, REST APIs, and scalable backend systems.
Resume
Gabriel Dabbah
Full-stack engineer at Caellum LLC. I build production web products across UI, backend, security, deployment, and AI-assisted workflows.
- Full-stack products
- Real-time systems
- Security & auth
- Cloud deploys
Execution Record
Roles & outcomes
Onyx Technology LLC Software Engineering Intern & Business Analyst
- Developed and audited robust health data-ingestion pipelines handling records of tens of millions of Americans using Azure Data Factory, Databricks, and PyTorch, ensuring strict FHIR compliance.
- Performed data scraping and executed strategies to generate targeted leads.
Howard Community College Java & Python Tutor
- Tutored over 500 hours of Python and Java, setting a new standard for incoming tutors.
Capabilities
The working stack
Primary
Languages & Foundations
PythonTypeScriptJava
Primary
Frontend & UI Engineering
ReactAstroTailwind v4
Static Astro routes, schema-driven content, theme-adaptive cards, reduced-motion-aware motion, and React/Vite clients for interactive products.
Primary
Backend & Real-Time Systems
Node.jsExpressREST APIs
Server-authoritative game loop, hybrid polling plus WebSocket transport, ordered Express middleware, deferred event queues, and scheduled upkeep off the request path.
Primary
Security & Auth
Auth & AuthorizationRate LimitingInput Validation
IPv6 /56 BucketingPrototype-Pollution SanitizationXSS Sanitization
5-limiter rate limiting keyed to real IP, HMAC-signed Cloudflare proxy identity, server-side authorization, session-version revocation, role-gated admin actions, and audit export.
Primary
Cloud, Deploy & Infra
CloudflareDockerPostgreSQL
Cloudflare Pages plus Pages Functions, a Render backend, Supabase/PostgreSQL data, Preview/Production env separation, Dockerized services, and private Tailscale networking.
Primary
AI & Agentic Engineering
Claude CodePrompt EngineeringLocal LLM Hosting
Production work supported by a custom agent-skill library, MCP-oriented workflows, parallel subagents, and local Qwen inference through Ollama on an RTX 4070 Ti.
Supporting
Data & Integrations
API IntegrationPostgreSQLWeb Scraping
FHIR-compliant ingestion with ADF, Databricks, and PyTorch; 55k-film JSONL catalog loading; Stripe payments; and TMDB, Letterboxd, and YouTube integrations.
Supporting
DNS, Email & Deliverability
ResendDNSEmail Routing
Cloudflare Email Routing plus Resend on a Workers-runtime contact endpoint, with SPF, DKIM, DMARC, SMTP relay, and reply_to handling.
Process
Product & Process
Product StrategyTechnical Decision-MakingShipping Production Apps