Gabriel Dabbah

Resume

Gabriel Dabbah

Head of Tech 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
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Execution Record

Roles & outcomes

Head of Tech (Full-Stack Software Engineer)Caellum LLCJan 2026 - Present
  • Engineered MovieTQ (Movietq.com), a real-time multiplayer web game with authentication, schema, deployment, Stripe integration, REST APIs, and scalable backend systems, serving 300+ unique players.
  • Developed Proficio (useproficio.com), a study platform for med students that utilizes scraping, machine learning models, and LLMs to create study guides tailored for each student.
  • Created BrandCrafter (brandcrafter.app), an agentic AI workflow SaaS app that generates entire branding through a PWA, CLI, MCP (Model Context Protocol), and API.
Software Engineering Intern & Business AnalystOnyx Technology LLCOct 2022 - Jul 2023
  • 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.
  • Collaborated with leadership in daily standups to align technical, strategic, and business goals.
Java & Python TutorHoward Community CollegeOct 2021 - Oct 2022
  • Tutored over 500 hours of Python and Java, setting a new standard for incoming tutors.

Capabilities

The working stack

Primary

Languages & Foundations

PythonTypeScriptJava
JavaScriptSQLCC++C#HaskellOCamlDafnyMATLAB

Primary

Frontend & UI Engineering

ReactAstroTailwind v4
TypeScriptViteHTML/CSSthree.jsDesign SystemsResponsive DevelopmentAccessibilityContent CollectionsRSS / Sitemap / SEO

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
WebSocketsState MachinesMiddleware Pipelinesnode-cron JobsEvent QueuesIn-Memory Data ModelingAPI Integration

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
httpOnly JWTbcryptCSRF / Origin ChecksHMAC SigningRLSRBACAudit LoggingSession Revocation
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
SupabaseRenderPages FunctionsWorkers RuntimeAzureDatabricksTailscaleGit / GitHub WorkflowsCI/CD

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
Agent SkillsMCPSubagent OrchestrationCodexGeminiOpenAIOpenClawOllamaQwen

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
PyTorchMachine LearningAzure Data FactoryDatabricksFHIRLetterboxd / YouTube APIsStripeJSONL

FHIR-compliant ingestion with ADF, Databricks, and PyTorch; 58k-film JSONL catalog loading; Stripe payments; and Letterboxd and YouTube integrations.

Supporting

DNS, Email & Deliverability

ResendDNSEmail Routing
SPFDKIMDMARCSMTP RelayCloudflare Email RoutingPages Function Contact API

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
UX / IAUser Flow DesignConventional CommitsGit FlowSmoke-Test GatesUnit TestingProperty TestingTechnical CommunicationLead GenerationPre-Sales