01 / CAPABILITY
Fullstack Development
- •Design and build end-to-end applications
- •Connect frontend, backend and infrastructure
- •Ensure scalability and maintainability
Next.js / TypeScript / Node
SECTION 01 // MAIN OVERVIEW
SLIDE 01 / 05
Senior Full-Stack Engineer & Backend Architect
Jordan Gaona
I architect high-throughput backend systems and automated workflows that drive operational scale.
Specialized in distributed architectures, asynchronous event-driven design, and mission-critical cloud infrastructure.
High-Throughput Backends
Fault-Tolerant Systems
Event-Driven Queues
CHAOS LAB // RESILIENCE TESTBED
Live Architecture & Chaos Resilience Testbed
Real-time fault injection sandbox: simulate worker drops, database cutoffs, and sudden traffic surges to observe circuit breakers and zero-loss queuing.
INTERACTIVE_SANDBOX
resilience-chaos-sim.sh
CHAOS LAB // RESILIENCE TESTBED
FAULT INJECTION CONTROLS● All systems nominal
Throughput
1,450 req/s
p95 Latency
18ms
Circuit Breaker
CLOSED
Redis Queue
12 jobs
EVENT_STREAM // REDIS_BULLMQ_ENGINELIVE
›[HEALTH CHECK] All 3 BullMQ workers reporting heartbeats.
›[PIPELINE] Ingestion rate nominal at 1,450 req/s.
›[PERSISTENCE] PostgreSQL connection pool healthy (12/100).
About Me
Fullstack engineer with a strong backend focus, specialized in building scalable systems and simplifying real-world workflows. I design and develop end-to-end applications, working across frontend, backend, and infrastructure to deliver clean, maintainable, and high-impact solutions.
How I Build Systems
system-capabilities.json
02 / FOCUS AREA
Backend & System Architecture
- ▸Design scalable backend systems
- ▸Focus on performance and reliability
- ▸Build clean and maintainable architectures
High-Throughput Focus
NestJS / Redis / BullMQ / AWS
03 / VELOCITY
AI-Augmented Development
- Accelerate development with AI-assisted workflows
- Improve code quality and decision making with AI support
- Support rapid iteration while maintaining engineering consistency
AI Agent Pair Programming
Copilot / Gemini / Custom Agents
04 / PRAGMATISM
Workflow Optimization
- •Simplify real-world user workflows
- •Automate processes through system design
- •Reduce operational complexity
Automation / Developer UX
Selected Work
system-architecture-spec.md
Double-tap or click to flip
// Professional Infrastructure
PRODUCTION_BUILDv1.2.0
METRICS: 40% CONVERSION
High-Throughput Automotive Campaign Architecture
Architected a decoupled, event-driven background job system using NestJS, Redis, and BullMQ. Solved SQL database I/O bottlenecks during concurrent traffic spikes by storing transient job state in RAM, managing heavy dispatches (email, SMS, and voucher generation) with strict fault tolerance.
NestJSNode.jsRedisBullMQPostgreSQLAWS EC2PM2
SYSTEM DIAGNOSTICS & IMPLEMENTATIONPASS
Decoupled heavy I/O dispatches using Redis-backed BullMQ FIFO queues to protect relational database integrity.
Supported high-volume traffic spike demands, enabling a 40% repurchase conversion rate across 3,000 target users.
Maintained 24/7 availability on EC2 using PM2 process clustering and custom service-restart monitors.
Doble toque o botón superior para voltear y ver arquitecturaSTATUS: DEPLOYED
// INFRASTRUCTURE_TOPOLOGY
Event-Driven Asynchronous Pipeline Topology
Incoming client webhook traffic is ingested by a NestJS PM2 cluster, offloaded immediately into an in-memory Redis/BullMQ buffer, and consumed concurrently by multi-process workers before persisting to PostgreSQL and triggering third-party delivery.
Haz clic o toca cualquier nodo para inspeccionar su rolTOPOLOGY // ARCH_SPEC_V1.1
Redis + BullMQIn-Memory FIFO Buffer
Redis 7 In-Memory, BullMQ Engine
Almacenamiento de jobs en memoria RAM para absorber picos sin tocar disco de DB.
⚡ Resuelve: Aislamiento de I/O y cero pérdida de jobs
Presiona 'View Spec' o haz doble toque para volverINFRASTRUCTURE // VERIFIED
// Personal MVP & R&D
SANDBOX_BUILDv1.2.0
METRICS: $0 RUNTIME COST
Expenses Tracker SaaS (In Progress)
Developing a lightweight, high-performance personal finance SaaS. Employs Zustand for clean, boilerplate-free client state management and Vercel + Supabase to form a fully serverless, zero-maintenance database and compute layer.
Next.jsTypeScriptZustandSupabase (PostgreSQL)Vercel
SYSTEM DIAGNOSTICS & IMPLEMENTATIONPASS
Implemented serverless connection pooling via Supabase APIs to ensure reliable DB operations under serverless execution.
Optimized client-side rendering pathways using Zustand, minimizing memory footprint and component re-renders.
Eliminated server maintenance overhead entirely, achieving a cost-effective, cold-start optimized deployment.
Doble toque o botón superior para voltear y ver arquitecturaSTATUS: DEPLOYED
// INFRASTRUCTURE_TOPOLOGY
Serverless Edge & Managed BaaS Architecture
Next.js frontend connects directly to Vercel edge routes and Supabase's transaction pooler (PgBouncer), enforcing Row Level Security (RLS) policies at the database layer with zero permanent server maintenance.
Haz clic o toca cualquier nodo para inspeccionar su rolTOPOLOGY // ARCH_SPEC_V1.1
Supabase PoolerPgBouncer Gateway
Supabase PgBouncer, Transaction Mode
Multiplexación de conexiones transaccionales para evitar agotar sockets de DB.
⚡ Resuelve: Conexiones concurrentes sin degradación
Presiona 'View Spec' o haz doble toque para volverINFRASTRUCTURE // VERIFIED
Experience
employment-history.log
Fullstack Engineer & Project Lead
2022 - PresentDigitas
Orchestrated high-availability backend solutions, drove asynchronous system architecture, and led cross-functional engineering initiatives.
- ↳Designed and implemented an asynchronous job management system using RAM-based Redis and BullMQ, completely bypassing relational DB I/O bottlenecks. Successfully managed massive dispatches (SMS, email, and dynamic voucher allocation) for a major automotive campaign, driving a 40% repurchase rate across target users.
- ↳Spearheaded collaborative engineering and design roundtables, setting initial project direction while fostering open, meritocratic debates to align visual assets with technical feasibility.
- ↳Managed AWS EC2 cloud infrastructure, setting up robust process monitoring via PM2 for 24/7 service availability, and executing seamless manual builds and deployments over SSH.
Fullstack Developer
2021 - 2022B-Code
Developed web and mobile solutions across multiple technologies and platforms.
- ↳Built fullstack applications using .NET and PHP
- ↳Developed mobile features using Android
- ↳Collaborated with multidisciplinary teams
Engineering & Leadership
engineering-philosophy.md
My approach combines technical depth with pragmatic leadership. I prioritize clear architecture, incremental delivery, and strong engineering standards. I use AI tools to improve productivity, strengthen technical decisions, and maintain high engineering standards. I mentor through design reviews, hands-on collaboration, and documentation practices that help teams move faster without sacrificing quality.
Current & Future Focus
future-roadmap.log
- ▸Cloud Infrastructure: Actively expanding cloud-native architectural patterns and preparing for the AWS Certified Cloud Practitioner certification.
- ▸Serverless & BaaS Ecosystems: Exploring light-footprint architectures, Supabase-centric backends, and serverless edge functions to optimize cost-efficiency and deployment velocity.
AWS Practitioner Prep / Serverless Edge
ESTABLISH_HANDSHAKE
Let's Connect
contact-channel.secure
I'm currently open to opportunities where I can contribute to building scalable systems, improving backend architecture, and creating impactful products. If you're working on something interesting or looking for a developer with strong backend expertise, feel free to reach out.