Senior Backend Developer · AWS track
Ray PacuriBackend systems with platform-level intent.
I design microservices, event-driven orchestration, and resilient queues for products that need precision, traceability, and room to scale.
control-plane / topology·Simulated traffic
- Gateway
- Broker
- Workers
- Data
Ingress
Event bus
Compute
State
Hover or click a node
Measured impact
0K+
orders orchestrated in Footloose
0.00%
SLA focused on resilience
0+
years building backend systems
Engineering Case Studies
Production systems, designed to fail well.
Three distributed systems. Open any of them to see its architecture and decisions.
01 · Core Event Bus & OMS
Footloose
OMS on a NATS bus and resilient queues, decoupling the ERP/SAP from the order flow.
- 100K+
- orders orchestrated
- 99.95%
- SLA focused on resilience
- 1000+
- orders in absorbed spikes
- NATS
- BullMQ
- NestJS
- Redis
02 · Semantic Search · RAG
LoSaque
Semantic search SaaS with RAG, vector indexing, and a distributed Redis cache.
- <200ms
- contextual queries · target
- Redis
- distributed cache for millisecond-level search
- Pinecone
- Redis
- NestJS
- TypeScript
03 · Fiscal Automation · SUNAT
Qompa
SUNAT automation: circuit breaker for external failures and idempotent reconciliation.
- SUNAT
- more stable integration
- Idempotent
- document reconciliation
- E2E
- document traceability
- NestJS
- Encore.ts
- Puppeteer
- PostgreSQL
Architecture / Stack
Tools by role, with their trade-off.
Each piece, with the decision it solves and the cost accepted.
- NATS
- Lightweight, low-latency bus; delivery and idempotency must be designed.
- BullMQ
- Visible retries and backoff; durability depends on Redis.
- Redis
- Millisecond cache and queue backing; volatile data, the truth lives in PostgreSQL.
AlsoSAPEventBridge
AWS · Certifications in progressA Cloud Guru
- AWS Certified Cloud Practitioner70%
- AWS Certified Developer Associate65%
Available for backend and cloud projects
Ray Pacuri · raydlc.space
Senior backend engineer focused on critical systems: reliable orchestration, end-to-end traceability, and observable operations.