Backend developer focused on scalable distributed systems, event-driven architectures, and reliability engineering.
I build fault-tolerant services, high-throughput messaging pipelines, and production GenAI systems (RAG + agents), always with strong observability and measurable impact.

• 🎓 Studying Computer Science / ADS (Mackenzie / UNIP — conclusion expected Dec/2027)
• 🧠 Interests: System Design, Concurrency, Messaging, SRE, GenAI
• 🎮 Fun fact: I like video games

Distributed Systems & Backend

• Elixir (BEAM/OTP), Phoenix, Ecto
• C# (.NET 8), Ruby on Rails, TypeScript, Python
• REST, GraphQL, Microservices, CQRS/Event Sourcing (when needed)

Event-Driven & Messaging

• Kafka, RabbitMQ, AWS SQS/SNS, BullMQ, Sidekiq
• Idempotency, DLQ, Circuit Breaker, Backoff + Jitter

SRE & Observability

• OpenTelemetry, Prometheus, Grafana, Loki
• SLIs/SLOs, tracing, metrics, logs, RCA

Cloud & DevOps

• AWS (EKS/EC2/RDS/Lambda), Kubernetes, Docker, Helm
• GitHub Actions, Terraform

Data

• PostgreSQL, Redis, MongoDB, Elasticsearch
• Vector search: pgvector / FAISS / Qdrant (as needed)

Some results I’ve delivered in production environments:

• 📣 Scaled push notification platform to 2M+ active devices with strict delivery and reliability goals
• ⚡ Kept tail latency P95 < 400ms under load peaks with resilient async patterns
• 🚀 Increased system throughput by +35% with event-driven integration and robust semantics
• ⏱️ Reduced a critical workflow from ~20 minutes to ~8 seconds (-75% in response time)
• 🔎 Implemented vendor-neutral observability (MELT) to reduce incident detection and lower MTTR

• Event-driven services & messaging patterns
• GenAI / RAG pipelines
• Observability tooling & infra automation
• Backend APIs and system design exercises

• LinkedIn: https://www.linkedin.com/in/lucas-s-olopes
• Email: olopes.lucas567@gmail.com