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Alessandro Vieira Grammelsbacher (Ale)

Tech Lead • Ruby on Rails • Payments/Fintech • AWS • I ship reliable systems

👋 Hi

I’m a backend-first engineer and Tech Lead. Ruby on Rails is home, but I’ve shipped prod code in Java, C# and C++ too. I pick the tool that fits, keep prod boring, and obsess over reliability.

⏱️ Languages — years of professional use (approx.)

  • Ruby / Ruby on Rails — 8+ years (2017 → now). Prior to that, used Ruby for study/personal projects.
  • Java — ~5 years (2009 → 2014) across web & enterprise stacks.
  • C# — ~3–4 years (intermittent, 2010 → 2014) in enterprise/governance modules.
  • C++ — ~3 years (2009 → 2012) for IVR/URA and high-throughput SMS/GPS tooling.
  • SQL (Postgres/MySQL/Oracle) — 10+ years as the primary data layer in most backends.

Durations are conservative estimates; happy to talk through details.

🔴 Ruby (my core)

  • Rails, Sidekiq, RSpec, Minitest, RuboCop (incl. custom cops), RubyOnJets (serverless)
  • Production habits: idempotent APIs, background jobs, backpressure, graceful degradation.

☕ Java (fluent)

  • Spring, Spring Boot, Hibernate, JPA, PrimeFaces, Play Framework
  • Earlier career work on portals/services; still comfortable when needed.

🟦 C#

  • Enterprise modules, governance/reporting automation.

🟪 C++

  • IVR/URA for call centers, SMS broadcast, GPS tracking components.

📨 Queues & async

IBM MQ, AWS SQS/SNS, RabbitMQ — retries, DLQs, ordering, consumer health.

🗄️ Databases & storage

  • SQL: PostgreSQL, MySQL, Oracle
  • NoSQL: DynamoDB, Cassandra, Elasticsearch
  • Cache: Redis

☁️ Cloud & infra

AWS (Lambda, API Gateway, KMS, S3, CloudWatch, CloudFormation, Elastic Beanstalk),
Docker, Kubernetes, Nginx, Cloudflare.

🚦 CI/CD & quality

Travis CI, GitHub Actions — test & deploy pipelines, canaries, feature flags.

🧠 AI-assisted workflow

Use ChatGPT/Claude for code review, test generation, doc scaffolding; exploring RAG patterns for internal docs.

📫 Ping me