Code. Sleep. Repeat.

Hey, I'm Gabriel Trzimajewski! I'm a self-taught guy who lives, loves and learns, listens to a lot of music, loves coding, traveling and playing piano. I've always been into computers since I was a kid, and then I discovered the beauty of JavaScript at Rocketseat back in early 2020.

Most recently I was a Senior Software Engineer at Bradesco, on the Open Platform team, building an internal log processing and observability platform used at banking scale for incident investigation and system monitoring. I'm from Brazil and a big fan of twenty one pilots.

I'm a backend-focused engineer with 4+ years shipping distributed systems, APIs, and cloud infra. I care about reliability, performance, and writing code that's actually nice to maintain at 3am when something is on fire. Before Bradesco, I spent a year+ at Mundo Invest leading a B3 (Brazilian stock exchange) integration handling ~100k requests/day, where I cut cloud costs by ~50% and dropped a critical query from ~8s to under 200ms.

Highlights

• Designed an audited, incident-based log access workflow at Bradesco, cutting investigation time by 50%+ while keeping full traceability and compliance.
• Led a B3 integration API at Mundo Invest serving ~100k requests/day for ~10K MAUs over REST, webhooks, and Kafka.
• Migrated AWS infra across regions with Terraform, lowering cloud costs by ~50% through workload analysis and rightsizing.
• Optimized PostgreSQL search with pg_trgm, taking response times from ~8s to <200ms under production load.
• Replaced synchronous REST with gRPC on latency-sensitive paths, improving inter-service tail latency.
• Automated CI/CD with GitHub Actions (Docker, ECS, ECR), bringing deploys from 15 minutes to 3.
• Built Datadog dashboards and SLO-based alerting, reducing incident investigation time by ~80% and improving MTTR across a 5-engineer team.

Career

Education

FAQ

Who is Gabriel Trzimajewski?

Gabriel Trzimajewski is a Senior Backend Software Engineer from Blumenau, Santa Catarina, Brazil, with 5+ years building distributed systems, APIs and cloud infrastructure. He most recently worked at Bradesco on an internal log processing and observability platform used at banking scale.

What technologies does Gabriel work with?

Primarily Java and Spring Boot, Node.js and TypeScript, C#/.NET, and React on the frontend. On the infrastructure side: AWS, Terraform, Docker, Kafka, gRPC, PostgreSQL and Datadog for observability and SLO-based alerting.

How do you pronounce Trzimajewski?

Roughly "tree-mah-zhess-key" (IPA: tɾi maˈʒɛs.ki).

Is Gabriel available for work?

Yes — he is open to senior backend and fullstack roles, remote or based in Brazil. The fastest way to reach him is the contact page at snowye.dev/contact or by email at gabriel@snowye.dev.

What has Gabriel actually shipped?

He led a B3 stock exchange integration serving ~100k requests/day for ~10k monthly active users, cut AWS costs by ~50% through a cross-region Terraform migration, took a critical PostgreSQL query from ~8s to under 200ms using pg_trgm, and reduced deploy time from 15 minutes to 3 with GitHub Actions.

Languages

• Portuguese — native
• English — fluent