Code. Sleep. Repeat.

Gabriel Trzimajewski

Hey, I'm Gabriel ! 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.

I'm currently a Software Engineer at Bradesco, working 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.

Gabriel Trzimajewski

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

Software Engineer

Bradesco • Remote, Brazil

Apr 2025 – Present • 1 yr 2 mos

Software Engineer

Mundo Invest • Remote, Brazil

Feb 2024 – Apr 2025 • 1 yr 2 mos

Software Engineer

Avalie Mais • Remote, Brazil

Dec 2021 – Feb 2024 • 2 yrs 2 mos

Full Stack Engineer

Freelance • Remote, Brazil

Jul 2021 – Jun 2023 • 1 yr 11 mos

Education

B.Sc. Computer Science

UNINTER • Brazil

Feb 2025 – Feb 2029 • GPA 9.32/10

Focus on Algorithms, Data Structures, Databases, Distributed Systems, and Applied Mathematics (Calculus, Linear Algebra, Probability & Statistics), with exposure to AI and Cloud Computing.

Languages

  • Portuguese — native
  • English — fluent