Skip to main content
DC
Open to opportunities

Daniel Costa

@danielcosta1

I build reliable Java and Kotlin systems for payments, trading, and high-volume workflows.

Brazil
Message

I've built booking, payment reconciliation, and listing availability services at QuintoAndar, improving validation reliability, transaction boundaries, database performance, and response-time stability under high rental demand.

At Microsoft, I developed Azure billing reconciliation and cloud subscription routing services in Java, Kotlin, Spring, and PostgreSQL. I also expanded observability for marketplace fulfillment, helping teams trace payment mismatches and resolve concurrency regressions sooner.

My earlier work at Qubika and Cheesecake Labs covered fintech order capture, trade lifecycle dashboards, capital-markets reporting, appointment scheduling, onboarding, and notification processing.

I work hands-on with distributed systems, asynchronous communication, concurrency analysis, database optimization, and production observability. I value Scrum collaboration, blame-free reviews, strong test coverage, and safer releases.

Experience

Work history, roles, and key accomplishments

QuintoAndar logoQU

Senior Software Engineer

Mar 2024 - Apr 2026 (2 years 1 month)

Engineered the property booking service using Java, Spring, Docker, and PostgreSQL, improving distributed request handling and validation reliability. Refactored the payment reconciliation service, introducing clearer transaction boundaries and database indexes to shorten nightly settlement checks and reduce support escalations.

Education

Degrees, certifications, and relevant coursework

Universidade de São Paulo logoUP

Universidade de São Paulo

Bachelor's Degree, Computer Science

2014 - 2018

Bachelor's Degree in Computer Science from Universidade de São Paulo, covering data structures, algorithms, database systems, and software engineering.

Get matched with your dream remote job

Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan