Please state the location and include REMOTE for remote work, REMOTE (US)
or similar if the country is restricted, and ONSITE when remote work is
not an option.
Please only post if you personally are part of the hiring company—no
recruiting firms or job boards. One post per company. If it isn't a household name,
explain what your company does.
Please only post if you are actively filling a position and are committed
to replying to applicants.
Commenters: please don't reply to job posts to complain about
something. It's off topic here.
Readers: please only email if you are personally interested in the job.
Searchers: try https://nthesis.ai/public/hn-who-is-hiring, https://dheerajck.github.io/hnwhoishiring/,
http://nchelluri.github.io/hnjobs/, https://hnjobs.emilburzo.com.
Don't miss this other fine thread: Who wants to be hired? https://news.ycombinator.com/item?id=49522896
Location: Florianopolis, Brazil (UTC-3)
Remote: Yes, preferred. Open to relocation to the US, EU, UK or Canada with visa sponsorship.
Willing to relocate: Yes, with sponsorship.
Technologies: Java (10 years) / Spring Boot, Kotlin, Redis, ClickHouse, MySQL / MariaDB / PostgreSQL, Docker, Ansible, Linux, AWS, Kubernetes, Helm, ArgoCD, Terraform, Grafana, TypeScript / Next.js. Secondary: Go, Rust, Python. Claude Code daily for the last 11 months.
Resume/CV: https://lucasfrederico.dev
GitHub: https://github.com/lucasfrederico
Email: lucas.frederico@outlook.com.br
About me. Senior backend engineer, ten years on the JVM. Since 2021 I have been one of the engineers behind LoverCraft, a US survival network that peaks at 1,500 concurrent players and holds 300 to 450 on a normal evening, with 30+ cross-server services spread across several Debian hosts. Team of three to five. My work is low-latency cross-server state over Redis, an economy with an audit row per transaction, JVM tuning, and end-to-end telemetry on ClickHouse. When a backend goes down mid-session, players notice in seconds and I am in the incident channel.
Before that, five years at Senior Sistemas building Java, Spring Boot and Angular for Kinross Gold, Petrobras, Banco BMG and Grendene. Intern to owning the software factory's architecture area.
Production work is closed-source under contract. The open-source side is on GitHub, written up on the site. Best fit: real-time or high-throughput backends, game and multiplayer infrastructure, platform work. English is fluent written, intermediate spoken.
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