Infrastructure Analyst at Pontotel. Licensed radio amateur, PU3IAR. Brazil.
isaklab.com · LinkedIn · Email · GitHub Sponsors
I work on cloud infrastructure: Kubernetes and Helm, CI/CD pipelines, infrastructure as code with Terraform, database administration, and observability with Sentry, Prometheus, and Grafana.
Outside of work I maintain open-source projects in cryptography, digital radio, and embedded systems. I write about them at isaklab.com.
Infrastructure Kubernetes · Helm · Terraform · GCP · CI/CD · Prometheus · Grafana · Sentry
Languages Python · Rust · Go · Fortran · C · JavaScript / TypeScript
Elliptic-curve cryptography implemented across Python, JavaScript, and Go, with an application built on it.
| Project | Description |
|---|---|
ecutilsPython | ECC library: Diffie–Hellman and Massey–Omura key exchange, ECDSA signatures, Koblitz message-to-point encoding. |
js-ecutilsJS/TS | JavaScript/TypeScript port of ecutils for the browser and Node.js. |
go-ecutilsGo | Go port of ecutils. |
e2hatJS | End-to-end encrypted web chat using elliptic-curve cryptography; encryption runs client-side, so the server cannot read or forge messages. |
Amateur-radio (PU3IAR) digital modes, modems, and SDR tooling.
| Project | Description |
|---|---|
ternFortran | HF weak-signal digital mode with a channel-aware receiver: 16-FSK, Gauss–Markov (Kalman/RTS) channel smoothing, CRC-aided polar coding, and cross-frame combining; validated against an ITU-R F.1487 Watterson channel and cross-calibrated with WSJT-X FT8. |
cdssFortran | CHIRP-DSSS-Polar digital modem with soft-decision reception and iterative refinement. |
radioplanbrHTML | RF coverage planning with Okumura-Hata, COST-231, ECC-33, Friis, and Ericsson models, including terrain and line-of-sight analysis. |
sdrconnectPython | Library for SDR connectivity and raw IQ data collection. |
Toolchain for 8-bit AVR microcontrollers: language, compiler, emulators, and IDE.
| Project | Description |
|---|---|
ik8bRust | Compiler from the ik language to Intel HEX firmware for AVR, with no external assembler, linker, or C runtime. |
ikideRust | Cross-platform IDE for ik8b: syntax validation, AVR simulation, and avrdude flashing. |
ik8bvmRust · avr-vmC | 8-bit AVR CPU core emulators. |
cyone-assemblyGo | Assembly language targeting the Cyone Kernel on 8-bit microcontrollers. |
avr-modular-systemC | Modular firmware architecture for AVR. |
| Project | Description |
|---|---|
iklabPython | Planning-first CLI agent powered by Granite 4.0-H-Tiny. |
llama-model-converterPython | Converts Llama model weights to the Hugging Face format. |
- PeerDB #4365 — fixed a ClickHouse normalization failure caused by case-sensitive handling of the
_peerdb_is_deletedcolumn. (merged) - Mozilla bug 122752 — implementing SOCKS5 username/password authentication (RFC 1929) in Firefox's networking core. (in progress)
Background in Mathematics (IFNMG – Januária, 2016–2023); currently studying IT Management (PUCRS, 2025–2028). If my open-source work has been useful to you, you can support its maintenance through GitHub Sponsors.