Nevio VesićStaff Software / Protocol Engineer
Hi, I'm Nevio. I build infrastructure that holds up under real traffic.
Available from October 2026 for protocol, infrastructure and distributed-systems work in Rust and Go, on a B2B contract through my own company, InOrbit d.o.o.
Things that run here for other people.
The parts of the platform that someone other than me uses. The Radar now; the training tracks when the first one opens.
Radar
Weekly · web and Atom · free
What changed in Go, Rust and Solidity this week, from each project's own release notes, proposals and issues. For each change: what it is, what it means for code you run, and an exercise that runs. Written by a model, reviewed by me, out on Mondays.
Open Radar →
Packet in, query out.
The layers I have worked in, top to bottom, and the two things I do at every one of them.
Network
packets, kernel
- work
- eBPF, filtering, rewriting
- measured in
- microseconds
- at the edge
- anycast, 150+ PoPs
Protocol
SIP · WebRTC · RLPx · gRPC
- spoken
- to the letter
- checked
- against the capture
- carried
- voice, video and blocks
Service
Go · Rust
- does
- one thing, restartable
- ships with
- health · metrics · traces
- written in
- Go · Rust · Elixir · C
State
chosen per shape
- embedded
- MDBX · DuckDB
- relational
- Postgres · Spanner · CockroachDB
- at scale
- Cassandra · ClickHouse · Mongo
- 01
- The spec, then the wire
- I read the RFC first and the packet capture second, and when they disagree I trust the capture. The bugs that took longest to find were in that difference.
- 02
- Observable by default
- Every request carries a trace id through logs, metrics, traces and continuous profiles, so in an incident I can see what a given request did.
- 03
- Tested against faults
- The tooling that injects latency, errors, dropped packets and storage failures in development runs in CI too. The first time the code meets a bad disk should not be in production.
- 04
- Out in the open
- Open source where the client allows it. The libraries are on GitHub, and some are still used by people I have never met.
Small things, left running.
Things I build for the fun of it. Nothing to install and no account needed.
Guitar tuner
Names the string you pluck and how far off it is, to the cent.
Microphone · 5 tunings · On-device
Fretboard trainer
Calls a note, hears whether you played it, and remembers the ones you miss.
Microphone · Streaks · On-device
See your voice
A live spectrogram of whatever the microphone hears, with the pitch named as it goes.
Microphone · Real time · On-device
Chord namer
Names the chord under your fingers, or lays out every shape for a chord you type.
No microphone · Playable shapes
What people I worked with wrote.
Recommendations written on LinkedIn by people I worked with, quoted as written. The full set is on the profile.
“I had the distinct pleasure of working alongside Nevio on a project called TelAPI for 5 years, where he proved to be an invaluable core resource, core to our team… His unwavering dedication was instrumental in driving the project forward, and his ability to rapidly acquire new skills was truly impressive… Thanks in no small part to Nevio's efforts, TelAPI was later acquired by a multibillion-dollar corporation.”
“He is very knowledgeable person and always ready to share his knowledge. He push people to learn new technologies and help them to enhance their skills… he was always there whenever I was stucked in any situation.”
“Simply put, Nevio is the most impressive web developer I have ever had the privilege of working with. He is passionate, extremely knowledgable and always willing to contribute.”
“Nevio has done some tremendous work for our company at clk clk. His work has been and will always been very thought out and complete. His contributions have moved our company forward in the market place.”
“He is not only a careful and perfectly organized developer but also an inspiring colleague… I would work with him, any time anywhere.”
“Nevio is a person who goes beyond imagination with great web project ideas, one of the rare php developers who knows to build everything that comes on his mind.”
- Write
- [email protected]
- Hours
- European working hours, remote.