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lavantien/README.md

Traditional SWE · Agentic Engineering · Technical Consulting · LinkedIn · Last updated: 2026-01-08

I build systems, tools, and agents that ship.

What I Do

Backend & Distributed Systems: Production experience with Go, C#, Scala, C++, and Rust. Expertise in gRPC (Protobuf, Avro) and REST APIs with OpenAPI generation. Proficient in SQLite, Postgres, Mongo, and Redis using SQLc/SQLx, along with NATS/RabbitMQ message queues. Focused on code quality: enforcing high coverage (99-100% coverage achievable) via unit, integration, and E2E tests with strict linting. Skilled in concurrency patterns, Docker Compose, the Grafana stack, NGINX load balancing, and SRE principles.

Agentic Engineering: Eval harnesses (llm-tournament), RAG pipelines, agent architectures. Focused on reproducibility, cost control, and measuring what actually matters.

Algorithms & Tools: From competitive programming implementations (genetic algorithms, FFT, graph theory) to practical tooling (CLI scrapers, PDF archivers, developer automation).

Full-Stack When Needed: React, Svelte, Angular, TypeScript. Not my primary focus, but I ship complete features end-to-end.

Featured Work
# Project Stars Stack Description
0 modern-swe-library 9 N/A Open knowledge library: curated resources for mod...
1 dotfiles 22 Sh PS Lua Universal SWE Dotfiles (Neovim/Wezterm/zsh/pwsh, ...
2 llm-tournament 7 Go HTML CSS Simple and blazingly fast dynamic evaluation plat...
3 caro-ai-pvp 3 HTML C# Svelte Tournament-strength Caro (Gomoku variant) AI with...
4 spring-angular-ecom-architecture 13 TS HTML Java FlowerShop full features web app powered by Sprin...
5 go-edge-mesh 5 Make Go Sh An Docker-based Edge distributed mesh data proces...
6 distributed-booking-microservices 6 Go Make Sh Laptop Booking Application in Golang and gRPC, lo...
7 order-demo 6 Go Sh Make A production-ready simple order service demo
8 go-sudoku-solver 5 Go An Optimized Sudoku Solver and Generator written ...
9 go-parallel-prime-seeker 4 Go A blazingly fast Go program that finds all prime ...
10 takeout-to-pdf 4 Py Transform Google Takeout emails into organized, a...
11 concurrent-scrapper-ftsearch 4 Go Make TUI program to concurrently scrap the web, then s...
12 health-app 4 Go JS HTML Simple full-stack Health App written in Go and React
13 DotnetCoreAngularDemo 5 C# TS HTML An eCommerce Demo, written in .Net Core 3 & Angul...
14 TwoWarriors 4 C# A show match between two great warriors.
15 SumoBot 5 C Full detail of design and implementation of a Sum...
16 oldschool-web 4 JS CSS Oldschool Web with JS, HTML, CSS -> Babel, Webpac...
17 neovim 5 Lua giga minimal neovim config for programmers
18 go-flutter-microservices-skeleton 6 C++ CMake HTML go-flutter-microservices-skeleton
19 react-weather 4 JS HTML CSS Simple Weather Web App with React
20 office-space-allocation 5 Go A simple program to determine space allocation fo...
21 js-async-parallel 4 JS A async parallel fibonacci calculation using Work...
22 web-piggame 4 JS CSS HTML A Pig Game Duo written purely in HTML, CSS, and J...
23 wallet-tracker 4 Go generates a history of all deposits and withdrawa...
24 sudoku-cli 4 C Make A CLI tool for creating and solving sudoku at any...
25 springboot-restapi 4 Java A simple RESTful API with Validator and Unit Testing
26 rust-chat-app 3 JS CSS Rust Rust Realtime Chat App Demo
27 py-auto-dir 4 Py Make Watch for changes in a folders and move appropria...
28 go-svelte-movies 4 Svelte Go SCSS Go API that read a csv file and provide endpoints...
29 go-linear-programming 3 HTML Go Sh Linear Programming implement in Go
30 go-bigint 3 Go A big unsigned integer implementation in Go, incl...
31 genetic-cpp 4 C++ Sh An implementation of Genetic Algorithm to solve t...
32 fft-mult-golang 3 Go
33 dev 5 Sh A place to dump all
34 chess-repertoire-database 5 N/A A SCID repertoire database I'm making, based on w...

Pinned Loading

  1. dotfiles dotfiles Public

    Universal SWE Dotfiles (Neovim/Wezterm/zsh/pwsh, ClaudeCode/Git Hooks, Linux/Windows) - Battery Included

    Shell 22 3

  2. llm-tournament llm-tournament Public

    Simple and blazingly fast dynamic evaluation platform for benchmarking Large Language Models

    Go 7 2

  3. caro-ai-pvp caro-ai-pvp Public

    Tournament-strength Caro (Gomoku variant) AI with 7 advanced search optimizations (PVS, LMR, Quiescence, Enhanced Move Ordering, Transposition Table, History Heuristic, Aspiration Windows). Built w…

    HTML 3 2

  4. spring-angular-ecom-architecture spring-angular-ecom-architecture Public

    FlowerShop full features web app powered by Spring Boot and Angular

    TypeScript 13 3

  5. go-edge-mesh go-edge-mesh Public

    An Docker-based Edge distributed mesh data processing system, with fake sensors, pure Go bootstrapper, pseudo-thirdparty and web UI. Integrated with Mosquitto MQTT, Telegraf, InfluxDB, and Grafana …

    Makefile 5 3

  6. distributed-booking-microservices distributed-booking-microservices Public

    Laptop Booking Application in Golang and gRPC, load-balancing with NGINX, and fully compatible with HTTPS OpenAPI v3

    Go 6 2