Available for work

Full-Stack Developer & AI Engineer

Rokas Stasiūnas

Vilnius, Lithuania

Student turned builder — 5 apps shipped, 1 paying SaaS, GPT-4o pipelines running in production.

0portals scraped daily
0paid SaaS live
0apps shipped
0+/10Alva Labs score

About

Rokas Stasiūnas — Full-Stack Developer & AI Engineer, Vilnius

I'm an AI Systems student at Vilnius Tech and a full-stack developer who ships production software. I've built and launched a paid SaaS product, a fully local RAG chatbot, and multiple automation pipelines — across Next.js frontends, Python backends, and LLM integrations. Strong systematic problem-solver (8–9/10 on Alva Labs logical reasoning). Open to freelance work and internship / junior opportunities.

5 portals scraped dailyGPT-4o pipelinesStripe paymentsDocker deployments

Projects

gaukdarba.vercel.app
GaukDarba — AI Job Matching SaaS — project screenshot

GaukDarba — AI Job Matching SaaS

Scrapes 5 portals daily, scores every listing with a 4-stage GPT-4o-mini pipeline, and emails only the top ~5 matches to paying subscribers. Built and shipped solo — Stripe payments, Supabase auth, Railway Docker scraper, live in production.

Next.jsTypeScriptPythonGPT-4o-miniStripeSupabasePlaywrightDocker
GitHub
github.com/Rokusena/RAG
Local RAG Chatbot — project screenshot

Local RAG Chatbot

Zero API costs, zero cloud. Full document Q&A on-device — ingest → chunk → embed → generate, all local. Source-cited answers via FastAPI. Runs on any laptop with Ollama + Llama 3.

PythonFastAPILangChainChromaDBOllamaLlama 3
github.com/Rokusena/Arbitrage-site
Arbitrage Finder — project screenshot

Arbitrage Finder

Monitors 3 markets simultaneously (casino odds, Kalshi, Polymarket) and surfaces profitable arbitrage windows in real time. Fully automated — no manual checking required.

PythonPlaywrightBeautifulSoupData Pipelines
github.com/Rokusena/EnergyDiscount
EnergyDiscount — project screenshot

EnergyDiscount

Scrapes 10+ Lithuanian retail stores daily and ranks energy drinks by price per ml. Saves users the manual price comparison across stores.

PythonBeautifulSoupWeb Scraping
github.com/Rokusena/TradingRobotSite
Furtiluna — Trading Robot Site — project screenshot

Furtiluna — Trading Robot Site

Replaced a 100% manual booking workflow with serverless automation — lead intake → slot selection → Zoom meeting creation → dual email confirmation, all without human intervention.

Node.jsVercel ServerlessPostgreSQLPrismaZoom APISendGrid

Skills

Frontend

Next.js 14ReactTypeScriptTailwind CSS

Backend

PythonFastAPINode.jsREST APIsPostgreSQL

AI & ML

LLM PipelinesRAGLangChainChromaDBOllamaGPT-4o

Cloud & DevOps

VercelRailwayDockerSupabaseGitGitHub

Scraping

PlaywrightBeautifulSoupAnti-botMulti-source Pipelines

Other

StripeResendSendGridZoom APIC#C++

Education

B.Eng — Artificial Intelligence Systems

Vilnius Tech (VGTU)

AI systems · Machine learning · Statistics · Mathematical modelling

2024 – 2028

Contact

Let's work together

Open to freelance projects and full-time opportunities.

github.com/RokusenaLinkedIn

Vilnius, Lithuania