Looking for a job

patrykgniewek User

@patrykgniewekuser

Message

I build reliable full-stack products, from event pipelines and payments to AI receptionist SaaS.

Poland

Message

What I'm looking for

I'm open to remote work where I can own features end to end, from data models and APIs to UI and deployment, and collaborate with international engineering teams.

I built and launched Marisol at Kaijiro Labs, an English/Spanish AI receptionist SaaS with six paying customers. I owned its UI/UX, React portal, TypeScript backend, Stripe billing, Twilio and ElevenLabs voice integrations, Google Calendar synchronization, and Cloudflare Workers deployment.

Previously, I owned indexing and the data layer for Candylabs' Solana NFT marketplace, serving 8,700+ users and approximately 50,000 transactions. I've also built refund and security systems for early.cash / Waterfall and trading interfaces for Arkitekt DEX, working remotely with US- and Japan-based teams.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Engineer

Current

Kaijiro Labs

Mar 2026 - Present (7 months)

Independently designed, built and launched an AI receptionist SaaS with paying customers. Delivered multiple client projects including a book sales website, promotional sites, and a tutoring platform.

TypeScript NodeJS React PostgreSQL Redis Cloudflare Workers Stripe Google Calendar Twilio ElevenLabs Hono OAuth UI UX

Backend Engineer

Candylabs

Oct 2025 - Feb 2026 (4 months)

Owned indexing and data layer for a Solana NFT marketplace with 8,700+ users. Built event ingestion pipelines, designed shared database package, and improved performance and reliability.

TypeScript NodeJS PostgreSQL Redis Prometheus Ed25519 CI CD Unit Testing Database Design Event Processing

Full-Stack Developer

early.cash / Waterfall

Dec 2024 - Oct 2025 (10 months)

Owned refunds, indexing and on-chain security for a token fair-launch platform. Built refund pipeline, rebuilt RPC integration, and secured fund-moving Rust instructions.