Budapest, Hungary

Bence Szilágyi

Software Engineer.

AI systems, native iOS products, and the software behind them.

View work View experience

TrackIt health dashboard on iPhone

Currently at SonrisaOpen to remote roles across CET / CST

Career · 2024 — Now

Experience.

AI systems, e-mobility operations, and full-stack product engineering.

2025 — Present
Current
Sonrisa
AI Software Engineer
Company
Building AI systems for autonomous workflows and retrieval-quality improvements.
- Built autonomous multi-step and sub-agent workflows.
- Designed a Library Graph approach for RAG retrieval so relevant chunks reach the LLM with more context.
- Reduced token cost by about 20% while improving response accuracy.
- Python
- FastAPI
- LangChain
- LLM APIs
- Redis
- Temporal
- RAG
2025 — 2026
ALTEO Nyrt.
Software Developer / IT Specialist — E-mobility
Company
Built internal software and web tools for EV charger operations.
- Supported charger administration for e-mobility operations.
- Built reporting and maintenance-tracking tools for internal teams.
- E-mobility
- EV charging
- Internal tooling
- Reporting
2024 — 2025
OrthoGraph
Full-stack Developer
Company
Maintained and containerised a Laravel backend for a production product.
- Maintained a Laravel-based backend.
- Containerised the application for a repeatable development setup.
- PHP
- Laravel
- Docker
- Docker Compose
- Git

Selected work

Built products.

Two co-founded mobile products, from interface to infrastructure.

Secure messaging for iPhone

Inviso Chat

Co-founder · iOS & backend engineer · 2025

A peer-to-peer, end-to-end encrypted messenger with real-time sessions, on-device intelligence, and RAM-only messaging.

Peer-to-peer sessions
End-to-end encryption
RAM-only messaging

SwiftUI · WebRTC · Core ML · DTLS encryption

Inviso Chat session list and encrypted message screen

Health tracking for iPhone

TrackIt

Co-founder · iOS & backend engineer · 2025

Privacy-first health tracking with Apple Health sync and 15+ body metrics.

15+ body metrics
Apple Health sync
App Store

Swift · SwiftUI · HealthKit · Swift Charts · Core Data

TrackIt health dashboard on iPhone