C++/Qt Developer with Python AI Experience
Arc Full-time
yesterday
Role details
Contract type
Permanent contract Employment type
Part-time (≤ 32 hours) Working hours
Regular working hours Languages
English Experience level
SeniorJob location
Remote
Tech stack
API
Artificial Intelligence
C++
Web Development
Python
Laravel
Modbus
Open Source Technology
Performance Tuning
QT
OPC Unified Architecture
PyTorch
Large Language Models
FastAPI
HuggingFace
Docker
Microservices
Job description
- Design and develop desktop and industrial device applications in C++17 using the Qt framework.
- Fine-tune and embed LLM models (LoRA/QLoRA, llama.cpp, Hugging Face) directly into applications - including offline/edge deployments.
- Build and maintain FastAPI microservices as the bridge between AI outputs and our Laravel/Livewire web frontend.
- Propose and select the right model architecture for each client use-case (open-source vs. API vs. custom trained).
- Troubleshoot performance and integration issues across the full C++/Python stack.
Requirements
- Senior-level C++ (C++14/17) and Qt framework - desktop and/or industrial SW background.
- Python with PyTorch and Hugging Face Transformers for LLM fine-tuning and inference.
- FastAPI for building production REST microservices.
- Experience with LoRA/QLoRA fine-tuning or local model deployment (llama.cpp, GGUF).
- Ability to work independently and deliver without close supervision.
Nice to Have
- Experience with embedded or edge AI deployments on industrial hardware.
- Familiarity with OPC-UA, Modbus or similar industrial protocols.
- Knowledge of Docker and GPU server setup for model training.
- EU/DACH timezone - CET ±2 h preferred.