HumanBit Logo

AI Engineer | Scrabble & Jigsaw

Posted on January 20, 2026

Job Description

Key Responsibilities
 
Design scalable Python backends (FastAPI/Flask/Django) to power AI-driven
test execution, integrating Vision LLMs for screen understanding and
locator-free interactions.
Fine-tune and deploy LLMs/VLMs (e.g., for OCR, layout analysis, dynamic UI
handling) using PyTorch/TensorFlow, with prompt engineering for robust
agent behavior.
Build production pipelines: data preprocessing, inference, feedback loops,
RAG for test knowledge, and API endpoints for APK uploads/execution.
Productionize models into real-time workflows on AWS/GCP—containerize
with Docker/K8s, optimize for cost/speed, monitor performance.
Collaborate on agentic features: reliable execution, precision debugging,
cross-device sync—turning raw screens into actionable insights.
 
Must-Haves
 
4-6 years in AI/ML + backend (Python expert; FastAPI/LangChain a plus).
Proven LLM fine-tuning (LLMs/VLMs for vision/NLP; OpenAI/Claude toolkits).
Backend chops: REST APIs, SQL/NoSQL (MongoDB/DynamoDB), scalable
systems.
Deployed AI to prod (MLOps: Docker, cloud infra, CI/CD).
Crisp thinker/communicator—quick to iterate on assignments.
Powered by
HumanBit Logo