NOSO LABS(YC S25) · 3 days ago
Founding Engineer
San Francisco, CA
Full-time
Onsite
Mid, Senior Level
$120K/yr - $200K/yrNOSO LABS is a startup looking for a Founding Software Engineer to join their team. In this role, you will be responsible for building and shaping their product and technology from the ground up, working closely with the founding team to develop AI-driven capabilities and full-stack features.
Artificial Intelligence (AI)Enterprise Resource Planning (ERP)Heating Ventilation and Air Conditioning (HVAC)Sales Automation
Responsibilities
Build full-stack features: Develop and ship core product functionality using our React Native mobile frontend and Python backend. Take features from idea to production, including UI, business logic, and cloud services
AI/ML integration: Collaborate on designing and integrating large language models (LLMs) and other AI models into our applications. Work on data collection, preprocessing, model training, fine-tuning, and deployment to improve diagnostics and automation
Data engineering: Handle enterprise customer data and APIs. Build data pipelines and tooling to clean, store, and analyze large datasets for model training and inference
Quality & optimization: Test and validate model performance, optimize code for efficiency, and ensure reliability at scale. Iterate based on feedback from real technician use-cases to continuously improve the product
End-to-end development: Take ownership of features across the stack – from designing robust backend services and database schemas to crafting intuitive mobile UI and experiences
Collaboration: Work closely with product, AI, and design teams to translate customer needs (e.g., faster HVAC diagnostics) into technical solutions. Communicate clearly and document your work to help the whole team stay in sync
Qualification
Required
Experience with full-stack development, including React Native and Python
Ability to take features from idea to production, including UI, business logic, and cloud services
Experience with AI/ML integration, including designing and integrating large language models (LLMs) and other AI models
Experience in data engineering, including handling enterprise customer data and APIs
Ability to build data pipelines and tooling to clean, store, and analyze large datasets
Experience in testing and validating model performance and optimizing code for efficiency
Ability to take ownership of features across the stack, including backend services and mobile UI
Strong collaboration skills to work with product, AI, and design teams
Company
NOSO LABS(YC S25)
NOSO Labs is the first AI-powered sales enablement platform for the HVAC and plumbing industry.
Founded in 2025
2-10 employees
Funding
Current Stage
Early StageTotal Funding
$0.5MKey Investors
Y Combinator
2025-09-09Pre Seed· $0.5M
Company data provided by crunchbase