Full Stack Engineer

Full-time • San Francisco, CA - Onsite • 6 days a week • $180,000 base + meaningful equity

Founding Software Engineer at NOSO (YC S25).

Before applying

• We work 6 days a week, and we also work and ping each other in the night.
• We are in office in SF, and do not have any remote options.
• We have an extremely high bar on work.
• We do a lot of customer onsite visits.
• If you are not okay with any of the above, DO NOT APPLY.

What You Get in Return

• Huge career growth path
• Great and super capable colleagues
• NO BULLSHIT culture
• Above market pay

The Role

As Founding Software Engineer, you will be our first full-time engineer and play a pivotal role in shaping our product and technology stack from the ground up. You will work closely with the founding team to design and build features end-to-end, bringing new AI-driven capabilities to market. This is not a standard internship or part-time role, you'll be a core member of the team, writing production-quality code and making high-impact decisions from day one.

Key Responsibilities

• Build full-stack features across our React Native mobile frontend and Python backend, from idea to production
• Design and integrate LLMs and other AI models into our applications, including data collection, fine-tuning, and deployment
• Handle enterprise customer data and APIs, build data pipelines to clean, store, and analyze large datasets
• Test and validate model performance, optimize for efficiency, and ensure reliability at scale
• Take ownership across the stack, from backend services and database schemas to intuitive mobile UI
• Work closely with product, AI, and design to turn customer needs into technical solutions

Required Qualifications

• New Graduate: Bachelor's or Master's in CS, EE, or a related field, graduating in 2025 or 2026
• GPA of 3.7 or higher
• Familiarity with ML frameworks like TensorFlow or PyTorch and basic NLP/AI concepts
• Comfortable with large datasets (Pandas, NumPy) and cloud platforms (AWS, GCP, or Azure)
• Strong problem-solving and communication skills
• Passion for AI and impact in the trades industry

Nice to Have

• Experience deploying ML models at scale
• Familiarity with enterprise systems and APIs (CRM, dispatch tools)
• Full-stack or AI projects and internships
• Interest in HVAC, plumbing, or other field-service domains
• Startup or hackathon experience
• $180,000 base + equity
• Meaningful ownership in the company
• YC-backed with runway to grow
• Massive learning opportunity working on AI, full-stack, and cloud with experienced founders