Full Stack Engineer

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 Strong proficiency in Python; experience with JavaScript/TypeScript and React (or React Native) 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 Compensation & Benefits $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