Staff Software Engineer - Full Stack

About Snorkel At Snorkel, we believe meaningful AI doesn't start with the model, it starts with the data. We're on a mission to help enterprises transform expert knowledge into specialized AI at scale. The AI landscape has gone through incredible changes between 2015, when Snorkel started as a research project in the Stanford AI Lab, to the generative AI breakthroughs of today. But one thing has remained constant: the data you use to build AI is the key to achieving differentiation, high performance, and production-ready systems. We work with some of the world's largest organizations to empower scientists, engineers, financial experts, product creators, journalists, and more to build custom AI with their data faster than ever before. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! We are seeking an experienced and visionary Senior/Staff Full-stack Engineer to help lead the development of Snorkel Flow, our web application that enables users to programmatically label training data, train models, deploy and monitor them, and analyze production data. In this role, you'll collaborate closely with designers, product managers, front- and back-end engineers, and ML experts to architect and implement complex features, mentor junior developers, and drive best practices across the team. You will work with technologies including TypeScript, React, Python, FastAPI, and SQL to deliver scalable and robust solutions. Basic Qualifications

• Bachelor's degree in Computer Science or a related technical field
• 8+ years of professional experience in software engineering
• Proficiency in at least one general-purpose programming language (e.g., Java, C++, Python, Go, or similar)
• Experience designing and building scalable systems, complex UIs, services, or infrastructure
• Experience leading technical projects or mentoring other engineers

Main Responsibilities

• Architect, design, and implement high-quality, scalable, and maintainable code for both client-side and server-side components
• Lead technical discussions and provide guidance on best practices in full stack development
• Collaborate with stakeholders to define project requirements and translate them into technical specifications
• Build proactively with empathy for our customers, constantly iterating to balance innovative research with practical solutions
• Mentor and support junior developers, fostering a culture of continuous learning and improvement
• Ensure the application is secure, performant, and optimized for scalability
• Conduct thorough code reviews to maintain high code quality and share knowledge
• Troubleshoot and resolve complex technical issues across the stack
• Work a hybrid schedule with at least three days per week in our Redwood City HQ or the SF office

Preferred Qualifications

• 6+ years of professional full-stack experience developing performant, intuitive, and scalable web application architectures
• Expertise in TypeScript and React for building dynamic and responsive user interfaces
• Strong proficiency in Python and server web frameworks such as FastAPI, Flask, or Django
• Extensive experience with relational databases and SQL, including schema design and query optimization
• Proven track record of designing and implementing scalable and maintainable architectures
• Ability to prototype and iterate quickly around sophisticated user workflows
• Deep understanding of RESTful API design and implementation
• Strong problem-solving abilities and attention to detail
• Excellent verbal and written communication skills and a collaborative mindset
• Ability to work independently and manage multiple tasks effectively
• Self-motivation, positive attitude, and eagerness to learn

Be Your Best at Snorkel Joining Snorkel AI means becoming part of a company that has market proven solutions, robust funding, and is scaling rapidly-offering a unique combination of stability and the excitement of high growth. As a member of our team, you'll have meaningful opportunities to shape priorities and initiatives, influence key strategic decisions, and directly impact our ongoing success. Whether you're looking to deepen your technical expertise, explore leadership opportunities, or learn new skills across multiple functions, you're fully supported in building your career in an environment designed for growth, learning, and shared success. Snorkel AI is proud to be an Equal Employment Opportunity employer and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. Snorkel AI embraces diversity and provides equal employment opportunities to all employees and applicants for employment. Snorkel AI prohibits discrimination and harassment of any type on the basis of race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local law. All employment is decided on the basis of qualifications, performance, merit, and business need. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. Apply tot his job