About the Role

Join Robert Half in partnering with a pioneering company at the forefront of enterprise-grade generative AI innovation. Our client is revolutionizing team collaboration through secure, AI-powered assistants that enable employees to leverage cutting-edge AI safely within protected environments. As a Full Stack Software Engineer III based in beautiful San Ramon, California, you'll play a pivotal role in designing, developing, and scaling the next-generation AI platform. This full-time position offers a unique opportunity to work across the entire technology stack—from robust backend integrations to intuitive frontend interfaces—while collaborating closely with product managers, designers, AI engineers, and data scientists.

This senior-level role demands a seasoned engineer who thrives in fast-paced, innovative settings. You'll drive productivity-enhancing features powered by large language models (LLMs), prompt engineering, and AI workflows, ensuring scalability, ironclad security, and exceptional user experiences. With Robert Half's support, enjoy career stability, competitive compensation starting at $102,000 annually, and access to top-tier benefits. Ideal for full stack developers passionate about AI, this position in San Ramon, CA, combines technical depth with mentorship opportunities, making it a standout career move in the booming generative AI sector.

Key Responsibilities

Core Development Duties

Design and build AI-enabled enterprise applications that transform how teams collaborate and boost productivity. Harness large language models, advanced prompt engineering, and AI-assisted workflows to create optimized, innovative features. Craft efficient, maintainable, scalable code spanning database layers, middleware, and modern frontend technologies.

Architecture and Leadership

Develop low- to medium-complexity systems and components within expansive architectures. Serve as module-level design authority, upholding rigorous architecture and security standards. Lead code reviews, mentor Level I and II engineers, and foster a culture of technical excellence.

Testing and Quality Assurance

Plan and execute comprehensive unit testing; review test plans from junior team members. Define strategies for integration and performance testing to ensure bulletproof reliability.

Production Excellence

Troubleshoot complex production issues, implement observability frameworks, and provide advanced support. Drive continuous improvements in system performance, user experience, and operational efficiency while collaborating cross-functionally with AI specialists and product owners.

Required Qualifications

To excel as a Full Stack Software Engineer III, bring 5+ years of hands-on experience in full stack development, with a strong emphasis on AI-integrated enterprise solutions. Proficiency in languages like JavaScript/TypeScript, Python, and frameworks for scalable web applications is essential. Deep expertise in large language models, prompt engineering, database management (SQL/NoSQL), middleware, and frontend UI/UX is required.

Demonstrate proven ability to architect scalable systems, conduct code reviews, mentor juniors, and own module designs with security focus. Experience in unit/integration testing, performance optimization, production troubleshooting, and observability tools (e.g., Prometheus, Grafana) sets top candidates apart. Excellent collaboration skills and a bachelor's degree in Computer Science or related field preferred. U.S. work authorization required for this San Ramon, CA opportunity.

Why Join Us

Robert Half places you at the heart of AI innovation with unmatched benefits: competitive $102K+ salary, comprehensive health coverage, 401(k) matching, flexible hybrid work, professional growth stipends, and generous PTO. Work in vibrant San Ramon, California, amid Silicon Valley's tech ecosystem, contributing to secure generative AI that powers enterprise success. Advance your career mentoring teams, tackling cutting-edge challenges, and shaping the future of AI collaboration. Apply now through Robert Half Careers for Full Stack Software Engineer III jobs in San Ramon, CA—your gateway to transformative tech roles.