Senior Full Stack Engineer (Backend) - Casual AI -MarTech/AdTech (San Francisco)

PLEASE CLICK HERE TO SEE *ALL* OF OUR JOB OPENINGS!Senior Full Stack Engineer (Backend)As a Senior Full-Stack Engineer, you'll be a key player in building the technology platform that delivers these insights, working with cutting-edge algorithms and composite AI solutions. This role offers the perfect balance of technical challenge and business impact in a fast-growing environment where your contributions will be visible from day one.What You’ll DoArchitect, design, and develop full-stack applications, ensuring scalability, security, and performance.Build and optimize frontend applications using modern frameworks.Develop backend services and APIs using languages like Node.js or Python.Design and manage databases and data-intensive applications.Mentor junior and mid-level engineers, fostering a strong technical culture.Contribute to hiring and shaping the engineering team as we scale.What Will Help You Succeed:10+ years of experience as a full-stack engineer, with deep expertise in both frontend and backend development.Strong experience with JavaScript/TypeScript and modern frontend frameworks like React.Proficiency in backend development using Node.js and Python.Experience designing scalable architectures, including microservices, serverless, or event-driven systems.Deep understanding of databases, query optimization, and data modeling (PostgreSQL and Elastic).Experience working with cloud platforms (AWS, GCP, Azure) and DevOps tools (Docker, Kubernetes, Terraform, CI/CD pipelines).Strong problem-solving skills and ability to navigate ambiguous startup environments.Excellent collaboration and communication skills, with the ability to work cross-functionally. Nice-to-HavesExperience in AI/ML or working with data platforms.Previous experience in high-growth startups.Experience leading teams or projects in a fast-paced environment.Why Join?Be a foundational team member and help shape the company’s technology and culture.Onsite collaboration in their San Francisco office.Opportunity to grow into a technical leadership role as they scale.Work on cutting-edge technology and solve complex engineering challenges.Job-3508022*LI-NB1#LI-Onsite