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

- **Company:** Three Pillars
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Microsoft Azure, Big Data, Cloud Computing, Databases, Continuous Integration, Database Design, DevOps, Design of User Interfaces, Human-Computer Interaction, Python (Programming Language), PostgreSQL, Node.Js, Query Optimization, TypeScript, Web Application Frameworks, Google Cloud, ReactJS, Backend, Event Driven Architecture, Kubernetes, Data Management, Front End Software Development, Terraform, Serverless Computing, Docker, Microservices
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-full-stack-engineer-backend-casual-ai-martech-adtech-san-francisco-ca--64750871-fee4-45da-a618-252cae0f2e05

## About the Role

Artificial Intelligence (AI), Adtech, Algorithms, Artificial Intelligence (AI), Technical Delivery, Database Administration, Data Management, Database Design, Mentoring, User Interface/Experience (UI/UX), 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., * 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-Haves

 * Experience in AI/ML or working with data platforms.
 * Previous experience in high-growth startups.
 * Experience leading teams or projects in a fast-paced environment.

## Description

* Architect, 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.