Senior Backend Engineer, AI Platform & Scalable APIs

Xpander, Inc.; San Francisco (CA); On-site; USD 150,000 - 230,000; Full time

Job summary

XPander, Inc. is seeking a senior backend engineer to design and scale the infrastructure powering AI agents on the xpander.ai platform. You will own backend architecture and drive end-to-end development, from design to deployment.

The role emphasizes building robust APIs, microservices, and data integrations with PostgreSQL, MongoDB, and Redis, with a hands-on focus on performance, reliability, and scalable systems for diverse use cases.

Qualifications

• Minimum of 5 years in software engineering.
• 2+ years hands-on Python development.
• Experience building web applications and APIs.
• Experience designing scalable software systems.
• Familiarity with PostgreSQL, MongoDB, and Redis.
• Knowledge of performance optimization techniques.
• Experience with AI agents is a plus.

Responsibilities

• Design, develop, and maintain the core backend architecture of our AI-driven platform.
• Take ownership of end-to-end development processes, from design to deployment.
• Build and deploy scalable APIs, microservices, and systems that enable seamless AI agent workflows.
• Research and integrate advanced technologies to improve system scalability and reliability.
• Ensure code quality through testing, code reviews, and best practices.

Skills

Python

API design

System design

Backend engineering

Web architecture

Tools

PostgreSQL

MongoDB

Redis

Docker

Kubernetes

AWS

CI/CD

Job description

XPander, Inc. is seeking a senior backend engineer to design and scale the infrastructure powering AI agents on the xpander.ai platform. You will own backend architecture and drive end-to-end development, from design to deployment.

The role emphasizes building robust APIs, microservices, and data integrations with PostgreSQL, MongoDB, and Redis, with a hands-on focus on performance, reliability, and scalable systems for diverse use cases.