Senior Backend Engineer

R&D

San Francisco

Human

If you’re ready for the next big step in your software development career, read on.

About xpander

xpander.ai is a full-stack platform for building and running AI agents. We’re growing and looking for a key member of our core engineering team.

About the role

We are one of the only companies in the world building full-stack AI agent infrastructure. This is your chance to design, own, and scale the infrastructure that powers AI agents across every industry. We’re looking for someone who thrives on solving hard problems, builds systems that last, and thinks strategically.

In this role, you’ll focus on building robust, scalable, and efficient backend solutions that enable developers to create production-grade AI agents. You will design and optimize the platform’s architecture, implement new features, and ensure seamless integration with APIs, making it easier to build reliable and capable AI agents for any use case. This is a hands-on role that combines backend engineering with shaping the future of AI-driven development, involving both research and navigating ambiguity.

What you will do

  • 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. Yes, this means brand new pillars in the platform

  • 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

What we’re looking for

  • Minimum of 5 years in software engineering

  • At least 2 years of hands-on Python, with high proficiency

  • Proven experience designing, building, and maintaining web applications and APIs

  • Experience architecting software systems from the ground up

  • Experience with relational (PostgreSQL) and non-relational databases (MongoDB, Redis)

  • Understanding of strategies to analyze and improve system performance

  • Experience building and running AI agents

Nice-to-have

  • Hands-on experience with AWS for architecting and deploying applications

  • Experience with CI/CD, containerization (Docker), and orchestration (Kubernetes)

If you’re ready for the next big step in your software development career, read on.

About xpander

xpander.ai is a full-stack platform for building and running AI agents. We’re growing and looking for a key member of our core engineering team.

About the role

We are one of the only companies in the world building full-stack AI agent infrastructure. This is your chance to design, own, and scale the infrastructure that powers AI agents across every industry. We’re looking for someone who thrives on solving hard problems, builds systems that last, and thinks strategically.

In this role, you’ll focus on building robust, scalable, and efficient backend solutions that enable developers to create production-grade AI agents. You will design and optimize the platform’s architecture, implement new features, and ensure seamless integration with APIs, making it easier to build reliable and capable AI agents for any use case. This is a hands-on role that combines backend engineering with shaping the future of AI-driven development, involving both research and navigating ambiguity.

What you will do

  • 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. Yes, this means brand new pillars in the platform

  • 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

What we’re looking for

  • Minimum of 5 years in software engineering

  • At least 2 years of hands-on Python, with high proficiency

  • Proven experience designing, building, and maintaining web applications and APIs

  • Experience architecting software systems from the ground up

  • Experience with relational (PostgreSQL) and non-relational databases (MongoDB, Redis)

  • Understanding of strategies to analyze and improve system performance

  • Experience building and running AI agents

Nice-to-have

  • Hands-on experience with AWS for architecting and deploying applications

  • Experience with CI/CD, containerization (Docker), and orchestration (Kubernetes)

Apply for this role

Applying for: Senior Backend Engineer