Software Engineer, Horizon

Job summary

Responsibilities

We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers.

• Build primitives for self improvement: Create the feedback loops, evaluation systems, memory, signals, and decisioning infrastructure that help long-running agents learn from…
• Build the future of long-horizon agents: Design and ship agents that pursue complex business outcomes over days, weeks, or months across voice, SMS, email, and other channels.
• Turn 0-to-1 work into a platform: Identify patterns and build reusable systems, abstractions, and tools that make future Horizon agents faster and easier to launch.
• Solve technically complex problems: Build across orchestration, integrations, data, memory, signals, decisioning, observability, and multi-channel engagement.
• Shape the Horizon product: Surface platform gaps through hands-on implementation and work with product and engineering to define Horizon’s architecture and roadmap.

What they're looking for

• Experience building and scaling end-to-end production systems.
• Strong platform and systems engineering fundamentals.
• The ability to move between customer problems, product design, and technical implementation.
• Strong technical judgment in ambiguous, fast-changing environments.
• A builder’s mindset and the ability to take products from zero to one.

Tech stack

• Python
• TypeScript
• Go
• React