Senior Software Engineer, Agents

Requirements:

• You have 5+ years of experience shipping production systems.
• You have hands-on experience building with LLMs — not just prompting, but building the systems around them: tool use, structured output, context management, evaluation, orchestration.
• You have strong backend fundamentals. You've built systems that need to be reliable, observable, and secure.
• You are comfortable with ambiguity. This is an early-stage product inside a growth-stage company. The architecture is still being figured out.
• You are self-directed. You figure out what needs to be built, build it, and ship it.
• You collaborate well with others and can communicate effectively in a fully-remote culture.

Nice to Haves:

• Experience with OpenAI/Anthropic APIs specifically.
• You've built agents that other people use.
• Experience with evaluation and observability frameworks (Langfuse, Langchain, etc).
• Familiarity with subscription business models, app stores, or developer tools.
• You've built Slack integrations or other conversational interfaces.
• Contributions to open-source AI/ML tooling.

What You'll Be Doing:

• Ship your first agent feature and get familiar with the architecture, tool ecosystem, and how Rico talks to RevenueCat's APIs.
• Identify the biggest reliability or performance gap and start fixing it.
• Meet with the team, get set up with repos, dev environment, and debugging tools.
• Familiarize yourself with RevenueCat dashboards, logging, debugging tools, cloud providers, infrastructure management and general architecture.
• Launch a brand new agentic feature to tens of thousands of developers.
• Own a core infrastructure area — orchestration, eval pipeline, tool framework, or the trust/permissions layer.
• Be able to scope and work on projects self-sufficiently.
• Learn the basics of incident response and be part of the on-call rotation.
• The agent is measurably more reliable, faster, and capable because you're here.
• You've built infrastructure that the rest of the team ships agents with.
• Review code, create proposals, and contribute to architectural discussions.
• Have shipped a major product or feature.
• RevenueCat is an AI-native company. You built the engine underneath it.
• Know all the major components of our agent system and be able to debug complex issues.
• Have your own initiatives for improving our agent products, understanding the current issues and priorities.
• Mentor other engineers joining the team.

Perks and Benefits:

• Remote-first crew of 120+, spread across 25 countries
• Guided by values: Customer Obsession, Always Be Shipping, Own It, and Balance
• Opportunity to work on an AI assistant for developers to grow their subscription revenue
• Work with a team that values collaboration and effective communication in a fully-remote culture