2 months ago
Mexico City, MexicoSenior
Responsibilities
- Design, build, and own the agent platform orchestration layer and internal-system tool integrations.
- Develop APIs, data access patterns, and service integrations that enable agents to execute operational workflows.
- Architect knowledge and memory infrastructure for agent retrieval and cross-system actions.
- Implement trust and safety capabilities including audit trails, human-in-the-loop controls, and guardrails.
- Build agent evaluation and testing infrastructure for accuracy, reliability, and regression measurement.
- Partner with Operations to identify automation opportunities and convert process knowledge into agent capabilities.
- Mentor engineers as the foundational team grows.
Requirements
- At least five years of backend engineering experience building and operating production systems.
- Hands-on experience with LLMs and AI agents, including orchestration, retrieval-augmented generation, or tool/function calling.
- Strong API design and system integration skills.
- Product-minded approach with the ability to contribute to product decisions and question requirements.
- Proven ownership of complex projects in ambiguous, early-stage environments.
- Ability to design, build, and operate production systems with strong backend fundamentals.
- Curiosity and motivation to develop practical expertise in AI, LLMs, and agent systems.
- Ability to work pragmatically and autonomously in a fast-paced environment.
Benefits
- Welcoming, casual, and supportive startup environment.
- Great benefits and wellness program offerings.
- Company retreats and opportunities to interact with and learn from startup community leaders.
- Role based in the Justworks Mexico City office.
Tech Stack
Apache KafkaAWSC#CircleCIDatadogDockerElasticsearchGitGoJavaJavaScriptKubernetesMySQLPythonRedisRuby on RailsTerraform
Categories
About Justworks
Justworks provides a PEO and SaaS platform for small and midsize businesses to run payroll, offer benefits, and manage HR and compliance. Products include access to health insurance and 401(k), payroll and contractor payments, onboarding tools, and reporting, sold via subscriptions and PEO service fees. Founded in 2012 and headquartered in New York City, the company is privately held and serves employers across the United States.