Staff Software Engineer, AI Agents

Responsibilities

• Design the orchestration model for composing, routing, scheduling, handing off, and operating AI agents across product surfaces and services.
• Create and evolve production agents for People workflows, including tools, contracts, identity, scope, failure modes, and regeneration strategies.
• Establish engineering quality standards covering evaluations, testing, observability, cost and latency controls, privacy, authorization, versioning, CI gates, and incident readiness.
• Build reliable infrastructure to process data from internal platforms including Slack, Google Docs, and Confluence.
• Define architecture, review, skills, and contract standards for engineers and coding agents.
• Partner with Product, People, Data, Security, Compliance, and platform teams on technical and business decisions.
• Mentor engineers and raise the technical bar across a growing cross-functional team.
• Support safe adoption of AI-powered products across Nubank.

Requirements

• Proven Staff-level technical leadership delivering complex production software systems.
• Hands-on experience with production agent or LLM systems, including orchestration, tool use, structured outputs, and real-world failure modes.
• Strong backend and systems engineering experience across multiple services, contracts, authentication, authorization, and data flows.
• Experience with evaluations, testing, monitoring, incident response, and continuous improvement.
• Experience designing systems involving sensitive data, privacy constraints, and human-in-the-loop product decisions.
• Ability to work through ambiguity, make architectural trade-offs, and influence senior stakeholders.
• Strong written and verbal communication skills in English.
• Willingness to work in a hybrid model from an approved Nubank office location.
• Experience with People, HR, talent, performance, or learning products is preferred.
• Experience building AI systems in regulated or privacy-sensitive environments is preferred.
• Familiarity with agent evaluation frameworks, prompt and context management, tool contracts, or multi-agent architectures is preferred.
• Experience working across international teams and multiple time zones is preferred.

Benefits

• Health insurance, life insurance, extended maternity and paternity leaves, vacations, work-from-home allowance, and potential equity earnings at Nu.
• Access to Nucleo learning courses, NuLanguage language learning, and NuCare mental health and wellness assistance.
• Hybrid work model requiring office attendance 2–3 times per week.
• Role may be based in an approved Nubank hub in Brazil, the United States, or Canada; the specific office location is confirmed during the process.
• Benefits vary by country and local regulations, with eligibility details shared during the process.