Staff AI Engineer

🕒 Outubro 26

🇺🇸 Estados Unidos – Remoto (EUA)

💵 $200.000 - $240.000 / ano

⏰ Tempo Integral

🔴 Especialista

🤖 Engenheiro de IA

🦅 Patrocina Visto H1B

Esta empresa já patrocinou vistos H1B no passado.

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Cobalt

SiteLinkedInTodas as Vagas

201 - 500 funcionários

🔐 Segurança

☁️ SaaS

Security • SaaS

A Cobalt é um provedor líder de serviços de segurança ofensiva, especializado em soluções modernas de pentest. Eles oferecem uma plataforma abrangente que inclui testes dinâmicos de segurança de aplicações, segurança de rede e segurança em nuvem. Conhecida como pioneira no Pentest como um Serviço (PtaaS), a Cobalt permite que as organizações escalem seus esforços de segurança de forma eficiente, com acesso sob demanda a um grupo de pentesters especializados. Seus serviços são projetados para ajudar as empresas a identificar riscos e proteger sua infraestrutura de maneira eficiente, garantindo a conformidade com os padrões da indústria. A abordagem inovadora e a comprovada experiência da Cobalt ajudam as empresas a reduzir riscos de segurança e melhorar sua postura geral de segurança.

Descrição

• Set technical direction for agent systems across teams, including orchestration, tool use, context and memory management, human oversight and failure recovery • Design, build and operate shared foundations for evaluations, observability, tracing, execution controls and model access with routing and failover • Establish evaluation practices for task completion, accuracy, false positives, security and cost per successful task • Build representative test cases with domain experts and turn production failures into regression tests • Improve resilience to tool failures, timeouts, rate limits and partial execution with limits on retries, runtime and spend • Build scoped permissions, customer data isolation, audit trails and safe tool/code execution with security and platform teams • Establish engineering standards for CI evaluations, prompt/model versioning, regression testing, cost and latency budgets, and staged rollouts • Lead model selection and cost optimization by benchmarking models against real workloads • Partner with teams on production readiness, incident investigation and agent reliability • Help engineering teams use AI coding agents across planning, implementation, review and testing • Mentor engineers and technical leads through design reviews, pairing, internal talks and written guidance • Create a technical roadmap with product, research and security leaders

🎯 Requisitos

• Significant software engineering experience, typically 8–10+ years, with a track record of technical leadership across teams • Hands-on experience building and operating LLM-based agents in production • Track record of improving agent reliability through evaluations, non-deterministic failure investigation and measurable success-rate improvements • Strong knowledge of agent architectures, including tool use, orchestration, planning, context and memory management • Experience running LLM workloads through managed cloud model platforms or direct provider APIs, including rate limits, failure handling and cost tracking • Strong backend and distributed systems fundamentals, including APIs, asynchronous workflows, concurrency and fault tolerance • Experience with production observability, incident investigation and safe rollout of system changes • Understanding of security risks in agent systems, including prompt injection, unsafe tool execution and sensitive-data exposure • Evidence of impact beyond individual code, such as shared platforms, improved standards or mentoring engineers • Experience with agent orchestration, tool calling and structured outputs • Experience with Model Context Protocol (MCP), APIs and permission-controlled tool execution • Experience with automated evaluation harnesses, domain-specific test datasets and regression testing in CI • Experience with distributed tracing, structured logs and metrics for multi-step agent workflows • Experience with managed cloud model platforms, direct provider APIs and multi-provider gateways

🏖️ Benefícios

• Competitive compensation and an attractive equity plan • 401(k) program (US) or pension (EU) • Medical, dental, vision and life insurance (US) or statutory healthcare (EU) • Wellness stipend • Work-from-home equipment and Wi-Fi stipend • Learning and development stipend • Flexible, generous paid time off • Paid parental leave • Ongoing mentorship opportunities

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