👩‍💻

Product Engineer - Staff Engineer (Ruby/Rails)

Location
Bay AreaChicago
Department
Engineering
Cash Compensation

$150,000-$190,000

Overview

Engineer the Future of Agentic AI Security

🛠️ What you’ll do

  • Collaborate directly with our CTO and technical CEO.
  • Participate in the next big wave of protocol innovation by building the security and tooling for enterprise AI
  • Develop an AI API Gateway, providing a unified interface for enterprises managing AI agents and tools.
  • Create security and cost tooling to enhance visibility and protection within our AI Gateway platform.
  • Scale and optimize our Kubernetes-based cloud infrastructure supporting the AI Gateway.
  • Deploy and manage single-tenant environments using lightweight Kubernetes (k3s) for enterprise customers.
  • Design intuitive user interfaces that make interacting with AI agents and workflows seamless and enjoyable.

🔑 Must-have experience

  • 6–8+ years of software development experience.
  • Strong Ruby on Rails development skills.
  • Frontend UX expertise with Turbo and Stimulus.
  • API and Domain Modeling:
    • Building APIs with Rails.
    • Designing relational database models.
    • Experience thinking in terms of event systems
  • AI Familiarity:
    • Comfortable using AI coding tools (Cursor, GitHub Copilot, Claude Code).
    • Familiar with protocols such as MCP, A2A, and Server-Sent Events (SSE).
  • Cloud and DevOps skills:
    • Experience with AWS (load balancers, security groups, VPCs) or other major cloud providers.
    • Familiarity with Docker and Kubernetes (EKS, k3s).
  • Continuous Integration:
    • Experience using GitHub Actions or similar CI systems.
    • Building and maintaining automated test suites.
  • Scaling Rails applications:
    • Experience with horizontal scaling strategies, performance profiling, and database optimization

✨ Nice to have

  • Contributions to open-source projects or communities.
  • Advanced Kubernetes management experience.
  • Prior experience scaling large-scale single-tenant or multi-tenant SaaS solutions.
  • Experience designing intuitive, user-centric web interfaces.
  • Building infrastructure with Infrastructure as Code tools (Terraform, CloudFormation, Pulumi).

🎁 What we offer

✅ Hiring process

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Note Well: You are encouraged to apply even if your experience does not precisely match this job description. Studies show that people from diverse backgrounds are less likely to apply when they don't meet all qualifications. Do not let this section deter you from applying for this role. Please feel free to reach out to us with any questions at recruiting@costa.security