Senior Backend Engineer for AI Developer Platform

Mirage; New York (NY); On-site; USD 160,000 - 210,000; Full time

Benefits offered by this job

Health insurance

401K with employer match

Commuter Benefits

Catered lunch

Dinner stipend

Grubhub subscription

Health & Wellness Perks

Multiple team offsites

Job summary

Mirage is hiring a backend engineer to rebuild how we ship software as AI agents dramatically increase the volume of code we produce. You’ll own the path from commit to production, ensuring our build, test, review, deployment, and security systems help engineers and their agents ship quickly and safely.

You’ll treat our development infrastructure like a product—working directly with engineers to understand friction, measure bottlenecks, and build tools they want to use.

Qualifications

• 5+ years of professional backend or full-stack experience.
• Hands-on experience with CI/CD, cloud infrastructure, or security.
• Strong product sense with focus on engineers as users.
• Experience with coding agents is a plus.

Responsibilities

• Ship features across video creation software and platform.
• Turn insights into tools, agents, and streamlined workflows.
• Rebuild CI/CD to support 100x change volume and flaky-test detection.
• Make deployments safe by default with progressive rollouts and canary analysis.
• Own environments for coding agents, including sandboxes and ephemeral stacks.
• Build an AI review pipeline with agent reviewers and policy checks.
• Run continuous security testing and turn findings into fixes.
• Integrate security into the development pipeline with scans and governance.
• Secure access with least-privilege and short-lived credentials.
• Measure and improve the development lifecycle to reduce PR-to-production time.

Skills

Backend development

Full-stack development

CI/CD

Cloud infrastructure

Security engineering

Agent technology

Product-minded

Build and deployment

Tools

CI/CD tooling

Monorepo tooling

Security tooling

Job description

Mirage is hiring a backend engineer to rebuild how we ship software as AI agents dramatically increase the volume of code we produce. You’ll own the path from commit to production, ensuring our build, test, review, deployment, and security systems help engineers and their agents ship quickly and safely.

You’ll treat our development infrastructure like a product—working directly with engineers to understand friction, measure bottlenecks, and build tools they want to use.