Mirage

Software Engineer, AI Developer Platform

Mirage
Apply
2 days ago

Base Salary

$175k - $300k/yr

Responsibilities

  • Ship product and platform features across video creation software, the video rendering engine, and the developer platform.
  • Build internal developer tools, coding-agent workflows, sandboxes, ephemeral environments, and productivity systems.
  • Rebuild CI/CD with incremental builds, test selection, flaky-test detection and quarantine, merge queues, and preview environments.
  • Implement progressive rollouts, canary analysis, feature flags, automatic rollback, and other safe deployment mechanisms.
  • Create AI-assisted code review, risk-based human review routing, automated policy checks, and merge gating.
  • Run continuous agent-driven penetration testing and turn findings into pull requests with proposed fixes.
  • Integrate secrets, dependency, supply-chain, vulnerability, and security scanning into the development pipeline.
  • Secure agent access using least-privilege permissions, short-lived credentials, sandboxing, audit logs, and prompt-injection guardrails.
  • Measure and improve PR-to-production time, credential management, flaky-test rates, and the overall development lifecycle.

Requirements

  • 5+ years of professional experience building backend or full-stack software.
  • Track record of shipping high-impact products or systems end to end.
  • Hands-on experience with CI/CD, cloud infrastructure, or security.
  • Extensive current experience using coding agents and informed opinions about their limitations.
  • Strong security instincts and the ability to consider attack scenarios during development.
  • Comfort owning build, deployment, code review, and security systems together and defining a roadmap without an established playbook.
  • Strong product sense, practical measurement-driven decision-making, and interest in shipping to production regularly.
  • Preferred experience includes internal developer platforms, productivity tooling, offensive security, penetration testing, red teaming, bug bounties, CTFs, production LLM agents or evaluations, merge queues, monorepo tooling, test-impact analysis, or startup founding and early-stage engineering.

Benefits

  • Comprehensive medical, dental, and vision plans.
  • 401(k) with employer match.
  • Commuter benefits.
  • Catered lunch multiple days per week, dinner stipend when working late, and a Grubhub subscription.
  • Health and wellness perks.
  • Multiple team offsites per year and monthly team events.
  • Generous PTO policy.
  • Most roles require in-person work at the NYC headquarters in Union Square; benefits apply to full-time employees only.

Categories

Mirage

About Mirage

51-200 employees

At Mirage, we’re building full-stack foundation models and products that redefine video creation. Over 20 million content creators and businesses use Captions to reach their full creative and commercial potential.

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