22 hours ago
Base Salary
$175k - $300k/yr
Responsibilities
- Ship product features across Mirage’s video creation software, rendering engine, and developer platform.
- Build developer tools, agents, workflows, and internal platforms that reduce engineering friction and improve delivery speed.
- Rebuild CI/CD with incremental builds, test selection, flaky-test detection, merge queues, and preview environments.
- Implement progressive rollouts, canary analysis, feature flags, and automated rollback for safer deployments.
- Own sandboxes, ephemeral stacks, and tooling used by coding agents to build, test, and verify code.
- Build AI-assisted code review with risk-based routing and automated policy checks.
- Run continuous penetration testing and turn findings into pull requests with proposed fixes.
- Integrate secrets, dependency, and supply-chain scanning with AI-assisted vulnerability triage and automated fix pull requests.
- Secure agent access through least-privilege permissions, short-lived credentials, sandboxing, audit logs, and prompt-injection guardrails.
- Measure and improve development lifecycle metrics such as PR-to-production time, credential longevity, and flaky-test rates.
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 use of coding agents in current work.
- Strong security instincts and ability to think through how systems could be attacked.
- Comfort owning build, deployment, review, and security across layers and defining a roadmap without an established playbook.
- Strong product sense, measurement-driven problem solving, and willingness to ship to production regularly.
- Preferred experience includes internal developer platforms, developer 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 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.
- Grubhub subscription.
- Health and wellness perks.
- Multiple team offsites per year and monthly team events.
- Generous PTO policy.
- Most roles require working in person at the NYC headquarters in Union Square; benefits apply to full-time employees only.
About Mirage
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.