Principal Backend Engineer (AI)

TL;DR

Principal Backend Engineer (AI): Building and optimizing the DevInfra AI Front Proxy infrastructure to govern internal model calls with an accent on cost enforcement, security policy integration, and semantic caching. Focus on designing a high-availability cloud service targeting 99.95% uptime and sub-second latency to support exponential AI growth.

Location: Must be based in the United States (Remote)

Salary: $174,051 – $273,775

Company

hirify.global develops collaboration and productivity software designed to unleash the potential of every team.

What you will do

• Own the technical vision and architecture for the DevInfra AI Front Proxy cloud-hosted service.
• Design and deliver a proxy architecture ensuring 99.95%+ availability and sub-second latency.
• Develop the cost-efficiency stack, including near real-time quota enforcement, semantic caching, and model routing.
• Define security integration surfaces to enforce compliance and supply chain governance at machine speed.
• Drive the context integration layer by connecting with repository harnesses and enabling agent quality benchmarking.
• Establish a comprehensive telemetry and observability stack to track ROI, cache hit rates, and workflow effectiveness.

Requirements

• Must be based in the United States (compensation varies by geographic pay zone).
• Extensive experience in backend engineering and designing distributed cloud infrastructure.
• Proven track record of delivering high-availability, low-latency systems.
• Ability to navigate high-ambiguity roles and drive cross-functional alignment across multiple teams.
• Experience mentoring and uplifting teams of engineers across various delivery streams.

Culture & Benefits

• Competitive base pay with eligibility for bonuses and equity.
• Comprehensive health and wellbeing resources.
• Paid volunteer days to engage with local communities.
• Equitable, explainable, and consistent hiring and compensation practices.