LandOfferSenior/Staff Backend Engineer
About this role
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Role: Senior/Staff Backend Engineer
HRforGrowth® is engaged as the talent acquisition partner to conduct this search on behalf of a client organization that is hiring for this role. HRforGrowth is not the employer for this position.
HRforGrowth identifies, evaluates, and presents top-tier candidates through its global talent acquisition practice; all employment decisions — including final selection, offer terms, compensation, and conditions of employment — are made solely by the hiring organization.
Our Client is seeking a highly experienced Senior/Staff Backend Engineer with 5+ years of experience to help build and scale large-scale infrastructure for conversational AI. This position is ideal for an engineer who has built or been a core contributor to a database, queue, or large-scale data system and has a strong understanding of distributed systems and infrastructure.
The successful candidate will play a critical role in scaling simulation infrastructure from 30K to 200K+ concurrent voice agent calls while helping build a purpose-built database for conversational AI. The ideal candidate will be AI-native, strongly biased toward action, comfortable operating in a fast-paced startup environment, and experienced in scaling infrastructure under real production workloads.
Location
Remote
Job Type: Full-Time
Compensation: $160,000 – $240,000 per year
Equity: 0. 2% – 1. 0%
Visa Sponsorship: Not available; U. S. Citizens and Green Card Holders only
Key Responsibilities
- Design and implement storage structures, query paths, and retrieval systems that operate efficiently at scale.
- Scale simulation infrastructure from 30K to 200K+ concurrent calls while architecting for graceful degradation and 99.
- 99% uptime.
- Own core backend services using TypeScript/Node.
- js and Python.
- Build backend systems that orchestrate LiveKit, Temporal, STT/TTS, and LLM tooling for real-time voice agents.
- Harden production monitoring pipelines so telephony events, recordings, and outcomes propagate...
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