Location: Manhattan, NY (Onsite) | Compensation: $200,000 – $300,000 | Equity: 0.25% – 1%
About CollectWise
CollectWise is a YC-backed startup using generative AI to automate debt collection in a $35B US market. Their AI agents are already outperforming human collectors by 2x at significantly lower cost. With a team of five, they have scaled to a $2M annualized run rate and are targeting $10M ARR within the year.
The Role
This role owns the full voice AI stack end-to-end. You will design and build real-time conversational agent systems that operate at production scale across millions of interactions. The role combines infrastructure engineering, prompt engineering, and applied AI in a highly regulated environment.
What You'll Do
- Build and own voice AI infrastructure on top of LiveKit
- Design orchestration systems including state management, latency optimization, and reliability
- Own prompting strategy including conversation flows, tone, compliance-safe language, and edge-case handling
- Develop evaluation frameworks including A/B testing, regression testing, and KPI tracking
- Continuously improve voice agent performance using real-world call data and outcomes
- Optimize ASR, STT, TTS, turn-taking, and interruption handling
- Build scalable systems supporting millions of voice interactions
- Migrate legacy implementations to modern voice AI infrastructure
- Collaborate with product, operations, and leadership to align technical systems with business outcomes
What We're Looking For
- 2+ years experience in voice AI, conversational AI, prompt engineering, or speech systems
- 3+ years experience in backend, platform, or infrastructure engineering
- Strong experience with Node.js, AWS, and SQL
- Experience building and shipping production systems in fast-paced environments
- Experience with voice orchestration frameworks such as LiveKit or similar
- Strong prompt design and conversational flow development skills
- Strong analytical ability to tie system performance to business metrics
- Excellent English communication skills required
- Must be based in or willing to relocate to NYC and work onsite
No visa sponsorship available.
Interview Process
Initial call with Founder and CEO → Take-home assignment → Technical interview → Offer