Founding Software Engineer

Rockstar is recruiting for a groundbreaking AI startup revolutionizing the phone sales industry with cutting-edge technology.

Our client has developed an AI phone agent that excels in conducting open-ended sales conversations, offering better conversion rates than many human call center agents. Their architecture stands out by making it remarkably simple to sculpt and adjust agent responses to critical moments in conversations. The result? A polished, interactive experience that is reshaping phone sales.

This fast-growing company is backed by experienced founders, including a Y Combinator alum and an ex-Google tech lead and NLP researcher. With a focus on innovation, scalability, and creating a fun, rewarding workplace, this is a chance to work at the forefront of applied AI.

What is the role?

This is a high-growth, hands-on technical leadership role. The successful candidate will collaborate closely with the founders to continuously re-think and re-design the company’s backend services, enabling the platform to scale to millions of daily phone calls. They will also lead technical projects, contribute to hiring, and mentor junior engineers.

Why join this team?

• The technology is revolutionary.
  The role involves solving challenging problems in applied AI with low-latency requirements for real-time speech, ensuring the stack operates at lightning speed. Creating interactive, lifelike agents offers a unique and rewarding technical challenge.
• Impact on a massive market.
  Approximately 2% of the U.S. workforce is in phone sales (~$250B in salaries), and this industry is poised for transformation through this technology. With strong product-market fit and partnerships with major players, the potential for growth is immense.
• Learn from experienced leaders.
  Collaborate with founders who prioritize building a fun, high-impact company. Work alongside a repeat founder and Y Combinator alum, as well as a former Google tech lead with NLP expertise.

Responsibilities:

• Design and build scalable backend infrastructure to support real-time communication.
• Create and maintain public APIs for use by partners.
• Develop integrations with third-party software such as CRMs, calendars, and custom APIs.
• Collaborate with backend engineers to enhance the real-time communication platform.
• Lead and mentor a team of junior engineers.
• Partner with the DevOps team to identify optimal deployment and scaling strategies.
• Support frontend engineers in building user-facing web applications.
• Work with machine learning engineers to integrate proprietary AI features.

Qualifications:

• 8–10 years of experience in backend system design.
• Expertise in building high-QPS public APIs.
• Experience at growth-stage startups (Seed+ or Series A+).
• Mastery of either Go or Python.
• Exceptional technical communication skills.

This is a rare opportunity to work on technology that is shaping the future of phone sales while being part of a fun, innovative team.