Senior Software Engineer

Recruiting From Scratch • San Francisco, CA

12d • Onsite

About The Position

We're representing a rapidly growing AI startup building next-generation voice automation infrastructure for enterprise customers. Their platform combines proprietary speech models, real-time voice systems, and custom orchestration technology to deliver AI-powered voice and messaging experiences at scale. The company has achieved strong early enterprise traction, serving customers with large annual contract values while building entirely in-house AI and infrastructure systems. With significant funding secured and aggressive growth plans ahead, they are expanding their engineering team to help scale both the platform and the business.

Requirements

• 6+ years of professional software engineering experience.
• Strong experience building and operating production-grade software systems at scale.
• Proven success working in both startup environments and larger engineering organizations.
• Expertise in Python and modern backend development practices.
• Experience with TypeScript and full-stack development, or deep backend/distributed systems expertise.
• Strong system design and architecture skills with experience scaling high-volume applications.
• Demonstrated ownership of large technical initiatives from conception through production.
• Excellent communication skills with the ability to explain complex technical concepts to both technical and non-technical audiences.
• Strong mentorship experience and interest in helping build engineering teams.

Nice To Haves

• Experience with GraphQL, React, and modern web application architectures.
• Background in voice AI, conversational AI, speech systems, communications platforms, or real-time infrastructure.
• Experience scaling distributed systems with demanding latency and reliability requirements.
• Previous founding engineer, early engineer, or startup leadership experience.
• Experience building customer-facing enterprise software products.
• Strong understanding of observability, infrastructure, and operational excellence.
• Computer Science or STEM degree from a highly regarded university.

Responsibilities

• Own major product and infrastructure initiatives across real-time voice systems, customer-facing applications, analytics platforms, and backend services.
• Design, build, and scale highly available distributed systems that support large-scale real-time communications workloads.
• Develop and maintain full-stack product experiences, including customer dashboards, operational tooling, and self-service capabilities.
• Build new AI-powered product features and automation workflows that directly impact enterprise customer adoption and revenue growth.
• Architect systems for performance, reliability, and scalability as platform usage expands significantly.
• Work directly with customers to understand product requirements and translate feedback into technical solutions.
• Own projects end-to-end, from scoping and design through implementation, deployment, and iteration.
• Partner closely with leadership to influence product direction, technical strategy, and engineering best practices.
• Mentor engineers and contribute to building a strong engineering culture as the team grows.

Benefits

• Competitive equity package.
• Opportunity to join a high-growth AI company at an early stage of scale.
• Direct ownership of product lines with measurable business impact.
• Clear path toward technical leadership and people management opportunities.
• Work alongside a small, highly technical team building proprietary AI infrastructure.
• Visa support available for select transfer-friendly visa categories.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior