Senior Software Engineer (Backend / AI / Python / LLM)

Join a high-growth AI start-up building backend systems powering conversational AI agents for outbound calls, delivered as production-grade enterprise platforms.

Shape the technical direction at the leading edge of conversational AI, working on LLM agent systems and scalable, reliable backend infrastructure within a high-caliber engineering team.

Backed by top-tier investors and experienced operators from leading AI companies, the business has achieved strong product-market fit, is operating at the leading edge of AI innovation, and is now approaching its Series C stage of growth. They have an entrepreneurial, high-ownership culture that encourages engineers to think independently, challenge assumptions, and build creative, outside-the-box solutions.

You’ll be based onsite in Miami, owning the design and development of core backend and platform systems that power performance, reliability, and scale. You’ll work primarily across a modern backend: Python/FastAPI services, LLM integrations, data infrastructure, and cloud environments, while helping set the engineering standard as the team grows.

This role is ideal for an engineer who thrives in fast-paced environments, enjoys solving hard backend and AI infrastructure problems, and wants clear progression., * Design and build core backend systems powering LLM and AI platform performance

• Develop scalable Python / FastAPI services
• Own and evolve the data layer (PostgreSQL / Supabase)
• Work within a high-calibre, AI-obsessed engineering team
• Venture-backed start-up with product-market fit, approaching Series C

Do you have experience in Technology infrastructure engineering?, * Strong backend engineering experience with Python (FastAPI a plus)

• Experience working with or integrating LLMs / AI systems
• Strong understanding of PostgreSQL and data modeling
• Strong focus on testing, performance, and reliability
• Experience scaling backend systems in high-growth environments
• Looking to join a high-performance, ambitious engineering environment

Pulled from the full job description

• 401(k)
• Paid time off, $150,000 - $210,000 + Equity + 401(k) + Medical + PTO + Relocation + Progression, Rise Technical Recruitment Inc of 1011 Centre Rd, Suite 322, Wilmington, DE 19805 act as an employer-paid private personnel agency.

The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client.