Backend Engineer, AI

A1 is building a proactive AI system that carries work forward across conversations, tools, and time.

You will build the systems that power every AI interaction users experience. Your work will sit at the intersection of models, orchestration, APIs, and product behavior - where correctness, latency, and reliability actually matter.

• Build and operate backend systems that serve AI-powered features in production.
• Design inference pipelines, orchestration layers, and service boundaries around models.
• Own production concerns: monitoring, logging, alerting, and incident response.
• Optimize latency and throughput across inference, caching, batching, and streaming.

• Experience running high-throughput, low-latency services.
• Familiarity with AI inference patterns (LLMs, embeddings, multimodal).
• Bias toward shipping and learning from production behavior.
• Python
• Node Js
• Pytorch
• OpenAI / Anthropic / open-source LLMs
• SQL & noSQL
• Docker

$255K – $405K

Our organization is very flat and our team is small, highly motivated, and focused on engineering and product excellence. All members are expected to be hands‑on and to contribute directly to the company’s mission.

If there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews.

Applications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite.

We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.