Backend Engineer, AI

Location: United Kingdom; hybrid work in London, Greater London

Company

hirify.global is building a proactive AI assistant for conversations, errands, organization, and everyday workflows.

What you will do

• Build and operate backend systems serving AI-powered product features in production.
• Design inference pipelines, model orchestration layers, and service boundaries.
• Develop fast, stable, observable APIs for mobile and desktop clients.
• Own monitoring, logging, alerting, and incident response for production systems.
• Optimize latency and throughput across inference, caching, batching, and streaming.

Requirements

• Strong backend engineering fundamentals in production environments.
• Experience operating high-throughput, low-latency services.
• Familiarity with AI inference patterns, including LLMs, embeddings, and multimodal models.
• Ability to debug distributed systems under load.
• Experience with Python, Node.js, PyTorch, SQL and NoSQL databases, Kubernetes, and Docker.

Culture & Benefits

• Work with a small, high-talent-density, hands-on team.
• Make decisions collectively and move at a rapid pace while balancing quality with learning.
• Work independently by bringing structure, exercising judgment, and executing with ownership.
• Interviews are conducted virtually and/or onsite.
• Expect a prompt hiring decision after three to four interviews if there is a strong fit.

Hiring process

• Applications are evaluated by technical team members.
• Participate in three, and no more than four, interviews conducted via virtual meetings and/or onsite.
• A prompt decision follows the interview process.