Senior Backend Engineer, AI Agent Platform

Lightningai; Greater London; Hybrid; GBP 136,000 - 189,000; Full time

Benefits offered by this job

Health coverage

Equity and bonuses

401(k) matching (US)

Job summary

Lightning AI seeks a Senior Software Engineer to design and build backend systems powering its agent platform. You will work on orchestration frameworks, tool execution, workflow management, and APIs that let customers deploy sophisticated AI applications.

You’ll collaborate with Core Platform, Training & Experimentation, Sandboxes, and Compute teams to deliver reliable, scalable, and developer‑friendly capabilities. Hybrid London/US hubs with in‑office days.

Qualifications

• Experience building scalable backend systems (Go, Python, Rust or similar).
• Strong knowledge of distributed systems and cloud-native architectures.
• Experience designing and operating production services at scale.
• Hands-on experience with backend platforms and developer tools.
• Familiarity with Docker and Kubernetes in cloud environments.
• Proven ability to own large technical initiatives from design to production.

Responsibilities

• Design and build backend services that power AI agent orchestration and execution.
• Develop scalable APIs and platform capabilities for tool use, workflow orchestration, memory, and state management.
• Build reliable infrastructure that enables long‑running, distributed AI workflows.
• Partner with product, research, and platform engineering teams to bring new agent capabilities into production.
• Improve platform reliability, observability, and performance as customer workloads continue to scale.
• Evaluate and strengthen technical architecture, engineering processes, and developer tooling.
• Maintain high standards for software quality through testing, automation, continuous delivery, and proactive management of technical debt.
• Mentor engineers on system design, distributed systems, and backend engineering best practices

Skills

Backend systems design

Go/Python/Rust

Distributed systems

APIs

Cloud-native architectures

Developer tooling

Tools

Docker

Kubernetes

AWS/GCP/Azure

Job description

Lightning AI seeks a Senior Software Engineer to design and build backend systems powering its agent platform. You will work on orchestration frameworks, tool execution, workflow management, and APIs that let customers deploy sophisticated AI applications.

You’ll collaborate with Core Platform, Training & Experimentation, Sandboxes, and Compute teams to deliver reliable, scalable, and developer‑friendly capabilities. Hybrid London/US hubs with in‑office days.