Backend Engineer – AI

Backend Engineer – AI A1 is a self-funded AI group, operating in full stealth. We’re building a new global consumer AI application where backend systems are not glue – they are the control plane that connects models, data, users, and product experiences.

This is a founding backend role. You will design and build the systems that orchestrate models, manage prompts and evaluation, and power every AI interaction users experience – under real‑world constraints such as latency, cost, failures, and scale.

Why This Role Matters

You power every AI interaction users experience

You shape how models are orchestrated, evaluated, and improved

You directly affect cost, latency, and reliability

You build real production AI infrastructure

What You’ll Do

Design and implement backend services for AI-powered apps

Integrate LLMs, vision, speech, and other models

Build orchestration pipelines (agents, tools, workflows)

Implement prompt management and versioning

Build evaluation, logging, and feedback systems

Design scalable APIs for mobile and web clients

Handle retries, caching, rate limits, and fallbacks

Ensure security, privacy, and cost control

Requirements

4+ years of backend engineering experience

Hands‑on AI model integration experience

Strong proficiency in Python, Node.js, or Go

Experience designing REST/grpc APIs

Understanding of AI latency and cost trade‑offs

Nice to Have

Built AI systems used in production

Experience with RAG, vector DBs, or agent frameworks

Designed evaluation or monitoring systems

Our Team & Culture We operate as a dense, senior, high‑performance team. We value clarity, speed, craftsmanship, and relentless ownership. We behave like founders – we build, ship, iterate, and hold ourselves to a high technical bar. If you value excellence, enjoy building real systems, and want to be part of a small team creating something globally impactful, you’ll thrive here.

About A1 A1 is a self‑funded, independent AI group focused on building a new consumer AI product with global impact. We’re assembling a small, elite team of ML and engineering builders who want to work on meaningful, high-impact problems.

Seniority level:

Mid‑Senior level

Employment type:

Full‑time

Job function:

Engineering and Information Technology

Industry:

Software Development

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