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Senior Backend Engineer at AethexAI Inc

AethexAI Inc is seeking its first dedicated Senior Backend Engineer to own the infrastructure and Python stack for their revolutionary voice-AI platform. As a London-based pre-seed startup building foundational voice technology for emerging markets across Africa and the Middle East, this role offers the chance to build global infrastructure from scratch while holding a high-impact, foundational position. This is a rare opportunity for a senior engineer to secure meaningful equity and tackle complex real-time AI challenges within an ambitious, in-office team tackling underserved high-growth markets.

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AethexAI Inc

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Location

London, United Kingdom

Compensation

£100k + Equity

Company

AethexAI Inc

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Role overview

As the first dedicated backend and infrastructure hire at AethexAI Inc, you will own the Python, AWS, and Kubernetes stack end-to-end. You will build and scale the core infrastructure for a real-time voice AI platform, making architectural decisions that define the company’s technical foundation while serving high-growth markets across Africa and the Middle East.

AethexAI Inc is an enterprise voice‑AI infrastructure company building the voice stack for emerging markets, from core speech models through to secure enterprise deployment tooling. The company designs and delivers voice agent systems that work reliably in real‑world conditions and are optimized for the linguistic and infrastructure realities of regions such as Africa and the Middle East, including support for localized dialects of English, French, Arabic and African languages. Its platform provides organizations and developers with self‑hosted and hybrid (on‑device and cloud) speech technology that meets stringent privacy, compliance and latency requirements in regulated sectors like finance, healthcare, telecommunications and customer service. By combining small, market‑localized speech models with an orchestration layer tailored to low‑bandwidth and high‑latency environments, AethexAI enables enterprises to deploy human‑sounding, low‑latency voice agents and automation solutions that reduce costs while expanding access to digital services across emerging markets.

What you will do

  • Design and scale the core Python backend and AWS infrastructure to support high-performance, real-time voice AI workloads.
  • Implement and manage Kubernetes clusters to ensure high availability and robust performance across diverse geographic regions.
  • Lead foundational architectural decisions that establish the reliability, security, and scalability of the AethexAI Inc platform from the ground up.

Who this is a fit for

  • Proven experience as a Senior Backend Engineer with deep expertise in Python and production AWS cloud environments.
  • Strong background in container orchestration using Kubernetes and a track record of building scalable, distributed infrastructure systems.
  • High-ownership mindset with a desire to work in an early-stage, in-office startup environment and solve complex real-time engineering challenges.

Why this role is remarkable

  • Own the entire backend and infrastructure stack as the first dedicated hire in this domain with massive technical autonomy.
  • Build production-scale real-time voice AI technology specifically designed for underserved, high-growth emerging markets in Africa and the Middle East.
  • Secure a foundational role with meaningful equity in a pre-seed startup, working directly on core systems that will shape the company’s future.

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If your profile’s a match and AethexAI Inc wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.

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