Founding Software Engineer

New Yesterday

Join to apply for the Founding Software Engineer role at Elyos AI.

This range is provided by Elyos AI. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Build the future of AI voice: LLMs, speech-to-text, text-to-speech, real-time automation at scale, you name it. Solve hard problems & ship world-changing tech with a world class team.

Responsibilities

  • Build and ship core product features across our stack (Python, TypeScript, cloud infra, event-driven systems, third party integrations).
  • Own the lifecycle: work directly with customers to understand their needs, scope solutions, and deliver outcomes.
  • Move fast when it matters: know when to hack an MVP to deliver value quickly, and when to invest in scalable foundations.
  • Raise the bar: use best practices everywhere (e.g., testing, documentation, reliability, security) and help others do the same.

Who You Are

  • Customer-obsessed: You start with the customer, empathise with their needs, ask the right questions, and build with their success in mind.
  • Biased for action: You try stuff, move quickly, experiment often, and aren’t afraid to learn in public.
  • Owner’s mindset: You take responsibility for outcomes and raise the bar for the whole team.
  • Ambitious & bold: You think big and explore new ideas, technologies, and markets.
  • Team-first collaborator: You contribute to a positive team environment and support others in thriving.
  • Care deeply about quality: you strive for high-quality work and improvement.

What You Bring

  • Strong fundamentals in software engineering — you can design, debug, and ship reliable systems.
  • Proficiency with at least one core language (Python or TypeScript) or demonstrated ability to learn what’s needed.
  • Experience building and shipping AI products end-to-end (startup, side project, open source, or scale in a larger company).
  • Comfort across the stack — frontend, backend, infrastructure. You are comfortable across layers.
  • Ability to work directly with customers or non-technical stakeholders to scope, negotiate, and deliver solutions.
  • A track record showing drive: launching something independently, contributing to open source, or taking ownership of challenging projects.

Bonus If You Have

  • Early-stage startup experience, especially in AI, voice platforms, or event-driven systems.
  • Familiarity with modern cloud infrastructure (Kubernetes, serverless, distributed systems).
  • Evidence of customer empathy — support experience, founder experience, or building solutions that solve real user pain.

Perks & Benefits

  • Competitive salary & equity — we build together and win together.
  • AI-focused learning & development — stay ahead of the curve.
  • Team socials & annual offsites — destinations included (last year we went to Greece).
  • Private healthcare — because your well-being matters.

Seniority level

  • Mid-Senior level

Employment type

  • Full-time

Job function

  • Engineering and Information Technology
  • Industries: Software Development
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Location:
London, England, United Kingdom
Salary:
£150,000 - £200,000
Job Type:
FullTime
Category:
IT & Technology

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