Join as the second backend engineer to build production-grade infrastructure for real-time voice interpretation. Working directly with the technical founder, you will own the core API platform that enables instant, tonally-accurate translation across multiple languages. You will architect scalable systems for high concurrency, ensuring natural, fluid conversations for global users.
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London, UKNot Disclosed
Featured roleLondon, UKNot Disclosed
Backend Engineer at Proveden Ltd — Voice AI Startup
Proveden Ltd is looking for its second Backend Engineer to architect the infrastructure behind real-time, tone-accurate voice interpretation. This isn't about maintaining legacy code; it's a build-from-scratch opportunity to own the API platform, high-concurrency scaling, and real-time voice rooms that allow people to be understood instantly in any language. If you have 4-8 years of experience, expert Python skills, and want to work directly with technical founders to solve one of the hardest problems in AI, this London-based role offers the autonomy and impact you've been looking for.
Overview
Why this role stands out
Company
Software1-10
Proveden Ltd - London-based voice AI startup building real-time interpretation infrastructure.
Responsibilities
What you will do
- Design and build a unified AI API platform to package internal capabilities into a scalable, production-ready system.
- Architect and manage high-concurrency infrastructure, including real-time voice rooms, auto-scaling, and load balancing on Azure.
- Implement critical business logic systems including usage metering, billing pipelines, and comprehensive monitoring/analytics dashboards.
Candidate profile
Who this is a fit for
- 4-8 years of backend experience with a proven track record of building and scaling production systems from the ground up.
- Expert-level Python skills with deep knowledge of distributed systems, cloud infrastructure, and database optimization.
- Experience with real-time systems or voice technologies, paired with a strong ownership mindset to thrive in a small, fast-paced team.
What makes it remarkable
Why this role is remarkable
- Ownership of a build-from-scratch opportunity where you design the core infrastructure rather than maintaining legacy systems.
- Work on cutting-edge voice AI that preserves tone and intent, solving the complex challenge of real-time, low-latency cross-language interpretation.
- Join a high-autonomy, technical founding team at a critical scaling phase with a functional product already in use.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack