As the second backend engineer, you will work directly with the technical founder to build the production-grade infrastructure powering real-time voice interpretation. You will own the core architecture from scratch, designing a unified API platform that preserves tone and intent across multiple languages, ensuring high concurrency and system reliability at scale.
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London, United KingdomNot Disclosed
Backend Engineer at London-based voice AI startup
Are you ready to build the infrastructure behind real-time voice interpretation? We are looking for the second backend engineer to join a technical founding team in London. This isn't just word-for-word translation; it's a platform that preserves tone and meaning instantly. You’ll have a seat at the table to design a unified AI API, handle high-concurrency systems on Azure, and build the billing and data pipelines from scratch. If you have 4-8 years of experience and thrive in a high-autonomy environment where you own the architecture, this is your chance to solve one of the hardest problems in voice AI.
Overview
Role overview
Company
Proveden Ltd
Software1-10 employees
London-based voice AI startup building real-time interpretation infrastructure
Responsibilities
What you will do
- Architect and maintain a unified AI API platform to package internal capabilities for high-scale external use cases.
- Design and implement critical backend systems for billing, usage metering, and complex real-time voice room infrastructure.
- Build and optimize high-concurrency data pipelines and cloud infrastructure on Azure, incorporating automated scaling and load balancing.
Candidate profile
Who this is a fit for
- 4-8 years of experience building and scaling production-grade backend systems with a high degree of autonomy and technical ownership.
- Strong proficiency in Python and solid experience with distributed systems, cloud infrastructure (specifically Azure), and database design.
- Experience with real-time systems and high-concurrency design, with the ability to build monitoring and analytics dashboards from scratch.
What makes it remarkable
Why this role is remarkable
- Direct impact as the second backend hire, working alongside the technical founder to design and build core infrastructure from the ground up rather than maintaining legacy systems.
- Tackle one of the hardest problems in voice AI: real-time interpretation that preserves tone and intent, moving beyond robotic word-for-word translation.
- Join a technical founding team with a working product already featuring multiple modes (translate, share, connect, meet) ready for production-grade scaling.
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