Senior Software Engineer | Voice | Full-Stack

DeepL
London
Workplace: HybridFull timeFunction: Software EngineeringSkills: ["Product-first mindset","Customer obsession","High agency","Cross-functional collaboration","Problem-solving"]

Build end-to-end features for real-time voice interpretation, helping eliminate transcript flicker and meet ultra-low-latency requirements. Work in a 0-to-1, cross-functional squad with researchers, product managers, and designers to develop streaming audio services, AI inference integration, and high-performance frontend UIs. You’ll debug complex edge cases in unstable networks and optimize the conversational experience from product flow through backend architecture.

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FursaFursa
DeepL
DeepL
1 day ago

Senior Software Engineer | Voice | Full-Stack

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Source: Company careers pageValidated by: Fursa AI
Last checked: 10 hours agoStatus: Live

Job Summary

Build end-to-end features for real-time voice interpretation, helping eliminate transcript flicker and meet ultra-low-latency requirements. Work in a 0-to-1, cross-functional squad with researchers, product managers, and designers to develop streaming audio services, AI inference integration, and high-performance frontend UIs. You’ll debug complex edge cases in unstable networks and optimize the conversational experience from product flow through backend architecture.
Location: London
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Ship end-to-end features across frontend UIs, backend services, and AI inference integration for voice.
  • •Build and deploy streaming audio services that support fluid, real-time interpretation.
  • •Tackle real-time complexity by debugging latency spikes, transcript flicker, audio glitches, and unstable network edge cases.
  • •Prototype new capabilities quickly and refactor for production scale as requirements evolve.
  • •Collaborate with PMs, product designers, and AI researchers to scope, shape, and solve product and technical challenges.

Pay and Benefits

Perks:Paid LeaveEquity

Key Requirements

  • •Comfort prototyping in ambiguity and refactoring for scale in a 0-to-1 environment.
  • •Full-stack fluency to build modern UIs in React and TypeScript and ship backend services in Node.js/TypeScript (or a strongly transferable language).
  • •Experience with real-time, latency-sensitive systems such as WebRTC, WebSockets, and streaming architectures.
  • •Ability to debug and resolve real-time edge cases (latency spikes, transcript flicker, audio glitches) including in unstable network environments.
  • •High agency and a product-first mindset focused on end-user conversational flow and outcomes.
Experience:AILLMsReal-time communication
Skills:Product-first mindsetCustomer obsessionHigh agencyCross-functional collaborationProblem-solving
Tech Stack:ReactTypeScriptNode.jsWebRTCWebSocketsStreaming architecturesGitHub CopilotClaudeNVIDIA DGX SuperPODs

Company Brief

DeepL
DeepL builds Language AI products (DeepL Translator, DeepL Write, APIs and enterprise solutions) that provide high-accuracy translations and writing assistance to businesses and individuals, focusing on privacy, security and enterprise deployment.
Industry: AI & Machine Learning
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series D
Headquarters: Cologne, Germany
Founded: 2017
Glassdoor
Glassdoor: 3.5
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