Lead AI Engineer
3 days ago
We are a YC-backed AI startup building the worlds most advanced real-time Speech AI coach used in online calls. Over the past six months weve grown from $100k to $5M ARR raised $2.5M from top-tier investors and assembled a world-class engineering team (ex-Google Nvidia Lyft Amazon) solving hard problems in voice ML and real-time infrastructure. We are looking for a senior hands‑on engineer to lead development of our real‑time Voice AI Agent and internal ML toolkit . Youll own end‑to‑end systems across real‑time audio applied ML and production deployment working directly with our CEO and CTO. What Youll Do Build and scale our Real‑Time Voice AI Agent (LiveKit / WebRTC): streaming ASR/TTS, VAD, diarization, state machines, session management, latency/QoS tuning. Develop and ship our ML toolkit: ASR, TTS, VAD, embeddings, speaker ID models to production. Implement DSP pipelines (ffmpeg, decoding) using ONNX/TensorRT and ensure reproducibility. Contribute to backend where needed (REST/OpenAPI, Postgres/Supabase). Apply LLMs to audio: RAG, function‑calling, routing, safety, A/B testing. Design reliable real‑time systems: backpressure, retries, idempotency, batching, caching. Build data workflows: collection, cleaning, anonymization, synthetic data, offline/online evaluation. Own observability & SLOs: Prometheus, Grafana, Sentry, tracing, alerting. Deploy and operate infra: Docker, GitHub Actions, LiveKit Cloud, Modal/AWS GPU inference. What We Value Ability to move fast and deliver (high‑intensity startup mindset). Experience in big tech/strong VC‑backed startups/ research labs. Founder experience (even failed). Strong engineering fundamentals with a taste for product & design. Open‑source contributions; ML/algorithms background; Kaggle/CF/olympiads are a plus. A public presence (blog, Twitter engineering posts bonus points). Clear communication and ability to explain complex systems simply. We do not hire from outsourcing firms, Web3, or gambling. What We Offer High‑ownership role with direct impact on product and roadmap. Work directly with CEO / CTO every day. Competitive salary and meaningful equity (company valued at $20M last year). Fully async remote any timezone (via Deel). US visa support (O‑1). 12 global offsites per year (last one Bali). Clear growth path: compensation increases with delivered projects. Key Skills Administrative Skills, Facilities Management, Biotechnology, Creative Production, Design And Estimation, Architecture Employment Type Full Time Experience years Vacancy 1 #J-18808-Ljbffr
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Lead AI Engineer
7 days ago
Greater London, United Kingdom WeBuild-AI Full timeAbout WeBuild-AI :WeBuild-AI are AI natives delivering 10x value for enterprise organisations. We combine highly skilled experts with our AI Launchpad , industry-aligned language models, and agents to transform enterprise organisations into AI-powered and data-driven businesses . We work with enterprise organisations on a global stage, reinventing how they...
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Lead AI Engineer — Enterprise AI Architect
7 days ago
Greater London, United Kingdom WeBuild-AI Full timeA leading AI solutions provider in the United Kingdom seeks a Lead AI Engineer to design and deploy innovative AI solutions. The role involves leveraging advanced technology to transform client businesses. Ideal candidates have proven experience with AI/ML systems, strong Python skills, and familiarity with AWS or Azure services. Candidates should be...
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Lead AI Engineer
2 weeks ago
London, Greater London, United Kingdom WeBuild-AI Full time £80,000 - £120,000 per yearAbout WeBuild-AI:WeBuild-AI are AI natives delivering 10x value for enterprise organisations. We combine highly skilled experts with our AI Launchpad, industry-aligned language models, and agents to transform enterprise organisations into AI-powered and data-driven businesses. We work with enterprise organisations on a global stage, reinventing how they...
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Regulatory AI Engineer | Legal Tech Lead
2 weeks ago
Greater London, United Kingdom Norm AI Full timeA leading Legal & Compliance AI company in the UK is looking for a Legal Engineer to develop regulatory AI agents and collaborate with software engineering teams. Candidates should have a law degree and a minimum of 3 years in a relevant legal field. The role involves conducting legal research, communicating effectively, and leading deployments to...
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AI Engineer
7 days ago
Greater London, United Kingdom Siena AI Full timeAI Engineer Join to apply for the AI Engineer role at Siena AI. Meet Siena Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn't just...
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AI Engineer, London
2 weeks ago
Greater London, United Kingdom Eloquent AI Full timeMeet Eloquent AI At Eloquent AI, we’re building the next generation of AI Operators—multimodal, autonomous systems that execute complex workflows across fragmented tools with human-level precision. Our technology goes far beyond chat: it sees, reads, clicks, types, and makes decisions—transforming how work gets done in regulated, high-stakes...
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Greater London, United Kingdom Finster AI Full timeA pioneering finance technology company is seeking a Frontend Engineering Lead to manage a talented team of engineers. The role involves leading and optimizing front-end applications, collaborating with design and product teams, and driving the implementation of modern technologies. Ideal candidates have over 8 years of experience and strong expertise in...
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Regulatory AI Engineer | Legal Tech Lead
7 days ago
Greater London, United Kingdom Norm AI, Inc. Full timeA leading AI compliance company in Greater London is seeking a Legal Engineer to develop regulatory AI agents and support client-specific deployments. The role requires a law degree and at least three years of experience in a legal or regulatory field. You will collaborate with engineering teams and participate in significant AI deployments while enjoying a...
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AI Engineer @
3 days ago
London, Greater London, United Kingdom Eloquent AI Full timeMeet Eloquent AI (YC X25)At Eloquent AI, we're building the next generation of AI Operators—multimodal, autonomous systems that execute complex workflows across fragmented tools with human-level precision. Our technology goes far beyond chat: it sees, reads, clicks, types, and makes decisions—transforming how work gets done in regulated, high-stakes...
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Lead Learning Engineer for AI Education
7 days ago
Greater London, United Kingdom Faculty AI Full timeA leading AI technology company is seeking a Lead Learning Engineer to design and evaluate learning systems grounded in learning science. You will lead flagship education projects, create best practices for feedback loops, and mentor colleagues. The ideal candidate has proven experience in digital learning systems, strong communication skills, and an ability...
