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Germany Unlimited PTO

  • Lead the architecture and evolution of an open-source speech-to-speech library.
  • Integrate cutting-edge ASR, TTS, and speech models while maintaining clean abstractions.
  • Collaborate with a distributed team to build production-ready voice agent infrastructure.

Python Machine Learning Distributed Systems WebRTC

20 jobs similar to Senior Machine Learning Engineer, Voice Agents

Jobs ranked by similarity.

Germany

  • Act as the technical bridge between product and customer setups, translating business requirements into production-ready implementations.
  • Lead end-to-end rollouts of AI assistant configurations in production, including workflows, logic, data flows, prompts, and guardrails.
  • Implement integrations with third-party systems via APIs and webhooks, covering CRMs, calendars, ticketing, payments, and common auth patterns.

This company builds AI phone assistants for small and medium-sized businesses. The team is lean (~50 people) and growing rapidly with a strong engineering culture and a proprietary orchestration layer built in-house.

Global 7w PTO

  • Own the ML strategy for dialogue systems, lead a team of 3 ML engineers, and drive LLM post-training and model adaptation.
  • Build evaluation layers, cut dialogue failure modes, and keep inference efficient on latency and cost.
  • Stay hands-on with prototypes, debugging agent traces, and reviewing team work.

Social Discovery Group (SDG) is a group of social discovery companies that solve problems of loneliness and isolation through social entertainment platforms. The company has an international team of digital nomads and has been recognized as a Great Place to Work winner and a top company for remote jobs.

Europe

  • Develop and ship new features for Junie across CLI and model integrations.
  • Experiment with model setups, ensembling, and cost efficiency strategies.
  • Build and test autonomous agent behaviors for long-term project maintenance.

We create intelligent software development tools for developers and teams. Over 15 million users and 300,000 companies rely on our products, and our mission is to make development teams more productive and AI adoptable at scale.

$215,250–$285,982/yr
US

  • Build cutting-edge technology using deep learning and machine learning to personalize Pinterest.
  • Partner with teams to improve ML models for product surfaces like Homefeed and Search.
  • Use data-driven methods to improve content recommendation and ads delivery.

Pinterest is a platform where millions of people find creative ideas and plan for memories. The company is mission-driven, focusing on innovation and inclusion, with a large and diverse user base.

India

  • Lead the launch and growth of a new market for AI voice technology, owning customer acquisition and deployment.
  • Build and lead a high-performing regional team of forward-deployed engineers in a collaborative culture.
  • Engage with strategic customers to design custom AI integrations and ensure successful implementation.

The partner company is an AI technology firm specializing in voice and audio AI solutions. It fosters an innovative, AI-first culture with an emphasis on autonomy, rapid experimentation, and high-quality execution, though specific team size is undisclosed.

$216,125–$262,438/yr
US Unlimited PTO

  • Generative media synthesis: building the models behind features like Video Regenerate, lipsync, and video translation — photorealistic video and audio synthesis as production research, not demos.
  • Zero-shot voice and roomtone cloning: realistic cloning from only a few minutes of reference audio.
  • Multimodal understanding: vision-language systems that let Descript's agentic editing features reason over visual and audio content, plus the evals that balance quality against cost and latency.

Descript is building a simple, intuitive, fully-powered editing tool for video and audio — an editing tool built for the age of AI. They are a team of 150 with backing from top investors, and each new employee has a measurable influence on the company's direction.

Europe

  • Own the AI architecture across Flip Fusion, Ask AI agent gateway, and Flip Flows.
  • Lead and grow a team of three AI engineers, staying hands-on with the hardest problems.
  • Shape a young AI engineering discipline with enormous design space and no inherited playbook.

Flip is the leading AI-powered employee experience platform for frontline workers in retail, manufacturing, and logistics. The company is a young tech company with a relaxed working atmosphere and highly motivated people.

US

  • Design, train, and improve large-scale machine learning models for recommendation and personalization, leveraging modern deep learning architectures.
  • Own end-to-end delivery of major ML system components, from problem framing to production rollout, with cross-functional partners.
  • Optimize distributed training, model efficiency, and online inference performance while ensuring low-latency, high-throughput production systems.

Reddit is a community of communities built on shared interests, passion, and trust, hosting authentic conversations. With over 100,000 active communities and about 130 million daily active users, Reddit is one of the internet's largest sources of information.

Global 6w PTO 26w maternity 26w paternity

  • Design and write high-performing, scalable software for training models.
  • Develop new tools to support and accelerate research and LLM training.
  • Collaborate with engineering and scientific teams to create a strong post-training ecosystem.

Cohere is a security-first enterprise AI company building cutting-edge foundation models and end-to-end products to solve real-world business problems. They are a global team of researchers, engineers, and designers passionate about their craft, with offices in Toronto, London, New York, San Francisco, Montreal, Paris, Berlin, and Seoul.

$149,000–$219,000/yr
US Unlimited PTO

  • Build and maintain production-quality reference implementations and educational content for developers.
  • Represent the company at conferences, on livestreams, and within developer communities.
  • Work closely with product and engineering teams to identify friction and improve developer experience.

The company develops modern orchestration and AI technologies. It is a remote-first, high-performance environment with a focus on autonomy and developer community.

Brazil

  • Adapt, review, and refine scripts for AI-powered dubbing projects to ensure natural, accurate, and engaging localized dialogue.
  • Review AI-generated dubbing outputs, identifying linguistic, performance, and quality issues that require correction.
  • Collaborate with production and language teams to improve localization quality and achieve strong creative outcomes.

Our partner is a media and entertainment localization company that adapts film, television, and digital content for global audiences. They are building a global talent pool of freelancers and focus on integrating AI-powered dubbing technologies into their workflows.

Brazil

  • Lead the architectural design and development of scalable AI/ML pipelines for enterprise initiatives.
  • Provide technical leadership and mentorship to AI/ML engineers and data scientists.
  • Deploy and manage advanced models including LLMs and Generative AI in production environments.

They are an organization focused on delivering enterprise AI and Machine Learning solutions. They offer a fully remote, flexible work environment with a strong emphasis on professional growth and collaboration.

US Unlimited PTO

  • Own the technical vision and roadmap for ML systems powering forecasting, supply positioning, and fleet optimization.
  • Lead end-to-end execution of complex, cross-functional ML initiatives, from problem framing through production impact, ensuring alignment with business goals.
  • Mentor and develop engineers, providing technical guidance and raising the overall bar for ML and software engineering excellence.

Lime is the largest global shared micromobility business, on a mission to build a future where transportation is shared, affordable, and carbon-free. A Time Magazine 100 Most Influential Company, Lime has powered more than one billion rides in close to 30 countries across five continents, spurring a new generation of clean alternatives to car ownership.

US

  • Own the realtime voice stack and call-data platform end to end, including voice agents, streaming, and analytics.
  • Write clean scalable code, oversee voice pipeline reliability, and optimize latency and cost.
  • Mentor team members, collaborate across disciplines, and manage infrastructure as code.

WorkHero builds an AI-powered back office for skilled trades, starting with the HVAC industry. It combines expert office managers with automation and AI tooling to help small teams handle invoicing, permits, scheduling, and paperwork.

Germany 6w PTO

  • Deliver 2-3 weekly lessons on AI fundamentals, including Python, APIs, LLMs, and prompt engineering.
  • Provide technical mentoring to help students debug code and troubleshoot development environments.
  • Guide students through building AI applications such as chatbots and RAG systems from problem definition to deployment.

Neuefische GmbH is Germany's leading tech bootcamp provider, offering programs that drive digital skills transformation. With over 7,000 participants trained and 40% female participation, the company fosters diversity and inclusivity in tech.

Global

  • Listen to German audio recordings and transcribe them verbatim.
  • Follow transcription guidelines to ensure accuracy and consistency.
  • Deliver high-quality transcriptions to improve AI speech recognition systems.

RWS is a language services and AI training company. They offer flexible freelance opportunities for remote workers.

Europe

  • Design, develop, and evaluate machine learning models using real-world health data for personalized interventions.
  • Work with engineering teams to integrate models into production digital therapeutic solutions as Software as a Medical Device.
  • Ensure models meet regulatory, privacy, and explainability requirements while exploring generative AI applications.

They develop AI and machine learning solutions for digital therapies to improve patient outcomes. They are a technology-focused healthcare company with a remote-first culture.

EMEA 5w PTO

  • Define technical vision and roadmap for agent architecture (multi-agent workflows, task decomposition, state management, tool-use) and gain leadership buy-in.
  • Hire, mentor, and manage a small team of Agent Architects, setting technical standards and providing real-time feedback.
  • Act as final technical escalation for complex client deployments, leading discovery and presenting trade-offs to senior non-technical stakeholders.

Pencil uses AI to make ads, aiming to make marketing effective and effortless. Founded in 2018 by a team from Google, Facebook, and Uber, backed by Sequoia and Entrepreneur First, and acquired by The Brandtech Group in 2023, they focus on bringing GenAI to Fortune 500 brands.

UK 4w PTO

  • Design, build, and operate production-grade agentic systems for developers.
  • Develop core agent infrastructure including orchestration, tool execution, and evaluation.
  • Own projects end to end from opportunity identification to launch and iteration.

Our partner is a fast-growing Series C technology company that builds AI-powered developer tools. The organization is fully remote with an autonomous culture focused on engineering ownership and collaboration.

US Canada

  • Own the AI agents and automation system, including agentic front ends (chatbot, voicebot, computer-use) and backend workflow automation for document validation and transaction orchestration.
  • Evaluate emerging AI technology, make build vs. buy decisions, and ship new features to production.
  • Partner with OpenAI to deploy next-generation voice models and improve workflow automation.

Jerry.ai is building the first AI-powered advisor to manage all your physical assets, starting with car insurance and expanding into home, motorcycle, RV, and boat. The company is a profitable, Series C, YC-backed startup with 5M+ customers and $240M in funding, known for a culture of competitive but kind people who think and act like owners.