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Inflection AI

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  • Research Engineer, Voice

    Palo Alto, California, United States

    unspecified $225K-$325K

    Research Engineer, Voice Palo Alto, California, United States About Inflection AI Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. We're shaping the future of AI by combining emotional intelligence (EQ) and raw intelligence (IQ) to elevate people's potential. Inflection AI created Pi, the world's first emotionally intelligent AI, to help people work through decisions, emotions, and challenges. Pi is a personal AI agent powered by Inflection AI's foundation model, proving that AI can be personal, empathetic, and contextually aware. About the Role We're looking for a Member of Technical Staff (MTS), Research Engineer focused on voice and audio to help advance the spoken intelligence behind Pi. In this role, you'll work at the intersection of research and production-developing, training, and shipping neural models across the full spectrum of voice: speech synthesis, recognition, audio generation, and real-time spoken dialogue. You'll collaborate closely with ML engineers, product teams, and infrastructure to turn cutting-edge ideas in areas like neural audio codecs, diffusion-based TTS, and multimodal foundation models into the natural, expressive voice experiences that millions of Pi users interact with every day. What You'll Do - Research, develop, and optimize neural models for voice and audio-including text-to-speech, automatic speech recognition, audio generation, and spoken dialogue systems. - Build and maintain production-grade training and inference pipelines for voice models, with close attention to latency, naturalness, and scalability. - Run experiments end-to-end: data curation, model architecture design, training, evaluation, and ablation studies. - Collaborate with ML engineers, product teams,

  • Staff Engineer, Agentic

    Palo Alto, California, United States

    unspecified $350K-$500K

    Staff Engineer, Agentic Palo Alto, California, United States About Inflection AI Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. We're shaping the future of AI by combining emotional intelligence (EQ) and raw intelligence (IQ) to elevate people's potential. Inflection AI created Pi, the world's first emotionally intelligent AI, to help people work through decisions, emotions, and challenges. Pi is a personal AI agent powered by Inflection AI's foundation model, proving that AI can be personal, empathetic, and contextually aware. About the Role As a Staff Engineer, AGentic at Inflection, you will own the platforms, systems, and services that bring our conversational AI to life at scale. You'll collaborate across research, product, and infrastructure teams to enable rapid iteration, high reliability, and secure delivery of novel AI features to millions of users. Your work will directly impact both the pace of product development and the stability of our production systems. What you'll do - Design and build backend systems that power agentic workflows in production: orchestration, memory, retrieval, and tool integrations. - Operate high-availability inference and conversation pipelines, optimizing for latency, cost, and quality. - Build internal platform pieces service templates, CI/CD, observability, evaluation harnesses, and rollout tooling that compound engineering velocity. - Partner with applied researchers and frontend engineers to design and iterate on user-facing features - Drive features from prototype to production with measurable user impact, ensuring reliability and performance at scale Must-haves - 10-15 years of backend engineering experience shipping production systems

  • Senior Data Scientist (Growth)

    Palo Alto, California, United States

    unspecified $235K-$300K

    Senior Data Scientist (Growth) Palo Alto, California, United States About Inflection AI Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. We're shaping the future of AI by combining emotional intelligence (EQ) and raw intelligence (IQ) to elevate people's potential. Inflection AI created Pi, the world's first emotionally intelligent AI, to help people work through decisions, emotions, and challenges. Pi is a personal AI agent powered by Inflection AI's foundation model, proving that AI can be personal, empathetic, and contextually aware. About the Role As a Senior Data Scientist (Growth) on our Product team, you will be the primary architect of our understanding of user behavior. Reporting directly to the Head of Data Analytics, you will serve as the dedicated data scientist partner for our Product and Growth teams. Your mission is to go beyond descriptive analytics - building predictive models and behavioral frameworks that allow us to anticipate user needs, identify friction before it becomes churn, and surface the signals that drive long-term retention. This is a high-leverage, deeply technical role. You will own the full analytical lifecycle: from schema design and data quality through feature engineering, modeling, and insight delivery. You will be the bridge between our Data Engineering team and our Product organization, ensuring the infrastructure we build supports ambitious, model-driven growth decisions. You will also play a key role in understanding how different user audiences discover, adopt, and derive value from our product - connecting acquisition signals to downstream behavioral outcomes

  • Head of IT & Internal Tools

    Palo Alto, California, United States

    unspecified Salary not disclosed

    Head of IT & Internal Tools Palo Alto, California, United States About Inflection AI Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. We're shaping the future of AI by combining emotional intelligence (EQ) and raw intelligence (IQ) to elevate people's potential. Inflection AI created Pi, the world's first emotionally intelligent AI, to help people work through decisions, emotions, and challenges. Pi is a personal AI agent powered by Inflection AI's foundation model, proving that AI can be personal, empathetic, and contextually aware. About the Role As the Head of IT & Internal Tools, you will design and operate the secure, high-integrity infrastructure that will power the Inflection workplace through our next phase of global growth and scale. This is a deeply technical leadership role for a builder who leads through execution-engineering robust systems, automating complex workflows, and serving as "Customer Zero" for our frontier AI technology. Reporting to the COO, you will turn internal infrastructure into a strategic advantage that safeguards our organizational integrity. By creating an intelligent, frictionless employee experience, you will amplify productivity and set the gold standard for operational excellence in an AI-first world. What You'll Do - Own and evolve a secure-by-design, end-to-end IT infrastructure for a dynamic, distributed workforce, spanning zero-trust identity management and high-performance productivity systems. - Develop an internal tools platform that leverages Inflection's products and agentic technology to automate workflows and replace third-party SaaS offerings to boost productivity, eliminate manual friction, and minimize external dependencies. -

  • Member of Technical Staff – Model Training

    Palo Alto, CA

    unspecified $175K-$350K

    Member of Technical Staff – Model Training Palo Alto, CA About Inflection AI Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. We're shaping the future of AI by combining emotional intelligence (EQ) and raw intelligence (IQ) to elevate people's potential. Inflection AI created Pi, the world's first emotionally intelligent AI, to help people work through decisions, emotions, and challenges. Pi is a personal AI agent powered by Inflection AI's foundation model, proving that AI can be personal, empathetic, and contextually aware. About the Role As a Model Training engineer, you will design, build, and scale the post-training pipelines that turn a general LLM into a brand-fluent, production-ready assistant. Your innovations in fine-tuning and preference optimization (RLHF, DPO, GRPO, RLAIF) will directly improve reliability, alignment, and cost. This is a good role for you if you: - Have hands-on experience training and fine-tuning large transformer models on multi-GPU / multi-node clusters. - Are fluent in PyTorch and its ecosystem tools (Torchtune, FSDP, DeepSpeed) and enjoy digging into distributed-training internals, mixed precision, and memory-efficiency tricks. - Have shipped or published work in RLHF, DPO, GRPO, or RLAIF and understand their practical trade-offs. - Care deeply about training tools, pipelines, and reproducibility-you automate the boring parts so you can iterate on the fun parts. - Balance research curiosity with product pragmatism-you know when to run an ablation and when to ship. - Communicate crisply with both technical and non-technical teammates. - Have a bachelor's degree or equivalent