Rime builds voice AI for enterprises running customer experiences at scale. Our text-to-speech models are purpose-built for high-volume conversational deployments, engineered for the pronunciation accuracy, latency, and deployment flexibility that production environments actually demand.
We started from a different premise than the rest of the field: voice AI isn't bottlenecked by model architecture. It's bottlenecked by data. So before we trained a single model, we built our own corpus: full-duplex, studio-quality conversational speech, recorded and annotated by PhD linguists. That's our moat. It's also why enterprises pick Rime when pilots need to convert into production.
We're backed by top-tier investors including Unusual Ventures, and we've built a team at the intersection of product, research, and craft. Building voice models is an art. We intend to master it.
We're hiring a Machine Learning Scientist to push the frontier of speech synthesis and speech understanding at Rime.
What You'll Own
Design, train, and evaluate speech synthesis models, autoregressive and non-autoregressive.
Drive research on full-duplex and half-duplex multi-modal architectures, including unified S2S systems.
Choose and iterate on speech representations: neural codecs, semantic tokens, mel features, continuous latents.
Build rigorous evaluation, objective and perceptual. Hold the bar on quality and prosodic control.
Collaborate with our linguists on TTS frontend behavior so modeling and frontend choices reinforce each other.
Deep familiarity with the speech synthesis literature, contemporary and historical — Tacotron, FastSpeech, VITS, VALL-E, the codec-LM lineage. Opinions on what worked and why.
Hands-on training with neural codecs (EnCodec, DAC, Mimi, etc.) and multiple representation choices.
Experience with full- or half-duplex multi-modal modeling (Moshi, LLaMA-Omni, streaming S2S).
Strong attention to detail on data quality. You notice when an annotation pipeline is silently degrading or when an eval set has leakage.
Willing to roll up your sleeves on unglamorous data and training work — paired with the agency to build pipelines so the team isn't stuck doing it by hand.
Working knowledge of TTS frontend (G2P, normalization, prosody) and experience working with linguists.
Strong PyTorch fundamentals. Comfortable with training loops, distributed training, model internals.
PhD or equivalent research experience in speech, audio, ML, or computational linguistics or a track record that makes the credential irrelevant.
Nice to have
Multilingual TTS experience.
Background in prosody or paralinguistics.
Published work in speech, audio, or core ML venues.
Experience taking research models to production: quantization, distillation, streaming inference.
Category-defining voice AI infrastructure, not incremental research deltas.
Direct collaboration with founders, including a CEO with a Stanford computational linguistics PhD.
Real impact on company trajectory.
Meaningful equity upside.
High ownership, high standards, low bureaucracy.
What We Offer
Competitive base + meaningful early-stage equity
Remote-friendly
Visa sponsorship available
Access to a proprietary, full-duplex, studio-quality conversational speech corpus
Compute and tooling to do the work
Direct influence on the future of voice AI
At Rime, we...
Are outliers
Cut through the hype to focus on the craft
Move fast with agency and freedom
Maintain a growth mindset, finding joy in the struggle
Do the right things, knowing that it'll lead to making money
If that sounds like you too, you'll be a great fit for Rime!
Location: San Francisco
Reports To: VP of Revenue
OTE: $250,000 - $300,000
Rime builds voice AI for enterprises running customer experiences at scale. Our text-to-speech models are purpose-built for high-volume conversational deployments, engineered for the pronunciation accuracy, latency, and deployment flexibility that production environments actually demand.
We started from a different premise than the rest of the field: voice AI isn't bottlenecked by model architecture. It's bottlenecked by data. So before we trained a single model, we built our own corpus: full-duplex, studio-quality conversational speech, recorded and annotated by PhD linguists. That's our moat. It's also why enterprises pick Rime when pilots need to convert into production.
We're backed by top-tier investors including Unusual Ventures, and we've built a team at the intersection of product, research, and craft. Building voice models is an art. We intend to master it.
Our revenue team has a unique mission to help customers understand the deep impact that highly capable AI voice models can bring to their business and users. This Founding Account Executive role is a mixture of technical understanding, vision, partnership, and value-driven strategy.
You’ll be a key driver of opportunities through the entire sales cycle, from prospecting and deal execution to long-term account growth. You’ll work with researchers, engineers, and solution strategists to help customers evolve their industry with AI.
This role is ideal for someone who thrives in early-stage environments, loves building from zero, and is excited to help define how Rime’s voice AI technology is deployed across industries.
Own the full sales cycle — from cold outbound to signed contract. You find your way to the right buyers, earn their trust, and close.
Generate your own pipeline. You're a hunter who builds from zero — outbound, events, partner channels, whatever works.
Become a product expert. Run technical discovery, demo credibly to engineering and product teams, and translate capability into a clear business case.
Serve as a trusted advisor. Deeply understand your customers' priorities and help them deploy voice AI in ways that actually move their business forward.
Inform the roadmap. Synthesize market signals, customer feedback, and competitive intel — what you learn in the field shapes what we build.
Drive expansion. The initial contract is the floor. You build relationships that grow accounts over time.
A genuine hunter. You create your own pipeline, move deals forward with urgency, and don't wait to be told what to do next.
Technically fluent. You understand APIs, AI pipelines, and developer workflows — not as a talking point, but because you're genuinely curious.
Customer-obsessed. You care about outcomes, not just signatures, and you build relationships that last beyond the close.
Energized by hard problems. Bespoke deals, new verticals, and undefined playbooks don't intimidate you — they motivate you.
A sharp communicator. You write clearly, present with confidence, and adapt from a platform engineer to a C-suite exec.
Rime is an AI lab — you're not just selling software, you're working alongside the researchers and engineers building frontier voice models.
Voice AI is at an inflection point. The companies that win now will define the category — and you'll be one of the first commercial leaders helping shape that.
Direct exposure to how frontier AI gets built and deployed at scale, across some of the most demanding industries in the world.
Competitive compensation with meaningful equity and real performance upside — we want to build a small, high-performing team that has real ownership.
Are outliers
Cut through the hype to focus on the craft
Move fast with agency and freedom
Maintain a growth mindset, finding joy in the struggle
Do the right things, knowing that it'll lead to making money
If that sounds like you too, you'll be a great fit for Rime!
SF Bay Area (hybrid)
Salary range: $145,000-$210,000
Reports to: VP of Marketing
The role
Rime builds conversational voice models for customer-obsessed brands around the world. We’re a company with a foundation of expertise created out of a passion for speech and how AI can improve the human experience .
We’re building a marketing team that can tell our unique story, in a compelling way. Your job is to make sure the right buyers see that story, at the right moment, in the right place, again and again, until Rime is the obvious choice.
The perfect candidate for this role has deep knowledge of how to find and win our technical and business buyer (product, engineering leaders) with a thirst for experimentation. You know how to find out where our buyers hang out, what they read, what they trust and how they respond to different mediums. And you know how to prove what works and where to invest. You need to be an expert in B2B, complete buying committee demand generation.
What you'll do
Build and run Rime's demand engine, from the first touch to qualified pipeline, working backward from our revenue targets.
Know what resonates with our buyers, VPs of Product and technical builders at fast-growing customer obsessed brands, and the developers who influence them. Choose the format, length, tone, and channel for each, and orchestrate the sequence of touches that moves them.
Win in AI answer engines, and with all search that matters. Our buyers ask LLMs before they ask Google, and we must show up in those answers in a very compelling way.
Drive the strategy and partner with founders, product leaders and PMMs for exactly what we need.
Run ABM with input from our sales team, collaborating on creative campaigns to differentiate the Rime brand and to build the Rime pipeline of opportunities.
Shape our events strategy and help our field marketing lead execute brilliantly, without owning events yourself.
Who you are
Your experience matters. Not the years, but the impact. You've built a proven demand function from the ground up at a high-growth B2B company supported by a strong pipeline you created.
You’re dynamic. You treat channels like systems: you test, measure, and tune them relentlessly.
You're scrappy. You can think of and execute on ways to get more than its fair share of attention for every dollar spent.
You’re inspirational. You can walk into a room and make people believe in the plan, then show them it's working.
You’re curious. You don’t settle for the status quo and want to push the boundaries.
You’re a team player. You know that you can only succeed as a team, and you want to collaborate in person at the Rime office a couple of days a week.
You want to work closely with the rest of the team in Rime’s San Francisco office.