Jobs in the United States

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Added 6 hours ago
Senior Solutions Architect Expert
CADDi
Chicago, IL
Cloud-native delivery: containers (Docker), CI/CD, and deployments to AWS/GCP/Azure; infra-as-code mindset and basic networking/security.
Added 2 days ago
Senior Capacity Delivery Reliability Planner , AWS Infra Supply Chain
Amazon
Seattle, WA
Are you ready to architect the digital backbone of tomorrow? We're seeking a Senior Supply Capacity Delivery Reliability Planner to lead end-to-end capacity and planning orchestration…
Added 2 days ago
Staff, Platform Security Architect (Cloud, Infra and Platforms Security Architecture)
Coupang
United States
Added 2 days ago
Senior AI/ML Engineer - LLM & Agent Stack (Customer Facing)
TrueFoundry
NY · San Mateo, CA
Architect and implement scalable agent orchestration patterns (graph-based executors, state management, multi-agent coordination) for production workloads.
Added 3 days ago
Sr Data Scientist
UST Global Inc
Bellevue, WA
Architect Agentic Systems: Engineer sophisticated multi-agent orchestrations, autonomous reasoning loops, and tool-calling workflows that integrate advanced RAG for complex, multi-step…
Added 3 days ago
GenAI Infra Specialist SA, AWS WWSO Startup
Amazon
New York, NY
Do you want to help define the future of technology on AWS Generative AI as part of the Specialist Solutions Architect team in the Go-To-Market (GTM) Startup team? Are you passionate about…
Added 3 days ago
S
Senior Platform / Infra Engineer
Skylink
New York City, NY
- $150,000 to $190,000 USD / year
Is just as excited to code and build as they are to architect and design software
Added 3 days ago
C
Founding Engineer, Backend + Infra
Clarity
San Francisco, CA
- $150,000 to $200,000 USD / year
Architect and own our data processing pipeline end-to-end
Added 3 days ago
Full Stack SWE
Discovery
Remote, United States
As an early engineer, you’ll help architect and build the core systems powering our metadata and royalties platform. You’ll work across the stack - building elegant UIs and robust APIs,…
Added 3 days ago
Founding Engineer (Applied AI & ML Ops)
Solstice Health
New York City, NY
Scope, architect, and build SOTA agents and pipelines while supporting customers directly.
Added 3 days ago
GL
Prompt Engineer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
You will be the language architect of Vibecoderz. The TutorAgent and its family of sub-agents only think as clearly as the prompts that guide them - and you will design those “thought…
Added 3 days ago
GL
Product Manager (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $40,000 USD / year
You’ll be the voice of the user and the architect of Vibecoderz’ product vision. As the first Product Manager, you will define the “what” and “why” across our platform: from the TutorAgent…
Added 3 days ago
GL
Head of Product Design (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
Architect a block-based design system that scales across Byte Courses, TutorAgent, and Vibe Browser.
Added 3 days ago
GL
Head of Data Analytics
Gradientflo Labs
San Francisco, CA
- $12,000 to $24,000 USD / year
Architect and optimize the Developer Graph in Neo4j.
Added 3 days ago
GL
DevOps Engineer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
As the founding DevOps engineer, you will design our CI/CD pipelines, observability stack, infra-as-code, and security posture from day zero. You’ll ensure that when a developer ships code,…
Added 3 days ago
GL
Chief Technology Officer (Tech - Founding Pillar)
Gradientflo Labs
San Francisco, CA
- $40,000 to $60,000 USD / year
You will be the architect, strategist, and cultural driver of Vibecoderz’ engineering DNA. This isn’t a CTO role that floats above the codebase - this is a hands-on, deeply technical…
Added 3 days ago
GL
AI Engineer (Founding Engineer – AI)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
You will be the intelligence architect of Vibecoderz. As the AI Engineer, you’ll design, implement, and optimize the multi-agent orchestration system that powers the TutorAgent,…
Added 3 days ago
Solution Architect Internship
Metasys
Remote, United States
The Solution Architect is a strategic leadership role responsible for defining the complete, end-to-end technical architecture for our integrated supply chain e-commerce platform. You will…
Added 3 days ago
Performance Tester Internship
Metasys
Remote, United States
Cloud/Infra: Familiarity with cloud-based load testing services and containerized environments (Docker).
Added 4 days ago
D
Full-Stack Engineer
Darkroom
New York, NY · New Jersey, NJ
- $120,000 to $160,000 USD / year
- Cloud & Infra: Google Cloud Platform, Airflow, Terraform, Docker, Kubernetes
Added 4 days ago
Infra and DevOps Cloud Architect - Delivery Architect, Infrastructure Engineering Technical Solutions
Deloitte US
Atlanta, GA · Charlotte, NC · Dallas, TX · Gilbert, AZ · Houston, TX · Lake Mary, FL · Mechanicsburg, PA · Philadelphia, PA
As a Infra and DevOps Cloud Architect on the team, you will be responsible for:
Added 4 days ago
Staff Software Engineer, Ads Agent Infra
Pinterest
Remote, United States
Architect, build and maintain durable execution platforms supporting crash-recoverable, stateful AI agent workflows.
Added 5 days ago
Senior Verification Engineer - CPU
NVIDIA USA
CA · TX
Interactions with architect and design engineers to define detailed scope of micro architectural features
Added 5 days ago
Senior Staff/Principal Engineer, Foundation Model Compute Infra
Apple
Cupertino, CA · Santa Clara, CA · Seattle, WA
As a Senior Staff/Principal Engineer on the Foundation Model Compute Infrastructure team, you will architect, build, and operate large-scale infrastructure powering foundation model…
Added 5 days ago
Startup Solutions Architect, Early Stage Startups
Amazon
San Francisco, CA
…become the closest thing they have to a fractional CTO or chief architect. That's what makes this an adventure rather than a support role: you and the founders are figuring it out together,…

Cantina

Machine Learning Engineer, Voice Conversion

Remote, United States

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Job details

Posting language: English
Posted: Aug 4, 2026

Original job description

ABOUT CANTINA:

Cantina is a new social platform founded by Sean Parker with the most advanced AI character creator. Our bots are lifelike, social creatures that can interact wherever people are online - across voice, video, and text. Create yourself, imagine someone new, or choose from thousands of characters to share infinitely scalable, personalized content and seamless group chat.

If you’re excited about how AI can shape creativity and social interaction, come help us build what’s next.

ABOUT THE ROLE:

We’re looking for a Research / ML Engineer to join our Speech Team to build state-of-the-art speech systems end-to-end - from data specs through production inference. You’ll drive the model ↔ data ↔ eval flywheel for VC and adjacent tasks (controllable TTS, voice design and more), partnering closely with research, data, and infra to ship fast, reliable, and cost-aware models. In this role, you will work at the intersection of cutting-edge research and practical engineering, contributing to the development of safe, steerable, and trustworthy AI systems.

You will thrive in this role if you:

See research and engineering as two sides of the same coin and enjoy owning work end-to-end.
Are results-oriented, flexible, and willing to pick up whatever moves the needle.
Like collaborating closely with infra, data, and product to ship measurable improvements.
Enjoy designing experiments, listening tests, and metrics that correlate with user-perceived quality.
Eager to learn every-day, find and solve unique large-scale problems.

WHAT YOU’LL DO:

Model Building: Architect, implement, pre-train, fine-tune, and post-train/alignment (e.g., GRPO/DPO) for large-scale speech models.
Experimental Design: Design, run, and analyze scientific experiments to advance our understanding of the models.
Tool Development: Develop and improve dev tooling to enhance team productivity.
Full-Stack Contribution: Contribute to the entire stack, from low-level optimizations to high-level model design.
Data Ownership: Define data requirements and collaborate on acquisition, curation, augmentation, labeling quality, and synthetic data strategies.
Rigorous Evaluation: Design automated objective/subjective evaluations - listening tests, SV/WER/ASR-based metrics, robustness & bias checks, and red-team studies.
Pipeline Delivery: Harden the training → evaluation → inference pipeline; profile latency, memory, and cost; and meet production SLAs with robust monitoring and rollback.
Safety & Responsibility: Contribute to safety/consent guardrails and to misuse/abuse mitigation for responsible speech technology.

WHAT YOU’LL BRING:

Exceptional research/development experience with large-scale audio models (>8B parameters, >500k hours of data).
Deep hands-on experience with diffusion and/or flow-matching transformers, including practical knowledge of samplers, schedules, conditioning mechanisms, and distillation.
Deep hands-on experience training audio VAEs, neural audio codecs, and vocoders latent/tokenizer design, reconstruction and perceptual objectives, adversarial training.
Strong experience with multi-node, multi-GPU distributed training (FSDP/DeepSpeed or equivalent).
Strong software engineering skills with a proven track record of building complex systems.
Strong with PyTorch and performance work (profiling, CUDA/Triton/C++ as needed) and writing reliable production-quality code.
Shipped large-scale speech/audio or multimodal generative models to production.
Background in working with large-scale ML data, and the ability to iterate on data and triangulate quality using both subjective and objective signals.
Experience with voice cloning, speech control/steerability, or expressive speech generation.
Notable publications and/or open-source contributions in speech/audio/ML.

COMPENSATION:

When determining compensation, a number of factors will be considered, including skills, experience, job scope, location, and competitive compensation market data.

BENEFITS FOR U.S.-BASED ROLES:

Competitive salary and generous company equity
Medical, dental, and vision insurance – 99.99% of premiums covered by Cantina
42 days of paid time off, including:
15 PTO days
10 sick days
15 company holidays
2 floating holidays
Generous parental leave & fertility support
401(k) retirement savings plan
Lifestyle spending account – $500/month to use however you’d like
Complimentary lunch and snacks for in-office employees
One Medical membership, and more!

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