A

Alljoined

Decoding neural signals for brain-computer interfaces

Machine Learning Researcher

Full-Time
$140k - $250k/yr+ Housing support
Mid, Senior
Bachelor's, Master's, PhD
San Francisco, CA, USA
In Person
AI & Machine LearningAI Research
H1B Sponsorship Available

About the job

Requirements
  • A bachelor's or master's degree in computer science or a related field, such as artificial intelligence, computational neuroscience, mathematics, or biomedical engineering, and five to seven years of experience in industrial machine learning research; alternatively, a PhD in computer science or a related field, such as artificial intelligence, computational neuroscience, or biomedical engineering, and at least three years of experience in machine learning research or applied machine learning engineering.
  • A track record of high-quality research demonstrated through publications at leading machine learning conferences or in respected journals, including NeurIPS, ICML, ICLR, or CVPR.
  • Strong proficiency in Python and PyTorch, along with familiarity with modern machine learning tooling and distributed training.
  • Experience contributing to a production-quality codebase with modern code-review standards.
  • Experience in one or more relevant areas: multimodal representation learning, generative modeling, temporal sequence modeling, or neural data analysis.
Responsibilities
  • Develop, train, and refine state-of-the-art deep learning models for neural decoding, drawing on recent advances in architectures such as transformers and diffusion models.
  • Explore novel methods for modeling high-frequency, time-series EEG data alongside several adjacent data modalities.
  • Translate research insights into production-grade code that integrates seamlessly with the in-house BCI stack.
  • Collaborate with neuroscientists and machine learning engineers to build scalable, end-to-end neural-decoding systems.
  • Publish findings at leading machine learning and AI conferences, including NeurIPS, ICML, ICLR, and CVPR.
  • Contribute to open-source communities where appropriate.
Desired Qualifications
  • Candidates with a Ph.D. and/or experience working in a high-profile machine learning research lab are strongly preferred.
  • Experience with CLIP-style contrastive objectives and masked autoencoding.
  • Experience with diffusion models, transformer decoders, and latent GANs.
  • Experience with state-space models, STFT-aware transformers, and RWKV.
  • Experience building models that predict behavioral or cognitive attributes from non-invasively recorded neural data.

About the company

Alljoined builds and provides a complete Brain-Computer Interface (BCI) stack that decodes neural signals into meaningful representations like images, text, sound, and video using deep learning. Its products operate by collecting neural data through a BCI, processing and decoding it with in-house models, and producing user-ready outputs across multiple modalities. The company differentiates itself by offering an affordable, high-quality interface and an end-to-end stack, backed by researchers from top institutions, and by licensing the technology to device manufacturers and application developers while pursuing clinical partnerships. Its goal is to democratize neural decoding and enable interaction with devices at the speed of thought for healthcare diagnostics, creative industries, and other human–technology applications.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

San Francisco, California

Founded

2023

Get referred to Alljoined

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Alljoined released NOVA and ENIGMA in 2026, showing rapid product cadence.
  • The company claims state-of-the-art image reconstruction and minute-level adaptation for new users.
  • Hiring is active in August 2026, signaling ongoing buildout despite tiny headcount.

What critics are saying

  • Alljoined has only 20 participants in Alljoined-1.6M, limiting generalization by 2027.
  • Consumer EEG needs over 20x more data than lab-grade systems for equal accuracy.
  • Open, non-invasive decoding invites fast copying from Synchron, university labs, and open-source groups.

What makes Alljoined unique

  • Alljoined builds non-invasive EEG decoding, avoiding implant risk and clinical hardware dependence.
  • Its consumer-grade Alljoined-1.6M dataset and ENIGMA model create a rare full-stack moat.
  • Backers include ARTIS, Conviction, Compound, Khosla, and individual executives like Jeff Dean.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

Vision Insurance

Dental Insurance

Unlimited Paid Time Off

Relocation Assistance

401(k) Company Match

Growth & Insights

Headcount

6 month growth

0%

1 year growth

-5%

2 year growth

-5%