---
title: 'Executive Assistant at Alljoined'
canonical: 'https://feeny.ai/job/executive-assistant-alljoined-san-francisco-51epbag83025'
type: 'job'
last_seen: '2026-09-07'
---

# Executive Assistant at Alljoined

- **Company:** Alljoined
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-07-29
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/alljoined/12594e5d-7933-4496-a453-444e6ca73de3

## Job description

## ABOUT ALLJOINED

Alljoined is creating a future where humans are fully understood and augmented by technology. Our work solves the communication bottleneck between humans and computers by decoding thoughts from the brain, entirely non-invasively. We apply deep learning research to large-scale EEG datasets to decode multimedia input, eventually moving to internal thought. We are state-of-the-art in our capabilities and fully vertically integrated. Our goal is to develop a general consumer interface that completely transforms how we live our lives.

We are actively growing our world-class team of researchers and operators to build the next interface to improve individual lives and the well-being of society as a whole.

## ABOUT THE ROLE

As an Executive Assistant & Office Manager, you will support our CEO and help keep the company operating smoothly as we grow. You will own calendar and inbox workflows, coordinate meetings and travel, prepare briefings, protect focus time, and ensure important follow-ups do not fall through the cracks. You will also manage day-to-day office logistics, team events, onboarding and offboarding, recruiting coordination, and our upcoming office move.

This is a unique opportunity to work closely with a technical founder at an early-stage deep-tech company and gain a front-row seat to how a frontier AI and neurotechnology company is built. You will collaborate with the operations lead and the broader team to anticipate needs, reduce friction, and develop lightweight systems that make the company more effective. This is an in-office role based in San Francisco, five days per week.

## ABOUT YOU

- 1-3 or more years of relevant experience in executive assistance, office management, operations, hospitality, customer service, recruiting coordination, or startup support.
- High ownership, strong follow-through, and the ability to anticipate needs without waiting to be told every next step.
- Excellent judgment in calendar management, inbox management, written communication, and handling confidential information.
- Strong attention to detail without losing sight of broader company priorities.
- Comfort working in a fast-paced startup environment where priorities may change quickly.
- A proactive, resourceful, low-ego approach and a strong service orientation.
- The ability to turn broad objectives-such as protecting the CEO’s strategy time-into practical systems and better working rhythms.
- Excellent organizational and logistical skills across meetings, travel, team events, office operations, onboarding, and recruiting coordination.
- Excitement about AI, neuroscience, brain-computer interfaces, or other frontier technologies.
- Willingness to work from our San Francisco office five days per week.

Experience supporting a founder, CEO, investor, or technical executive is a plus, as is experience at an early-stage startup. Familiarity with tools such as Google Workspace, Slack, Ashby, Notion, and Linear is also helpful.

## BENEFITS

- Competitive equity compensation at a seed-stage startup
- Options for housing support
- Visa sponsorship
- Health insurance

## About Alljoined

## Company Overview
- **One-liner**: Alljoined develops neural decoding technology to interpret thoughts from brain signals non-invasively, aiming to bridge human cognition and technology by applying deep learning to EEG and fMRI data.
- **Entity Type**: Private (Seed round, January 2025)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2023
- **Founders**: Not publicly disclosed (CEO is Jonathan Xu)

## Core Business
- **Primary industries**: Research Services, Artificial Intelligence, Brain-Computer Interfaces (BCI)
- **Target customers**: B2B (research institutions, healthcare providers), B2C (future consumer BCI applications); currently research‑focused
- **Mission statement**: “Create a future where people can better understand themselves and connect with technology” – developing neural decoding to augment human capability and dignity

## Products & Services
- **ENIGMA Model**: A multi‑subject EEG‑to‑image decoding model that learns a shared visual language across brains, enabling adaptation to new users in minutes. Achieves state‑of‑the‑art accuracy (demonstrated in peer‑reviewed work).
- **MindEye2**: Multi‑subject fMRI‑to‑image architecture that trains 40× faster than prior models while matching performance (ICML 2025).
- **Public EEG Dataset**: Largest public dataset for EEG‑image decoding – 6+ hours of recordings per participant across 20 subjects using consumer‑grade hardware.
- **Proprietary Research Models**: Decoding of semantic content, emotion, inner speech, and intentional planning from brain signals.

All offerings are research‑stage technology, not yet commercialized (pre‑revenue).

## Market Standing
- **Valuation / Total Funding**: Not disclosed (Seed round in Jan 2025, 2 investors)
- **Key Metric**: Total funding amount not publicly available; headcount 12 employees (LinkedIn) with conflicting report of 9 (BuiltIn)
- **Notable Investors & Advisors**:
  - Individual investors include **Jeff Dean** (Chief Scientist, Google), **Guillermo Rauch** (CEO, Vercel), **Anastasis Germanidis** (Co‑founder, RunwayML), **Oliver Cameron** (Co‑founder, Odyssey), **Vas Bailey**.
  - Scientific Advisory Board: **Dr. Anil Seth** (Professor, University of Sussex), **Dr. Rufin VanRullen** (CNRS), **Dr. Arnaud Delorme** (Chief Architect of EEGLAB), **Dr. Thomas Naselaris** (University of Minnesota), **Dr. Tanishq Mathew Abraham** (CEO, MedARC).
- **Growth Signals**:
  - Headcount grew **+142.9% YoY** (LinkedIn); currently 7 open positions across research and engineering.
  - Published papers at **ICML 2025** (MindEye2) and **CVPR** (mental imagery reconstruction from fMRI, highlight paper).
  - Released the largest public EEG‑image decoding dataset and demonstrated log‑linear neural scaling laws.

## Competitive Advantages
- **Non‑invasive decoding**: Uses consumer‑grade EEG, making BCI practical for widespread use.
- **Multi‑subject learning**: Models (ENIGMA, MindEye2) generalize across individuals, reducing calibration time from hours to minutes.
- **Cutting‑edge research**: Peer‑reviewed publications at top ML/vision conferences; team includes world‑class neuroscientists and ML researchers.
- **Ethical positioning**: Focus on augmenting human capability and dignity, not replacement.

## Strategic Focus
- Decoding increasingly complex cognitive processes (emotion, inner speech, planning, abstract reasoning).
- Scaling neural decoding through larger datasets and more powerful models.
- Building a practical, non‑invasive interface for mental health, self‑understanding, and human‑computer interaction.

## Why Work Here
- **In‑office culture** in San Francisco, CA (all roles require on‑site presence).
- **Early‑stage environment** with ability to shape foundational technology; currently 12 employees.
- **Research‑heavy team** – roles include Machine Learning Researcher, Computational Neuroscientist, Data Infrastructure Engineer, Software Engineer.
- **Mission‑driven** – “improving human capability and dignity” with a focus on ethical augmentative AI.
- **World‑class advisors** from top institutions (Google, CNRS, Princeton, etc.) and a highly collaborative team (former employees from Tesla, Snowflake, Microsoft, etc.).

## Sources
1. [alljoined.com](https://www.alljoined.com/)
2. [alljoined.com/about](https://www.alljoined.com/about)
3. [linkedin.com/company/alljoined](https://www.linkedin.com/company/alljoined)
4. [builtin.com/company/alljoined-inc](https://builtin.com/company/alljoined-inc)
5. [jobs.ashbyhq.com/alljoined](https://jobs.ashbyhq.com/alljoined)

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