Alljoined
AI & Machine LearningDirect Ashby career site

Software Engineer

Pay
$140,000 – $200,000 per year
Location
San Francisco, CA · On-site
Job type
Full-time
Level
Mid-level
Experience
5+ years
Listed
30 days ago

Skills & highlights for this role

  • Python
  • data pipelines
  • systems architecture
  • cloud infrastructure

Also useful

  • Cython
  • profiling tools
  • EEG data processing

Stated benefits & perks

  • Health
  • Dental
  • Vision
  • Unlimited pto
  • 401k match

About the Role

As a Software Engineer, you will build the infrastructure that allows us to do high quality and fast research. You'll be owning and developing pipelines that process massive EEG datasets and writing the infrastructure that powers our physical experiments and data analysis. You will be powering work allowing for neural decoding technology while working alongside world-class researchers pushing the boundaries of what's possible in brain-computer interfaces.

You Might Be a Good Fit If You

  • Have 5+ years of production software engineering experience with deep expertise in Python and systems-level architecture.
  • Have built and maintained high-performance data pipelines for processing and storing massive datasets.
  • Are comfortable building the infrastructure and front-end tools required to visualize experimental stimuli in real-time.
  • Have a background in managing entire software stacks, cloud infrastructure, and dependency management.
  • Are capable of working across the full stack to debug low-level system performance issues or architect new foundational services.
  • Enjoy owning the entire technical lifecycle of a project, from initial design to production deployment and maintenance.

Strong Candidates May Have

  • Experience developing internal libraries, SDKs, or tooling that powers machine learning and computational neuroscience workflows.
  • Built core Python infrastructure like interpreters, package ecosystems, typing tools, or maintained widely-used open-source Python developer tools with significant adoption
  • Expertise in Python performance optimization, including experience with Cython, profiling tools, or optimizing Python runtimes

Compensation Range

  • $140,000 - $200,000/year
  • Competitive equity compensation at a seed stage startup

While this represents our expected range based on market data, final compensation will be determined based on your specific skills and experience and may be outside this range.

Benefits

  • Comprehensive health, vision, dental insurance
  • Options for housing support
  • Visa sponsorship
  • Unlimited PTO
  • 3% 401k matching

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 capabilities and are fully vertically integrated. Our goal is to develop a general consumer interface to completely transform how we can live our lives.

We are actively growing our founding engineering team to build the underlying infrastructure that makes this ambitious future a reality.

Read the original posting

From Alljoined's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

What is the salary for the Software Engineer role at Alljoined?

The Software Engineer posting at Alljoined states compensation of $140,000 – $200,000 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Alljoined's official career site.

Where is the Software Engineer job at Alljoined located?

This Software Engineer position at Alljoined is located in San Francisco, CA (On-site). Always check Alljoined's application page for specific state eligibility or relocation policies.

What qualifications are required for Software Engineer at Alljoined?

For the Software Engineer role, Alljoined highlights 5+ years of relevant experience; experience with Python, data pipelines, systems architecture, cloud infrastructure. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Software Engineer position at Alljoined?

This listing links directly to Alljoined's Ashby application page. You can apply directly on Alljoined's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.