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Async Remote Jobs in California (NOW HIRING)

MatX

Runtime Engineer

Mountain View, CA · On-site

$175K - $362K/yr

... async execution, and kernel launch * ML-systems literate - comfortable with the training and ... Remote Perks We work remotely Monday & Friday, supported by home-tech setup, and remote wifi ...

Clerkie

Full-Stack Engineer

San Francisco, CA · Remote

$90/hr

Clerkie is a remote-first company, with over 40 employees spanning 4 time zones across the United ... Application & Coderbyte (async candidate time) * Recruiting Screen w/ Head of People (15-20 minutes ...

Clerkie

Backend Engineer

San Francisco, CA · Remote

$90/hr

Clerkie is a remote-first company, with over 40 employees spanning 4 time zones across the United ... Application & Coderbyte (async candidate time) * Recruiting Screen w/ Head of People (15-20 minutes ...

Vercel

Software Engineer, eve

San Francisco, CA · On-site +1

$208K - $312K/yr

... remote. For location-specific details, please connect with our recruiting team. What you will do ... Strong understanding of distributed systems concepts - durable execution, checkpointing, async ...

Vercel

Developer Success Engineer

San Francisco, CA · On-site +1

$138K - $206K/yr

Strong communication skills-you can explain technical concepts clearly in writing, async channels ... Are comfortable working in a fast-paced, global, remote-friendly environment Benefits:

UJET

AI Software Engineer

Los Angeles, CA · On-site

$150K - $165K/yr

Develop high-performance APIs, async workers, and application logic in Python and TypeScript ... We are unable to sponsor or take over sponsorship of an employment visa at this time. #LI-Remote ...

Zapier

General Counsel

San Francisco, CA · Remote

Zapier Guide to Remote Work * Zapier Code of Conduct * Diversity and Inclusivity at Zapier About ... You've built and led legal teams in a fast-paced, async-heavy environment. You know how to hire ...

Puzzle.io

Customer Support Specialist

San Francisco, CA · Remote

$21.25 - $28.50/hr

Strong written communicator -- crisp, clear, and professional in async channels. You write ... in a flexible, remote-first environment backed by world-class investors. You\'ll have real ...

Truv

Senior DevOps Engineer

San Francisco, CA · Remote

$140K - $170K/yr

Experience with event-driven autoscaling and async task processing systems (e.g., Celery, SQS, KEDA ... Fully remote * Competitive salary and equity package * Health, dental, and vision insurance ...

Imgix

Senior Full Stack Software Engineer

San Francisco, CA · On-site +1

$180K - $210K/yr

Low process, high trust, and async-first communication (recordings, shared notes) to keep teammates across time zones aligned. * Remote-first: Work from anywhere in the United States, with the option ...

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All JobsAsync Remote JobsAsync Remote Jobs in California

Async Remote information

What is the difference between Async Remote vs Full-Stack Developer?

AspectAsync Remote
Required Credentials
Work Environment
Employer & Industry Usage
Comparison Summary

Async Remote refers to a work style emphasizing flexible, asynchronous communication, often used across various roles including developers. Full-Stack Developers are specific technical professionals responsible for both front-end and back-end development. While Async Remote describes how work is done, Full-Stack Developer describes the job role. Many Full-Stack Developers work remotely, sometimes asynchronously, but Async Remote can include roles beyond development. Understanding this distinction helps job seekers identify roles that match their skills and preferred work style.

What are the key skills and qualifications needed to thrive as an Async Remote Worker, and why are they important?

To thrive as an async remote worker, you need strong time management, self-discipline, and the ability to work independently, often supported by experience in remote or distributed teams. Familiarity with collaboration tools such as Slack, Trello, Notion, and asynchronous communication platforms is typically essential. Excellent written communication, proactiveness, and adaptability set top performers apart in this environment. These skills enable effective collaboration, maintain productivity, and ensure project success across different time zones and flexible schedules.

What are Async Remote jobs?

Async Remote jobs are positions where employees work remotely and communicate asynchronously, meaning they don't need to be online or respond in real time. This allows team members to work across different time zones and manage their own schedules, focusing on productivity rather than constant availability. Async Remote work relies heavily on clear written communication and documentation, as well as tools like project management platforms and shared documents. These roles are popular in tech, writing, design, and other digital fields where independent, outcome-oriented work is possible.

What are some common challenges of working in an async remote environment, and how can they be addressed?

One common challenge in async remote roles is maintaining clear and effective communication, as team members often work in different time zones and may not be available simultaneously. To address this, it's important to document discussions thoroughly, use project management tools to track progress, and set clear expectations for response times. Building trust through regular updates and proactively sharing your work can also help foster collaboration and keep everyone aligned, even without real-time interactions.
What cities in California are hiring for Async Remote jobs? Cities in California with the most Async Remote job openings:
Async Remote jobs near you
Infographic showing various Async Remote job openings in California as of June 2026, with employment types broken down into 1% As Needed, 24% Full Time, 70% Part Time, 4% Temporary, and 1% Nights. Highlights an 38% Physical, 3% Hybrid, and 59% Remote job distribution.

Runtime Engineer

MatX

Mountain View, CA • On-site

$175K - $362K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 28 days ago

Job description

What MatX is Building
MatX is building custom silicon for large-language-model inference and training, with HW/SW co-design across ISA, RTL, simulator, compiler, and kernels so each layer benefits from the others. The runtime owns the host-side stack and the contracts that bind those teams together.
What You'll Do Here
  • Build the host-side interface library - device memory management, DMA, streams and events, sync primitives - that every compiler-emitted program runs on top of
  • Own and extend the executable format: the compiler→runtime contract, its versioning, the weight and quantization layouts that let compiler and runtime evolve independently
  • Design the custom-kernel ABI - calling convention, sync semantics, lifecycle - and the host-side marshaling layer (DLPack, the buffer protocol, numpy) that gets Python tensors to the device
  • Build Python bindings via PyO3, with a C-ABI shim as the alternative integration path for downstream consumers
  • Build the LLM inference serving stack - paged KV cache, continuous batching, request scheduling, token streaming - and the cluster orchestration primitives underneath it
  • Bring up interconnect topology from the host and own the failure-detection and clean-teardown path for stop-restructure-resume recovery across racks
  • Design what the chip exposes to host-side profilers and debuggers - perf counters, traces, and the Python surfaces ML engineers actually use - and hit measurable performance targets on runtime overhead and serving throughput
Who You Are
  • Strong experience in a systems programming language - Rust, C, C++, or Go - including memory management, allocator design, and FFI/ABI work
  • Have built Python interop layers in production (PyO3, ctypes, pybind11, or equivalent C-ABI bridging)
  • Have designed and maintained API or ABI contracts between teams - versioning, evolution, breaking-change discipline - not just consumed someone else's
  • Hands-on with at least one accelerator programming model (CUDA, ROCm, oneAPI Level Zero, TPU, or comparable) - enough to reason about device memory, async execution, and kernel launch
  • ML-systems literate - comfortable with the training and inference loop, what collectives do, what a tensor layout is. Research depth not required.
Bonus Points If You Have
  • LLM inference internals - vLLM, TensorRT-LLM, or SGLang (paged attention, scheduler design)
  • Rust at depth, including proc macros, unsafe with soundness reasoning, and complex lifetime/trait work
  • Custom allocator design (slab, paged, arena) or other low-level memory work
  • ML framework integration experience (PyTorch custom backends, JAX/XLA, ONNX runtime)
  • Profiler or tracing infrastructure work (perfetto, Nsight, or a custom stack)
  • Driver-adjacent or kernel-bypass work, or prior new-silicon bring-up
Compensation
The US base salary for this full-time position is determined based on a variety of factors including role, experience, location, job related skills, and relevant education and training. Career length is only a guideline for compensation.
  • Early Career - $120,000 - $250,000 + equity
  • Mid Career - $175,000 - $362,500 + equity
  • Senior Career - $250,000 - $475,000 + equity
What We Offer
  • A Stake in our success A flexible cash equity compensation mix that fits your needs
  • Health & Wellness Company subsidized Health, Dental, Vision, and Life insurance; Pre-tax Health Savings Accounts with generous company contribution (even if you don't)
  • Time To Recharge 4 weeks paid time off (accrued), 12 company holidays, and 3 weeks remote/flexible work per year
  • Support to Parents Up to 12 weeks of paid parental leave, regardless of your path to parenthood
  • Learning & Development $1,500 yearly towards your professional development e.g. conferences, courses, and other learning opportunities
  • Team Connection Team Lunches, quarterly off-sites, and regular town halls
  • Financial Wellbeing. 401K and/or Roth IRA, with 5% company contribution, even if you don't!
  • Flexible Spending Accounts Pre-tax spend accounts for medical, dental/vision, dependent care, parking, and transit expenses
  • Commute On Us For those commuting up to 1 hour, put your rideshare cost on our company card and reclaim the drive-time to get work done!
  • MatX E[x]tras $50 per month to use on the perks you care about most
  • Remote Perks We work remotely Monday & Friday, supported by home-tech setup, and remote wifi expense reimbursement

As part of our dedication to the diversity of our team and our focus on creating an inviting and inclusive work experience, MatX is committed to a policy of Equal Employment Opportunity and will not discriminate against an applicant or employee on the basis of race, color, religion, creed, national origin or ancestry, sex, gender, gender identity, gender expression, sexual orientation, age, physical or mental disability, medical condition, marital/domestic partner status, military and veteran status, genetic information or any other legally recognized protected basis under federal, state or local laws, regulations or ordinances.
This position requires access to information that is subject to U.S. export controls. This offer of employment is contingent upon the applicants capacity to perform job functions in compliance with U.S. export control laws without obtaining a license from U.S. export control authorities.
MatX does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or People team and any resumes submitted are deemed to be the property of MatX.

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