Lead Software Engineer, Kernels
Matx
Mountain View, CA · Posted September 22, 2026
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Where Mountain View, CA ranks
Where Mountain View, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for AI-skill jobs45% · of 100
- #1Best cities for AI-skill jobs in the West Coast45% · of 71
- #1Best cities for mid-career professionals in the West Coast68% · of 71
- #1Best all-round cities for mid-career professionals in the West Coast85 / 100 · of 39
- #1Best all-round cities for AI careers in the West Coast96 / 100 · of 39
- #2Best cities for finance pay after cost of living$161k · of 35
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
What MatX Is Building
MatX is on a mission to be the compute platform for AGI. We are developing vertically integrated full-stack solutions from silicon to systems including hardware and software to train and run the largest ML workloads for AGI.
We are seeking a hands-on engineering TLM to lead the Kernel team. You will manage, mentor, and grow a team of kernel engineers while setting technical direction and executing. At the same time, you will be an active coding contributor by designing and implementing high-performance compute kernels for specialized AI hardware.
You will partner with the ML team to maximize output and improve diagnostic tools, and collaborate with hardware to co-design next-generation AI architectures.
What You'll Do Here
- Manage, mentor, and build a team of highly specialized kernel engineers and software developers
- Design and optimize kernels that interface directly with our hardware
- Work in partnership with our ML Research and Hardware Engineering teams
- Provide expertise and guidance on hardware architecture from a programmer's perspective, ensuring seamless integration with the software stack
Who You Are
- 2+ years of engineering team management experience
- 7+ years of working directly within engineering teams experience
- Bachelor of Computer Science or equivalent degree
- Experience optimizing software for specialized hardware, employing techniques such as parallelism, SIMD programming, C, assembly-level optimization, or GPU/CUDA programming
- Language: at least one of assembly, C++, C, Zig, or Rust
- Ability to navigate ambiguity, manage escalations, and align stakeholders around infrastructure decisions.
- Excellent communication and collaboration skills, with a track record of translating complex technical trade-offs with the founders and stakeholders
Bonus Points If You Have
- Experience implementing kernels for ML models such as Transformers
- Experience using and implementing distributed parallelism techniques such as AllReduce, AllToAll, data parallelism, tensor parallelism.
- Familiarity with how compilers work
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 - $160,000 - $275,000 + equity
- Mid Career - $175,000 - $400,000 + equity
- Senior Career - $250,000 - $600,000 + equity
What We Offer
- Time off: 4 weeks PTO (accrued) + 12 company Holidays + up to 3 weeks remote work
- Health: Company-subsidized Medical (Kaiser or Anthem) for employees & dependents, Guardian Dental and Vision insurances for employee & dependents, and life insurance (employee only), plus HSA and FSA offerings via Lively.
- Financial Security: Choose from Roth or pre-tax 401K (or both) with a 5% company contribution (even if you don't contribute), 100% company-paid life insurance (up to $300K), long-term disability and travel insurance.
- Professional Development: $1500 per year Professional Development Budget
- Team Meals: MatX provides onsite team lunch & dinner Monday - Friday, with your choice of ordering via WeBox, Specialty’s or via our reimbursement system
- Commute on Us: We pay 100% for your daily commute. Commute via our company rideshare account, reimburse public transportation, or get a Fasttrak card (or all three)
- MatX E[x]tras: $50/mo to use on the perk you value most
- Cell & Internet Reimbursement: $35/mo for cellular and $40/mo for wifi
- Remote Home Setup: Use our Amazon business account for up to $1000 in office setup purchases.
- Mental Wellbeing: 100% paid mental health benefit via SpringHealth and Guardian EAP.
- Support to Parents: Up to 12 weeks paid parental leave regardless of path to parenthood, 10 weeks pregnancy disability leave, flexible return-to-work hours, and a $6K Family Fund to cover fertility, surrogacy, adoption, menopausal health, preservation, family counseling and more.
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 applicant's 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.