Lead Software Engineer, Kernels

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.

• 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

• 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

• Experience implementing kernels for ML models such as Transformers
• Experience using and implementing distributed parallelism techniques such as All Reduce, All To All , data parallelism, tensor parallelism.
• Familiarity with how compilers work

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

• 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. See attached benefits 1-pager and full benefits guide for more info on benefits.
• Financial Wellbeing: Choose from Roth IRA/ 401K (or both) retirement plans with up to 5% company contribution to 401K (even if you don't contribute). Also, 100% company-paid life insurance (up to $300K) and long-term disability insurances.
• Professional Development: $1500 Professional Development Budget (per year)
• 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: Commute on our company Uber account, or reimburse your train rides. Either way, we pay 100% for your daily commute.
• 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
• Mental Wellbeing: 100% paid mental health benefit via Spring Health 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 Benepass reproductive health & parental benefit.
• AI Resources: Up to $20K/month plus a dedicated internal AI Tooling Team to support your productivity

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…