Compiler Engineer-LLVM Backend
DensityAI· Internet· Jun 2, 2026 · 5mo agoPosted 147 days ago
Mountain View, CA
In office
Full-time
Senior
$137K–$195K est.
5+ years exp
Before you apply
Ghost Signal:
Open since June 2, 2026 — 147 days, and still accepting applications.
Job description
About the role
Own LLVM backend development for our custom accelerator ISA — instruction selection, register allocation, scheduling, and linker support across scalar, vector, and floating-point pipelines. Work with chip-design and software teams driving DensityAI's AI accelerator program from first silicon through scale-out.
What you'll do
Own LLVM backend development for our custom accelerator ISA — instruction selection, register allocation, scheduling, and linker support across scalar, vector, and floating-point pipelines
Use and develop AI-assisted tool flows to accelerate compiler development and performance tuning
What we're looking for
Exceptional abilities in LLVM backend internals (TableGen, instruction selection, scheduling, register allocation)
5+ years of compiler engineering experience, with hands-on LLVM target development
Strong understanding of computer architecture, ISA design, and compiler-hardware co-design
Ability to debug correctness and performance regressions across the full compilation flow
(Optional) Custom-ISA bring-up, MLIR experience, GPU / accelerator backends, or linker / loader work
Compensation
Final offers depend on level, location, and skills relevant to the role. Additional compensation: equity grant per company guidelines; medical / dental / vision; 401(k); standard PTO.
Visa Sponsorship
DensityAI sponsors qualified candidates for H-1B, O-1, TN, E-3, and other employment-based visas, and we welcome applicants on F-1 OPT and STEM-OPT. Work authorization is required at start; we provide immigration support to secure or transfer status.
Equal Opportunity
DensityAI is an Equal Opportunity Employer. We do not discriminate on the basis of race, color, religious creed, national origin, ancestry, physical or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age (40+), sexual orientation, military or veteran status, pregnancy, or any other status protected by law. We comply with the California CROWN Act and provide reasonable accommodations on request. Full compensation packages are based on candidate experience and relevant certifications. California pay range $240,000 — $295,000 USD Compensation
Final offers depend on level, location, and skills relevant to the role. Additional compensation: equity grant per company guidelines; medical / dental / vision; 401(k); standard PTO.
Visa Sponsorship
DensityAI sponsors qualified candidates for H-1B, O-1, TN, E-3, and other employment-based visas, and we welcome applicants on F-1 OPT and STEM-OPT. Work authorization is required at start; we provide immigration support to secure or transfer status.
Export Controls
Aspects of this role may involve access to information subject to U.S. export controls (EAR/ITAR). We may discuss licensing or scope adjustments during the interview.
Equal Opportunity
DensityAI is an Equal Opportunity Employer. We do not discriminate on the basis of race, color, religious creed, national origin, ancestry, physical or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age (40+), sexual orientation, military or veteran status, pregnancy, or any other status protected by law. We comply with the California CROWN Act and provide reasonable accommodations on request.
Application prep
Use the role’s language and application details while tailoring your materials.
Keywords to mirror
ai
- Platform
- greenhouse
- Effort
- quick
Benefits
Benefits detected in the listing.
Dental
Vision
401(K)
Pto