We are building an MLIR-based compiler and inference stack for custom AI silicon used in telecommunications baseband processing. The compiler takes ML models from StableHLO through orchestration, tiling, memory planning, and code generation onto a multi-core processor architecture with custom accelerators. We already have a working proof point. Real workloads are running on custom silicon at competitive perf-per-watt, and we are building the general-purpose compiler stack around it. This is a small team building something real, not a research project. We are hiring a Principal Compiler Engineer to lead the technical direction of the compiler stack while remaining hands-on in the code. You will make the hard architectural calls, own the pieces of the compiler that determine whether it succeeds, and mentor a growing team of senior compiler engineers. We believe the best architecture comes from the people implementing the system, not from a separate role. This is a hands-on technical leadership role. You will architect, code, review, debug, and profile. If you are looking for a role where you design without shipping, this is not it. You will work directly with hardware architects, runtime developers, and AI researchers, and you will shape both the compiler and how the team builds it.
What you will do
Own the technical direction of the compiler stack across model import, lowering, scheduling, memory planning, and code generation
Design and implement the hardest compiler subsystems, the ones that determine whether the compiler achieves its performance and correctness goals
Define MLIR dialect hierarchy, lowering strategy, and pass pipelines in collaboration with the team
Lead hardware-software co-design discussions, partnering with hardware architects to influence instruction set, memory hierarchy, and synchronization mechanisms
Set the technical standards for correctness, determinism, testing, and performance
Mentor Staff and Senior compiler engineers, and shape the technical growth of the team
Represent the compiler team in cross-org technical discussions and roadmap planning
Long Description
The role requires both breadth, reasoning across the full compiler stack, and depth, going deep on whatever subsystem needs it most at a given moment. We expect this person to move fluidly between architecture, implementation, debugging, and performance analysis. Core qualifications
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Deep experience designing and building production compilers, including significant hands-on ownership of major subsystems
Strong C++ and compiler infrastructure expertise
Hands-on experience with MLIR, LLVM, or another production compiler framework at scale
Track record of shipping compiler work that others build on
Strong understanding of computer architecture and how compilers exploit hardware capabilities
Ability to lead complex technical programs across compiler and hardware teams
Experience mentoring senior engineers and shaping team-level technical decisions
Additional Preferred Experience
AI accelerator, NPU, DSP, GPU, or VLIW compiler development
Custom MLIR dialects and hardware-specific IRs
Static scheduling and software-managed memory
DMA engines and multi-level memory hierarchies
Quantization, fixed-point, mixed precision, or complex arithmetic
Bare-metal or embedded inference environments
Runtime, firmware, or device-driver integration
Hardware-software co-design for new silicon
StableHLO, XLA, JAX, PyTorch, TensorFlow, or ONNX
The ideal candidate has deep compiler expertise, can reason across the complete inference flow from framework-level model representation to execution on custom silicon, and wants to remain hands-on rather than move into pure architecture or management.
What happens once you apply? Click Here to find all you need to know about what our typical hiring process looks like.
Ericsson uses a merit-based hiring approach that values people with different experiences, perspectives and skillsets. We truly believe this approach drives innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity employer, learn more.
If you need assistance or to request an accommodation due to a disability, please contact Ericsson at hr.direct.americas@ericsson.com.
DISCLAIMER: The above statements are intended to describe the general nature and level of work being performed by employees in this position. They are not an exhaustive list of all responsibilities, duties and skills required for this position, and you may be required to perform additional job tasks as assigned.
Primary country and city: USA || Austin, Texas
Job details: Developer
Primary Recruiter: Jim Everett
Compensation and Benefits at Ericsson At Ericsson, we know that our people are the key to our success. We offer a competitive package to help with your individual needs and goals.
Your Pay The salary range for this position is dependent on various factors including, but not limited to, location, and the candidate’s
Short-Term Variable Compensation Plan (select STV or SIP): Your pay also includes the opportunity for an annual bonus. Actual bonus payouts are based on performance of the business against the unit’s objectives, individual performance, and the individual bonus target. Certain eligibility and pro-ration rules apply.
Your Health Ericsson offers excellent health benefits including the choice of three medical plan options and a dental plan option that allow an employee to select the level of coverage that suits their needs. Employees will receive company credits in an amount equal to the cost that Ericsson pays toward the cost of their medical and dental premiums for themselves and eligible covered dependents.
Your Financial Security
We invest in both your short and long-term financial wellbeing. The Ericsson US 401(k) Plan offers an automatic 3% company contribution and Ericsson match $1 for every $1 you put into the 401(k) Plan on the first 3% of your eligible pay, plus 50 cents on every $1 on the next 2% of eligible pay. When you contribute at least 5% of eligible pay, you are receiving Ericsson’s full matching contributions of 4%. Matching and company automatic contributions stop when your total eligible pay for the year reaches the IRS limits. Employees will also receive company credits in an amount equal to the cost of basic life insurance and basic accidental death and dismemberment coverage, as well as short-term and long-term disability coverage. Employees also have the option to participate in Ericsson’s Stock Purchase Plan.
Your Time Your work-life balance is important to us. New employees are provided a minimum of 15 days of accrued vacation, up to 3 personal days per year, 11 annual holidays, 8 hours of volunteer time, and 80 hours of sick time annually. Please note paid time off is pro-rated based on the employee’s start date. Furthermore, Ericsson provides up to 16 weeks of paid maternity leave and 6 weeks of parental or adoption leave at 100% of pay.
Additional Benefits Ericsson offers many other company-paid benefits such as financial wellness programs, educational assistance, matching gifts, and recognition programs.
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