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Who is Cerence AI?

Cerence AI is the global leader in AI for transportation, specialized in building AI and voice-powered companions for cars, two-wheelers, and more that enable people to focus on what matters most. With over 500 million cars shipped with Cerence AI's technology, we partner with leading automakers (such as Volkswagen, Mercedes, Audi, Toyota and many more), mobility providers, and technology companies to power intuitive, integrated experiences that create safer, more connected, and more enjoyable journeys for drivers and passengers alike.

Our Driving Force

Our team is dedicated to pushing the boundaries of AI innovation, working around the globe with headquarters in Burlington, Massachusetts, USA and 16 other offices across Europe, Asia, and North America. We bring together diverse backgrounds, and varied skill sets with the shared goal of advancing the next generation of transportation user experiences. Our culture is customer-centric, collaborative, fast-paced, and fun, with continuous opportunities for learning and development to support your career growth.

Interested in having a significant impact in a dynamic industry with a high-performing global team? We're looking for an exceptional SeniorPrincipalAI Scientist in Generative AI who is ready to drive the future of mobility with us!

What You Will Work On

• Design and trainlargescaletransformer and hybrid foundation models

• Own model architecture choices across text, multimodal, and emerging paradigms

• Diagnose and resolvetraining instabilities at scale

• Navigate scaling tradeoffs across data, compute, and architecture

• Define the technical direction fornextgenerationmodels

Core Responsibilities

Deep Learning & Transformer Foundations

• Apply strong fundamentals in deep learning and representation learning

• Design andmodifytransformer architectures, including:

• Attention variants

• RoPE,ALiBi

• Grouped Query Attention (GQA)

• MixtureofExperts(MoE)

• Build modelsfrom first principles, not just adaptpreexistingcodebases

OptimisationDynamics & Training Stability

• Own optimizer and scheduler choices, including:

• AdamW

• Lion

• Adafactor

• Learningrateand warmup schedulers

• Understand and debug:

• Optimizer instability

• Gradient pathologies

• Divergence at large scale

Scaling Laws & Compute Tradeoffs

• Apply andvalidatescaling laws

• NavigateChinchillastylecompute vs data tradeoffs

• Make informed decisions about model size, dataset size, and training duration

Loss Functions & Alignment

• Design and experiment with loss functions including:

• Nexttokenprediction

• Contrastive objectives

• RLHF,DPO,GRPO

• Understand how loss design impacts convergence, generalization, and alignment

Distributed Foundation Model Training

• Design and executelargescaletraining using:

• FSDP

• ZeRO3

• Tensor parallelism

• Pipeline parallelism

• Apply

• Mixed precision (bf16,fp8)

• Gradient checkpointing

• Partner closely with ML systems teams whileretainingarchitectural ownership

Architecture Innovation

• Explore and implement novel model designs, including:

• MoErouting strategies

• Multimodal fusion architectures

• SSM / hybrid architectures

• Design architectures with KV cache efficiency and inference implications in mind

What Success Looks Like

• Trainingremainsstable as models scale in size and complexity

• Architectural decisions are principled and defensible

• Models converge faster and generalize better due to architecture and optimisation choices

• Failure modes are understood, not mysterious

• The organization develops trueinhousefoundation modelexpertise

Required Experience & Skills

Strongly Required

• Deep theoretical and practical understanding of modern deep learning

• Handsonexperience traininglarge models from scratch

• Ability to reason about optimization, not just tune hyperparameters

• Comfortoperatingin ambiguous,researchdrivenenvironments

Critical Technical Skills

• Transformer internals and attention mechanisms

• Optimisationalgorithms and training dynamics

• Scaling laws and compute/data tradeoffs

• Distributed training strategies and mixed precision

• Architecture innovation for large,realworldmodels

Common ProblemsYou'llBe Solving

• Why training diverges at scale

• How optimizer dynamics interact with architecture

• When scaling laws break down

• The real tradeoffs between data, compute, and model design

What we offer

We offer a generous compensation and benefits package (in addition to the base salary), including:

• Salary range$185,000.00 - $280,000.00 It is not typical for offers to be made at or near the top of the range. The actual salary will be determined based on experience and other job-related factors.

• Annual bonus opportunity

• Insurance coverage (medical, dental, vision, life, and disability)

• Paid time off

• Paid holidays

• Company contribution to the RRSP (Registered Retirement Savings Plan)

• Equity awards for certain positions and levels

• Remote and/or hybrid work available depending on the position

All compensation and benefits are subject to the terms and conditions of the underlying plans or programs, as applicable, and may be amended, terminated, or replaced from time to time.