Sr. Lead AI Engineer

What You'll Do:

Build and own the end-to-end model fine-tuning pipeline: data preprocessing training evaluation and model registry.
Implement and optimize fine-tuning techniques (QLoRA LoRA PEFT full fine-tune) for our training workloads.
Design and maintain evaluation harnesses with task-specific benchmarks and automated regression testing.
Drive the training iteration loop: analyze results diagnose failure modes improve data and configuration.
Implement experiment tracking hyperparameter optimization and reproducible training workflows.
Collaborate on training data strategy with data engineering including synthetic data generation.
Evaluate model quality across safety accuracy latency and cost dimensions.
Contribute to model serving architecture and inference optimization.
Mentor ML engineers across the team.

What You Will Bring to Coupa:

10+ years of software engineering experience with 4+ years focused on ML/NLP systems.
Hands-on experience fine-tuning large language models with parameter-efficient methods.
Strong knowledge of transformer architectures tokenization and training optimization.
Experience building production ML training pipelines with experiment tracking.
Proficiency in Python PyTorch and distributed training frameworks.
Experience with GPU-based training infrastructure in the cloud.
Strong evaluation methodology: designing benchmarks measuring quality detecting regressions.
Experience with RLHF DPO or other alignment techniques is a strong plus.
BS/MS in Computer Science Machine Learning or equivalent experience.

What We Do

Coupa is a global technology company that helps businesses run smarter by connecting all the ways they spend money — from procurement and expenses to payments and supply chain decisions — in one intelligent platform. In simple terms Coupa gives organizations the visibility and control they need to make better financial choices reduce waste and drive real impact. It’s where technology meets purpose: helping companies manage their resources more responsibly while creating a positive ripple across their people partners and the planet.

Why Work With Us

At Coupa we prioritize an inclusive and empathetic workplace where every voice is valued. Our teams are proactive and accountable ensuring we collaborate effectively to achieve our goals. The foundation of our culture rests on our people; we believe in fostering an environment that encourages innovation and curiosity.

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