Coupa already operates production ML models and frontier model integrations across its AI platform. The Sr. Engineer, AI / Machine Learning will own the model training and iteration workstream, building the fine-tuning pipelines, evaluation harnesses, and iterative training loops that take our model capabilities to the next level. Working closely with the Principal Architect, you will turn architecture decisions into production training infrastructure.
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.
5+ years of software engineering experience, with 2+ 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.
At Coupa, we are 100% committed to creating and nurturing an environment that supports your physical, mental, and community well-being . We offer a comprehensive suite of benefits designed to help you and your family thrive:
Global Well-Being Perks (For All Employees Globally)
- Global Wellness Days: Enjoy two designated, company-wide paid wellness days off each year (typically the first Friday in March and the last Friday in September) so the entire global team can unplug, step away, and recharge together .
- Birthday Time-Off: Celebrate your day! Coupa provides a paid day off on your birthday or another day of your choice within your birthday month .
- Volunteer Time Off (VTO): Giving back is in our DNA. We offer 40 hours of paid VTO annually to support the community initiatives and volunteer programs you are passionate about .
- Employee Assistance Program (EAP): Access free, confidential, 24/7/365 counseling and resources for emotional support, work-life solutions, financial advice, legal guidance, and support for new parents .
- Business Travel Protection: Travel with peace of mind. Zurich Travel Assist provides medical, safety, pre-trip planning, and emergency support during any business travel .
- Referral Bonus Program: Share the Coupa experience! Receive generous monetary referral bonuses when you successfully refer talented friends or acquaintances who are hired into open roles .
Please note: In addition to these global well-being perks, Coupa offers highly competitive, location-specific benefits packages (which include comprehensive medical/dental insurance, retirement/pension plans, and life or accident protection) tailored to your primary work location. Your recruiter will walk you through the specific regional benefits package for this role during the interview process.
Coupa complies with relevant laws and regulations regarding equal opportunity and offers a welcoming and inclusive work environment. Decisions related to hiring, compensation, training, or evaluating performance are made fairly, and we provide equal employment opportunities to all qualified candidates and employees.
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