Senior Research Engineer/Scientist
ServiceNow, Inc.
Tout a commencé sous le soleil de San Diego, en Californie, en 2004, lorsqu’un ingénieur visionnaire, Fred Luddy, a vu le potentiel de transformer notre façon de travailler. Aujourd’hui, ServiceNow se présente comme un leader mondial du marché, apportant une technologie innovante améliorée par l’IA à plus de 8 100 clients, dont 85% des entreprises du Fortune 500®. Notre plateforme intelligente basée sur le nuage connecte de manière transparente les personnes, les systèmes et les processus pour permettre aux organisations de trouver des méthodes de travail plus intelligentes, plus rapides et meilleures. Mais ce n’est que le début de notre voyage. Joignez‑vous à nous dans la poursuite de notre objectif de rendre le monde meilleur pour tous.
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could do that for everyone—freeing people from busywork so they could focus on meaningful work. Today, ServiceNow is the AI control tower for business reinvention. Our ServiceNow AI platform brings together any AI, any data, and any workflow— helping 85% of the Fortune 500® work smarter, faster, and better. We're building an AI-native culture where technology and talent are unstoppable together. And we're just getting started.
Join us to put AI to work for people.
L’équipe de formation de modèles IA de base dirige la recherche et l’ingénierie tout au long du cycle de vie du développement de grands modèles de langage pour les cas d’utilisation d’entreprise : curation des données, préentraînement, ajustement fin et évaluation. Notre objectif est d’améliorer continuellement nos modèles d’entreprise personnalisés en intégrant de nouvelles techniques et en optimisant l’efficacité de l’entraînement et de l’inférence, établissant ainsi un avantage différencié pour les applications d’IA sur toute la plateforme.
Ces modèles sont utilisés dans plusieurs unités d’affaires pour alimenter un large éventail de cas d’usage, permettant aux équipes de résoudre des problèmes complexes et de fournir des solutions sur mesure. Vous aiderez à bâtir la prochaine génération de modèles de langage d’entreprise qui intégreront les expériences d’IA au quotidien de nos clients, en desservant 9 000+ clients d’entreprise à travers le monde. Nous commençons tout juste avec nos clients premiers adoptants, et nous avons besoin de votre aide pour bâtir une gamme incroyable de solutions.
Ce que vous pouvez faire dans ce rôle :
Face à des défis et des ensembles de données réels, vous utiliserez votre expertise et votre créativité en IA/ML pour appliquer les méthodes existantes et en développer de nouvelles afin de résoudre des problèmes de façon pratique et évolutive.
Recherchez, proposez, mettez en œuvre, entraînez et évaluez des modèles et des techniques de bout en bout.
Construisez et maintenez des canaux de formation et des outils d’évaluation qui rendent les résultats reproductibles et les progrès mesurables.
Collaborez quotidiennement avec des chercheurs scientifiques, des ingénieurs et des gestionnaires de produit pour livrer des travaux de haute qualité et à fort impact.
Assumez votre travail de la conception à la mise en œuvre, aux tests et à la livraison, en collaborant avec les propriétaires de produits pour traduire les exigences en résultats
The Core AI Model Training team leads research and engineering across the full lifecycle of large language model development for enterprise use cases: data curation, pretraining, fine-tuning, and evaluation. Our goal is to continuously improve our custom enterprise models by incorporating novel techniques and optimizing training and inference efficiency, establishing a differentiated advantage for AI applications across the platform.
These models are consumed across multiple business units to power a wide range of use cases, enabling teams to solve complex problems and deliver tailored solutions. You'll help build the next generation of enterprise language models that bring AI experiences into our customers' day-to-day work, serving 9K+ enterprise customers worldwide. We're just getting started with our early‑adopter customers, and we need your help building an amazing range of solutions.
What you get to do in this role:
Confronted with real-world challenges and datasets, you will use your AI/ML expertise and creativity to apply existing methods and develop new ones to solve problems in a practical and scalable way.
Research, propose, implement, train, and evaluate models and techniques end to end.
Build and maintain training pipelines and evaluation harnesses that make results reproducible and progress measurable.
Collaborate daily with research scientists, engineers, and product managers to ship high-quality, high-impact work.
Own your work from design through implementation, testing, and delivery, partnering with product owners to translate requirements into results
Expertise en LLM post‑formation, incluant l’ajustement fin supervisé et la distillation.
Expertise en apprentissage par renforcement pour les LLM, incluant PPO, GRPO, DPO et modélisation par récompense.
Expérience pratique avec des cadres d’entraînement et des formations distribuées/à grande échelle, incluant FSDP, DeepSpeed et Megatron, ainsi que des stratégies de parallélisme telles que tensor, pipeline, expert et parallélisme de données.
Expérience en génération de données synthétiques pour la formation et l’évaluation.
Expérience en curation de données à grande échelle, incluant la déduplication, le filtrage et la conception du mélange de données.
Familiarité avec une gamme d’architectures de transformateurs, incluant décodeur uniquement/autorégressif, encodeur-décodeur et mélange d’experts.
Python de niveau expert avec de solides bases en POO et en design pattern.
Capacité à lire les recherches actuelles et à prototyper rapidement et à expérimenter de nouvelles idées.
6+ ans d’expérience pertinente avec un baccalauréat, 4+ ans avec une maîtrise, un doctorat ou une expérience équivalente.
Qualifications préférées :
Fondement en évaluation et benchmarking, incluant la construction de harnais d’évaluation, les vérifications de contamination et les benchmarks personnalisés pour entreprises.
Expérience de préentraînement ou une perspective de bout en bout entre le préentraînement et le post‑entraînement, avec une compréhension de la façon dont les choix d’une étape se propagent à l’autre.
Familiarité avec les technologies d’inférence et de service telles que vLLM ou SGLang, la quantification et les compromis KV-cache.
Publications dans des lieux de premier plan tels que ICLR, NeurIPS, ICML, ACL, EMNLP ou AAAI.
Maîtrise des outils de productivité en IA comme Claude Code et Codex, avec un historique d’intégration réfléchie de l’IA dans les flux de travail d’ingénierie et de recherche
Expertise in LLM post‑training, including supervised fine‑tuning and distillation.
Expertise in reinforcement learning for LLMs, including PPO, GRPO, DPO, and reward modeling.
Hands‑on experience with training frameworks and distributed/large‑scale training, including FSDP, DeepSpeed, and Megatron, as well as parallelism strategies such as tensor, pipeline, expert, and data parallelism.
Experience with synthetic data generation for training and evaluation.
Experience with data curation at scale, including deduplication, filtering, and data‑mixture design.
Familiarity with a range of transformer architectures, including decoder‑only/autoregressive, encoder‑decoder, and mixture‑of‑experts.
Expert‑level Python with strong OOP and design‑pattern fundamentals.
Ability to read current research and rapidly prototype and experiment with new ideas.
6+ years of relevant experience with a Bachelor's degree, 4+ years with a Master's degree, a PhD, or equivalent experience.
Preferred Qualifications:
Grounding in evaluation and benchmarking, including building evaluation harnesses, contamination checks, and custom enterprise benchmarks.
Pretraining experience or an end‑to‑end perspective across pretraining and post‑training, with an understanding of how choices in one stage propagate to the other.
Familiarity with inference and serving technologies such as vLLM or SGLang, quantization, and KV‑cache tradeoffs.
Publications at top‑tier venues such as ICLR, NeurIPS, ICML, ACL, EMNLP, or AAAI.
Fluency with AI productivity tools such as Claude Code and Codex, with a track record of thoughtfully integrating AI into engineering and research workflows
Work Personas
Nous abordons notre monde du travail distribué avec flexibilité et confiance. Les profils de travail (flexible, à distance ou requis au bureau) sont des catégories attribuées aux employés de ServiceNow en fonction de la nature de leur travail et de leur lieu de travail assigné. Pour en savoir plus, cliquez ici. ( Pour déterminer l'éligibilité à un profil de travail, ServiceNow peut confirmer la distance entre votre résidence principale et le bureau ServiceNow le plus proche à l'aide d'un service tiers.
Equal Opportunity Employer
ServiceNow est un employeur qui souscrit au principe de l'égalité d’accès à l’emploi. Tous les candidats qualifiés recevront une considération pour l’emploi sans égard à la race, la couleur, la croyance, la religion, le sexe, l’orientation sexuelle, l’origine nationale ou la nationalité, l’ascendance, l’âge, le handicap, l’identité ou l’expression de genre, l’état matrimonial, le statut d’ancien combattant ou toute autre catégorie protégée par la loi. De plus, tous les candidats qualifiés ayant des antécédents d’arrestation ou de condamnation seront pris en considération pour un emploi conformément aux exigences légales.
Accommodations
Nous mettons tout en œuvre offrir une expérience accessible et inclusive pour tous les candidats. Si vous avez besoin d’une mesure d’adaptation raisonnable pour compléter une partie du processus de candidature ou si vous n’êtes pas en mesure d’utiliser cette candidature en ligne et que vous avez besoin d’une autre méthode pour postuler, veuillez communiquer avec View email address on publisher.sourcingsquare.com pour obtenir de l’aide.
Export Control Regulations
Pour les postes nécessitant l’accès à une technologie contrôlée assujettie aux règlements sur les contrôles à l’exportation, y compris les U.S. Export Administration Regulations (EAR), ServiceNow peut être tenu d’obtenir l’approbation des autorités gouvernementales en matière de contrôle des exportations pour certaines personnes. Tout emploi est subordonné à l’obtention par ServiceNow d’une licence d’exportation ou d’une autre approbation qui pourrait être requise par les autorités de contrôle des exportations compétentes.
Extrait de Fortune. ©2025 Fortune Media IP Limited. Tous droits réservés. Utilisé sous licence.
Work Personas
We approach our distributed world of work with flexibility and trust. Work personas (flexible, remote, or required in office) are categories that are assigned to ServiceNow employees depending on the nature of their work and their assigned work location. Learn more here ( . To determine eligibility for a work persona, ServiceNow may confirm the distance between your primary residence and the closest ServiceNow office using a third‑party service.
Equal Opportunity Employer
ServiceNow is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, gender identity, veteran status, or any other category protected by law. In addition, all qualified applicants with arrest or conviction records will be considered for employment in accordance with legal requirements.
Accommodations
We strive to create an accessible and inclusive experience for all candidates. If you require a reasonable accommodation to complete any part of the application process, or are unable to use this online application and need an alternative method to apply, please contact View email address on publisher.sourcingsquare.com for assistance.
Export Control Regulations
For positions requiring access to controlled technology subject to export control regulations, including the U.S. Export Administration Regulations (EAR), ServiceNow may be required to obtain export control approval from government authorities for certain individuals. All employment is contingent upon ServiceNow obtaining any export license or other approval that may be required by relevant export control authorities.
From Fortune. ©2026 Fortune Media IP Limited. All rights reserved. Used under license.
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