Principal Engineer, LLM – Platform and Tooling

🕒 il y a 1 mois

🇺🇸 États-Unis – Télétravail

💵 $238 400 - $330 200 / an

⏰ Temps Plein

🔴 Expert

🧑‍💻 Développeur Full-Stack

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Upstart

Site WebLinkedInTous les Emplois

1001 - 5000 employés

Upstart est une place de marché de prêt reposant sur l'intelligence artificielle, collaborant avec des banques et des coopératives de crédit pour élargir l'accès à un crédit abordable. En passant au statut de société publique, nous sommes désormais en mesure d'exploiter notre expertise dans le domaine et de révolutionner chaque aspect du prêt et de l'évaluation du risque de crédit. Nous avons récemment élargi nos offres pour inclure le refinancement automobile et prévoyons de diversifier nos secteurs à mesure de la croissance de l'entreprise.\n\nEn tirant parti de la place de marché d'Upstart, les banques et coopératives de crédit utilisant Upstart peuvent bénéficier de taux d'approbation plus élevés et de taux de perte plus bas, tout en offrant l'expérience de prêt numérique d'exception que leurs clients exigent. La place de marché brevetée d'Upstart est la première à avoir reçu une lettre de non-intervention de la part du Bureau de la protection financière des consommateurs en matière de prêt équitable. Upstart ne soutient pas seulement une importante main-d'œuvre à distance, mais dispose également de bureaux à San Mateo, CA; Columbus, OH; et Austin, TX.\n\nLa plupart des collaborateurs d'Upstart nous rejoignent car ils adhèrent à notre mission de permettre l'accès à un crédit fluide basé sur le véritable risque. Si vous êtes stimulé par l'impact que vous pouvez avoir chez Upstart, nous serions ravis de vous entendre !

Description

• Define and drive the multi-year technical roadmap for the Core GenAI Platform, influencing adoption and alignment across several engineering teams • Collaborate with CTO/VP-level and above leadership to influence business strategy with technical insight • Lead architecture and design of large-scale, mission-critical systems for model inference, orchestration, and compliance • Identify and solve systemic technical risks that impact the entire company and business-critical AI initiatives • Represent Upstart internally and externally as a thought leader in GenAI systems through executive reviews, cross-company forums, and industry venues • Establish operational standards for GenAI integrations, ensuring security, fairness, and reliability at scale • Build high-leverage, generalizable platform components that meaningfully accelerate the productivity of engineers across Upstart • Mentor senior engineers, other principal engineers, and shape the growth of future technical leaders, fostering a culture of learning and excellence

🎯 Exigences

• Bachelor’s degree in Computer Science, Engineering, or Mathematics, or a related field (or its equivalent) + 8 years of experience • Deep expertise in LLM-specific infrastructure such as inference optimization (quantization, ONNX, streaming). • Ability to design scalable RAG architectures and manage the lifecycle of models from experimentation to high-availability production environments including vector databases. • Proven experience building robust, automated evaluation pipelines using both heuristic metrics and 'LLM-as-a-judge' frameworks to ensure model accuracy and safety. • Hands-on experience with LLM toolchains such as LangChain, LlamaIndex, or OpenAI APIs • Experience designing and operationalizing ML/LLM platforms at scale, including optimization for cost, latency, and reliability and the platform infrastructure needed to support them. • Deep Expertise in best practices and risks for GenAI including hallucination mitigation, fairness, explainability, and data privacy • 12+ years of experience and 5+ leading cross functional technical initiatives is preferred • Proven ability to execute or guide model fine-tuning and alignment (RLHF/DPO) to optimize LLM performance for specialized consumer use cases and proprietary datasets is preferred. • Full-stack engineering experience (Python, FastAPI, Kotlin, Spring, React/TypeScript, or similar) is preferred. • Deep expertise in backend systems and infrastructure technologies such as Kubernetes, Docker, Terraform, and cloud-native architectures is preferred.

🏖️ Avantages

• Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly • Generous 401(k) plan with Upstart matching $2 for every $1 contributed, up to $15,000 per year • Employee Stock Purchase Plan (ESPP) with discounted stock purchase options for eligible employees • Affordable medical, dental, and vision coverage, with multiple plan options - Upstart covers 90% to 100% of the cost depending on the plans you choose • Health Savings Account contributions from Upstart for eligible plans • Income protection benefits, including company-paid Basic Life, AD&D, and Short- and Long-Term Disability coverage, with options to purchase supplemental coverage • Paid time off, sick and safe time, and company holidays • Paid family and parental leave to support caregiving and major life moments • Family-centered benefits through Carrot and Cleo, supporting fertility, parenthood, and caregiving • Employee Assistance Program (EAP) offering mental health support and life-centered resources • Financial wellness resources, including access to financial planning tools and a financial concierge service • Annual wellness allowance to support your physical and emotional well-being and personal development, based on what matters most to you • Annual productivity allowance to invest in relevant tools and resources you need to do your best work, no matter where you work from • Connection and community through team events and onsites, all-company updates, and employee resource groups (ERGs) • Onsite perks, including catered lunches and fully stocked micro-kitchens when working from one of our four offices, located in the Bay Area, Austin, Columbus, and New York City (opening Summer 2026!).