Principal Engineer, LLM – Platform and Tooling

🕒 Abril 22

🇺🇸 Estados Unidos – Remoto (EUA)

💵 $238.400 - $330.200 / ano

⏰ Tempo Integral

🔴 Especialista

🧑‍💻 Engenheiro Full-stack

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Upstart

SiteLinkedInTodas as Vagas

1001 - 5000 funcionários

A Upstart é um dos principais marketplaces de empréstimos com IA, em parceria com bancos e cooperativas de crédito para expandir o acesso a crédito acessível. Ao nos tornarmos uma empresa de capital aberto, estamos agora prontos para alavancar nossa expertise no domínio e revolucionar todos os aspectos da concessão de empréstimos e avaliação de risco de crédito. Recentemente ampliamos nossas ofertas para incluir refinanciamento de automóveis e planejamos atuar em mais verticais à medida que o negócio cresce. Ao utilizar o marketplace de IA da Upstart, bancos e cooperativas de crédito que utilizam a Upstart podem ter taxas de aprovação mais altas e taxas de perda mais baixas, enquanto simultaneamente oferecem a experiência de empréstimo excepcional e digital-first que seus clientes exigem. O marketplace patenteado da Upstart é o primeiro a receber uma carta de não ação do Bureau de Proteção Financeira ao Consumidor relacionada a empréstimos justos. A Upstart não só apoia uma grande força de trabalho remota, mas também possui escritórios em San Mateo, CA; Columbus, OH; e Austin, TX. A maior parte dos que se juntam à Upstart o fazem porque se identificam com nossa missão de permitir acesso a crédito sem esforço baseado no risco real. Se você se sente energizado pelo impacto que pode causar na Upstart, adoraríamos ouvir de você!

Descrição

• 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

🎯 Requisitos

• 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.

🏖️ Benefícios

• 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!).