Principal Software Engineer (AI-Accelerated Product Development)

Are you obsessed with data, partner success, taking action, and changing the game? If you have a whole lot of hustle and a touch of nerd, come work with Pattern! We want you to use your skills to push one of the fastest-growing companies headquartered in the US to the top of the list. 
Pattern accelerates brands on global ecommerce marketplaces leveraging proprietary technology and AI. Utilizing more than 46 trillion data points, sophisticated machine learning and AI models, Pattern optimizes and automates all levers of ecommerce growth for global brands, including advertising, content management, logistics and fulfillment, pricing, forecasting and customer service. Hundreds of global brands depend on Pattern’s ecommerce acceleration platform every day to drive profitable revenue growth across 60+ global marketplaces—including Amazon, Walmart.com, Target.com, eBay, Tmall, TikTok Shop, JD, and Mercado Libre. To learn more, visit pattern.com or email press@pattern.com.
Pattern has been named one of the fastest growing tech companies headquartered in North America by Deloitte and one of best-led companies by Inc. We place employee experience at the center of our business model and have been recognized as one of Newsweek’s Global Most Loved Workplaces®.
We’re looking for a Principal Software Engineer who thrives on shaping technical direction, mentoring engineers, and building innovative, scalable systems that unlock new opportunities. You’ll set the standard for engineering excellence at Pattern: leading/contributing to architecture, guiding teams through ambiguity, and ensuring our AI-driven SaaS products scale reliably. This role combines hands-on building with strategic leadership, giving you broad impact across products, teams, and markets.
This is a full-time role and will work a hybrid schedule based in Lehi, Utah.

What is the day in the life of a Senior Software Engineer?

• You won’t be limited to a single domain. As a Principal Engineer, you’ll influence and lead work across multiple initiatives, such as:
• Short-Form Video Intelligence & Creative Tooling — architect systems that analyze patterns in social video and power data-driven creative workflows.
• Marketplace Content Optimization at Scale — design and scale platforms that normalize attributes, enrich product data, and enable rapid experimentation to improve conversion.
• Applied Automation & Robotics Enablement — build orchestration layers and operator tools that improve throughput and reliability in physical operations.
• AI Platform & Agentic Workflows — establish retrieval, evaluation, guardrails, and observability systems that integrate AI deeply into production environments.


• Essential Duties and Responsibilities
• Lead & Mentor: Guide software engineers through planning, design, coding, delivery, and support phases; mentor and develop top engineering talent; foster a culture of continuous improvement and innovation.
• Cross-Functional Partnership: Work with product, design, and business teams to define, deliver, and support SaaS applications that align with customer needs and market trends.
• Architectural Leadership: Design and implement highly scalable, secure, multi-tenant systems; make day-to-day technical decisions with an emphasis on cloud-native architectures and microservices.
• Delivery & Reliability: Own and continually improve product delivery throughput, system stability, and lifecycle processes in partnership with product leadership.
• Clarity from Ambiguity: Translate complex and ambiguous situations into clear, actionable technical strategies for your team.
• Technical Collaboration: Communicate and collaborate with internal teams and external partners on architecture, APIs, integrations, and data security.
• Raise the Bar: Establish engineering best practices and standards that ensure quality, maintainability, and scalability across all products.

What will I need to thrive in this role?

• Our Preferred Stack (not required to interview)
• We hire for engineering excellence and adaptability. If you’re willing to adopt our tools, we want to talk—even if your background differs.
• Languages & Frameworks: Python, FastAPI, React
• Cloud & Infrastructure: AWS
• Data: SQL (Snowflake)
• Proven ability to architect and deliver production SaaS systems at scale.
• Strong backend and cloud skills, with the versatility to