Staff Software Engineer, Segment Personalization

Attentive® is the AI marketing platform for 1:1 personalization redefining the way brands and people connect. We’re the only marketing platform that combines powerful technology with human expertise to build authentic customer relationships. By unifying SMS, RCS, email, and push notifications, our AI-powered personalization engine delivers bespoke experiences that drive performance, revenue, and loyalty through real-time behavioral insights.   Recognized as the #1 provider in SMS Marketing by G2, Attentive partners with more than 8,000 customers across 70+ industries. Leading global brands like Crate and Barrel, Urban Outfitters, and Carter’s work with us to enable billions of interactions that power tens of billions in revenue for our customers.   With a distributed global workforce and employee hubs in New York City, San Francisco, London, and Sydney, Attentive’s team has been consistently recognized for its performance and culture. We’re proud to be included in  Deloitte’s Fast 500  (four years running!),  LinkedIn’s Top Startups ,  Forbes’ Cloud 100 (five years running!),  Inc.’s Best Workplaces , and the  Human Rights Campaign Foundation's Corporate Equality Index ! About the Attentive Team Have you ever received a text message from your favorite brand with an incredible offer?  Did you know that text message marketing delivers the highest ROI of any marketing channel?  And that more customers than ever prefer to connect with brands via text?  That is what we do at Attentive.  We empower the world’s leading brands to engage with their customers at the right moment, with the right message. Our platform powers more than 400 million messages every day, approaching 100 billion annually. We’re building big things!  Check out our tech blog here: https://tech.attentive.com/ About the Role Our Segment Personalization team is the foundation of Attentive's personalization capabilities, processing and serving data for over 100 million customers daily to enable AI-driven, personalized customer experiences. We operate mission-critical infrastructure that powers product recommendations, audience segmentation, and personalized content across the platform. Our systems handle billions of events, serve millions of API requests daily, and leverage real-time stream processing and ML-powered recommendation engines. Joining our team offers a high-growth career opportunity to work on some of the most challenging distributed systems and personalization problems in martech, collaborating with world-class engineers in a high-performance, high-impact culture. As a Staff Software Engineer, you will architect the next generation of Attentive's personalization infrastructure as we expand to encompass customer data and behavioral signals. You will lead technical strategy across teams, design distributed systems that operate at massive scale, and drive architectural decisions that enable platform-wide personalization. Your role will include mentoring engineers across the organization, setting technical direction for complex cross-functional initiatives, and shaping how Attentive delivers personalized experiences to millions of customers. This team owns the data infrastructure that makes personalization possible at Attentive. By architecting scalable, intelligent systems that understand both products and customers, you'll enable our clients to deliver more relevant, engaging messages that drive higher performance and better customer experiences. What You’ll Accomplish Architect the evolution of Attentive's personalization infrastructure to a unified platform encompassing customer, product, and behavioral data. Lead technical strategy across multiple teams, designing distributed systems that operate at massive scale (billions of events, 100M+ customers) with high reliability and performance. Partner with engineering, product, and ML teams to design and deliver complex cross-functional initiatives with strategic business impact. Mentor Staff, Senior, and Mid-level engineers across the organization, raising the technical bar and influencing best practices for distributed systems, data architecture, and ML integration. Your Expertise 7+ years experience as a Software Engineer with a focus on high-throughput distributed systems, with proven impact leading complex, cross-team initiatives. You have deep expertise in distributed systems design, data architecture, and optimization at scale, with strong fundamentals in algorithms and system performance. You are highly knowledgeable about data modeling, data access, and data storage with relational and non-relational databases, with experience making architectural decisions for systems serving millions of requests. You are known for high development velocity and outsized impact. You identify the areas of greatest need, create clear technical plans, and drive execution across teams. You are an empathetic communicator and ment