Principal Software Engineer, Member Growth

The Role

SoFi is seeking a Principal Engineer to lead the technical and architectural evolution of our Member Growth platforms — the systems that power member acquisition and engagement for every product across the company. 

Key contributions of this role include:

• Architect agentic and AI-driven systems; define evaluation strategy and drive quality, safety, and compliance of AI workflows in a regulated environment.
• Define and drive long-term architectural direction across Member Growth platforms: campaign automations, communications, marketing data, and web/mobile acquisition.
• Lead cross-organizational platform convergence — building shared primitives that multiple product lines consume while preserving each team’s flexibility.
• Identify and resolve systemic technical problems across teams; drive alignment to deliver on business and strategic goals.
• Raise engineering maturity: design review rigor, operational standards, and mentorship loops that develop senior ICs into technical leaders.
• Collaborate with Product, Marketing, Data Science, Business, Legal, and Compliance to align technology strategy with short and long-term goals.

What You’ll Do

• Architect the next generation of Campaign Automations platform — AI-driven targeting, personalization, and customer journey orchestration at scale.
• Design the unified communications architecture for member engagement at scale with compliance-grade correctness.
• Define the evaluation strategy and drive quality, reliability, safety, and observability of AI-driven workflows in a regulated financial environment.
• Lead cross-organizational platform convergence — shared architectural primitives across organizations with different stacks and competing priorities.
• Establish operational integrity standards: automated verification, reconciliation mechanisms, and self-healing infrastructure that prove these platforms are correct.
• Prototype and ship using AI tools; push the team toward AI-native engineering practices.
• Build engineering culture: rigorous design reviews, clear standards, incident-to-prevention feedback loops, and mentoring senior engineers into technical leaders.

What You’ll Need

• Bachelor’s or Master’s in Computer Science, Software Engineering, or equivalent.
• 10+ years software engineering experience, including 8+ years in technical leadership driving cross-team strategy.
• Deep expertise in event-driven, high-scale distributed systems — failure modes, consistency tradeoffs, reconciliation, and compliance-grade audit trails.
• Proven cross-team technical leadership tied to business goals; exemplary communication and executive-level representation skills.
• Hands-on technical leadership who is willing to roll up your sleeves to design, prototype, and ship critical features in production.
• Proficient in Java, Kotlin, or Go; hands-on with Kafka, Docker, Kubernetes, and Spring Boot or similar.
• Experience with public cloud infrastructure (AWS preferred); strong fundamentals in relational and document databases, microservices, and high-availability design.

Nice To Have

• Experience building marketing, advertising, or communications platforms — multi-tenant or consumer-facing at scale.
• Experience handling data at scale: event processing, storage, and querying for hundreds of millions of events and attributes per day.
• Experience building production AI agents or LLM-powered platforms — orchestration, evals, retrieval/grounding (RAG), and guardrails for regulated environments.
• Experience in financial services or regulated industries where compliance and data integrity are architectural requirements.
• Track record of platform convergence: unifying infrastructure across acquisitions, subsidiaries, or organizations with different technical stacks.