Staff Software Engineer, Product

Stack

Responsibilities

• ▹Own important, ambiguous problems from initial framing through launch and iteration
• ▹Set direction, align partners, and stay accountable for the result
• ▹Partner with product, design, and data to shape priorities, scope the work, and define how success is measured
• ▹Lead technical decisions across the stack, including architecture, performance, reliability, and maintainability
• ▹Lead work across teams and systems, build alignment, and resolve technical disagreements
• ▹Improve engineering practices through mentorship, reusable patterns, and clear technical guidance
• ▹Use AI throughout engineering work, with sound judgment about where it helps, where it falls short, and how its output should be reviewed
• ▹Test new workflows, share what works, and identify opportunities for automation
• ▹Participate in an on-call rotation supporting the systems the team builds

Requirements

• ▹A track record of leading complex work across teams or systems and delivering meaningful customer, business, or engineering outcomes
• ▹Strong backend engineering experience, with the ability to work across the stack and lead end-to-end technical decisions
• ▹Strong product and technical judgment, especially when the problem or path forward is unclear
• ▹The ability to influence experienced peers and align teams without formal authority
• ▹Experience using metrics, experimentation, and observability to guide decisions

Soft skills

About the company

Over 9,000 companies use the Customer.io platform to send billions of emails, push notifications, in-app messages, and SMS every day, driven by real-time behavioral data.