Site Reliability Engineering Manager

Details

Customer.io is a platform used by over 7,500 companies to send billions of emails, push notifications, in-app messages, and SMS every day. The platform uses Go, React, Ember, and AI to ship quickly and scale reliably. The Site Reliability Engineering (SRE) Manager will lead the SRE team to ensure the platform is reliable, developer-friendly, and prepared for growth, balancing short-term operational needs with long-term architectural improvements.

Responsibilities

• Lead effective squad rituals and ensure production readiness through high-quality peer review, QA, documentation, deployment, logging, and monitoring practices
• Partner with engineers to ensure solutions are scalable, architecturally sound, flexible, and secure
• Create accountability for delivery timelines while fostering an inclusive, collaborative, and empathetic work environment
• Provide timely, specific coaching and development opportunities for direct reports
• Hire, onboard, and grow the right people to accomplish business objectives within your squad
• Build deep understanding of Customer.io’s vision, products, and customers to drive meaningful engineering investigations and decisions
• Collaborate with other Engineering Managers and technical leaders to align on strategy and execution

Requirements

• 8+ years of engineering management experience, with at least part of that leading SRE or infrastructure teams in SaaS (B2B or B2C), ideally at early-to-mid-stage companies
• 3+ years of hands-on SRE experience designing and operating reliable, scalable infrastructure
• Deep understanding of SaaS architecture, languages, technologies, and cloud infrastructure sufficient to represent and advocate for the squad’s technical choices across the company
• Ability to balance pragmatism and vision: deliver near-term improvements while charting a long-term path forward
• Commitment to technical depth: review proposals, experiment with new technologies, and level up engineers through feedback and mentorship
• Experience building and nurturing high-performing, distributed teams
• Strong communication skills (verbal and written) and ability to stay energized while solving customer-impacting problems under pressure

Technologies & Practices Mentioned

• Languages & frameworks: Go, React, Ember
• AI (used in the stack)
• Cloud infrastructure, deployment, logging, monitoring, QA, documentation, security
• System design and scaling practices relevant to SaaS

Compensation & Benefits

• Starting salary: $175,000 - $195,000 USD (or equivalent in local currency), depending on experience and subject to market rate adjustment
• 100% coverage of medical, dental, vision, mental health, and supplemental insurance premiums for you and your family
• 16 weeks paid parental leave
• Unlimited PTO
• Stipends for remote work and wellness
• Professional development budget and additional benefits (see full benefits link in original posting)

Interview Process

• Application review
• Recruiter call (30 mins)
• Behavioral & leadership interviews (60 mins + 45 mins)
• Technical interview (60 mins) — collaborative system design conversation focused on scaling challenges
• Take-home assignment — short retrospective on a project led as an Engineering Manager
• Retrospective review call (60 mins)
• Final candidates will complete a background check and employment verifications
• Virtual interviews use Zoom video (not chat); offers extended in writing on official Customer.io letterhead

Company & Values

Customer.io values ownership, leaders who drive impact, curiosity and continuous improvement, inclusion, and equity. The company commits to bias-free hiring practices and building an inclusive team culture.

How to Apply

Follow the application instructions in the original posting and contact [email protected] for any application-related questions.