Customer Success Manager For Klaviyo

ABOUT MACH 33 MEDIA
Mach 33 Media is a performance-driven digital marketing agency where creativity meets accountability. We build email and SMS programmes that help e-commerce brands connect, convert, and grow and we hold ourselves to measurable results, not just activity. Our team runs lean, moves fast, and takes full ownership of client outcomes.
Website link :- ----------

THE OPPORTUNITY
We're looking for a Customer Success Manager who lives at the intersection of client relationships and Klaviyo execution. This isn't a 'check-in and report' role; you'll be the strategic anchor for your accounts, coordinating across Klaviyo Managers, Copywriters, and Designers to ensure campaigns and flows go out on time, on brand, and on target.

WHAT YOU'LL DO;
Client Management
Own client communication; timely, professional, and proactive across all accounts.
Handle client questions, reporting requests, and performance updates with clarity and confidence.
Build strong client relationships that reduce churn and increase trust in the agency.
Campaign & Flow Execution
Plan and maintain structured campaign calendars across multiple client accounts.
Delegate tasks to Klaviyo Managers and track execution through to delivery.
Review email and SMS campaigns before scheduling copy, design, segmentation, and logic.
Build, audit, and refine Klaviyo flow structures and strategies.
QA flow copy and setup inside Klaviyo to ensure technical accuracy.
Performance & Reporting
Monitor campaign and flow performance metrics open rates, click rates, revenue, deliverability.
Identify performance gaps and surface actionable recommendations to the team and client.
Ensure all deliverables meet quality standards and are submitted on time, every time.

WHAT WE'RE LOOKING FOR;
Experience & Skills
2+ years of experience in email marketing, account management, or project management agency background strongly preferred.
2+ years of hands-on Klaviyo experience: flows, campaigns, segmentation, and reporting.
Proven ability to manage multiple client accounts simultaneously without dropping the ball.
Strong eye for copy, design alignment, and campaign logic you catch errors before they go live.
Comfortable reading and communicating email performance data to non-technical clients.

How You Work
Client-first mindset: you treat every account like it's your most important one.
You take ownership. If something slips, you catch it, own it, and fix it.
Clear, confident communicator in writing, on calls, and across internal teams.
Organised and structured you use systems to stay on top of complexity.
Proactive, not reactive you anticipate problems before they reach the client.
Strong delegation skills: you know how to brief, follow up, and hold the team accountable.

WHY MACH 33
You won't be micromanaged or stuck in a bureaucratic loop. You'll have real ownership over your accounts, work with a sharp team that cares about results, and contribute directly to client growth. If you're someone who takes pride in execution and wants to be measured on outcomes not just output this is the right place.

Ready to apply? We'd love to hear from you.