Most Loved Workplace® Certified Job

Senior Software Engineer - Email Channel

Most Loved Workplace® Certified Job

92% of candidates apply because they are a Most Loved Workplace®

Americas Remote

Engineering

This position may no longer be active.View all open positions at Customer.io

About the Role

At Customer.io, a Most Loved Workplace® certified employer in the Computer Software space, Empower your customers with unified, real-time engagement at scale.

<p class="font-claude-response-body break-words whitespace-normal" data-sourcepos="3:1-3:444;35-478">Hi, I'm Brian, Senior Director of Engineering at Customer.io. We're looking for experienced engineers who want to own a channel end to end — from the infrastructure that delivers billions of messages reliably, to the product surfaces our customers use to build, send, and analyze their campaigns. You'll work across the stack, bringing both systems thinking and product craft to one of the most technically rich problem spaces in the industry.</p>

<p class="font-claude-response-body break-words whitespace-normal" data-sourcepos="5:1-5:261;480-740"><strong>You don't need email experience to apply.</strong> We can teach you the email domain. The engineers who thrive here are the ones who love learning a deep problem space, not only the ones who arrive already knowing it.</p>

<h2 class="text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold" data-sourcepos="7:1-7:21;742-762">About Customer.io</h2>

<p class="font-claude-response-body break-words whitespace-normal" data-sourcepos="9:1-9:246;764-1009">Over 9,000 companies — from scrappy startups to global brands — use our platform to send billions of emails, push notifications, in-app messages, and SMS every day. Customer.io powers automated communication that people actually want to receive.</p>

<p class="font-claude-response-body break-words whitespace-normal" data-sourcepos="11:1-11:169;1011-1179">We help teams send smarter, more relevant messages using real-time behavioral data. Under the hood: Go, React, Ember and AI help us ship fast and scale with confidence.</p>

<h2 class="text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold" data-sourcepos="13:1-13:17;1181-1197">What We Value</h2>

<p class="font-clau

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Why This Is a Most Loved Workplace® Certified Job

What It's Like to Work Here

Users Async Collaboration Across Time Zones

Heart Genuine Empathy in Practice

Zap Flexibility as a Foundation

Lightbulb Continuous Learning & Growth Mindset

Eye Radical Transparency in Decision-Making

Certified for: Certified Most Loved Workplaces® 2025

Frequently Asked Questions About Working at Customer.io

Common questions candidates ask about this role and Customer.io's workplace

Customer.io is a leading AI-powered customer engagement platform designed for tech-savvy organizations to create personalized customer journeys that engage, convert, and scale. Founded in 2012, Customer.io is a globally distributed, remote-first company named one of the fastest-growing private companies on the 2025 Inc. 5000 list.

This position is listed as remote based on the job location.

Salary information may vary by role and location. Please check the specific job listing or discuss compensation during the interview process.

Customer.io is an established organization in its industry. The company is a certified Most Loved Workplace®, highlighting a strong, positive culture and committed workforce.

Key benefit categories include: Health & Wellness, Time Off & Work-Life Balance, Financial & Professional Development, Remote Work & Office Setup, Culture & Recognition. You can view more details on their CertCheck profile.

The day-to-day environment is guided by core values such as Async Collaboration Across Time Zones and Genuine Empathy in Practice and Flexibility as a Foundation.

The company has committed to inclusive practices including: Authentic Growth & Development and Radical Transparency & Open Communication.

They have earned Most Loved Workplace® certifications including: Certified Most Loved Workplaces® 2025.

Customer.io currently has 29 open positions. They are hiring across departments like Business Operations, Customer Experience, Engineering. You can view all current openings at certcheck.mostlovedworkplace.com/companies/customer-io/jobs.

The interview process typically involves an initial recruiter screen followed by team interviews. Please contact Customer.io's recruiting team for specific details on this role's process.