[Hiring] Senior Software Engineer, Full Stack @Customer.io

Role Description

We’re looking for curious, driven Fullstack (Product) Engineers who want to own big things and delight our customers. You’ll design, build, and ship the core product experiences our customers rely on - while helping the team push boundaries on what great communication tools can do.

What You’ll Do

• Build fullstack features in Go, React, and Ember that power key customer workflows
• Collaborate with others to turn ideas into shipped customer value
• Share knowledge and raise the bar through sharing your progress publicly with short videos, thoughtful writing, and mentorship
• Help evolve our systems to scale with more customers, messages, and use cases
• Use AI agents to make multi-file changes by scoping the work, writing the prompt, and verifying the output

Qualifications

• 7+ years of experience building and scaling backend services and product-facing features
• Fluency in TypeScript, React (or similar), and a statically typed backend language like Go
• A strong care for frontend polish, backend performance, and the overall customer experience
• Proficiency with APIs, relational databases, and writing testable, performant code
• A bias for action over perfection, and pride in owning technical decisions

Compensation & Benefits

• Starting salary for this role is $150,000 - $200,000 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
• A professional development budget
• More benefits available

Our Process

• Application - We review everyone with care. Tell us why you're interested.
• Recruiter Call (30 mins) - Let’s chat about what you’re looking for and how we work.
• Behavioral Interview (60 mins) - Talk with one of our hiring managers. We’ll explore topics like ownership, product thinking, and collaboration.
• System Design Interview (60 mins) - Design a system end-to-end. We're looking for how you think, communicate tradeoffs, and drive through ambiguity.
• Take-Home Assignment - Complete a short, realistic task similar to what you’d work on here.
• Assignment Review Calls (2 x 60 mins) - Walk us through your work and discuss tradeoffs, priorities, and how you’d iterate.
• All final candidates will be asked to complete a background check and employment verifications as part of our pre-employment process.

Company Description

Customer.io powers automated communication that people actually want to receive. We help teams send smarter, more relevant messages using real-time behavioral data.