Used Tools & Technologies
Not specified
Required Skills & Competences
Tag name is followed by "@" symbol and proficiency level value.
About proficiency levels:
- 1-2 — basic awareness. Minimal hands-on experience, and a rudimentary understanding of the technology's purpose;
- 3-6 — daily use. Comfortable and regular usage, capable of handling common tasks and challenges related to the technology;
- 7-9 — you are an expert, you can teach others, you know all the pitfalls and tricks;
- 10 — exceptional knowledge, comprehensive understanding, and adeptness in all aspects of the technology, including advanced problem-solving. Think twice before claiming or demanding such level.
Go @ 4
MySQL @ 3
GCP @ 4
Distributed Systems @ 4
Hiring @ 4
Scoping @ 4
AWS @ 4
Communication @ 4
React @ 4
Observability @ 4
AI @ 4
- 1-2 — basic awareness. Minimal hands-on experience, and a rudimentary understanding of the technology's purpose;
- 3-6 — daily use. Comfortable and regular usage, capable of handling common tasks and challenges related to the technology;
- 7-9 — you are an expert, you can teach others, you know all the pitfalls and tricks;
- 10 — exceptional knowledge, comprehensive understanding, and adeptness in all aspects of the technology, including advanced problem-solving. Think twice before claiming or demanding such level.
Details
Hi, I’m Paul, VP of Engineering at Customer.io. We’re looking for experienced backend engineers who care deeply about reliability, performance, and scalability. You’ll design, build, and evolve the systems that power communication at massive scale - while helping us push the boundaries of what great engineering can look like.
About Customer.io
Over 8,000 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.
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.
Responsibilities
- Design and build distributed systems in Go that help customers send timely, relevant messages at scale
- Collaborate across teams to debug issues and deliver reliable solutions
- Own problems end to end - from architecture and schema design to testing, deployment, and monitoring
- Share knowledge and raise the bar through sharing your progress publicly with short videos, thoughtful writing, and mentorship
- Use AI agents to make multi-file changes by scoping the work, writing the prompt, and verifying the output
Requirements
- 7+ years of experience building scalable, distributed systems in Go (or similar statically typed languages)
- Comfort working in cloud-native environments (AWS, GCP)
- Familiarity with relational databases (we use MySQL) and an understanding of performance tradeoffs
- Experience with observability tooling and operating production systems
- 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.
Customer.io’s inclusive benefits package includes 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; and more.
Our Process
- Application - We review everyone with care.
- Recruiter Call (30 mins)
- Behavioral Interview (60 mins)
- Technical Interview (60 mins) - collaborative system design conversation
- Take-Home Assignment and Assignment Review Call (60 mins)
All final candidates will be asked to complete a background check and employment verifications as part of the pre-employment process.
Values & Culture
Customer.io emphasizes ownership, product thinking, inclusive hiring practices, and building an empathetic and transparent culture. Zoom is the platform used for virtual interviews; offers are extended in writing on official Customer.io letterhead. For questions contact [email protected].