About us:

Customer.io is a platform that empowers companies to create personalized customer engagement through automated communication. We’re looking for a Senior Backend Engineer to join our Workflows squad, where you’ll be instrumental in developing the core infrastructure of our customer engagement platform. As a key member of our team, you’ll help push the boundaries of what's possible in customer engagement technology.

Why You’ll Love Working Here:

• You will directly contribute to the core features that drive Customer.io's mission, enabling businesses to create meaningful conversations at scale.
• You’ll tackle complex problems related to scalability, data processing, and high availability that many engineers only dream of.
• Work within the Workflows squad, collaborating closely with frontend engineers, product managers, and designers to deliver features that enhance user satisfaction and our shared success.
• Enjoy the flexibility to work from anywhere in the world, supported by a culture that values diversity, inclusion, and work-life balance.

Some Things You’ll Do:

• Design and implement robust services in Go that enhance our ability to scale dynamically and handle increasing volumes of data efficiently.
• Improve our data handling and storage solutions to support the complex workflows our customers design.
• Work closely with the product team to understand customer needs and translate these into impactful features.
• Identify and address performance bottlenecks in our current systems to ensure high reliability and responsiveness.
• Mentor other engineers, promoting best practices in software development and fostering a culture of technical excellence.

What We’re Looking For:

• Preferably 7+ years of backend development experience with a strong track record in developing high-performance, scalable, distributed systems.
• Strong proficiency in Go; experience with cloud infrastructure services; adept at building and maintaining cloud-native applications.
• Solid experience with relational databases, particularly MySQL, with a talent for writing optimized queries and designing effective database schemas.
• Capable of diagnosing and resolving complex technical issues, committed to improving existing systems and processes.
• Excellent communication skills and a collaborative spirit, comfortable working in a distributed team environment and engaging with various stakeholders.
• Ability to work within North/South American time zones.

Preferred Qualifications:

• Experience in industries that demand high scalability and reliability.
• Expertise in developing asynchronous task systems, real-time data processing, and performance optimization.
• Proven ability to lead projects and mentor engineers towards achieving excellence in code and system architecture.

About Customer.io

Our mission at Customer.io is to power automated communication that people like to receive. Today, over 7,100 internet businesses use Customer.io to manage, send, and track the performance of emails, SMS, push notifications, and in-app messages. Unlike typical marketing platforms, Customer.io helps businesses increase relevance by using behavioral data: what people do or don’t do when logged in to a web or mobile app.

We are offering a starting salary of $160,000 - $184,000 USD (or equivalent in local currency) depending on experience and subject to market rate adjustment.

Benefits at Customer.io include:

• Unlimited PTO - we encourage at least 20 vacation days (in addition to holidays and sick days) so that you can unwind, unplug, and recharge.
• 16 weeks paid parental leave (including adoption and foster care).
• 100% paid insurance premiums for you and your dependents.
• 401k retirement matching - up to 5% dollar-for-dollar match to retirement contributions.
• $1,500 annual healthy lifestyle budget (for gym memberships, classes, fitness equipment).
• $250/monthly Remote Work Stipend to be used for home internet, cell phone, and other miscellaneous remote work costs.
• $300/month co-working space rental reimbursement.
• $2,000/yearly professional education budget for conferences, courses, workshops, books, etc.
• $1,500 home office budget to make sure your workspace is ergonomic and just what you need to do your best work!
• One month sabbatical after five years at Customer.io.
• Opportunities to meet in person with your peers throughout the year.

All final candidates will be asked to complete a background check and employment verifications as part of our pre-employment process.

Customer.io recognizes the impact of systemic injustice on diverse communities and commits to increasing inclusion and equity within the tech industry. We strive to build an inclusive team culture, implement bias-free hiring practices, and develop community partnerships to expand our global impact.

Here’s what you can expect from our hiring process:

1. 30-minute video call with a Recruiter.
2. 60-minute Technical Interview with two members of our engineering team.
3. Take Home Assignment.
4. 60-minute Assignment Review Call with two members of our engineering team.
5. 60-minute Interview with the Hiring Manager.