Senior Fullstack Engineer

September 14

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Customer.io

WebsiteLinkedInAll Job Openings

marketing • analytics • customer retention • user retention • email marketing

51 - 200 employees

Founded 2012

☁️ SaaS

💰 Series A on 2022-03

Description

• We are seeking talented Senior Fullstack Engineers to join our growing engineering team! • You’ll work on challenging problems, building scalable, robust services and user interfaces that drive the future of customer engagement technology. • Design and develop high-performance, scalable services in Go and user interfaces in JavaScript (React & Ember), driving critical workflows that empower businesses to engage with their customers. • Collaborate cross-functionally with partners across Product, Design, and Engineering to shape and implement features that enhance our platform and deliver seamless experiences for our users. • Own the entire development lifecycle, from technical design through implementation and deployment, ensuring reliability, maintainability, and performance at scale. • Lead by example, mentoring your peers and contributing to a culture of shared knowledge, continuous learning, and technical excellence across the team. • Identify high-impact opportunities to improve both backend services and frontend interfaces, turning complex challenges into elegant, user-friendly solutions. • Influence product direction through technical insights, proactively collaborating with others to prioritize features that matter most.

Requirements

• 7+ years of professional experience in full-stack development, with a strong portfolio showcasing complex web applications and distributed systems. • Professional experience with TypeScript combined with advanced knowledge of JavaScript, CSS, and HTML. • Experience in modern JavaScript frameworks. (Bonus if you have experience with Ember.js or React) • Proficiency in backend technologies, ideally with Go or another strongly-typed language such as Java, Kotlin, or TypeScript. • Experience designing and maintaining scalable APIs and services with relational (e.g., PostgreSQL or MySQL) or NoSQL databases. • A cloud-native mindset. Deep experience working in AWS, GCP, or Azure, or tools like Docker and Kubernetes are nice to have. • Passionate about building high-quality, testable code using unit, integration, and end-to-end testing to ensure system stability and performance. • A track record of collaborating effectively in a distributed team environment, with strong written and verbal communication skills and a commitment to mentoring others. • Problem-solving expertise, with the ability to transform complex technical challenges into simple, elegant solutions that delight users. • A DevOps approach to development, with experience in CI/CD pipelines, infrastructure automation, and monitoring production systems. • Demonstrated ability to influence product direction and contribute technical insights that help drive business value.

Benefits

• 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 working space is ergonomic and just what you need to do your best work! • One month sabbatical after five years at Customer.io • We also have opportunities to meet in person with your peers throughout the year