Senior Full Stack Engineer - New Product

Klaviyo is a company that empowers creators to own their destiny by making first-party data accessible and actionable. They are seeking a Senior Full Stack Engineer to lead initiatives that enhance product offerings and support company growth, focusing on developing innovative end-to-end solutions using both front-end and back-end technologies.

Responsibilities:

• Lead key initiatives that will enhance our product offerings and support our company’s growth
• Play a crucial part in shaping outcomes by developing innovative end-to-end solutions using both front-end and back-end technologies
• Optimize existing products and create new solutions that redefine what’s possible for our customers
• Tackle complex challenges, develop multiple solutions, and evaluate business and technical trade-offs to determine the best path forward
• Act as a leader and mentor, and drive key technology decisions
• Deploy well-designed, thoroughly tested solutions that ensure reliability and performance
• Drive Klaviyo’s most ambitious innovations—creating and scaling the company’s boldest new bets
• Collaborate across disciplines and push beyond traditional role boundaries to make things happen
• Deliver exceptional work that sets the standard for velocity and results company-wide, while helping shape Klaviyo’s future through experimentation, creativity, and executional excellence

Requirements:

• A proven track record of building high-quality products and systems, with pride in writing clean, high-quality code
• 7+ years of experience in a software engineering role
• Strong experience developing end-to-end software solutions or extensive experience with both front-end and back-end technologies
• Experience leading projects and being accountable for their outcomes
• Experience mentoring team members or driving initiatives that help the team learn new skills
• Experience conducting code reviews and running a robust testing cycle
• Experience working in agile, fast-paced environments
• You've already experimented with AI in work or personal projects, and you're excited to dive in and learn fast
• You're hungry to responsibly explore new AI tools and workflows, finding ways to make your work smarter and more efficient
• Transform workflows by putting AI at the center, building smarter systems and ways of working from the ground up
• Skills with Python and related technologies
• Skills with React and related technologies
• Experience developing digital marketing or customer data software solutions
• Experience with machine learning
• Experience building cloud-native solutions, ideally with AWS