Jobs at Klaviyo

The Software Engineer II will design, build, and maintain internal platforms and tools, automate workflows, and improve productivity using AI, ensuring high-quality, scalable solutions that address operational challenges and support internal teams.

As an Engineering Manager at Klaviyo, you will lead engineering teams to build internal tools and AI-powered solutions, partner across departments to improve efficiency, and foster a culture of collaboration and innovation.

Lead the Amplify Engineering team's development of internal tools and AI-powered systems. Ensure reliability, scalability, and security while mentoring engineers and collaborating with cross-functional teams.

As a Senior Software Engineer on Amplify, you'll design and own internal platforms and automation, improving productivity and solutions for various teams at Klaviyo. You'll lead project lifecycles, collaborate across departments, and mentor other engineers, using modern AI tools to enhance system capabilities.

As a Pre-Sales Solutions Engineer, you'll support sales by delivering technical insights, product demos, and fostering client confidence while collaborating with Account Executives across the EMEA region.

As a Senior Pre-Sales Solutions Engineer at Klaviyo, you'll lead technical sales initiatives, engage with customers to design solutions, deliver demos, and support Account Executives throughout the sales cycle. You'll act as a trusted advisor, using your knowledge of APIs and marketing technologies to foster customer relationships while contributing to internal processes and materials.

As an Engineering Manager for the Amplify team at Klaviyo, you will lead engineering teams to create AI-powered internal tools, improve efficiency, and foster collaboration across departments. You’ll manage complex projects, mentor engineers, and align technical solutions with business goals.

Responsible for identifying potential clients and collaborating with Account Executives on prospecting strategies, while contributing to the outbound process and maintaining Klaviyo's values of accountability and effort.

Lead engineering teams to build and operate a multi-tenant messaging platform, ensuring reliable, compliant message delivery and enhancing developer velocity through clear APIs and tools.

The Senior Payroll Specialist will manage UK & Ireland payroll, coordinate with vendors for multiple countries, ensure compliance, support process improvements, and leverage AI tools for payroll automation.

Provide high-quality product support to Klaviyo customers via email and live chat, diagnose and resolve software issues, document troubleshooting, support non-technical e-commerce/marketing questions, and help build AI-enabled support workflows. Maintain clear, empathetic communication and meet defined KPIs in a fast-paced environment.

Provide French and English product support for Klaviyo customers via email and live chat, diagnose and resolve software/SaaS issues, document troubleshooting, support non-technical e-commerce questions, and help build AI-driven support workflows while meeting KPIs in a high-volume, hybrid Dublin environment.

Provide high-quality product support to Klaviyo customers, diagnose issues, and communicate effectively to enhance customer satisfaction.

The Partner Account Manager will build relationships with SMB partners, articulate the value of Klaviyo's software, drive partner growth, and facilitate co-selling opportunities, while traveling occasionally across Europe.

Provide high-quality Spanish and English support for Klaviyo customers via email and live chat. Diagnose and resolve product and integration issues, document troubleshooting steps, support non-technical e-commerce questions, and help build AI-driven support workflows while meeting KPIs in a fast-paced, hybrid Dublin environment.

Onboarding Specialists guide new customers through their first 30-90 days, helping with implementation, product adoption, and relationship building.

The Senior Software Engineer in Infrastructure Security at Klaviyo designs and develops security systems, improves software availability and scalability, and mentors junior engineers while collaborating on technical projects.

As a Software Engineer on the Infrastructure Security team, you will design, build, and maintain cloud-native security services, improve system efficiency, and collaborate with engineers to ship secure software.

As the Lead Payroll Analyst, you'll oversee payroll operations across multiple countries, ensuring accuracy and compliance, driving process improvements, and mentoring the payroll team. You'll collaborate with various departments and lead payroll reconciliation and reporting activities.

As a Site Reliability Engineer II at Klaviyo, you will ensure platform reliability and scalability, automate operational tasks, and improve systems through observability and collaboration with teams.