Senior GTM Systems Engineer – Salesforce & Integrations Lead

Klaviyo Inc.; Boston, Northern (MA, KY); Hybrid; USD 116,000 - 174,000; Full time

Job summary

Klaviyo is seeking a Senior Systems Engineer to own our enterprise GTM systems end-to-end, including Salesforce and its integrations. You’ll drive platform health, code quality, and reliable data flows across the GTM stack, partnering with product, architecture, and partner teams.

You will mentor junior developers, size work with the team, and push for professional-grade, Git-based development. This role emphasizes craftsmanship, reliability, and business impact.

Qualifications

• Experience delivering Salesforce-based solutions across the full stack.
• Strong emphasis on code quality and engineering standards (DRY, SOLID, KISS).
• Ability to own delivery of enterprise systems end-to-end and collaborate with Product and Architect.

Responsibilities

• Own delivery of Salesforce solutions—from planning to deployment.
• Maintain platform health and ensure reliable integrations across the GTM stack.
• Mentor junior developers and enforce code quality via reviews and standards.
• Collaborate with Product Owner and Architect to size work and refine stories.

Skills

Mentor junior developers

Engineering best practices

GitHub PR reviews

Tools

Salesforce

Apex

Lightning Web Components

Flow

Integrations

GitHub

Job description

Klaviyo is seeking a Senior Systems Engineer to own our enterprise GTM systems end-to-end, including Salesforce and its integrations. You’ll drive platform health, code quality, and reliable data flows across the GTM stack, partnering with product, architecture, and partner teams.

You will mentor junior developers, size work with the team, and push for professional-grade, Git-based development. This role emphasizes craftsmanship, reliability, and business impact.