✦ Luna Orbit — Software Engineering

Lead Software Engineer - New Products

at Klaviyo

📍 Boston, MA Onsite Posted March 18, 2026
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Position Details

Type Full-Time
Experience lead
Exp. Years 8+ years
Education Not specified
Category Software Engineering

About this role

Klaviyo is seeking a Lead Software Engineer to drive technical strategy and deliver innovative product solutions. The role involves system architecture, mentoring, and collaborating with cross-functional teams to create scalable, high-impact systems.

Key Responsibilities

  • Own technical strategy and architecture
  • Lead design and delivery of complex systems
  • Mentor engineers and support growth
  • Collaborate with product and design teams
  • Ensure system scalability and performance

Technical Overview

This role focuses on software engineering, system architecture, AI workflows, frontend and backend development, and high-quality product delivery within a SaaS environment.

Ideal Candidate

The ideal candidate is a senior software engineer with at least 8 years of experience in designing and leading complex product solutions. They possess strong technical leadership skills, mentorship ability, and experience in scalable system architecture.

Must-Have Skills

8+ years of professional software engineering experienceDesigning and delivering complex solutionsTechnical ownershipMentoring engineersPartnering with product and design teamsArchitectural strategySystem scalabilityHigh-impact solutions

Nice-to-Have Skills

AI-first workflowsProduct architectureCross-disciplinary collaborationHigh-velocity delivery

Required Skills

software engineeringarchitecturefrontendbackendAI workflowssystem designmentoringtechnical leadershipscalabilityperformance optimization

Hard Skills

Software EngineeringArchitectureFrontendBackendAI workflowsHigh-quality product developmentSystem designMentoringTechnical leadershipScalabilityPerformance optimization

Soft Skills

LeadershipMentoringCollaborationProblem-solvingCommunicationDecision-makingTeamwork

Industry & Role

Industry SaaS
Job Function Lead technical development and architecture for new product initiatives
Role Subtype Software Architect

Keywords for Your Resume

software engineeringarchitecturefrontendbackendAI workflowssystem designmentoringtechnical leadershipscalabilityperformance optimizationhigh-quality product developmentfull stackscalable systemssystem architectureproduct initiativesperformance

Deal Breakers

Less than 8 years of experience, Lack of experience in system design or architecture, No leadership or mentorship experience, Unwillingness to work onsite

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