Staff Engineer; Remote

KnowBe4 empowers the modern workforce to make smarter security decisions every day. Trusted by more than 70,000 organizations worldwide, KnowBe4 is the pioneer of digital workforce security, securing both AI agents and humans. The KnowBe4 Platform provides attack simulation and training, collaboration security, and agent security powered by AIDA (Artificial Intelligence Defense Agents) and a proprietary Risk Score. The platform leverages 15-years of behavioral data to combat advanced threats including social engineering, prompt injection, and shadow AI.

By securing humans and agents, KnowBe4 leads the industry in workforce trust and defense.

Remote positions open to candidates located in the United States.

Role Summary

We are seeking a Staff Engineer to join one of the engineering teams building KnowBe4’s core Security Awareness Training product. This is a full-stack role requiring depth across a Ruby on Rails backend, modern front-end technologies (Vue 3, Svelte Kit), and complex AWS infrastructure.

As a Staff Engineer, you are a technical leader in day-to-day engineering. You drive direction through architectural ownership of the systems your team builds, high-impact code contributions, and cross-team influence.

You’ll work within a platform ecosystem of microservices deployed across our AWS regions, helping ensure we meet rigorous FedRAMP Moderate, SOC 2, and ISO 27001 standards. Our front-end is actively evolving — we’re rewriting our micro-frontends (MFEs) to Vue 3 — so you both shape that migration and keep our current Svelte Kit application healthy. You lead through your engineering, your judgment, and your ability to bring other engineers along with you.

What You’ll Build

• Full-stack product features and subsystems: Ruby on Rails APIs, GraphQL endpoints, and Vue 3 / Svelte Kit + Type Script front-ends that ship real value to a global customer base
• The Vue 3 front-end direction: owning key parts of the micro-frontend (MFE) rewrite onto Vue 3, setting patterns others build on, while keeping the existing Svelte Kit application maintainable
• GraphQL APIs at scale: schema design, batch loading, and query complexity management for high-traffic, multi-tenant access patterns
• Event-driven services: Event Bridge/SQS-based communication between microservices, with an emphasis on idempotency, reliability, and asynchronous processing at scale
• Serverless background processing: evolving and optimizing our Lambda-backed worker framework (400+ workers) that powers the product’s async workload
• Multi-tenant data strategy: architecting patterns across MySQL, PostgreSQL, DynamoDB, and Redis while maintaining strict tenant isolation and compliance guarantees
• Infrastructure-as-Code: Terraform modules and Git Lab CI/CD pipelines that provision and deploy services across multiple environments and regions
• Technical direction: architecture reviews, Architecture Decision Records (ADRs), and cross-team coordination on changes that reach beyond a single service
• Develops software using the KnowBe4 Software Development Lifecycle and Agile methodologies
• Assists other team members by providing technical direction
• Defines approaches and solutions to complex technical problems
• Owns the evolution of major subsystems within the team’s domain
• Translates KnowBe4’s strategic goals into technical roadmaps in collaboration with Product, Security, and Infrastructure teams
• Sets the bar for code quality and engineering patterns through rigorous reviews and technical guidance for senior engineers
• May act as technical lead for larger sub-projects or entire small projects

Skills Requirements

• Backend & Systems — 5+ years scaling production Ruby on Rails applications; expertise in GraphQL (batch loading, complexity management) and relational databases tuning (MySQL/PostgreSQL) for high-traffic, multi-tenant systems
• Frontend — Strong proficiency with a modern component framework and strict Type Script;
  Vue 3 experience is preferred given our MFE direction, and Svelte Kit experience is highly valued for our current codebase (React also translates well); proven ability to lead large-scale front-end work using Vite and Tailwind CSS
• Cloud — Deep experience with…