Deputy Head Of Engineering (Node.js / Next.js)

TL;DR

Deputy Head of Engineering (Node.js / Next.js): Overseeing architectural integrity, security, and technical excellence of innovative consumer products across health, education, and entertainment. Focus on maintaining code quality, leading AI adoption, and ensuring projects align with company architecture and long-term scalability.

Location: Remote within approximately ± 4 hours of CET (Central European Time) zone.

Company

Ruby Labs is a leading tech company that creates and operates innovative consumer products across the health, education, and entertainment industries.

What you will do

• Ensure all projects strictly follow established company architecture and approve architectural changes.
• Maintain high code quality across teams, identifying bottlenecks and potential bugs.
• Involve in the deployment and configuration of new projects, ensuring correct setup from Day 1 (CI/CD, environment variables, hosting).
• Implement and oversee security measures at both code and hosting levels (WAF configuration, secure headers, data encryption).
• Lead the implementation of new technologies, focusing on AI-driven workflows and MCP.
• Manage technical aspects of A/B testing via Growthbook and ensure accurate data tracking through Mixpanel and GTM.

Requirements

• 3+ years of intensive experience with Node.js & Next.js.
• 3+ years of experience managing engineering teams.
• Experience with AWS and Cloudflare.
• Understanding of Postgres and experience with modern ORMs like Drizzle or Prisma (migrations, query optimization).
• Proficiency in setting up and interpreting data from Mixpanel and Google Analytics; experience running A/B tests.
• Strong knowledge of web security principles (OWASP, WAF, hosting-level protection).

Nice to have

• Practical experience with Model Context Protocol to build or optimize AI-assisted development tools.
• Experience in fine-tuning Web Vitals and optimizing backend latency for high-traffic applications.
• Experience building custom AI agents or complex RAG systems.

Culture & Benefits

• Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
• Enjoy unlimited paid time off to recharge and prioritize your well-being.
• Celebrate and relax on national holidays with paid time off to unwind and recharge.
• Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
• Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities with a flexible independent contractor agreement.

Hiring process

• Recruiter Screening (40 minutes)
• Technical Interview (90 minutes)
• Final Interview (60 minutes)