Senior Full-Stack Engineer

Ruby Labs is a leading tech company that creates and operates innovative consumer products. We are seeking a Senior Full-Stack Engineer to join one of our portfolio companies, a leading provider of payment solutions.

Requirements

• Next.js: Minimum 2 years active commercial experience (v14.x/v15.x), with at least two recent projects using Next.js as the primary frontend framework.
• NodeJS: At least 3 years hands-on with modern frameworks (NestJS, Fastify, Hono), with solid understanding of their architectural trade-offs.
• Databases: Strong PostgreSQL/Supabase skills, including query optimization and schema design.
• ORM: Expert in Prisma or Drizzle ORM, building complex queries and managing migrations.
• Caching: Deep knowledge of caching strategies (in-memory, distributed, CDN) and performance optimization (e.g., Redis).
• Docker: Proficient with Docker and docker-compose for containerized apps and deployments.
• Workers & Queues: Practical experience with background workers and message queues (e.g., BullMQ, RabbitMQ) for async tasks.
• Security: Experienced in secure system design, protecting against OWASP Top 10, CSP, CORS, API security, and hardened hosting.
• Analytics & A/B Testing: Skilled with analytics tools (Google Analytics, PostHog, Mixpanel) and A/B testing platforms.
• Leadership: 2+ years as Team Lead/Tech Lead with direct development team responsibility.
• Mentorship: Passionate about teaching, sharing knowledge, and fostering professional growth.
• Accountability: Proactive, results-driven, takes ownership of team and product success.

Benefits

• Remote Work Environment
• Unlimited PTO
• Paid National Holidays
• Company-provided MacBook
• Flexible Independent Contractor Agreement