Full-Stack Developer

About the role

Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/

Responsibilities

• FullStack Development : Take an active, hands-on role in developing complex features and modules using Next.js for the frontend and NodeJS for the backend.
• Process Management: Implement and optimize Agile methodologies (Scrum/Kanban), including sprint planning, task estimation, and delivery oversight.
• Quality Assurance: Enforce best practices in coding, testing, caching, and performance monitoring to ensure a robust and scalable application.
• Security: Design and implement comprehensive security measures at the application, infrastructure, and data levels.

Requirements

• Next.js: A minimum of 2 years of active, commercial experience with Next.js (v14.x/v15.x). Must have worked on at least two recent projects where Next.js was the primary frontend framework.
• NodeJS: Deep knowledge and at least 2 years of hands-on experience with a modern framework such as NestJS, Fastify, or Hono. A clear understanding of their architectural trade-offs is required.
• Databases: Strong proficiency with PostgreSQL and/or Supabase, including query optimization and schema design.
• ORM: In-depth, practical knowledge of Prisma or Drizzle ORM, with experience in building complex queries and managing migrations.
• Caching: A profound understanding of caching strategies (e.g., in-memory, distributed cache, CDN) and the ability to apply them effectively to optimize performance (e.g., using Redis).
• Docker: Full proficiency with Docker for creating, managing, and deploying containerized applications. Experience with docker-compose is essential.
• Security: Proven experience in building secure systems, including protecting against common vulnerabilities (OWASP Top 10), configuring Content Security Policy (CSP), CORS, securing APIs, and hardening hosting environments.
• Analytics & A/B Testing: Experience working with analytics tools (e.g., Google Analytics, PostHog, Mixpanel) and platforms for A/B testing.
• Communication: Excellent communication skills, with the ability to articulate complex technical concepts clearly to both technical and non-technical stakeholders.
• Product Mindset: The ability to understand business objectives and translate them into technical solutions that deliver real value to users.
• Accountability: A proactive, results-oriented approach and a willingness to take ownership of the team's and the product's success.
• Experience with CI/CD pipelines (e.g., GitHub Actions, GitLab CI).
• Experience with monorepo tools (e.g., Turborepo, Nx).
• Experience writing unit and integration tests (e.g., Jest, Playwright).
• Understanding and practical application of background workers and message queues (e.g., BullMQ, RabbitMQ) for handling asynchronous tasks.
• Location
• Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

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