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Middle Full-Stack Developer

il y a 4 heures

Strasbourg, Grand Est, France Ruby Labs Temps plein
About us

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:

About the role

We're looking for a Mid-Level Full-Stack Developer to join our product engineering team and help us build, scale, and improve our QR code generator web SaaS. In this role, you'll work hands-on across the full stack using on the frontend and on the backend, contributing to the development of complex features that directly impact users and business outcomes. You'll collaborate closely with Product, Design, and other Engineers to turn requirements into clean, scalable, and secure solutions.

This is a product-focused role in a fast-moving environment. The SaaS product is already live and growing rapidly, so your work will immediately go into production and be used by real users worldwide. While you won't be expected to lead the team or define architecture alone, you'll be trusted to take ownership of features, follow best engineering practices, and continuously improve how we build and ship software.

This role is ideal for someone who enjoys building end-to-end features, cares about code quality and performance, and wants to grow within a strong engineering culture.

Key Responsibilities
  • Full-Stack Development: Take an active, hands-on role in developing complex features and modules using 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.
Qualifications

Required Technical Skills (Hard Skills):

  • A minimum of 2 years of active, commercial experience with (v14.x/v15.x). Must have worked on at least two recent projects where 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.
  • Workers & Queues: Understanding and practical application of background workers and message queues (e.g., BullMQ, RabbitMQ) for handling asynchronous tasks.
  • 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.

Personal Qualities (Soft Skills):

  • 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.
Nice to have
  • 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).
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.

Benefits

Discover the perks of being part of our vibrant team We offer:

  • Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
  • Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
  • Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
  • Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
  • Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here:

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

  • Recruiter Screening (40 minutes)
  • Technical Interview (60 minutes)
  • Final Interview (30 minutes)
Life at Ruby Labs

At Ruby Labs, we move fast, aim high, and expect the same from our team. We're not here to play small—we're here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.

This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you're hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.

Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

LI-Remote