Senior Fullstack Developer 🌍 (Node.js + React)

Where technology meets care

As Polish outsourcing company with Scandinavian roots, we particularly appraise values such as, this all comes in a Scandinavian work culture.

energy, logic and experience

Imagine building a product that helps hotels and venues worldwide — all from one platform.

sell smarter, manage availability in real time and reach thousands of distribution channels

At, we’re looking for to join a product-driven team working on a. The solution supports as well as, connecting supply with demand at massive scale.

B3 Consulting Poland Senior Fullstack Developers global SaaS platform for the hospitality industry

• hotel room group bookings
• physical meeting rooms and event venues

The ambition?

• Over 100,000 venues with live availability connected globally
• making this platform the largest distribution network in the world

About the product:

The platform consists of three core products used daily by hoteliers and venues:

• Venue & Sales Management
  Manage content, inventory, pricing, business rules and system integrations in one place.
• Internet Booking Engine
  White-label booking technology that can be embedded into customer websites using a no-code setup or APIs.
• Channel Manager & Global Distribution
  One interface to distribute inventory and control sales across worldwide.

10,000+ connected channels

You’ll join a focused on continuously building and evolving new features of the SaaS platform.

• ~15-person product team

Your role & responsibilities:

• Design, develop and implement new product features
• Enhance and maintain existing functionalities
• Work on a vendor-agnostic integration platform (initial focus more on backend development)
• Build scalable and reliable services
• Write clean, maintainable code following best practices
• Take part in database design and architecture decisions
• Own your work together with the team — from idea to production
• Collaborate closely with other engineers, product owners and stakeholders

There are, where responsibility and impact are shared.

• small, autonomous teams

Tech stack:

• Frontend
  React; TypeScript; Redux; Tailwind
• Migration in progress to Next.js
• Backend
  Node.js; Nest.js; TypeScript
• Database
  PostgreSQL
• Infrastructure & tools
  AWS (for the cloud); GitHub; Slack; Notion; Linear (to manage daily work)

Nice to have:

• Experience with modern productivity tools (e.g. GitHub Copilot, ChatGPT, Loom, Raycast/Alfred)
• Knowledge of PHP & MySQL (legacy parts, ongoing migration)
• Familiarity with and collaboration with a design team
  Figma
• Experience with Tailwind CSS and Storybook
• Understanding of online payments & billing (VCC, payment gateways)
• Experience with Adyen, Elavon or Stripe

What we’re looking for:

• Experience as a Senior Fullstack Developer in product or SaaS environments (5+ years)
• Strong knowledge of TypeScript
• Solid backend experience with Node.js / Nest.js
• Good understanding of scalable architectures
• Confidence in database design
• Fluent English
• Product-oriented mindset and sense of ownership
• Ability to collaborate in cross-functional teams

Apply today 🚀