Senior Software Engineer

Recommand; Limburg; Hybrid; EUR 75,000 - 110,000; Full time

Job summary

Recommand is seeking a senior software engineer to join our core team. You will work across the full stack—APIs, data modeling, and frontend interfaces—within an infrastructure-focused platform.

You’ll tackle multi-tenant architecture, ERP integrations, and edge cases to deliver robust, scalable systems. Based in Belgium with hybrid or remote work options, you’ll contribute to API design, data mappings, and automation, shaping the platform rather than just building features.

Qualifications

• Strong TypeScript / Node.js expertise.
• Experience designing scalable APIs and data models.
• Ability to integrate with external systems and ERP workflows.
• Comfort with full-stack development including UI considerations.

Skills

TypeScript / Node.js

API design

Database modeling

Integration with external systems

Full-stack development

Job description

About The Role

We're looking for a senior software engineer to join our core team. You'll work across the full stack of our platform - from API design and database modeling to frontend interfaces and integrations.

Recommand is infrastructure, not a CRUD app. You'll work on APIs, data models, integrations, workflows, event-driven systems, and multi-tenant architecture. You'll connect systems, map data, handle edge cases, and deal with the realities of ERP integration and business document exchange.

This is a core team role. You'll shape the platform, not just build features on top of it.

What you'll work with

• Runtime: Bun
• Backend: Hono, TypeScript, OpenAPI + Zod
• Frontend: React 19, Vite, TailwindCSS
• Database: PostgreSQL with Drizzle ORM
• Infrastructure: Docker
• Monorepo: Bun workspaces

What we're looking for

You Should Be

• A systems thinker - comfortable with APIs, data models, event-driven architecture, and multi-system integration
• Full-stack with a platform mindset - you're strong in backend and infrastructure, but you also care about building great UI and UX
• Pragmatic - you build v1s, evolve architecture, and thrive with changing requirements
• Comfortable with ambiguity - this is an early-stage startup, not a feature factory
• Someone who has embraced AI-assisted development - you use AI tools daily and know how to leverage them effectively
• Passionate about open source - you care about building in the open and value extensibility

Strong Signals

• Built or maintained an API platform, SDK, or developer tool
• Integration-heavy product experience - connecting external systems, handling messy data
• Open-source contributor
• Experience with workflow engines, automation tooling, or event-driven systems
• ERP integration, fintech, or invoicing experience
• Startup experience - you've built from zero

Must-haves

• Strong TypeScript / Node.js (or Bun)
• Solid database and API design skills
• Integration mindset - you enjoy connecting systems
• Based in Belgium, available for hybrid or remote work

Nice-to-haves

• React experience
• Peppol or e-invoicing knowledge
• Experience with B2B or supply chain systems
• Familiarity with Belgian/EU compliance landscape

What this is not

• Not a frontend-only role
• Not a pure DevOps/infra role
• Not a feature-building product engineering role
• Not a rigid enterprise environment

How we work

• Small, hands-on, technical team
• Hybrid or remote - based in Belgium, with presence at Corda Campus, Hasselt when needed
• AI-assisted development is the default, not the exception
• Open source core - we build in the open
• Full-time engagement (employee or contractor)