Senior Backend Developer evolving a Laravel-based SaaS platform at Kinnovis for the self-storage industry. Collaborating with teams to deliver quality code and drive integrations with third-party systems.
Responsibilities
Design, implement and maintain backend services and RESTful APIs in Laravel (PHP)
Ship production-ready code, write tests and perform thorough code reviews
Think from the user's perspective before writing any code
Implement and maintain integrations with payment gateways, access control systems, CRM platforms and other third-party APIs
Optimise performance through profiling, query tuning and caching strategies
Use AI-assisted coding tools where appropriate to boost efficiency and maintain quality
Improve robustness by enhancing error handling, resilience and reliability
Contribute to shared libraries within the mono-repo and keep dependencies healthy
Collaborate with frontend engineers (Vue.js) to refine API contracts and data models
Contribute to the evolution of our Laravel architecture within a mono-repo setup
Requirements
7+ years in backend engineering roles, including recent senior-level ownership
Strong expertise in Laravel (PHP) and RESTful API design
Ability to apply user-centric thinking when planning, implementing, reviewing and testing features
Practical experience in a SaaS environment with shared codebases or mono-repos
Extensive experience in designing and maintaining scalable code architectures
Proficient in applying Clean Code principles, with a strong focus on DRY, SOLID and SRP
Proven experience integrating with external APIs and third-party systems (e.g. payments, access control, CRM)
Familiarity with CI/CD, automated testing and DevOps tooling, ideally on Azure
Strong collaboration skills — experienced in working effectively within cross-functional teams
Excellent communication, facilitation, and documentation skills in German and English.
Benefits
Flexible working hours
Hybrid work model
Competitive salary starting at EUR 75.000/year depending on qualifications & experience
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