Senior Backend Engineer developing secure, scalable backend services and APIs at Merkle. Collaborating closely with mobile engineering teams and influencing platform - wide architectural decisions.
About the role
- 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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