Senior Backend Developer – Architecture Focus (Laravel / Azure)

Senior Backend Developer - Architecture Focus (Laravel / Azure)

* Full Time
* Hybrid
* Brunn am Gebirge, Österreich
* With Professional Experience
* 9/1/25

Who We Are

We're Kinnovis, a fast-growing and family-run B2B SaaS company on a mission to modernize the self-storage industry across Europe with smart, automated software solutions. Our headquarters is in Vienna, Austria, and our international team is based in Austria, the UK, Slovenia, Spain and France.

As one of Europe's leading software providers in our niche, we help self-storage operators manage their facilities efficiently through smart, automated software. Currently, we serve clients in 18+ countries, and we are in a phase of fast growth and keep expanding.

What sets us apart? Kinnovis is a family business. We are not dependent on investors; therefore the decision-making process is very lean. Every decision is taken inside the team.

Your Role

We're looking for a Senior Backend Developer with a strong architectural mindset to help us evolve our Laravel-based SaaS platform. The position works in a hybrid work model (one office day per month). This is a hands-on role with a clear balance of responsibilities:

* building, reviewing and optimising backend features in Laravel
* creating, extending and maintaining our architecture and system design, ensuring the platform remains scalable, decoupled and easy to change

You'll work closely with fellow developers, product and the CTO to deliver high-quality code, shape key technical decisions, keep the team aligned on standards and best practices, and drive complex integrations with third-party systems while leading AI-related initiatives -- from embedding AI features into our product to using AI-assisted development tools to accelerate delivery.

What you'll do

Backend Development

* Design, implement and maintain backend services and RESTful APIs in Laravel (PHP)
* Ship production-ready code, write tests and perform thorough code reviews
* Optimise performance through profiling, query tuning and caching strategies
* Implement and maintain integrations with payment gateways, access control systems, CRM platforms and other third-party APIs
* 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

Architecture & System Design

* Contribute to the evolution of our Laravel architecture within a mono-repo setup
* Help define modular boundaries, integration patterns and shared model ownership
* Improve API design, versioning, documentation and decoupling practices
* Provide architectural input via RFCs, ADRs, design reviews and technical guidelines

Collaboration & Ways of Working

* Align backend and frontend teams on conventions, shared libraries and contribution rules
* Participate in architectural syncs, raise technical risks early and propose pragmatic solutions
* Encourage the adoption of AI in the development workflow
* Mentor peers through pairing, reviews and knowledge-sharing sessions

DevOps & Infrastructure (Azure)

* Help guide and improve Azure cloud infrastructure and deployment strategy
* Promote consistent infrastructure-as-code practices (ARM/Bicep/Terraform)
* Support observability improvements across logging, monitoring and alerting

What you'll bring

Must-haves

* 5+ years in backend engineering roles, including recent senior-level ownership
* Strong expertise in Laravel (PHP) and RESTful API design
* Practical experience in a SaaS environment with shared codebases or mono-repos
* Extensive experience in designing and maintaining scalable code architectures, leveraging established principles such as Event-Driven Architecture, SOA, DDD, Layered Architecture and Ports and Adapters
* 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

Nice to have

* Experience with infrastructure-as-code (e.g. Bicep, ARM, Terraform)
* Exposure to Domain-Driven Design or modular monolith patterns
* Working knowledge of Vue.js and frontend system structure

Why Kinnovis

* Competitive salary starting at EUR 68.000/year depending on qualifications & experience
* Flexible working hours and a hybrid work model (one office day per month)
* A modern, international team that values personal responsibility and clear communication
* A technically challenging platform in a stable, growing SaaS business
* A role with a strong mix of hands-on building and meaningful architectural contribution
* Extensive work on integrations and forward-looking AI initiatives
* Influence the future of a system that supports real-world operations

How to apply

Send your CV along with a short note describing either a complex integration you've shipped or what drives your passion for clean code architecture. Include details about your role and one significant trade-off decision you made.

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