Our client is a leading European online car marketplace, serving 30M+ monthly users across 18 countries.

As a Senior/Lead FullStack Engineer:

- You will play a key technical leadership role within the client’s engineering organization. You will design, build, and evolve scalable backend services and user-facing features across our product suite.
- This role requires a high level of proficiency in using AI tools in day-to-day software development. AI-assisted workflows are not optional—they are an expected part of how we design, implement, test, debug, document, and optimize software. As a Senior/ Lead engineer, you will also help elevate your team’s AI capabilities by modeling effective usage patterns and sharing best practices.

What You'll Do

- Architect, design, and implement scalable services and product features using PHP (Laravel)
- Use AI tools extensively for code generation, refactoring, test creation, debugging, performance optimization, and documentation
- Critically evaluate AI-generated outputs to ensure correctness, security, maintainability, and alignment with architectural standards
- Lead technical design discussions and contribute to system and API architecture decisions
- Own complex features end-to-end, from technical design through deployment, monitoring, and iteration
- Drive improvements in code quality, performance, reliability, and security
- Write clean, maintainable, and well-tested code with strong automated test coverage
- Conduct in-depth code reviews and mentor engineers through actionable feedback
- Coach teammates on effective and responsible AI usage in software engineering workflows
- Collaborate cross-functionally to translate business requirements into scalable technical solutions
- Contribute to cloud infrastructure and services (AWS), ensuring high availability and operational excellence




- Participate in compensated on-call rotations to ensure platform reliability
- Champion DevOps best practices, CI/CD improvements, and observability standards
- Identify and lead technical initiatives that improve long-term platform sustainability

What We're Looking For

- 6-8 years of extensive qualified experience in backend software development
- Strong expertise in PHP and Laravel (6+ years)
- Strong ability to validate, refine, and productionize AI-assisted outputs
- Experience improving team-level engineering practices
- Deep understanding of API design, distributed systems, and scalable architecture patterns
- Experience working withAWS or similar cloud environments
- Strong knowledge ofCI/CD pipelines and modern DevOps practices
- Experience designing and optimizing relational databases and data models
- Proven ability to independently lead complex technical initiatives
- Strong problem-solving skills and ability to navigate ambiguity
- Clear and effective communication skills
- Participate in compensated on-call rotations to ensure reliability of our backend services
- Canadian timezone working hours
- English proficiency at B2/C1 level or higher.

Nice to Have

- Experience integrating AI capabilities into production products (e.g., LLM integrations, AI-driven features, intelligent workflows)
- Experience designing AI-enabled user experiences or backend AI services
- Experience in automotive, dealer software, or SaaS platforms
- Experience with containerization (Docker, Kubernetes)
- Event-driven architectures and messaging systems
- Performance tuning and high-scale system optimization
- Experience working in multi-product platform environments

We offer*:

- Flexible working format - remote, office-based or adaptable
- A competitive salary and good compensation package
- Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
- Active tech communities with regular knowledge sharing

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📌 Senior/ Lead FullStack Engineer (Canada)
🏢 N-ix
📍 Canada