Lead full‑stack development of high‑traffic public websites, integrate AI tooling into the SDLC, design scalable backend and performant UIs, maintain cloud infrastructure, CI/CD, monitoring, and testing, and own services under a you‑build‑it‑you‑run‑it philosophy.
About the client:
Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.
Responsibilities:
- Developing fast, high-traffic public-facing websites
- Explore new technologies and help the team to use them
- Work using AI tools and apply them to the SDLC
- Following software development best practices while delivering the work
- Following testing principles while testing your own code to ensure production readiness
- Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes)
Requirements:
- 5+ years of experience developing reliable, highly available, and scalable software systems
- Hands-on experience in system design
- Strong understanding of software architecture and design patterns
- Firm grasp of clean code principles and coding standards
- Strong proficiency in using AI tools such as ChatGPT, Codex, and Claude Code for rapid development
- Experience integrating AI tools into the development environment for streamlined usage
- Hands-on experience with AI context management, harness engineering, and prompt engineering
- Strong proficiency in backend development with C#(.NET 6+)/NodeJS/Python
- Strong proficiency in TypeScript
- Strong proficiency with SQL and NoSQL databases, including ORM knowledge and database partitioning and sharding techniques for scaling large databases
- Strong proficiency with distributed caching solutions, such as Redis, and advanced caching strategies
- Strong proficiency in frontend development using HTML, CSS, and JavaScript
- Strong proficiency with component-based frameworks and SSR, with Next.js/React as the primary frontend stack; candidates with Vue.js or Angular backgrounds should be willing to transition to Next.js/React
- Knowledge of modern cloud infrastructure and tools such as AWS, Terraform, and Docker
- Strong experience in API design and developing RESTful services
- Proficiency with version control systems such as Git
- Experience working within a formal CI/CD pipeline
- Experience with logging, monitoring, and alerting tools such as Datadog, New Relic, and Grafana
- Solid understanding of the testing pyramid, including unit, integration, and end-to-end testing
- At least an Upper-Intermediate level of English
- Mandatory timezone coverage: working hours must approximately align with the Toronto Eastern Time zone for LATAM-based candidates or 13:00–21:00 EET for EU-based candidates.
We offer*:
- Flexible working format - remote, office-based or flexible
- A competitive salary and good compensation package
- Personalized career growth
- Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
- Active tech communities with regular knowledge sharing
- Education reimbursement
- Memorable anniversary presents
- Corporate events and team buildings
- Other location-specific benefits
*not applicable for freelancers
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