N-iX is looking for Senior/ Lead Full-Stack Engineer to join the team
About the client:
Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior 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:
- Design and develop full-stack cloud solutions from technical analysis to integration testing.
- Support existing systems
- Mentor junior engineers on design patterns, code reviews, testing practices, and scalable architecture.
- Establish documentation standards across teams.
- Conduct root cause analysis and collaborate with production support to resolve issues.
- Evaluate third-party software with business and engineering teams.
- Maintain CI/CD pipelines for applications.
Requirements:
- Canadian timezone work hours (EDT)
- 5+ years of experience with JS for web application development
- 5+ years of experience with React for web application development
- Experience with AWS
- Experience with SEO Tools, taxonomies
- Typescript & CSS must
- Expert proficiency in GenAI-driven development Codex integration, rapid prototyping, automated refactoring, and AI-accelerated debugging
- Deep understanding of AI agents, autonomous task orchestration, reasoning engines, tool-use integration, and multi-step workflow automation
- Mastery of iterative prompting. Chain-of-Thought (CoT), Few-Shot prompting, output validation, and prompt optimization for production-grade code
- Proficiency with Kafka, SQL, and performance optimization
- Strong understanding of event-driven and microservices architecture
- Experience, Application Insights, and responsive front-end design using React
- Background in high-traffic websites, performance tuning, and security
- Ability to communicate technical solutions effectively
- Expertise in unit, component, and integration testing
- Solid grasp of agile methodologies, including ScrumBan/Kanban and Gitflow
- At least Upper-intermediate English level
Nice to Have:
- Previous DevOps Experience is a great advantage
- Experience with Java and Scala
- Experience with observability tools like Datadog
- Proficiency with Java/Spring Boot for building APIs and web applications - nice to have
Team Setup & Work Style:
- Kanban methodology using Jira (product and tech backlog)
- Slack for communication
- Team size: 3-5 FullStack developers and PM
- “You build it, you run it” approach (owning development, releases, and monitoring)
- CI/CD pipelines with Jenkins/GitHub Actions
- Peer code reviews with quality checks (SonarCloud)
- Observability and alerting with Datadog/Opsgenie
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
Skills Required
- Work Canadian timezone hours (EDT)
- 5+ years JavaScript for web application development
- 5+ years React for web application development
- Experience with AWS
- Experience with SEO tools and taxonomies
- TypeScript and CSS
- Expert proficiency in GenAI-driven development and OpenAI Codex integration
- Deep understanding of AI agents, autonomous task orchestration, and tool-use integration
- Mastery of iterative prompting, Chain-of-Thought, few-shot prompting, and prompt optimization
- Proficiency with Kafka
- Proficiency with SQL and performance optimization
- Strong understanding of event-driven and microservices architecture
- Experience with Application Insights and responsive front-end design using React
- Background in high-traffic websites, performance tuning, and security
- Expertise in unit, component, and integration testing
- Familiarity with agile methodologies (ScrumBan/Kanban) and Gitflow
- Upper-intermediate English level
What We Do
N-iX is a global software solutions and engineering services company that helps world’s leading organizations turn challenges into lasting business value, operational efficiency, and revenue growth using advanced technology. Whether you need to build a custom solution, modernize your digital product or acquire extra tech expertise - we have the experience and capabilities to ensure your success. With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, e-commerce, healthcare, and more. Our unique combination of business domain expertise and technical know-how enables us to effectively collaborate with ISVs, tech companies, and enterprises of all sizes. Thanks to the strong tech ecosystem and partnerships with AWS, GCP, Microsoft, SAP, OpenText, Snowflake, and others, we bring extra speed, scale and efficiency to more than 160 organizations across the globe. N-iX is recognized by numerous industry awards, such as CRN Solution Provider 500, Global Outsourcing 100 by IAOP, ISG Provider Lens™, Modern Application Development services providers by Forrester, etc
