N-iX is looking for a talented Middle Fullstack engineer to join our team!
Our client is one of Europe's fastest-growing mobile companies with over 5 million active customers, 1,000 employees worldwide, and operations in five countries. The client is using the mobile virtual network operator business model.
We are seeking a skilled Full Stack Developer with expertise in Next.js and Node.js to design, develop, and maintain modern, scalable web applications. The ideal candidate will have strong proficiency in both frontend and backend technologies, experience in building performant applications, and a good understanding of DevOps practices.
Responsibilities:
- Design, develop, and maintain scalable web applications using Next.js (React framework) and Node.js
- Build and optimize server-side rendering (SSR) and static site generation (SSG) with Next.js
- Develop and maintain RESTful APIs or GraphQL APIs using Node.js and related frameworks (Express, Nest.js, etc.).
- Implement authentication, authorization, and secure data handling practices
- Collaborate with UI/UX designers to create responsive, accessible, and user-friendly interfaces
- Optimize application performance (caching, code-splitting, lazy loading, CDN usage)
- Work with databases (SQL or NoSQL) for schema design, queries, and data modeling
- Integrate third-party services, APIs, and microservices
- Write clean, maintainable, and well-tested code
- Participate in code reviews, design discussions, and Agile/Scrum processes
- Deploy and monitor applications using cloud services (AWS, GCP, Azure) or platforms like Vercel
Requirements:
- 3+ years of professional experience with Next.js and Node.js
- Strong experience in JavaScript (ES6+) and TypeScript
- Hands-on experience with Next.js (SSR, SSG, API routes, dynamic routing)
- Solid experience with Node.js and backend frameworks (Express.js, Nest.js)
- Good understanding of React ecosystem (hooks, context API, state management libraries like Redux/Zustand)
- Experience with databases (PostgreSQL, MySQL, MongoDB, or similar)
- Familiarity with RESTful APIs and GraphQL
- Knowledge of CI/CD pipelines, Git, and containerization (Docker/Kubernetes)
- Strong debugging and problem-solving skills
- Good understanding of web security best practices (JWT, OAuth, CSRF, XSS, etc.)
Would be a plus:
- Experience deploying applications on Vercel, AWS Lambda, or other serverless platforms
- Familiarity with Headless CMS (e.g., Strapi, Sanity, Contentful)
- Experience with testing frameworks (Jest, Cypress, Playwright)
- Knowledge of microservices and event-driven architectures
- Familiarity with WebSockets and real-time communication
Experience with performance optimization and SEO best practices for Next.js apps
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
Top Skills
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
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