Senior Software Developer (Front-end strong | ReactJS, Next.js)

SmartDev is a leading provider of global software solutions. SmartDev was established in 2014 and is a wholly owned subsidiary of Verysell Technologies Group (Switzerland). SmartDev combines renowned Swiss quality with the Vietnamese passion to provide excellence and value. SmartDev brings together smart people both internally and externally to create partnerships that push boundaries and challenge the status quo. As part of SmartDev’s aggressive growth plan we are looking to expand our development team. Location: 6th floor, Thong Tan Xa Building, 81 Quang Trung, Hai Chau, Da Nang, Vietnam; 5th floor, Zodiac Building, 19 Duy Tan, Cau Giay, Ha Noi, Vietnam As a Senior Software Developer , you will architect and implement end-to-end solutions with a focus on modern front-end interfaces using Next.js . You will lead the migration and modernization of legacy systems, specifically upgrading packages and converting codebases to TypeScript . Beyond core development, you will be responsible for leading the integration of AI features into business applications and mentoring junior team members on best practices. Responsibilities Architect and implement high-performance front-end solutions using Next.js and ReactJS . Lead development projects and architect scalable, secure full-stack solutions. Drive modernization efforts by migrating legacy 3rd party and in-house systems to TypeScript . Design modular and secure services aligned with enterprise architecture patterns. Implement AI features and develop AI test-cases to ensure safe, accurate, and ethical use. Maintain and migrate Azure infrastructure, including Azure Functions, Logic Apps, and App Services . Optimize CI/CD pipelines using Azure DevOps for automated building, testing, and deployment. Mentor team members in modern React frameworks, Node.js architecture, and Azure best practices. At least 7+ years of professional software development experience. Good English communication ability for international collaboration Strong, hands-on expertise with Next.js and NestJS as core technologies. Advanced mastery of TypeScript across frontend and backend. Experience architecting scalable full‑stack applications using modern React frameworks and Node.js. Proven Azure expertise: Azure Functions, Logic Apps, App Service... Strong background in CI/CD automation (Azure DevOps preferred). Solid understanding of secure coding, API security, cloud security, and best practices. Strong proficiency in system design, microservices, distributed systems, and API design patterns. Nice to have: NestJS as core technologies for for backend services. Experience with large-scale system modernization or cloud migration projects. Exposure to SSR, SSG, ISR strategies in Next.js. Knowledge of caching strategies (Redis, CDN, edge networks). Familiarity with containerization (Docker, Kubernetes) is a plus. Experience with infrastructure‑as‑code (Terraform, Bicep, ARM templates). Strong analytical, problem-solving, and documentation skills. BENEFITS International working environment with AI-driven strategic direction. 20 days of annual leave – Hybrid working mode. Premium healthcare package with PVI and comprehensive annual health check-ups Competitive salary & 13th salary bonus Lunch allowance to fuel your productivity. Engaging company culture with fun activities Global collaboration – Work with both Vietnamese and international colleagues.