VN Technology Senior Fullstack Engineer

VN Technology Senior Fullstack EngineerHybridVietnamFull timeHo Chi Minh City, Ho Chi Minh City, VietnamHanoi, Hanoi, VietnamShare this job DescriptionRole OverviewWe are looking for a Sr Fullstack Engineer to drive the development of the CADDi SaaS Platform. In this role, you will build and scale a high-performance web application that handles complex business logic and user interactions. You will work across the full stack, from designing DB, APIs with domain-driven design principles to optimizing frontend performance, using modern web technologies and architectural patterns.What You Will Do (Key Responsibilities)End-to-end design, develop & maintenance CADDi SaaS product, ensuring high availability and low latency.Work with modern TypeScript stack (NestJS, Next.js…) in a complex web application.Build and maintain GraphQL APIs following domain-driven design principles and schema-first approach.Collaborate with cross-functional international teams to validate, implement & delivery features.Participate in code reviews and maintain high code quality standards.Hand-ons in product operation such as on-call, incident response & troubleshooting.Write high-quality technical documentation (eg. ADR, Design Docs, Runbook) and actively participate in architectural decisions.RequirementsMUST HAVE7+ years of experience in web application development.Proficiency in statically typed programming languages such as TypeScript/Rust… with experience in both frontend and backend development.Experience in FE development specially React (Hooks, Context, State Management) and Next.js (SSR/SSG).Backend development experience with Node.js and GraphQL (Schema design, Resolvers, N+1 problem solving).Hands-on experience with PostgreSQL & ORM(Prisma) database design and optimization.Experience building and maintaining REST and GraphQL APIs.Knowledge of domain-driven design and modular architecture patterns.English communication skills ~B1 (Reading/Writing/Speaking) for global collaboration.NICE TO HAVEExperience with patterns & architecture such as BFF, clean architecture , micro-services & DDD, eg…Familiarity with Cloud Infrastructure (GCP, Kubernetes) and CI/CD pipelines (GitHub Actions).Experience in B2B SaaS or complex enterprise applications.Experience in design and development of large systems across multiple teams.Experience working with Scrum or Agile methodologies.Experience developing security-conscious web applications.Product development environmentFrontend: TypeScript, React, Next.jsBackend: TypeScript, Node.js (NestJS), Rust (Axum).Machine Learning/Algorithms: Rust, Python, OpenCV, PyTorch,TorchServe, Elasticsearch, Vertex AIInfrastructure: Google Cloud, Google Kubernetes Engine, Anthos Service Mesh, Istio, Cloudflare, Argo WorkflowsEvent Bus: Cloud Pub/SubDevOps: GitHub, GitHub Actions, ArgoCD, Kustomize, Helm, Terraform, Datadog, MixPanel, SentryData: CloudSQL (PostgreSQL), AlloyDB, BigQuery, dbt, troccoAPI: GraphQL, REST, gRPCDevelopment tools:GitHub Copilot, Figma, StorybookCommunication Tools: Slack, Discord, JIRA, Miro, ConfluenceWho fits this role?Product-Minded: You care about the "Why" behind the feature, not just the code. You proactively clarify requirements to deliver the best user value.Detail-Oriented: You care about edge cases, error handling, and UI consistency.Continuous Learner: You stay updated with the latest trends in the JavaScript/TypeScript ecosystem and apply them pragmatically.BenefitsAPPLICATION GUIDELINES & BENEFITS1. Working style:Hybrid (come to Office at least once a week)Remote (depending on the case, and limited to those who can go on business trip due to Company orders)2. Office address: HCMC: 7F, Gia Loc Building, No. 27-29 Nguyen Cuu Van Street, Ward 17, Binh Thanh District, HCMCHanoi: Unit 9.03, 9F, The West Building, 265 Cau Giay Street, Cau Giay Ward, Hanoi3. Employment type: Official full-time employeeProbation period: 2 months4. Holidays and leave:Annual paid leave: 12 daysNational holidaysYear-end...