Senior Backend Engineer

6 days ago

Hanoi, Hanoi, Vietnam VinSmart Future Full time $60,000 - $120,000 per year
Top 3 reasons to join us
  • Competitive Salary & Benefits
  • Training course and certificates
  • The preferences when using the services of the Vin
Job description

Key Responsibilities

  • Design & implement scalable backend architectures using Python (FastAPI, Flask, or Django).
  • Build and optimize AI-powered backend services, integrating models and inference pipelines with minimal latency.
  • Develop and manage cloud infrastructure on Azure (AKS, App Services, Azure Functions, Azure Storage, etc.).
  • Implement task orchestration and parallel computing workflows using multithreading, multiprocessing, and asynchronous execution for compute-intensive workloads.
  • Design auto-scaling mechanisms to dynamically allocate compute resources (VMs, containers, GPUs) based on workload or active users.
  • Integrate and optimize databases (PostgreSQL, Redis, or similar) for data persistence, caching, and fast retrieval.
  • Collaborate with AI and FE engineers to deploy and serve machine learning models efficiently (batch or real-time inference).
  • Monitor and troubleshoot performance bottlenecks, ensuring uptime, fault tolerance, and system reliability.
  • Contribute to DevOps and CI/CD pipelines, automating deployment and testing workflows.
  • Mentor junior engineers and review code for best practices and maintainability.
Your skills and experience

Qualifications

Must Have

  • 5+ years of backend development experience, with at least 3 years in Python (FastAPI, Flask, or Django).
  • Strong understanding of object-oriented programming and software architecture patterns (e.g., microservices, event-driven systems).
  • Hands-on experience with Azure Cloud Services (AKS, Web App, App Service, VM scaling, Azure Blob Storage).
  • Experience in parallel and distributed processing (multithreading, multiprocessing, async I/O, Celery, Ray, Dask, etc.).
  • Solid experience with auto-scaling infrastructure (compute scaling, load balancing, or container orchestration).
  • Experience integrating AI models or services (e.g., chatbot backends, image recognition APIs, or ML inference systems).
  • Solid experience with PostgreSQL and query optimization.
  • Familiarity with RESTful APIs, WebSocket, and microservice communication patterns.
  • Knowledge of Git, Docker, CI/CD pipelines, and unit testing frameworks (pytest, unittest).

Nice to Have

  • Familiarity with GPU scheduling or AI inference optimization (ONNX Runtime, TensorRT, etc.).
  • Experience with message queues (RabbitMQ, Kafka, Azure Service Bus).
  • Experience with infrastructure-as-code (Terraform, Bicep, or ARM templates).
  • Exposure to monitoring and logging systems (Prometheus, Grafana, Azure Monitor, ELK).
  • Basic understanding of AI/ML lifecycle, including model deployment, serving, and monitoring.
Why you'll love working here

We are looking for a Senior Backend Engineer with strong Python experience and a solid understanding of AI-driven systems. You will be responsible for designing, developing, and optimizing high-performance backend systems that power large-scale AI applications — such as chatbots, vision-based analytics, and cloud-based inference pipelines.

The ideal candidate has experience with parallel computation, cloud scaling (Azure), and system reliability, ensuring our services remain efficient and responsive even under heavy workloads.

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