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• Take ownership of leading engineering teams while designing system architecture, implementing solutions, and overseeing delivery and long-term maintenance of large-scale software systems.
• Provide technical leadership within an Agile in-house development team through mentoring, code reviews, technical guidance, and best practices sharing.
• Ensure the development team strictly follows defined engineering processes while continuously improving efficiency and delivery quality.
• Build and maintain production-ready software that is secure, scalable, reliable, and easy to maintain.

Requirements

Python & Core Programming

• Advanced proficiency in Python with strong understanding of asynchronous, concurrent, and async/await programming models.
• Deep knowledge of Python memory handling, garbage collection, and performance optimization.
• Practical experience working with Stream APIs, Lambda expressions, and functional programming concepts.
• Hands-on expertise with Python frameworks such as Django, FastAPI, or Flask.

Backend & API Engineering

• Proven experience designing and implementing complex RESTful APIs, including pagination, filtering, and rate-limiting.
• Experience working with background task processing using Celery.
• Familiarity with API monitoring, caching mechanisms, and load-balancing strategies.
• Understanding of GraphQL is considered an added advantage.

Database Systems

• Strong SQL skills covering advanced queries, subqueries, indexing, views, and query performance tuning.
• Solid understanding of ACID principles and transactional behavior.
• Ability to optimize SQL queries and clearly explain transaction workflows.
• Experience with at least one NoSQL database such as MongoDB, Redis, or Cassandra.
• Proficiency in ORM tools like SQLAlchemy or Django ORM.
• Hands-on experience with schema design and database migration processes.

Cloud & Infrastructure

• Experience working with one or more major cloud platforms (AWS, GCP, or Azure).
• Basic knowledge of virtual compute services such as AWS EC2 or equivalent offerings.
• Understanding of object storage concepts (e.g., Amazon S3).
• Strong experience with Docker and container-based deployment.
• Familiarity with Kubernetes is a plus.

Messaging & Caching

• Practical experience using Redis for caching strategies and session management.
• Hands-on exposure to message queue systems such as Kafka, RabbitMQ, or AWS SQS.

Architecture & System Design

• Strong grasp of SOLID principles and modern software design best practices.
• Experience applying common design patterns (Factory, Singleton, Observer, Strategy, Proxy, Visitor, etc.).
• Understanding of TDD/BDD methodologies.
• Solid knowledge of microservices architecture and inter-service communication.
• Ability to create UML diagrams and produce clear system architecture documentation.

Security Knowledge

• Awareness of common security threats and vulnerabilities (OWASP Top 10: XSS, CSRF, SQL Injection, etc.).
• Experience implementing authentication and authorization mechanisms (JWT, OAuth2).
• Familiarity with access control models such as RBAC and ABAC.
• Practical experience designing secure APIs.

Testing & Quality Assurance

• Strong experience writing unit tests using pytest.
• Knowledge of integration testing and end-to-end testing approaches.
• Familiarity with test coverage and quality measurement tools.

DevOps & Monitoring

• Experience working with CI/CD pipelines (GitLab CI, Jenkins, GitHub Actions).
• Ability to investigate logs and troubleshoot issues efficiently (e.g., CloudWatch, system logs).
• Understanding of monitoring, alerting, and observability tools such as Prometheus, Grafana, or Datadog.

Networking & Version Control

• Solid understanding of networking fundamentals (IP addressing, CIDR, NAT, OSI model).
• Knowledge of load balancers and reverse proxies such as Nginx or HAProxy.
• Strong proficiency in Git and collaborative Git workflows.
• Experience participating in structured code review processes.

• Working time: 8:30 AM – 5:30 PM (Mon–Fri)
• Professional, modern, and dynamic working environment
• Challenging projects with cutting-edge technologies
• Open culture encouraging idea sharing and innovation
• Annual recognition & rewards for outstanding performance
• Support for professional certifications (1–5 million VND)
• Some advanced certifications fully covered (study + exam)
• Salary review 1–2 times/year (flexible based on performance)
• 13th-month salary & holiday bonuses
• Company trips, team building activities
• Full social insurance & annual health check at reputable hospitals
• Personal & family care policies (birthday, marriage, childbirth, illness, etc.)
• Sports & cultural activities
• Learning & training awards
• Opportunity to be featured in annual case studies