Python Technical Lead

Salary: Upto 2,500 USD

Location: Hanoi

Job Description

• Lead team, design architect, develop, execute, deliver and maintain large software system development and maintenance projects;
• Lead technical skills an Agile Software Development inhouse team that is comprised of for members: coaching, review code, guide...;
• Ensure that Software Development team adheres to and contributes to the defined processes while still being able to deliver efficiently;

·      Deliver high-quality, secure, scalable and maintainable production software.

Required qualifications

·      Bachelor's or master's degree in information technology, Computer Science or related fields.

Required working experience

Core Python Expertise

• Proficient in async/await, asyncio, and concurrent programming patterns
• Strong knowledge of Python's memory management and garbage collection
• Hands-on experience with Stream API, Lambda expressions, and Functional Interfaces.
• Proficient in Python frameworks such as Django, FastAPI or Flask.
• Backend & API Development
• Skilled in designing complex REST APIs (including pagination, rate limiting, and filtering).
• Experience with Celery for task queues
• Knowledge of API monitoring, caching strategies, and load balancing
• Understanding of GraphQL is a plus

Database

• Strong command of SQL: complex queries, subqueries, views, indexes, and query optimization
• Solid understanding of ACID properties
• Ability to optimize SQL queries and explain transaction mechanisms (purpose and behavior)
• Hands-on experience with at least one NoSQL database (MongoDB, Redis, Cassandra, etc.)
• Proficient in ORM frameworks (SQLAlchemy, Django ORM)
• Experience with database migrations and schema design
• Cloud & Infrastructure
• Experience working with at least one major cloud provider (AWS, GCP, or Azure).
• Basic understanding of EC2 (AWS) or equivalent services on GCP/Azure.
• Knowledge of object storage concepts (e.g., AWS S3).
• Proficient in Docker and containerization concepts
• Basic understanding of Kubernetes is a plus.

Message Queues & Caching

• Experience with Redis for caching and session management
• Hands-on experience with message brokers (Kafka, RabbitMQ, or AWS SQS)
• Software Architecture & Design
• Strong grasp of SOLID principles and software design best practices.
• Proficient in common design patterns (Factory, Singleton, Observer, Strategy, Proxy, Visitor, etc.)
• Understanding of TDD/BDD principles
• Good knowledge of microservices architecture and inter-service communication.
• Ability to create UML diagrams and system architecture documentation

Security

• Understanding of common vulnerabilities (OWASP Top 10: XSS, CSRF, SQL Injection, etc.)
• Knowledge of authentication/authorization mechanisms (JWT, OAuth2)
• Familiar with application access control models (RBAC, ABAC).
• Experience implementing secure API practices

Testing

• Strong experience writing unit tests with pytest
• Knowledge of integration testing and end-to-end testing
• Familiar with test coverage tools

DevOps & Monitoring

• Experience with CI/CD pipelines (GitLab CI, Jenkins, GitHub Actions)
• Ability to analyze and trace logs effectively (e.g., CloudWatch, /var/log) for troubleshooting.
• Understanding of application monitoring and alerting (Prometheus, Grafana, Datadog)

Networking

• Strong understanding of networking concepts (IP, CIDR, NAT, OSI model)
• Understanding of load balancers and reverse proxies (Nginx, HAProxy)

Version Control

• Proficient with Git and Git workflows
• Experience with code review processes

Nice to have

• Frontend knowledge , React, or Angular) for full-stack collaboration
• Experience with AI/ML frameworks (TensorFlow, PyTorch, scikit-learn)
• Knowledge of data processing libraries (Pandas, NumPy)

Required Languages:

·      English proficiency in verbal and written.

Required knowledge and skills

·      
• Experience mentoring junior and mid-level developers.

·       Strong analytical and problem-solving skills.

·      Clear and effective communication and teamwork abilities.

·      Experience in team management and task coordination.

·      Skilled in issue analysis, system design, and reporting.

·      Ability to present system designs and technical solutions to clients.

·      Passion for researching and implementing new technologies