Senior Python Developer / Python Tech Lead

ResponsibilitiesWe are looking for an experienced Senior Python Developer/ Python Tech Lead with 6–10+ years of hands-on experience to join our engineering team. The ideal candidate has deep expertise in Python and SQL, strong experience with AWS cloud services, and a proven background in building automation and backend systems. This role requires onsite work at our offices in Hanoi or Ho Chi Minh City from Monday to Friday and involves a high level of technical ownership and collaboration across teams.Main responsibilities:Lead day-to-day Python development activities, ensuring clean, efficient, and maintainable code.Design, develop, and maintain robust backend services and Python-based automation solutions.Architect, write, and optimize complex SQL queries for high-performance data processing and analysis.Review code, enforce coding standards, and mentor junior and mid-level developers.Use Postman to validate, test, and troubleshoot APIs and integrations.Leverage AWS cloud services to design, deploy, and manage scalable, secure, and reliable applications.Collaborate closely with cross-functional teams (Product, QA, DevOps) to deliver cloud-based solutions.Troubleshoot and resolve complex technical issues related to applications, databases, and cloud infrastructure.Proactively evaluate and introduce new technologies to improve system performance, scalability, and maintainability.Successfully complete advanced technical coding and algorithm assessments (e.g., Codility) using Python.