Senior Software Engineer (Python)

About the Role We are seeking an experienced Senior Software Engineer with strong technical expertise, analytical thinking, and the ability to independently deliver high-quality software solutions. You will be responsible for developing and enhancing complex applications, translating business requirements into technical solutions, and ensuring software quality, reliability, and maintainability. The ideal candidate is a hands-on engineer who can navigate complex technical challenges, collaborate effectively with international stakeholders, and support the development of other engineers. Work Location: Onsite in Ho Chi Minh Key Responsibilities Software Development & Technical Design • Design, develop, test, and maintain software applications using Python, Java, and other relevant technologies. • Translate functional and business requirements into clear, scalable technical specifications. • Analyze complex requirements, identify dependencies, and anticipate potential technical challenges. • Develop advanced application features and components while ensuring code quality, performance, and maintainability. • Understand existing application architecture, integration points, and data structures to deliver effective technical solutions. • Evaluate existing code and components for reuse or enhancement before introducing new implementations. • Follow established coding standards, development processes, and software quality guidelines. Problem-Solving & Application Support • Independently investigate complex software defects, identify root causes, and implement sustainable solutions. • Troubleshoot application issues and provide technical support within agreed service expectations. • Identify potential risks affecting functionality, performance, scalability, or delivery timelines. • Communicate technical issues and proposed solutions clearly to both technical and non-technical stakeholders. • Maintain accurate technical documentation, troubleshooting records, and development updates. Collaboration & Technical Mentorship • Collaborate with engineers, technical leads, and business stakeholders to clarify requirements and deliver solutions. • Conduct code reviews and provide constructive feedback to improve engineering quality. • Mentor junior engineers through technical guidance, knowledge sharing, and problem-solving support. • Proactively communicate progress, dependencies, risks, and blockers. • Contribute to continuous improvement of development practices and team effectiveness. Ownership & Delivery • Take ownership of assigned technical deliverables from requirement analysis through implementation, testing, and release support. • Estimate effort, prioritize technical activities, and deliver within agreed timelines. • Work independently with limited supervision while maintaining alignment with the broader engineering team. • Identify opportunities to improve application quality, engineering efficiency, and maintainability. Requirements • At least 5 years of professional software development experience. • Strong hands-on programming experience with Python and/or Java. • Solid understanding of object-oriented programming, algorithms, data structures, and software design principles. • Experience developing, maintaining, and troubleshooting complex software applications. • Ability to translate functional requirements into technical designs and implementation plans. • Good understanding of software architecture, application integration, databases, and system dependencies. • Experience with debugging, automated testing, version control, and code review practices. • Strong analytical thinking, root-cause analysis, and independent problem-solving capabilities. • Ability to manage technical priorities, identify delivery risks, and communicate proactively. • Experience collaborating with cross-functional or international engineering teams. • Willingness to learn and work with unfamiliar programming languages, proprietary systems, and complex enterprise applications. Nice to Have • Experience with SQL, relational databases, and data-intensive applications. • Experience with REST APIs, backend services, and system integration. • Exposure to enterprise software or business-critical applications. • Experience supporting production applications and investigating customer-reported issues. • Experience mentoring junior engineers or conducting technical knowledge-sharing sessions. • Familiarity with Agile/Scrum methodologies. • Experience in healthcare technology, financial services, or other regulated industries. What We Offer • Opportunities to work on challenging international software engineering projects. • Ownership of meaningful technical deliverables and complex engineering challenges. • A collaborative environment that values engineering excellence, accountability, and knowledge sharing. • Opportunities to mentor other engineers and contribute to technical best practices. • Continuous learning and professional development opportunities. • Long-term career growth within a technology-focused organization.