Java Technical Lead

One Mount is Vietnam's largest technological ecosystem that creates solutions along the entire value chain, starting with retail, distribution, real estate, and financial services. Our mission is to build Vietnam's most trusted ecosystem, empowering all people and businesses to realize their full potential at the intersection of technology and humanity.

We are looking for experienced Java Technical Lead to join our product team. You will work closely with cross-functional teams to ensure that architecture decisions align with business goals, technological capabilities, and long-term scalability.

Responsibilities

• Design and maintain the technical architecture of assigned products ̣(Finance, Fintech..) and related cloud infrastructure (microservices, event-driven, cloud-native).
• Analyze both functional and non-functional requirements to produce high-quality architecture and solution design documents.
• Evaluate the business impact of technical decisions to ensure scalability, reliability, and security of the product.
• Lead technical improvement initiatives, identify and address technical debt, and drive necessary refactoring activities.
• Explore and apply emerging technologies relevant to the Fintech domain to enhance developer productivity and system performance.
• Collaborate closely with Product Owner, Security, and Engineering teams to align on solution direction and delivery priorities.
• Mentor development teams in applying best practices in software architecture, domain-driven design (DDD), API design, and infrastructure usage.

Qualifications

• Minimum 7 years of hands-on development experience with Java and Spring Boot.
• Proven experience in designing and deploying systems based on Microservices and Event-Driven architectures.
• Solid experience with Message Queue / Streaming systems such as Apache Kafka.
• Strong working knowledge of both Relational Databases (PostgreSQL, MySQL, Oracle) and NoSQL Databases (Elasticsearch, Redis).
• Experience with Hazelcast, Graph Databases (e.g., Neo4j), and Data Streaming is a plus.
• Prior hands-on experience in the FinTech domain (Payment Gateway, E-Wallet, Digital Banking, KYC) is highly preferred.

Benefit and Perks

Salary & Allowances

• 13-month salary with annual performance bonus, project incentives, sales incentives (based on position)
• Lunch allowance: 730.000 VND/month
• Special occasion bonus: 2.500.000VND/year
• Annual leaves: Up to 20 days/year (based on levels)
• Health: Social insurance, premium health insurance, yearly health check
• Laptop, screen and other needed facilities/accounts/tools for work

Career Growth

• Yearly salary review and promotion
• Diverse career path: Management or Expert and functions rotation opportunity
• Free learning sources in Udemy, Coursera, O'relly platforms; internal workshop, certification sponsorship, and exclusive mentoring from C-levels
• Recognition and awards at team and organizational levels.

Working Environment

• Open & collaborative working space foster both individual focus and teamwork activities
• Young, dynamic, and collaborative working atmosphere
• Unwind zones: gaming, table tennis, yoga, gyms, bath rooms, sleep corner.
• Quarterly/yearly teambuilding & engaged internal events.