12 hours ago
Remote, VietnamSenior
Responsibilities
- Design, create, maintain, and optimize applications using Spring Boot, React, and the Microsoft/Java technology stack.
- Translate business requirements into secure, scalable, and functional technical solutions.
- Build and maintain REST APIs, messaging integrations, queues, and asynchronous event-driven systems.
- Design and migrate MySQL and PostgreSQL schemas while optimizing queries and database performance.
- Participate in Terraform infrastructure-as-code efforts and deploy applications across AWS environments.
- Secure APIs using OAuth2, Spring Security, JWT, and policy-based authorization.
- Write and maintain unit and integration tests using JUnit, Mockito, or similar frameworks.
- Support CI/CD, OpenTelemetry, distributed tracing, metrics, logging, and application observability.
- Maintain, upgrade, and refactor existing codebases to improve efficiency and performance.
- Collaborate with product, QA, business analysts, US-based stakeholders, and distributed engineering teams.
- Mentor peers, conduct technical research and internal training, investigate production issues, and support continuous improvement.
- Prepare implementation plans, document test results, participate in code reviews and Agile sprints, and perform other assigned duties.
Requirements
- At least 6 years of hands-on experience with Java and Spring Boot, including MVC and/or WebFlux/Reactor.
- Strong experience with React, REST APIs, HTML5, CSS3, and Bootstrap-based responsive interfaces.
- Experience with MySQL and PostgreSQL schema design, migrations, query optimization, and performance tuning.
- Experience with messaging systems such as RabbitMQ, AWS SQS, or AWS SNS and event-driven patterns.
- Practical experience with AWS Lambda, ECS, S3, RDS, and SSM.
- Knowledge of OAuth2, Spring Security, JWT, and policy-based authorization.
- Testing experience with JUnit, Mockito, or similar frameworks.
- Strong understanding of performance, security, best practices, and design patterns.
- Experience with web services; WCF or .NET familiarity is a plus.
- Bachelor’s degree in Computer Science, Information Systems, or a related field, or equivalent experience.
- Preferred qualifications include fintech or payments knowledge, Terraform and multi-environment infrastructure experience, reactive programming with Mono/Flux, OpenTelemetry and distributed tracing, multi-tier distributed applications, Agile/Scrum experience, and strong communication skills.
Benefits
- Full salary during probation and complete social insurance coverage.
- Comprehensive health insurance for the employee and eligible spouse and children.
- Monthly childcare support.
- 15 days of annual leave, 6 weeks of paternity leave, and 10 days of bereavement leave.
- Access to Football, Billiards, Badminton, and E-sports clubs.
- Full-time, Monday-to-Friday schedule; remote work is available for candidates living in Vietnam.
Tech Stack
Categories
About Aperia
Aperia builds SaaS platforms and custom software for the payments and banking ecosystem, combining business intelligence, risk management, PCI/compliance, and customer intelligence with data management and ETL services. It sells to banks, processors, payment facilitators, merchant service providers, independent sales organizations, and government entities. The privately held company is headquartered in Dallas, Texas, with offices in Washington, DC and Vietnam.