Backend Developer (Java, Golang, NodeJS)

Top 3 reasons to join us

• Go build a great FinTech product
• Go build it on top of the state-of-the-art tech
• Go together with top-of-mind people and team.

Job description

Job Overview

We are an emerging securities firm in Vietnam building next-generation platforms for trading, customer management, and digital services. We are seeking a Backend Developer with experience in distributed systems, microservices, and high-throughput transaction processing to join our core engineering team.

You will be responsible for building and maintaining scalable, maintainable backend services using Golang, Java, or Node.js, in a microservices architecture with Kafka-based event streaming, and apply best practices in performance, code quality, and system design.

This role is ideal for engineers who thrive in building process-driven, rule-based, and event-oriented systems in financial services or other highly structured business domains.

Key Responsibilities

• Develop and maintain backend services using Golang (Fiber/Echo), Java (Spring Boot), or Node.js, following clean architecture principles.
• Build and enhance microservices that interact via APIs and event-driven pipelines using Kafka, designed for scalability and business flexibility.
• Implement business logic based on rule-driven processing and process orchestration, handling both synchronous and asynchronous flows effectively.
• Collaborate with PM, BA, QC and DevOps to ensure deliverables meet business logic, reliability, and maintainability standards.
• Optimize system performance for rule-based workflows, ensuring fast and traceable processing under high-load business scenarios.
• Work with PostgreSQL and Redis to design efficient data models, caching strategies, and maintain transactional integrity.
• Contribute to logging, observability, and monitoring using structured logging and standardized diagnostics.
• Participate in code reviews, technical design discussions, and team knowledge sharing.

Your skills and experience

Must-Have:

• 3+ years of backend development experience using Golang, Java, or Node.js.
• Experience building microservices with strong separation of cellular and reusable components.
• Solid understanding of event-driven architecture using Apache Kafka (or similar).
• Strong experience with PostgreSQL and Redis for persistence and caching.
• Experience working with business rule engines, workflow-based processing, or complex business transaction orchestration.
• Familiarity with RESTful APIs, gRPC, and system integration practices.
• Proficient with Docker and containerized deployment workflows.
• Understanding of asynchronous vs synchronous processing patterns, and when to use each.
• Knowledge of Git, CI/CD practices, and clean code standards.

Nice-to-Have:

• Experience in financial services, securities trading systems, or commission-based platforms.
• Familiarity with KeyCloak or other IAM frameworks.
• Experience with Elixir is a plus.
• Exposure cloud platforms (AWS, GCP) and orchestration tools like Kubernetes.

Soft Skills

• Strong problem-solving skills and logical thinking.
• Clear communicaton and team collaborator.
• Able to work independently with a proactive mindset.
• Passionate about writing clean, maintainable, and testable code.

Why you'll love working here

What We Offer

• Competitive salary and annual performance bonus.
• Full health insurance and annual check-ups.
• Friendly and collaborative working environment with modern tools and workflows.
• Participation in core technology product delivery with real business impact.