Software Engineer II (Backend), Growth

Airwallex1 weeks ago

Location

SG - Singapore

Type

Full Time

Salary

SGD 85,000 – 140,000

Level

Mid

Role

Backend Engineer

Posted

Mar 5, 2026

Full TimeMid

The role

Summary

Software Engineer II (Backend) role at Airwallex's Growth team, focusing on building scalable microservices for user acquisition and market expansion. The position requires 2+ years of experience with Java/Kotlin, cloud technologies (GCP/AWS), and distributed systems to support high-traffic, data-driven growth initiatives.

What you'll do

Scalable System Design: Architect, develop, and maintain microservices in Java/Kotlin ensuring high-traffic, high-availability systems meet global user demands

Service Communication Implementation: Implement best practices for service-to-service communication, orchestration, and fault tolerance

Data Pipeline Development: Collaborate with data scientists and product managers to design data pipelines, analytics platforms, and event-driven architectures

Cross-Functional Collaboration: Work closely with Frontend, Product, Design, and Marketing teams to translate business requirements into scalable backend solutions

Code Quality Assurance: Participate in architectural reviews, code reviews, and strategy sessions to elevate quality and performance of backend services

A/B Testing Infrastructure: Develop services that support rapid A/B testing, feature toggles, and real-time performance monitoring

Security Implementation: Integrate secure coding practices and frameworks to protect user data and maintain global regulatory compliance

Performance Optimization: Continuously improve backend functionalities to reduce friction, increase user engagement, and drive conversions

What we look for

Technical

Programming LanguagesStrong experience with Java/Kotlin and JVM-based development

Computer Science FundamentalsSolid understanding of OOP concepts and software engineering principles

Distributed SystemsDeep working experience with high throughput, low latency, high availability distributed systems

Cloud PlatformsCloud experience with GCP (preferred) or AWS including EC2, RDS, ELB, CloudFront

ContainerizationExperience with Docker and Kubernetes for application deployment

Observability ToolsFamiliarity with Splunk, Grafana, and Prometheus for monitoring and analytics

Architecture PatternsExperience with domain-driven design and event-driven architectures

Education

Bachelor's DegreeBachelor degree or above in computer science or engineering related majors

Experience

Engineering Experience2+ years of experience in modern engineering practices focused on continuous integration and quality engineering

Spring FrameworkExperience with Spring/Spring Boot framework development

GTM OperationsExperience solving Go-To-Market operations end-to-end (preferred)

Data AnalyticsKnowledge of data warehousing, customer segmentation, and analytics tools (preferred)

AI/ML IntegrationFamiliarity with building products using AI & LLMs (preferred)

Skills

Required skills

Java/KotlinStrong proficiency in JVM-based programming languages

Microservices ArchitectureExperience designing and building scalable microservices

Cloud PlatformsHands-on experience with GCP or AWS cloud services

Distributed SystemsDeep understanding of high-throughput, low-latency systems

Spring FrameworkExperience with Spring/Spring Boot for enterprise development

Docker & KubernetesContainerization and orchestration experience

ObservabilityExperience with monitoring tools like Splunk, Grafana, Prometheus

Nice to have

Data WarehousingKnowledge of data analytics and warehousing solutions

GTM OperationsEnd-to-end Go-To-Market operational experience

AI/ML IntegrationExperience building products with AI and Large Language Models

Customer SegmentationUnderstanding of customer analytics and segmentation strategies

A/B TestingExperience with experimentation frameworks and feature toggles

Event-Driven ArchitectureAdvanced understanding of event-driven system design

Compensation & benefits

Salary

SGD 85,000 – 140,000 (annual)

Stock options

Available

Benefits

Global Opportunities

Access to 26 offices worldwide with international career advancement opportunities

Learning & Development

Accelerated learning environment with exposure to cutting-edge fintech technologies

Innovation Culture

Work on high-impact projects with founder-like energy and true ownership

AI Integration

Use AI tools to work smarter and solve problems faster

Equal Opportunity

Inclusive workplace valuing diversity and equal opportunity for all employees

Career Growth

Rapid career advancement opportunities in a high-growth fintech unicorn

Interview process

1
Application Review — Initial resume and portfolio review focusing on backend engineering experience and technical skills
2
Phone Screening — 30-45 minute conversation with talent acquisition team covering background and role alignment
3
Technical Assessment — Coding challenge or take-home assignment focusing on Java/Kotlin and system design
4
Technical Interview — In-depth technical discussion covering microservices, distributed systems, and cloud architecture
5
System Design Round — Whiteboard session designing scalable backend systems for high-traffic scenarios
6
Cross-Functional Interview — Discussion with Growth team members focusing on collaboration and product mindset
7
Final Interview — Cultural fit assessment with senior engineering leadership and offer discussion