Engineering Lead, Growth

Airwallex Pty Ltd.; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

Airwallex Pty Ltd. is seeking a Senior Backend Engineer in Singapore to shape the technical strategy and architecture for scalable growth. The ideal candidate should have at least 8 years of backend engineering experience, proficiency in modern JVM ecosystems like Java and Kotlin, and strong expertise in microservices architecture and cloud services. The role focuses on optimizing user experiences and improving operational efficiencies through high-quality, secure systems, making a significant impact in our global expansion efforts.

Qualifications

• 8+ years of backend engineering experience in distributed systems.
• Proficiency in modern JVM ecosystems and multi-threading.
• Expert knowledge of design patterns and microservices architecture.
• Hands-on experience with cloud services and observability tools.
• Experience building API-and integration-heavy systems.

Responsibilities

• Define and execute technical strategies and product roadmaps.
• Own the technical strategy and architecture for services and APIs.
• Ensure architectural ownership and system quality across services.
• Establish operational excellence for production systems.

Skills

Backend engineering

Distributed systems

Java 17+

Kotlin

Spring / Spring Boot

Microservices architecture

GCP/AWS

Docker

Kubernetes

Data analytics

Tools

Splunk

Grafana

Prometheus

Job description

The Opportunity

Our Growth Team sits at the heart of Airwallex’s mission, focusing on user acquisition and strategic market expansion. We leverage data and cutting‑edge technologies to craft seamless, intuitive experiences that help millions of users discover, engage with, and benefit from our products.

From new‑user funnels to onboarding optimizations, our Growth team is all about experimentation, rapid iteration, and driving sustainable business impact. Whether it’s designing scalable architectures for high‑traffic pages, building robust A/B testing frameworks, or integrating global marketing platforms, the Growth team’s contributions directly shape how we attract and retain customers worldwide.

Joining the Growth team means you’ll have a front‑row seat to the most crucial stage of our product lifecycle and play a pivotal role in fueling the next wave of our global expansion.

What You’ll Do

Technical Strategy & Product Execution

• Partner with Product and Design to define roadmap, scope, and success metrics; translate customer needs into an executable plan.

• Work closely with product managers and key stakeholders to define product roadmap, prioritize projects and ship incrementally to production.

• Engage with the Product Manager into building a backlog that continuously contributes to the execution of the roadmap.

• Drive strong delivery practices: planning, prioritisation, execution, and continuous improvement.

• Own the technical strategy and architecture for services and APIs, with a focus on scalability, reliability, security, and maintainability.

• Stay hands‑on where it matters: guide design reviews, de‑risk complex initiatives, and raise the bar on engineering quality.

Architectural Ownership & Quality

• Serve as the accountable owner for the architecture and system quality across our services.

• Analyze and validate the technique design for the software functions from the team.

• Review code from team members and ensure the standards.

• Drive design and code quality: institute standards, reviews, and automated checks that raise the bar without slowing teams down.

• Guide the evolution of application and platform infrastructure to reduce operational overhead and improve developer productivity.

• Establish operational excellence for production systems (monitoring, incident response, postmortems, reliability improvements), and ensure auditability/traceability is built in.

• Champion secure coding practices, robust authentication/authorization, and proactive vulnerability management.

Who You Are

• 8+ years of backend engineering experience with a deep foundation in distributed systems, high‑availability architectures, and designing for availability/consistency challenges.

• Proficiency in modern JVM ecosystems (Java 17+, Kotlin, Spring / Spring Boot) including multi‑threading, high concurrency, IO/NIO, and network communication.

• Expert knowledge of design patterns, microservices architecture, and event‑driven/streaming systems (e.g., Kafka).

• Hands‑on experience with GCP/AWS, Docker, and Kubernetes, combined with a strong grasp of observability tools like Splunk, Grafana, and Prometheus.

• Experience in developing large‑scale system control interfaces and a track record of building API‑and integration‑heavy systems in production.

• You take initiative and skillfully navigate complex technical challenges to deliver impactful results.

Preferred Qualifications / What Will Set You Apart

• Experience building scalable growth features (referral systems, dynamic funnels) with a focus on reducing "Time-to-Value."

• Background in A/B testing frameworks and using data analytics to optimize customer onboarding and conversion.

• Familiarity with building products using AI & LLMs (e.g., personalization or intelligent self‑serve tools).

• Polyglot experience with other modern languages such as Scala, Javascript, Python, or Golang.

Minimum Qualifications

• 5+ years of backend engineering experience

• Proficiency in modern JVM ecosystems

• Knowledge of design patterns, microservices architecture, and event‑driven/streaming systems

• Hands‑on experience with cloud services and observability tool

• Experience in developing large‑scale system API‑and integration‑heavy systems in production.

Equal opportunity

Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.