Lead / Principal Test Development Engineer (Contract)

We are seeking a highly skilled Lead / Principal Test Development Engineers to drive quality engineering, test automation, platform reliability, and performance validation for our next-generation FinTech platforms.

The ideal candidate will have hands-on experience working in both China and Singapore, collaborating with multinational engineering, product, and business teams across different time zones and cultures. You will play a critical role in ensuring the quality, scalability, security, and reliability of high-transaction financial systems, e-commerce platforms, cloud-native applications, and digital payment solutions.

As a senior individual contributor, you will lead testing strategy and technical innovation while partnering closely with Software Engineering, Product Management, Data Engineering, DevOps, Security, and Business stakeholders.

Key Responsibilities

Test Strategy & Leadership

Define and drive the overall test strategy for enterprise-scale FinTech products and services.

Establish quality standards, testing frameworks, release governance, and best practices across multiple development teams.

Act as a technical leader and mentor for Quality Engineering and Automation Engineers.

Collaborate with geographically distributed teams across Singapore, China, and other global locations.

Test Development & Automation

Design, develop, and maintain scalable automated testing frameworks for:

Web applications

Mobile applications

APIs and microservices

Event-driven systems

Cloud-native platforms

Lead automation initiatives using Python or Java-based testing frameworks.

Implement CI/CD quality gates and continuous testing practices.

Drive automated regression, integration, end-to-end, and system testing.

E-Commerce & FinTech Platform Testing

Validate business-critical workflows including:

Customer onboarding

Payment processing

Digital wallets

Merchant services

Lending platforms

Rewards and loyalty systems

Order management and transaction processing

Ensure accuracy of financial calculations, settlement processes, reconciliation engines, and reporting services.

Verify system compliance with security, audit, and regulatory requirements.

Cloud & Distributed Systems Testing

Design testing solutions for cloud-native applications deployed on AWS, Azure, Alibaba Cloud, Tencent Cloud, or Google Cloud.

Validate highly scalable microservices and distributed architectures.

Test containerized environments utilizing Docker and Kubernetes.

Support resilience, failover, disaster recovery, and platform reliability testing.

Performance & Reliability Engineering

Design and execute:

Performance testing

Load testing

Stress testing

Scalability testing

Capacity planning exercises

Analyze bottlenecks and work with engineering teams to improve platform responsiveness and throughput.

Develop performance monitoring dashboards and test reporting solutions.

Data & API Quality

Validate data quality across transactional and analytical systems.

Design API testing strategies covering:

Functional testing

Security testing

Integration testing

Contract testing

Ensure consistency and integrity of data across multiple systems and services.

Production Quality & Incident Management

Support root cause analysis for production incidents.

Drive defect prevention initiatives and continuous quality improvement.

Develop quality metrics, KPIs, and engineering dashboards.

Improve production stability through proactive testing and monitoring.

Requirements

Bachelor's Degree or higher in Computer Science, Software Engineering, Information Technology, Computer Engineering, Related disciplines

5-10 years of experience in software testing, quality engineering, or test development.

Proven experience working onsite in both China & Singapore

Demonstrated experience collaborating with multinational and cross-functional teams.

Experience in China FinTech, E-commerce, Digital Payments, Banking Technology, or SaaS platforms.

Experience supporting large-scale China e-commerce platforms with high concurrent transactions.

Experience testing payment gateways, digital wallets, lending products, or trading platforms.

Experience with cloud-native architectures and microservices.

Working knowledge of Kafka, event streaming, and distributed messaging systems.

Exposure to security testing and financial regulatory requirements.

Experience working within multicultural Chinese and Singaporean engineering environments.

Mandarin language proficiency to effectively collaborate with China-based teams and stakeholders.

Technical Skills

Test Automation

Python, Java, or JavaScript

Selenium, Playwright, Cypress, or equivalent

API testing frameworks

BDD/TDD methodologies

Cloud Technologies

AWS, Azure, Alibaba Cloud, Tencent Cloud, or GCP

Docker

Kubernetes

CI/CD pipelines

Performance Testing

JMeter

K6

Gatling

LoadRunner (optional)

Database & Data Validation

SQL

PostgreSQL

MySQL

MongoDB

Redis

Modern Engineering Practices

Git

Jenkins

GitLab CI/CD

Agile/Scrum

DevOps practices

What Success Looks Like

In this role, you will:

Manage quality engineering initiatives across multiple FinTech products.

Build scalable automation frameworks that accelerate software delivery.

Improve platform reliability, performance, and customer experience.

Partner effectively with engineering teams across China and Singapore.

Ensure the successful release of secure, resilient, and high-performing financial platforms.

Become a trusted technical advisor for quality engineering and test strategy across the organization.

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