Software Engineer, Quality at Airwallex in SG - Singapore

Job description

• Application
• We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role-related expertise and sharp thinking, and you’re motivated by our mission and operating principles. You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor.
• You're humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end-to-end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next.
• As the first SDET on the Risk Platform team, you'll help the whole risk team decide and define what quality means for risk-critical systems — the standards, practices, and quality gates everyone builds around. You're an engineer first: you build the automation, tooling, and infrastructure that let us ship changes to these systems quickly and safely.

Responsibilities

• Design, build, and maintain end-to-end and regression automation across the risk decisioning flows — onboarding (KYC/KYB, merchant risk), transaction scoring, and screening — and wire the suites into CI/CD so regressions are caught before release.
• Establish stable, reproducible test data and isolated environments, including realistic fraud, screening, and jurisdiction scenarios, so automation stays deterministic and trustworthy.
• Introduce and own contract testing between the Risk Platform and its upstream and downstream services to catch integration breakages early.
• Build jurisdiction-specific coverage that validates regional rules, thresholds, and regulatory requirements.
• Define and enforce release-quality gates, and design post-release verification (smoke tests, monitoring-backed checks) to confirm risk systems behave correctly in production.
• Own testing and release acceptance for major client-facing projects, end to end, partnering with engineering and product on acceptance criteria.
• Champion testability and quality across the team, and mentor engineers on test design and automation.

Requirements

• We're looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.
• Experience as an SDET / Software Engineer in Test, with strong programming skills and a track record of building test frameworks — not just writing test cases.
• Solid experience testing large-scale distributed backend systems: REST APIs, message-driven flows, and service-to-service integrations.
• Hands-on experience with API and E2E automation and CI/CD; experience with contract testing and managing test data and environments, or the ability to build these from the ground up.
• A strong sense of what makes tests reliable: deterministic data, isolated environments, and fast feedback.
• Use AI to accelerate testing — LLM-assisted test generation, coverage analysis, and failure triage — and help define how we test the team's ML models and LLM agents (evaluation, regression, and guardrails).
• Comfort working in a self-directed, Agile team, with excellent written and verbal communication.
• Exposure to risk, fraud, payments, compliance, or other regulated financial domains.
• Experience testing systems with jurisdiction- or region-specific behaviour.
• Experience with contract testing tools (e.g. Pact) and building test-data / environment tooling from the ground up.
• Experience using AI/LLM tools in the testing workflow, or testing ML- or LLM-based systems (evaluation harnesses, non-deterministic outputs).
• Performance and latency testing for systems on the critical path.

Skills

Required

• SDET / Software Engineer in Test
• Strong programming skills
• Building test frameworks
• REST APIs
• Message-driven flows
• Service-to-service integrations
• API automation
• E2E automation
• CI/CD
• Contract testing
• Managing test data and environments
• Deterministic data

Preferred

• Contract testing tools (e.g. Pact)
• Building test-data / environment tooling
• AI/LLM tools in testing workflow
• Testing ML- or LLM-based systems
• Performance and latency testing

Benefits

• Industry-leading salaries, plus equity for every employee.
• Access to our mental wellness platform, including coaching and EAP sessions.
• A paid day off on your birthday, generous parental leave, and paid volunteer leave.