QA Engineer

HackerTrail; Singapore; On-site; SGD 90,000 - 140,000; Full time

Benefits offered by this job

Ownership in role

Modern stack

APAC exposure

Job summary

OneByZero is seeking a QA Engineer to own automated testing across our Neo platform, shaping test strategy and release quality. This is an automation-first, hands-on role where you will write code daily and influence how we ship.

You will design and maintain deterministic automated tests across API/integration, end-to-end UI, regression, and load testing, build scalable API test suites with Jest/TypeScript, Playwright, and work within CI/CD pipelines.

Qualifications

• 5+ years in automated QA, ideally in SDET or QA ownership role.
• Hands-on coding in TypeScript and/or Python; test estate is code-driven and CI-gated.
• Deep API/integration testing of microservices using code-based frameworks.

Responsibilities

• Own QA end-to-end for key product areas; define test strategy and automation.
• Design and maintain deterministic automated tests across API/integration, UI, regression, and load.
• Build and scale API integration test suites against live microservices.
• Convert manual tests into automated regression coverage and keep CI green.
• Run load and performance tests (k6) and report on SLOs.

Skills

Automated QA

TypeScript

Python

API testing

Jest

Playwright

Selenium

CI/CD

Load testing

Docker

Git

Tools

Jest/Supertest

pytest

REST Assured

Playwright

Selenium

k6

CI/CD pipelines

Docker

Job description

About the role

Job Description About the role OneByZero builds Neo, an enterprise agentic platform for creating and deploying AI agents across chat, voice, and messaging channels for major banks, telcos across APAC. We're hiring a QA Engineer to own automated testing across our product suite and build reliable test coverage for the NEO platform. This is an automation-first, hands-on testing role. You'll write code every day, own quality end-to-end for major product surfaces, and have real influence over how we ship. What you'll do Own QA end-to-end for key product areas define the test strategy, build the automation, and be accountable for release quality. Design and maintain deterministic, reliable automated tests across the pyramid: API/integration, end-to-end UI, regression, and load. Build and scale our API integration test suites (Jest/TypeScript over live HTTP) against live microservices covering auth, contracts, data lifecycle, and error paths. Convert our existing manual test suite into automated regression coverage and keep CI green. Run load and performance testing (k6) modeling scenarios, defining SLOs, and reporting on results. Integrate tests into CI/CD (GitHub Actions), manage flaky tests, and improve reporting and gating. Partner with engineering to catch issues early and raise the quality bar across the team.

What you'll bring

Requirements What we're looking for 5+ years in automated QA, ideally in an SDET or QA-ownership capacity. Strong hands-on coding in TypeScript and/or Python our entire test estate is code, version-controlled, and CI-gated. Proven depth in API/integration testing of microservices using a code-based framework Jest/Supertest, pytest, REST Assured, or similar (REST; bonus for GraphQL and contract testing). Solid experience with E2E UI automation (Playwright / Selenium) and a track record of building stable, deterministic suites. Experience owning a regression suite selection, maintenance, and triage. Load/performance testing experience (k6). Comfortable with CI/CD pipelines, Docker, and Git-based workflows. Demonstrated ownership and agency you've led QA for real software (API, UI, integrations, regression, load) rather than just executing test plans. Background in enterprise software or a cloud/SaaS startup selling to enterprises.

Benefits and perks

Benefits Why OneByZero Build at the frontier of enterprise agentic AI serving large customers across APAC markets. High ownership and direct impact on how a fast-growing platform ships. Work with a modern stack: TypeScript (Next.js, tRPC), Python microservices, AWS, and a mature automated-testing culture.