Application Test Analyst (IT Quality Assurance)

About MixWork & Our Client

MixWork is the premier HR outsourcing partner for strategic workforce solutions, empowering brands and global organizations with skilled, dedicated, and professional top-tier regional teams from South East Asia to accelerate their business growth. On behalf of our client, a premier, household-name retail enterprise headquartered in Singapore with a well-established international footprint and a heritage of quality and operational excellence, we are seeking a dedicated professional to join their team as they actively modernize their omni-channel capabilities, ensuring every system change across their retail platforms is rigorously tested before it reaches their Singapore business users.

Role Summary

Own client’s System Integration Testing (SIT) and quality assurance process across all offshore development work, ensuring that no change reaches the CAB queue or Singapore business UAT without structured, documented testing. The Application Test Analyst is the independent quality gate between the offshore development team and the business: they test what the specialists build, not what the specialists claim works. This role covers functional testing, integration testing, regression testing, defect management, and UAT coordination, and reports testing status directly to the IT Project & Delivery Manager whose CAB gate requires Test Analyst sign-off before any production deployment is approved. This is a sole QA role:

you will be the client’s first and only dedicated tester

, establishing the testing framework, templates and regression library from the ground up, then owning quality end-to-end across every workstream.

Key Responsibilities

Develop test plans and test cases for each sprint release

derived independently from the client’s business requirements, using functional specifications and user stories as input, not as the sole source of expected results, design test scripts covering happy-path scenarios, edge cases, negative tests, and critical integration touchpoints between client’s systems.

Execute system integration testing (SIT) across all client’s platforms:

Shopify Plus (e-commerce flows, checkout, integrations), Power Pages Vendor Portal (vendor workflows, D365 sync, approval routing), D365 F&SCM (financial postings, PO/GRN flows), AWS data pipelines (Bronze, Silver, Gold data completeness and accuracy), Amazon Bedrock AI agents (query accuracy, guardrail behaviour, MCP responses), Cloud & Infrastructure changes, and Cybersecurity configuration changes.

Execute regression testing

before each production release, build and maintain the regression test library from scratch covering previously-passed scenarios to confirm that new changes have not broken existing functionality. Maintain and update the regression test library after each release.

Manage defect lifecycle in Azure DevOps

log all defects with clear reproduction steps, severity classification, and screenshots or log evidence; assign to the relevant specialist; track to resolution; verify fixes and close confirmed defects.

• Produce SIT summary reports for the Delivery Manager before each CAB submission:
• test coverage, pass/fail rates, open defects by severity, and a clear go/no-go recommendation for production deployment.

Coordinate UAT with Singapore business users

prepare UAT test data and scenarios, walk Singapore stakeholders through test scripts, log UAT defects, and track resolution.

Conduct POS deployment testing

validate POS configuration changes in staging/sandbox environments before Singapore IT Infrastructure & Support executes on-site; test end-to-end transaction flows, payment processing, and integration with loyalty and financial systems.

Test API integrations between client’s systems

• use Postman or equivalent to validate request/response behaviour for key integration points.
• Support performance and load testing for customer-facing systems (e-commerce storefront) ahead of peak trading periods:
• coordinate tooling, execute test runs, and report results to the Delivery Manager.

Maintain test environment hygiene

coordinate with the Cloud & Infrastructure Engineer to ensure staging environments are refreshed with appropriately masked data; confirm no production PII is used in test environments.

Manage testing across multiple concurrent projects

(ERP go-live, data platform, e-commerce, AI and store technology), prioritising effort against fixed deadlines and flagging capacity risks early.

Required Qualifications & Experience

Minimum 4 years of software testing or QA experience, with at least 2 years in a retail, e-commerce, or enterprise application testing context.

Demonstrable experience executing SIT and regression testing across integrated multi-system environments, not just single-application testing.

Experience writing structured test cases and test scripts from functional specifications or user stories.

Experience managing defects through a full lifecycle in a defect tracking tool (Azure DevOps, Jira, or equivalent); able to write clear, reproducible defect reports.

Experience introducing or improving testing processes or automation.

English proficiency at B2 minimum (IELTS 6.0), written and spoken. Must be able to write clear UAT packs in plain business English for Singapore stakeholders.

Demonstrated independence and rigour: does not sign off on testing because a developer says it works; independently verifies all claims; proactively identifies integration risk areas that developers may have missed.

• Proven experience as a sole or first QA hire, or independently covering two or more major projects in parallel.
• Able to design meaningful tests where hardware, environments or access are not yet available (e.g. simulated data, mocks, staged scenarios).
• Technical Proficiency

Azure DevOps Test Plans

test case authoring, test suite management, defect tracking, test run execution and SIT summary reporting.

API testing

Postman or equivalent, able to construct and execute API requests to validate integration endpoints.

SQL

ability to write validation queries against client’s databases and AWS Athena Gold layer to verify data integrity after pipeline runs or system changes.

Browser-based testing

Chrome DevTools, network inspection, and console log review for e-commerce and Vendor Portal front-end defects.

Basic understanding of CI/CD pipelines

sufficient to identify which build or deployment introduced a defect and communicate clearly to the Delivery Manager.

Microsoft Teams and SharePoint

• defect communication, test artefact storage, and UAT coordination with Singapore business users.
• Nice to Have
• ISTQB Advanced Test Analyst certification.
• Performance testing tools (JMeter or k6) for e-commerce load testing.
• Test automation fundamentals (Selenium, Playwright, or Cypress), for future automation of regression suites.
• Retail domain knowledge: POS transaction flows, loyalty programme mechanics, ERP financial posting logic.
• Experience testing ERP or financial system integrations (D365 or equivalent).
• Experience testing e-commerce platforms (Shopify or equivalent).
• Familiarity with Power Platform application testing.
• Performance or load testing experience (k6, JMeter, or equivalent) for pre-peak readiness testing.
• Statutory Provisions & Compliance

Full Legal Compliance

Official employment contract managed under MixWork Indonesia, ensuring complete adherence to local labor laws and employment standards.

Healthcare & Social Security

Full registration and contributions for both BPJS Kesehatan and BPJS Ketenagakerjaan to ensure comprehensive coverage.

Religious Holiday Allowance

• Guaranteed annual mandatory Religious Holiday Allowance (THR) paid in accordance with statutory government regulations.
• What We Offer

Flexible Medical Benefit

Comprehensive healthcare coverage fully inclusive of dental, optical, outpatient care, and wellness treatments to support your overall well-being.

Daily Allowances

Competitive transportation and meal allowances to support your operational needs.

Regional Ecosystem

Access to ongoing global corporate alignment, dedicated HR support, and a stable, creative career trajectory with a premier international brand.

• Important Notes
• This is a hands-on individual contributor role.
• Language Requirement: As this is an international role, please note that all screenings and interviews will be
• conducted exclusively in English

Equal Opportunity Employer: MixWork is committed to creating an inclusive, diverse, and fair workplace culture. We value talent and capability above all else, completely free from discrimination or bias.