QA Engineer

Concord Finance; Ciudad de México; Hybrid; MXN 600,000 - 900,000; Full time

Benefits offered by this job

Grocery Vouchers

Internet Bonus

Medical Insurance

Life Insurance

Dental Insurance

Law Benefits

Job summary

Concord Servicing in Mexico City is seeking a QA Engineer to own testing for the Link platform, focusing on automation, data migrations, and client-facing workflows. You will design and maintain automated tests using Playwright in C#, validate data integrity during migrations, and collaborate with cross-functional teams to ensure quality before client delivery.

The ideal candidate has 4+ years in software QA, hands-on automation with Playwright/Selenium/Cypress, and strong JavaScript/C# SQL

Qualifications

• Experience with Playwright, Selenium, Cypress, or a similar automation tool (required).
• Hands‑on experience using AI tools such as Claude or GitHub Copilot to write, review, and debug tests and code (required).
• 4+ years of experience in software QA, including test automation.
• Working knowledge of C#, SQL, and JavaScript.
• Strong manual and exploratory testing skills.
• Experience with data migration testing, API testing, or GitHub Actions a plus.
• Strong English communication skills (verbal and written).

Responsibilities

• Test new features, changes, and product scripts in Link (payments, fees, installments, deferments, and statements) before they reach clients.
• Build scenario-based tests that verify balances and payment allocations for common and edge-case loan activity.
• Maintain the automated Playwright (C#) test suite and keep the regression suite that runs on every pull request reliable.
• Use AI tools to speed up test creation and debugging, and review AI-generated tests to confirm they catch real problems.
• Write clear bug reports and track defects through to resolution.
• Validate client data migrated from our legacy system into Link.
• Write SQL queries to compare balances, payments, and account details across environments.
• Document test plans and results so business and UAT stakeholders can review them.
• Work with developers, implementation, and configuration teams to understand requirements and changes.
• Review requirements and acceptance criteria early to identify gaps and risks.
• Communicate testing progress, issues, and results clearly to both technical and non-technical stakeholders.

Skills

Playwright

Selenium

Cypress

Claude AI

GitHub Copilot

C#

SQL

JavaScript

Manual testing

Exploratory testing

Data migration testing

API testing

GitHub Actions

English communication

Tools

GitHub Actions

Job description

Concord Servicing is a technology-driven leader in loan administration, payment processing, portfolio analysis, reporting, and delinquency management with decades of industry expertise. As we launch Link—our groundbreaking new platform—we’re building a dedicated in-house QA team to ensure exceptional quality and reliability for our clients. From core platform features to seamless client migrations, our QA function is critical to our platform’s success.

The QA Engineer is a hands‑on technical role responsible for ensuring the quality and reliability of Concord’s Link platform. Reporting to the QA Manager, you’ll test core features and client‑facing workflows, validate data integrity during migrations, design and maintain automated test suites (Playwright framework and regression testing), and collaborate with developers, implementation, and configuration teams to identify and resolve issues before they impact clients. This position plays a key role in delivering a seamless experience to our user base and is essential to Link’s successful adoption.

Responsibilities:

Testing and Automation (Primary Focus)

• Test new features, changes, and product scripts in Link (payments, fees, installments, deferments, and statements) before they reach clients.
• Build scenario-based tests that verify balances and payment allocations for common and edge-case loan activity.
• Maintain the automated Playwright (C#) test suite and keep the regression suite that runs on every pull request reliable.
• Use AI tools to speed up test creation and debugging, and review AI-generated tests to confirm they catch real problems.
• Write clear bug reports and track defects through to resolution.

Client Migrations

• Validate client data migrated from our legacy system into Link.
• Write SQL queries to compare balances, payments, and account details across environments.
• Document test plans and results so business and UAT stakeholders can review them.

Collaboration (Supporting Role)

• Work with developers, implementation, and configuration teams to understand requirements and changes.
• Review requirements and acceptance criteria early to identify gaps and risks.
• Communicate testing progress, issues, and results clearly to both technical and non-technical stakeholders.

• Experience with Playwright, Selenium, Cypress, or a similar automation tool (required).
• Hands‑on experience using AI tools such as Claude or GitHub Copilot to write, review, and debug tests and code (required).
• 4+ years of experience in software QA, including test automation.
• Working knowledge of C#, SQL, and JavaScript.
• Strong manual and exploratory testing skills.
• Experience with data migration testing, API testing, or GitHub Actions a plus.
• Strong English communication skills (verbal and written).

• Grocery Vouchers
• Internet Bonus
• Medical Insurance
• Life Insurance
• Dental Insurance
• Law Benefits