We're looking for a Nearshore Senior QA Engineer to own quality across a modern full-stack lending platform and to own the automation framework it runs on. This isn't a checkbox QA role: you're embedded in the squad, shifting left, catching issues early, and building the test infrastructure that lets the team ship with confidence. Real ownership from day one on a high-visibility engagement.

This is an automation-first seat: if you've only maintained someone else's test scripts, this probably isn't the right fit.

The platform includes a Next.js frontend, C#/.NET backend services, REST APIs, PostgreSQL and SQL Server data environments, and a network of third-party lending integrations.

Key Responsibilities

Test Strategy & Ownership

- Own the end-to-end QA strategy across the full-stack platform: frontend (Next.js), backend (C#/.NET), APIs, databases, and integrations
- Design, build, and maintain automated test suites covering functional, regression, integration, and E2E scenarios
- Build or substantially extend automation frameworks; this isn't a "maintain what's already there" seat
- Define and enforce automated quality gates across the CI/CD pipeline: nothing ships without passing the bar you set
- Own test environments, test data management, and QA documentation.

API, Integration, and Data Testing

- Lead QA coverage across critical third-party integrations: credit bureaus (Experian, Equifax, TransUnion), dealer systems (DealerTrack, RouteOne), fraud and verification providers
- Validate REST API contracts, retry logic, idempotency, and edge case handling
- Query and validate application and integration data at the database level using PostgreSQL or SQL Server
- Test DEFI Solutions loan origination workflows: scorecards, rules, decision flows, and operational data.

Collaboration & Process

- Embed directly with engineers and product: participating in sprint planning, story grooming, and design reviews to catch issues before a line of code is written




- Partner with the Tech Lead to align QA practices with overall engineering standards
- Serve as the quality voice in the room: advocate for the end user and the integrity of the platform
- Bridge between nearshore squad and US-based stakeholders: strong English communication required.

Tooling & Automation

- Build and execute UI and web automation using Playwright or Cypress
- Develop and maintain automated test suites using NUnit
- Leverage AI-assisted development tools (Claude and GitHub Copilot) to accelerate coverage, test case generation, and analysis
- Own the automation stack end-to-end, from framework design to CI/CD integration.

Must-Haves

- 5+ years of QA engineering experience in a fast-paced, agile environment
- Strong hands-on experience building an executing UI/Web automation tests with Playwright or Cypress
- NUnit Framework: Experience developing and maintaining automated test suites using NUnit
- API testing proficiency: Postman, REST Assured, or similar
- Experience testing complex integrations and third-party vendor systems
- SQL proficiency: ability to query and validate data at the database level (PostgreSQL or SQL Server)
- Cloud familiarity: AWS or Azure, plus containerized deployments
- AI-assisted development experience: hands-on with both Claude and GitHub Copilot
- Strong understanding of software testing methodologies and QA best practices
- Ability to collaborate closely with engineers, product managers, and business stakeholders
- Strong analytical and troubleshooting skills
- Strong English communication for daily standups and US stakeholder collaboration

Nice-to-Haves

- Experience building an automation framework from the ground up
- Experience testing Loan Origination Systems (DEFI Solutions or equivalent)
- Auto finance, lending, or regulated-industry background
- Performance and load testing experience
- Experience with CI/CD pipelines: GitHub Actions, Jenkins, or similar
- Experience with Selenium or another browser automation framework, in addition to Playwright/Cypress

📌 Quality Assurance Automation Engineer (México)
🏢 Tential Solutions
📍 México