Mission freelance Senior QA/Test Engineer

Job Title: Senior QA/Test Engineer – Digital Signature Portal & Authentication products for a leading provider

Company: Tech Mahindra Luxembourg S.à r.l.

Experience: 7–10 years

Location: Luxembourg – on-site at client office (full-time)

Domain: Digital Signature / e-Signing / Financial Services / Authentication

Role Overview

Tech Mahindra Luxembourg is looking for an experienced Senior QA/Test Engineer to work on a secure digital signature / e-signing portal used by financial institutions and regulated entities. The role is fully on-site at the client office in Luxembourg and involves end-to-end testing of web and API components, integration with identity and signing services, and ensuring high levels of security, reliability and user experience.

You will be the key QA point of contact for this portal, working closely with architects, developers, product owners and business stakeholders.

Key Responsibilities

• Own the QA lifecycle for the digital signature / e-signing portal/Authentication services, from test planning to sign-off.

• Analyse business and technical requirements (user journeys, signing flows, identity verification, audit trails) and derive detailed test scenarios and test cases.

• Design and execute:

  • Functional, regression and integration tests for the web portal and backend services.

  • API testing for signing, identity, notification and audit services (REST/JSON).

  • Cross-browser and cross-device testing for the portal UI.

• Validate end-to-end e-signature flows, including:

  • User authentication and identity verification

  • Document upload, signing and co-signing flows

  • Time-stamping, audit trail and evidence generation

  • Error handling and user notifications

• Collaborate with development teams to reproduce, analyse and track defects; drive defects to closure using standard tools (e.g. JIRA, Azure DevOps).

• Contribute to test automation strategy; design and maintain automated test suites for regression (UI and/or API).

• Perform non-functional testing in collaboration with specialists:

  • Basic performance / load validation of critical flows

  • Basic security checks in line with secure coding and platform guidelines

• Ensure compliance of testing process and artefacts with internal quality standards and applicable regulations (e.g. e-signing, strong authentication).

• Support UAT: prepare test data, guide business testers, consolidate and triage UAT defects.

• Provide clear reporting on test progress, coverage, risks and quality metrics to project managers and stakeholders.

• Mentor junior testers in the project and contribute to continuous improvement of QA practices.