# Senior QA Engineer

> Creditstar · Tallinn, Estonia (Hybrid) · Full-time · Posted 2026-05-18

**Workplace:** hybrid

**Department:** Engineering

## Description

**Creditstar Group** is a rapidly growing international consumer finance company, headquartered in Tallinn, Estonia and operating in multiple European markets.

At the core, we are a financial technology company that uses automated processes, algorithms and data analysis to make financial instruments easily available to a population of more than 175 million people in our target markets. We are a team of ambitious professionals who value innovation, effective efficiency, high growth, and high performance. For more information on the group, please visit [**www.creditstar.com**](http://www.creditstar.com/).

**Our vision is to build and deliver digital banking products of the future. If you want to be part of this, here is your chance.**

**YOUR ROLE:**

**SENIOR QA SPECIALIST**

The Senior QA Specialist is a key contributor to the quality assurance strategy and execution across product and development initiatives. This role is focused on establishing scalable, standards-driven QA processes, selecting fit-for-purpose tools, ensuring compliance with data-related policies, and mentoring stakeholders involved in quality reviews. The role offers a pathway to a team leadership position.

## Requirements

-   Demonstrated experience as a Senior Quality Assurance Tester or in a comparable position.
-   Strong hands-on experience testing native mobile apps on iOS and Android.
-   Expertise in mobile automation and framework design.
-   Proven experience setting up QA processes, tools, or automation frameworks from scratch.
-   Solid hands-on experience with load and performance testing tools (e.g., JMeter, Gatling, k6, or similar).
-   Practical experience testing card payments, including end-to-end payment flows and error handling.
-   Familiarity with Agile methodologies.
-   Experience with mentoring junior specialists.
-   Nice to have: Background in fintech, payments, or high-scale consumer applications.

**YOUR KEY RESPONSIBILITIES:**

-   Evaluate, select, and introduce QA tools for mobile testing, automation, and reporting.
-   Set up and maintain mobile automation frameworks and CI/CD integration.
-   Design, execute, and maintain comprehensive test plans for iOS and Android applications.
-   Perform manual and automated testing of mobile apps across multiple devices and OS versions.
-   Execute and analyze load and performance tests for mobile backends and critical user flows.
-   Supporting, advising and mentoring other stakeholders (PM, Growth leads, Ops leads) that are taking part of product reviews in QA processes.
-   Make sure that all our developments stay compliant and aligned with our Data Quality and Data Security Policies.
-   Mentor other junior QA Specialists with an option to become a Team lead in the future.

**What we offer:**

-   Full ownership of QA direction, tooling, and practices

## Benefits

-   Dynamic, challenging, and rewarding work within a rapidly growing international company;
-   Chance to contribute to the business' decision-making processes and making a tangible impact;
-   Talented and fun international team who always has your back;
-   New modern office in the heart of Tallinn
-   Sports or Health insurance compensation
-   Paid birthday day- off
-   Regular company parties and events;
-   Office with games, ping pong table, free snacks/drinks and the possibility to work remotely;
-   Powerful equipment and modern tools;
-   On-demand sponsorship for your professional development;
-   Competitive remuneration package.

Join us and contribute to our mission while advancing your career. Apply now!

## Apply

[Apply at Creditstar](https://apply.workable.com/creditstar/j/421B96EEA6/apply)

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