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| Job Position and Company | Posted | Location | Salary | Tags |
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Blockchain📍 Remote | $94k - $210k | |||
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 ISO 9001 Certified | 400+ students | Learn more | by Metana | ||
| $77k - $112k | ||||
| $105k - $180k | ||||
Bluecubeservices📍 Remote | $106k - $107k | |||
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| $126k - $180k | ||||
| $105k - $120k | ||||
Blockchain📍 Remote | $90k - $108k | |||
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At R3, we are building the on-ramp for the next trillion dollars of assets to move on-chain, bridging the worlds of traditional finance (TradFi) and decentralized finance (DeFi). We are launching institutional-grade RWA yield vaults, fully composable and integrated into Solana DeFi.
We are seeking a Senior QA SDET to take a technical role in shaping the quality and reliability of our blockchain protocol. You will work closely with protocol engineers and smart contract developers to design, execute and automate testing for blockchain applications and decentralized systems.
Responsibilities:
Own the automation of Web3 wallet workflows, addressing complex testing challenges such as wallet integrations, transaction validation and end-to-end blockchain interactions
Develop and execute comprehensive test plans and test cases for smart contracts, transactions and wallet integrations workflows
Collaborate with developers, product managers, and DevOps engineers in Agile ceremonies to ensure test coverage aligns with business needs
Log, prioritize, and manage defects using tracking tools like JIRA
Analyse test results, generate quality metrics, and clearly communicate risks and issues
Required Skills & Experience:
1+ year working with blockchain or Web3 products, ideally on Solana
6-10 years of hands-on experience in Manual QA techniques and Test automation roles, ideally in Agile environments
Testing smart contracts, transactions and wallet integrations
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Proficient in using test automation frameworks and tools such as:
UI Testing: Selenium, Cypress/JavaScript/Typescript, Appium
API Testing: REST Assured, Postman, SoapUI
BDD Tools: Cucumber, Serenity
Database Testing
Solid experience with CI/CD pipelines and tools (e.g., Jenkins, GitHub Actions)
Familiarity with cloud-native architectures and container technologies like Docker and Kubernetes
Experience testing in distributed systems and microservice architectures
Strong analytical and problem-solving abilities
Excellent communication and collaboration skills
Nice to Haves:
Exposure to financial services, fintech, or trading system technologies
Strong coding skills in Java, Kotlin, or similar languages, with demonstrated experience building maintainable test automation code
Familiarity with tools like XRAY, TestRail, Grafana, Kibana, Prometheus, Helm charts for test management and observability
Understanding of performance, reliability, or security testing approaches
ISTQB/CSTE certification
What You'll Gain:
Opportunities to contribute and shape the test strategy for key product components
The chance to help shape test frameworks and tooling direction
A fast-paced, collaborative team environment with modern DevOps and agile workflows
Is Kotlin a good career?
Yes, Kotlin is a good career choice for developers who want to work in the Android app development, backend development, or cross-platform development space
Kotlin is a modern programming language that was designed to improve upon some of the shortcomings of Java, making it more concise, safe, and interoperable with other languages
Here are some reasons why Kotlin is a good career choice:
- High Demand: Kotlin is in high demand in the technology industry, especially in the Android app development space. Many companies are now using Kotlin to develop their Android apps, and the demand for Kotlin developers is growing rapidly.
- Compatibility: Kotlin is interoperable with Java, which means that developers can use both languages in the same project. This makes it easy for developers to migrate from Java to Kotlin and vice versa, and it also makes it easier to integrate Kotlin into existing Java-based projects.
- Easy to Learn: Kotlin is relatively easy to learn for developers who are already familiar with Java or other similar programming languages. Kotlin has a simpler syntax than Java, making it easier to read and write code.
- Concise and Safe: Kotlin is a more concise language than Java, which means that developers can write less code to achieve the same functionality. Additionally, Kotlin has built-in null safety features that help developers avoid common errors and bugs.
- Career Growth: Kotlin is a relatively new language, which means that there is a lot of room for growth and innovation. Developers who are proficient in Kotlin have the opportunity to contribute to the development of the language and its ecosystem, which can lead to career growth and advancement.