Blockchain SDET - Software Development Engineer in Test

at  Definitive

SDET - Blockchain, West London, £70-110K, bonus, private medical, pension. You must be an experienced SDET, Software Development Engineer in Test with some exposure / experience of blockchain, ideally with good Java although C# experience will be considered. You will need to be able to demonstrate where you changed / improved testing environments and be passionate about testing and continuous delivery.
The company and role:
Finance is going to be tokenised through the use of blockchain technologies. We want to be at the forefront of that wave, working with the institutions to build efficient, regulated and fair markets. We have already built a brand new trading solution, taking the best of centralised liquidity and decentralised security. It is live on public blockchains, we’re not just prototyping. Our roadmap is heavily developer driven, with CEO buy in, meaning you can substantially influence the direction of the project.
Developers are encouraged to constantly develop and learn new skills. Pair programming supports continual growth of knowledge and sharing of expertise. Friday afternoons are set aside as personal development time where you can explore new languages, research bleeding edge technologies, or even come up with brand new projects pushing the boundaries of finance. There is regular time to improve developer experience and reduce technical debt.
If you want to work in an environment that follows great developer practices such as fast feedback across all aspects of your work, a cooperative culture, and only shipping things when they’re ready, while being at the heart of the finance revolution, then this is the perfect opportunity for you!

Responsibilities:

• Testing is core to what we do; the test analyst is the team’s test specialist (everyone can and will write tests) and you will direct where that effort goes.
• We have a very mature testing setup so much of the work is expanding on what we already have but we’re always up for adding new types of tests.
• You will come up with the majority of test cases, functional and non-functional testing approaches and testing ideas as well as being able to write code to support them.
• Collaborative office environment with constant pairing and plenty of social activities.
• Work across the stack to solve a problem – you might be working with a performance critical component, integrating a new blockchain, or designing a greenfield cloud based system.
• Regular opportunities to learn and develop yourself with internal tech talks, ability to travel to conferences, and dedicated time for your personal development.

Technical environment:

• Backend: Distributed, event-driven core Java 21 (80% of the code-base), MySQL, Kafka, Solidity (EVM Smart Contracts), Rust (Solana Smart Contracts)
• Frontend: Javascript, Vue.js
• Deployment: Kubernetes, AWS
• Testing: JUnit, Hardhat, Jenkins, Selenium, plus many, many in-house tools written in Java
• OS: Linux

About you:

• Be passionate about testing - bad tests and bad code offend you!
• Be able to learn a domain and combine that with your knowledge of the code, architecture and testing to come up with test cases.
• Work in a dynamic environment enabled by fast feedback; the heart of our ethos
• Pair programming in small teams of developers and testers (you should be comfortable with reading & writing code)
• A desire to share knowledge and learn from like-minded peers
• Work across a variety of teams covering a range of domains and technologies
• Write reliable tests – we ship only when code is ready, we need to trust our feedback.

This role requires 4 days a week in a West London office.
This SDET - Blockchain role is based in West London and pays £70-110K, bonus, private medical, pension

• Testing is core to what we do; the test analyst is the team’s test specialist (everyone can and will write tests) and you will direct where that effort goes.
• We have a very mature testing setup so much of the work is expanding on what we already have but we’re always up for adding new types of tests.
• You will come up with the majority of test cases, functional and non-functional testing approaches and testing ideas as well as being able to write code to support them.
• Collaborative office environment with constant pairing and plenty of social activities.
• Work across the stack to solve a problem – you might be working with a performance critical component, integrating a new blockchain, or designing a greenfield cloud based system.
• Regular opportunities to learn and develop yourself with internal tech talks, ability to travel to conferences, and dedicated time for your personal development