Test Analyst

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions.Everyone is encouraged to constantly grow and learn new skills. Pair programming supports continual growth of knowledge and sharing of expertise, alongside regular team rotations ensuring everyone gains first-hand knowledge on all areas of our codebase. Friday afternoons are set aside as personal development time where you can explore a different testing ideas, research new test tools, or play around with one of our environments. There is also regularly scheduled time to improve your experience and reduce testing and technical debt - directed by the team.Our continuous integration and testing culture allows us to have confidence in our builds and develop quickly. We have over 30,000 acceptance tests running every 25 mins in our CI, alongside other extensive test suites, also in CI (performance, compatibility, migration, resilience). Continuous Delivery was pioneered at LMAX - one of the authors worked here while writing the book. Due to pair programming and testing we don't do pull requests, we push directly to our monorepo with a "revert first, ask questions later" attitude. If you want to work with great developer practices like 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 a thriving exchange with opportunities to learn about the finance industry, then LMAX is for you! What you should expect:

• 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.
What you'll be working with:
• 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
  
  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