Software Development Engineer in Test

London, England
Work Type: Full Time

*** This is an office based role, you must be able to commute to and work in the City of London as a norm***                                                                                     


About us

Archax is an FCA-regulated exchange, broker and custodian for digital assets, targeted at professional and institutional clients. Our services cover all types of digital assets – from cryptocurrencies to NFTs to digital securities – as well as traditional financial instruments too. Our vision is to develop a truly digital capital markets ecosystem that bridges traditional and crypto markets, leveraging tokenisation and blockchain/DLT/Web3.0 technologies.

Software Development Engineer in Test 

An opportunity has arisen for an experienced SDET who will be testing the software platform for a new digital asset exchange; focused on an institutional client base. The ideal applicant will bring previous experience in testing scalable mission-critical financial systems, working with global teams, ensuring best testing practices, and staying within agreed project timelines.

As the SDET, you must be hands-on and well-versed with the automation of API testing using WebSockets. You will also assist API QA teams based in the PH location and help prioritize their automation backlog and make recommendations for testing tools, maintenance, and testing strategies, and assist with creating a maintainable application landscape alongside other QA Engineers, Development Leads, Developers, and Scrum Masters.

Working for this employer as they experience continued growth you will have a unique opportunity to enhance and develop your career working on high-profile projects with like-minded and skilled colleagues who are as passionate about providing best-in-class expertise as you are.

Key Accountabilities/Responsibilities:


  • Analyse and design test plans and cases, step definitions, and feature files in order to test our Product range, acting as the most senior QA Engineering members of the team
  • Help to build test libraries and increase automation coverage in our tools
  • Staying up to date with new technologies, multi-tasking on multiple projects with other team members
  • Follow software development processes and testing conventions, using Agile/SCRUM principles, and working closely with other QA Engineers, Development Leads, Developers, and Scrum Masters
  • Break down detailed specifications and implement testing requirements based on the needs of the Product team, Stakeholders, and Clients
  • Generate reporting progress metrics and list of tests which are flaky and prioritise them
  • Supporting, mentoring, and following best coding practices and guidelines
  • Troubleshoot issues in a timely manner in a highly scalable development environment
  • Help to achieve 100% automation and integrate and maintain the tests within Jenkins CI/CD pipeline
  • Contribute ideas to improve the testing process and overall development practices
  • Work with the SCRUM Masters and Development Leads to coordinate within SCRUM meetings with the Product team/Stakeholders, ensuring all relevant information to the Test team and project are shared and discussed
  • Continuous review of automation tests and should build a scalable framework

Working for this employer as they experience continued growth you will have a unique opportunity to enhance and develop your career working on high-profile projects with like-minded and skilled colleagues who are as passionate about providing best-in-class expertise as you are.

Technical Knowledge and Experience Required:


  • The ideal candidate will have a degree relevant to Information Technology/Computer Science, Engineering (or equivalent), and at least 9 years of API automation experience.
  • Experience in developing test plans, test cases, and performing testing
  • Experience in using BDD practice using JavaScript-based testing frameworks (such as Gherkin, Cucumber, Spectron, Mocha, Chai) in a CI (Continuous Integration) environment
  • Has previously worked in the financial service industry and has experience with testing capital markets and high volume trading software solutions with at least 6+ years of experience
  • Experience of working on OMS
  • Experience in using Postman
  • Well-versed with FIX protocol and trading standards and its lifecycle.
  • Familiarity with frameworks/languages such as NodeJS, ReactJS, TypeScript, C++, Java, SuperWSTest, PactumJS
  • Experience in functional and performance testing, sanity testing, black/white box testing, static testing, positive and negative testing, and security testing
  • Experience in load/stress/performance testing (JMeter, LoadRunner, LoadStorm)
  • Participate in Quality Assurance activities including but not limited to estimation, test planning, test design, performance testing, test execution,
  • Experience with collaborative team software tools (Confluence, JIRA, Sharepoint)
  • Passion for product quality/attention to detail in unblocking any automation blockers and finding ways to automate every scenario
  • Excellent written and oral communication level in English language.

It would be nice to have additional testing understanding in the following areas:

  • Understanding of testing blockchain solutions
  • Experience of working on globally distributed market data systems using web tech
  • Familiarity with finsemble, electron-based application
  • GUI automation tools


  • Competitive salary
  • Discretionary bonus
  • Company pension scheme
  • Comprehensive private healthcare scheme
  • The chance to be part of an entrepreneurial, exciting, fast-growing, and future thinking company
  • Opportunities to attend events and represent Archax and its vision
  • Encouragement and support in your personal career development and industry knowledge
  • 25 days holiday, increasing by one day each year (up to 30 days)


Archax is an equal opportunities employer and places a high value on diversity and inclusion. We do not discriminate based on any attribute.

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