Software Developer in Test in London

When you join Exclaimer you will join a global award-winning SaaS provider with an exceptional revenue rate, ambitious growth plans, and an inclusive and outcomes-driven culture. Exclaimer is a high-growth SaaS company with 300+ colleagues across the UK, US, Europe, and Asia-Pacific. We promote a people-first culture built on fairness, inclusion, psychological safety, and continuous learning. As we evolve into a multi-channel platform for branded business communications, we offer employees the opportunity to shape the future of global communication—while growing their careers in a culture where curiosity, creativity, and accountability thrive.

We’re officially Great Place To Work Certified™. Exclaimer has been recognised by Great Place to Work® for our culture of collaboration, trust, and growth. This certification reflects our commitment to creating an environment where every voice matters and people genuinely enjoy coming to work.

• Creation of reliable peer-reviewed automated tests, to validate customer-focused acceptance criteria as part of an end-to-end testing lifecycle.
• Actively look to improve testing efficiency, looking for opportunities to ‘shift left’ when considering the level at which new test cases might best be created.
• Participate in planning meetings, ensuring that test effort for new features/features under development is appropriately considered and estimated.
• Ensure any bugs or issues found are appropriately documented to facilitate smooth investigation, and validate fixes to confirm resolution.
• Ensure both functional and non-functional test areas are considered where appropriate, taking a balanced view as to a suitable level of test coverage.
• Participate in code reviews for automated tests written by engineers within the team and cross-team.
• Work with other test engineers to improve testing tools & processes, identify and bring into practice any relevant potential new test tools & frameworks.
• Creating, configuring, maintaining and deploying test environments.
• Leading by example, as an individual contributor; following best testing practices and identifying improvements.
• Collaborating with the Product, UX and the wider Engineering team to define solutions to the customer’s problems and identify increments that allow the earliest possible release of value that deliver a world class user experience across multiple demographics.

• A desire to work in a technology focused role, testing software that solves problems for millions of users every day.
• Highly organised with attention to detail.
• Pro‑actively look to understand where gaps are in our technology stack and help incorporate innovative technologies that can help with our development experience or even velocity within the teams.
• Be able to take a problem, assess possible solutions and create clean, robust, well tested solutions.
• Takes a pragmatic approach to testing, focusing effort based on risk, whilst acknowledging exhaustive testing is impossible.
• A driven individual contributor with a passion for learning and continuous improvement.
• Experience of working closely with Product Management and UX Designers to identify and collaborate on the optimal solution to the customer/technical problem.
• Excellent ability to establish trust and build relationships with peers and stakeholders across the business; you will be able to communicate clearly, succinctly, and without ambiguity.
• History of working in a fast-paced SaaS business delivering high frequency incremental delivery of customer facing functionality.

• Background and previous experience in automated software testing and test tools.
• Strong communicator and collaborator within team and cross-team.
• Creating test cases for new and existing functionality in C#.
• Behaviour-driven test frameworks such as ReqNRoll (formerly SpecFlow).
• Visual Studio Code, GitHub, and Git.
• Building robust and scalable test frameworks using Playwright.
• Back‑end testing via RESTful APIs and queues.

• Knowledge of creating & modifying pipelines for test execution as part of CI/CD.
• Familiarity with performance test tools such as JMeter, K6, WebSurge, Locust.
• Exposure/experience in testing within a microservice environment.

At Exclaimer, we’re proud to offer a benefits package that reflects our commitment to supporting you professionally, personally, and wherever life takes you. Alongside competitive pay, you’ll have access to generous paid time off, flexible working options including our XFlex programme and a “work from anywhere” allowance – plus enhanced leave for all new parents, regardless of gender, family structure, or path to parenthood. Our wellbeing offering includes comprehensive healthcare coverage, fully funded insurance and income protection, access to 24/7 virtual care, and mental health, legal and financial support through employee assistance programmes. We help you plan for the future with contributory retirement plans and savings support, and back your day-to-day wellbeing with perks like subscriptions to Calm and Blinkist, fitness and lifestyle credits, global travel assistance and a wide range of discounts. Wherever you're based, you'll find that Exclaimer’s benefits are designed to help you thrive: at work and beyond.

At Exclaimer, inclusion is more than a policy – it’s part of who we are. We’re proud to be an equal opportunity employer and welcome applications from people of all backgrounds, experiences, and identities. We consider all candidates fairly and without discrimination irrespective of ethnicity, race, religion, nationality, age, gender, marital status, disability, neurodivergence, caring responsibilities, sexual orientation, or gender identity. We’re building a culture where everyone feels they belong and can thrive, and we’d love for you to be part of it. If you require any reasonable adjustments or support through the application or hiring process, please email the team in confidence to let us know.