Software Development Engineer in Test in Kent

We are growing rapidly and constantly expanding our global contactless payment ecosystem. To support this momentum, we are looking for a Software Development Engineer in Test to play a crucial role in delivering our key software solutions. Joining a close-knit engineering team, you will not just write tests—you will champion a quality-first mindset from day one.

You will collaborate closely with domain owners to deliver high-quality, clean, and testable code in line with our core strategies. This is an excellent opportunity for a dedicated SDET who is ready to advocate for best practices, build resilient automation frameworks, and ensure our scalable software thrives within a secure cloud infrastructure.

Responsibilities

• Design, build, and deliver sustainable, scalable, reliable, and well-tested software into a secure cloud infrastructure.
• Advocate for and implement testing best practices across all disciplines, promoting a quality-driven and testable mindset within the team.
• Foster a collaborative environment where everyone shares the responsibility for quality and testing from the very outset of a project.
• Guide the team during planning and refinement sessions to accurately understand and estimate test efforts and identify dependencies.
• Pair with Software Engineers during development and code review to ensure appropriate test coverage at all levels and avoid any duplication of efforts.
• Develop and maintain robust tools for integration, regression, load, performance, and security testing, ensuring our automation framework is targeted, efficient, and resilient.
• Investigate and determine the root cause of complex issues by analyzing logs, databases, and system behavior.

About Payter

At Payter, we are innovators, pioneers, and leaders in the dynamic realm of unattended/self-service contactless and cashless payment technology in a wide range of markets such as Electrical Vehicle Charging, Transportation, Retail, Hospitality, Vending, Charity, Parking, and beyond. The adaptable Payter platform accommodates a diverse range of payment technologies (NFC, EMV, ApplePay, GooglePay, etc.), international banking processes, closed-loop payment and loyalty schemes, and telemetry. Through continuous innovation and in-house development, we redefine how vendors connect with their customers, empowering them to boost revenue, enhance user experiences, and access real-time sales and performance data. We support a broad range of technologies, from Contact & Contactless EMV, Mifare, WiFi, 5G, Bluetooth, Touch Screens and more. Our state-of-the-art products have an extremely long service life, are of high quality, compliant with multiple international standards, boast great design, are user-friendly for all, multifunctional, and easy to integrate.

Job requirements

• You have a strong track record of advocating for modern software testing practices and mentoring engineers to build a healthy, automation-first testing culture.
• You possess deep experience developing and maintaining automated test suites across the entire testing pyramid, including unit, component, integration, end-to-end, load, and performance testing.
• You are highly proficient in diverse testing strategies (TDD, BDD, Black/White Box), alongside mocking/stubbing, test data management, and test results reporting.
• You have hands-on experience with native Golang testing packages and UI frameworks like Playwright. (Note: If you are proficient in another language, we will train you as long as you are committed to learning Golang!)
• You are experienced with CI/CD pipelines, DevOps practices (including Infrastructure as Code), and cloud platforms like GCP, alongside a strong understanding of event-based, distributed microservice architectures and containerization.
• You have a solid grasp of core software engineering fundamentals (Git workflows, OOP, SOLID principles, design patterns) and software security practices (vulnerability assessments, penetration testing).
• You are a highly organized, analytical problem-solver with excellent verbal and written communication skills, a keen eye for detail, and a passion for sharing knowledge and delivering work you take pride in.

What We Offer

• Competitive salary and a discretionary bonus based on company performance
• 25 days of annual leave plus UK bank holidays
• Dedicated monthly “well-being days” to support mental health and work-life balance
• Attractive company pension plan
• Fully remote working environment with a focus on flexibility
• Opportunities for high-impact growth within an international scale-up in the payments industry