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- Tasks: Lead backend quality initiatives and design scalable test automation frameworks.
- Company: Join Symphony, a pioneering tech company in global finance.
- Benefits: Competitive salary, bonus plan, and unique regional benefits.
- Why this job: Make a real impact on cutting-edge technology in a fast-paced environment.
- Qualifications: 5+ years in software testing with strong backend expertise.
- Other info: Exciting perks and opportunities for professional growth await you!
The predicted salary is between 36000 - 60000 £ per year.
About us @Symphony We’ve spent the last 10 years building a communication and markets technology company, powered by interconnected platforms: messaging, voice, directory and analytics. Over 1000 institutions use our modular technology built for global finance. Security is in our DNA with uncompromising data protection, end-to-end encryption and resilient architecture, all created on a foundation of trust with our customers. But that was only chapter one. We’re now building on our purpose-built network, expanding AI-powered, real-time collaboration, redefining flexibility with fully cloud-native software with our trader voice product, and rethinking the industry’s approach to identity verification, connection and intelligence. The opportunity and our ambition are huge. But we need passionate, dedicated individuals to get there. At Symphony we work hard and fast. Our unique blend of technology and financial services makes it an environment you won’t get elsewhere.
Role Description We are looking for a highly skilled and motivated Senior SDET (Software Development Engineer in Test), Backend to take a lead role in ensuring the quality and reliability of our backend components supporting both mobile and desktop clients. In this role, you will design, develop, and maintain scalable test automation frameworks, collaborate closely with developers, and drive a shift-left testing mindset within the engineering teams. As a technical quality leader, you will bring strong expertise in backend testing, white box testing, and development practices. You will play a key role in supporting the execution of the Backend Test Strategy, coordinating across teams and products, and ensuring the delivery of robust, secure, and performant backend solutions. If you are passionate about backend quality, automation, and engineering excellence, we would love to hear from you!
Responsibilities:
- Take ownership of quality initiatives for backend components supporting mobile and desktop clients.
- Design, implement, and maintain test automation frameworks for backend systems.
- Work closely with developers to enable shift-left testing practices and embed quality earlier in the development lifecycle.
- Apply strong skills in backend and white box testing to validate APIs, services, and integrations.
- Ensure reliable test execution across Cloud (GCP/AWS), Kubernetes, and Windows 10/11 environments.
- Collaborate across teams and product lines to drive quality alignment and consistency.
- Troubleshoot, debug, and resolve issues in complex backend systems.
- Mentor other SDETs and contribute to continuous improvement of test strategies, processes, and tools.
- Support the execution and evolution of the Backend Test Strategy.
Required Qualifications:
Technical Skills
- Strong programming skills in C# and TypeScript (as nice to have).
- Proven experience with backend testing and automation frameworks.
- Hands-on experience in white box testing of APIs, services, WebSocket connections, and backend systems.
- Strong understanding of WebSocket protocols, WebRTC, and practical experience testing WebSocket-based services.
- Knowledge of cloud environments (GCP/AWS) and containerized deployments using Kubernetes.
- Familiarity with Windows 10/11 environments.
- Experience with CI/CD pipelines, Git, and backend testing tools.
- Strong understanding of backend development practices and modern testing methodologies.
Soft Skills
- Proven leadership in driving backend quality initiatives.
- Excellent communication, collaboration, and coordination skills.
- Strong analytical and problem-solving skills with attention to detail.
- Ability to thrive in a fast-paced, cross-functional environment.
- Proactive, self-motivated, and passionate about backend quality and automation.
Education & Experience
- Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field (or equivalent practical experience).
- 5+ years of experience in software testing or SDET roles, with a strong focus on backend systems.
- At least 2+ years in a senior or lead capacity, driving quality initiatives at scale.
Compensation:
- Competitive salary
- Bonus Plan
- Benefits and Perks vary based on location.
Benefits and Perks:
- Regional specific competitive benefits
- Build your own Benefits (BYOB) perk
- Many other fun and exciting benefits and activities!
Senior Software Development Engineer in Test (Back-End) in Belfast employer: Symphony.com
Contact Detail:
Symphony.com Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Software Development Engineer in Test (Back-End) in Belfast
✨Tip Number 1
Network like a pro! Reach out to current employees at Symphony on LinkedIn or other platforms. Ask them about their experiences and any tips they might have for the interview process. This insider info can give us a leg up!
✨Tip Number 2
Prepare for technical interviews by brushing up on your backend testing skills. Practice coding challenges and review common SDET interview questions. We want to show off our expertise in C# and TypeScript, so let’s get those skills sharp!
✨Tip Number 3
Don’t forget to showcase our passion for quality and automation during interviews. Share specific examples of how we’ve driven quality initiatives in past roles. This will help us stand out as the perfect fit for Symphony's ambitious goals!
✨Tip Number 4
Apply through our website! It’s the best way to ensure our application gets noticed. Plus, it shows we’re genuinely interested in being part of the Symphony team. Let’s make that application count!
We think you need these skills to ace Senior Software Development Engineer in Test (Back-End) in Belfast
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Senior SDET role. Highlight your experience with backend testing, automation frameworks, and any relevant programming skills like C# and TypeScript. We want to see how your background aligns with our needs!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share your passion for backend quality and automation, and explain why you’re excited about joining Symphony. Let us know how you can contribute to our mission of delivering robust and secure backend solutions.
Showcase Your Technical Skills: Don’t forget to highlight your technical expertise in your application. Mention your hands-on experience with white box testing, cloud environments, and CI/CD pipelines. We love seeing candidates who are proactive and have a strong understanding of modern testing methodologies!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on being part of our team at Symphony!
How to prepare for a job interview at Symphony.com
✨Know Your Tech Inside Out
Make sure you brush up on your programming skills, especially in C# and TypeScript. Be ready to discuss your experience with backend testing and automation frameworks, as well as your hands-on experience with white box testing of APIs and services.
✨Showcase Your Problem-Solving Skills
Prepare to share specific examples of how you've tackled complex backend issues in the past. Highlight your analytical skills and attention to detail, as these are crucial for a Senior SDET role.
✨Emphasise Collaboration
Since this role involves working closely with developers, be ready to discuss how you've fostered collaboration in previous roles. Talk about your experience enabling shift-left testing practices and how you’ve mentored other SDETs.
✨Understand the Company’s Vision
Familiarise yourself with Symphony's mission and recent developments, especially around AI-powered collaboration and cloud-native software. Showing that you understand their goals will demonstrate your genuine interest in the role and the company.
