At a Glance
- Tasks: Lead the design of B2B APIs and payments infrastructure while mentoring fellow engineers.
- Company: High-growth UK fintech revolutionising payment systems for merchants and consumers.
- Benefits: £120,000 salary, share options, flexible office policy, and comprehensive benefits.
- Other info: Dynamic scale-up environment with opportunities for professional growth.
- Why this job: Join a team building disruptive technology and shape the future of payments.
- Qualifications: 8+ years in software engineering, strong Node.js and TypeScript skills required.
The predicted salary is between 120000 - 120000 € per year.
£120,000 + Share Options & Benefits
Flexible office policy | South London
I'm partnering with a high-growth UK payments fintech that's fundamentally rethinking how merchants and consumers pay for goods and services. This isn't a company doing incremental work, they're building genuinely disruptive infrastructure at scale, and they're now bringing on multiple Senior Engineers to help define the next chapter of growth.
The Engineering Environment
- A modern, cloud-native platform engineered for serious scale: Node.js, TypeScript, React (frontend), AWS cloud infrastructure, Terraform (Infrastructure as Code), Public-facing REST APIs, Fully automated CI/CD pipelines, Data science and ML-driven personalisation, Scalable B2B payments infrastructure
The Role
- As a Senior Software Engineer, you'll be working to shape architecture, not just implementing it:
- Lead the design and evolution of B2B APIs and payments infrastructure
- Contribute to architectural decisions across distributed systems
- Partner with Product and UX during discovery and solution design
- Own features end-to-end, from concept through to production
- Mentor engineers and raise the bar on engineering standards
- Champion best practices across testing, CI/CD, and security
What They're Looking For
- 8+ years in software engineering, with at least 2 years in financial services (payments, banking, or wealth) or a high-volume transaction environment (eCommerce, gaming, betting, or streaming)
- Strong backend engineering experience with Node.js and TypeScript
- A track record of building and maintaining public REST APIs
- Solid AWS experience (Terraform a plus; Kubernetes a strong bonus)
- Comfort working within distributed, event-driven architectures
- A delivery-focused mindset as you take ownership and see things through
- At ease in fast-moving, scale‑up environments where ambiguity is the norm
Senior Backend Developer employer: F5 consultants
Join a pioneering fintech company in South London that is redefining payment solutions with a focus on innovation and disruption. With a flexible office policy, competitive salary, and share options, this high-growth environment fosters a collaborative culture where your contributions directly impact the future of payments. You'll have ample opportunities for professional development, mentoring fellow engineers, and shaping the architecture of cutting-edge technology in a dynamic team setting.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Backend Developer
✨Tip Number 1
Network like a pro! Reach out to your connections in the fintech space, especially those who work at companies you're interested in. A friendly chat can lead to insider info and even referrals that could get your foot in the door.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those involving Node.js, TypeScript, or AWS. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Prepare for technical interviews by brushing up on your backend engineering knowledge. Practice coding challenges and be ready to discuss your architectural decisions and experiences with distributed systems. Confidence is key!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative to connect directly with us.
We think you need these skills to ace Senior Backend Developer
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the role of Senior Backend Developer. Highlight your experience with Node.js, TypeScript, and any relevant financial services background. We want to see how your skills align with our needs!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're excited about joining our fintech team and how you can contribute to building disruptive infrastructure. Let us know what makes you tick!
Showcase Your Projects:If you've worked on any notable projects, especially in payments or high-volume environments, make sure to mention them. We love seeing real-world applications of your skills, so don’t hold back!
Apply Through Our Website:We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you get all the updates directly from us. Plus, it’s super easy!
How to prepare for a job interview at F5 consultants
✨Know Your Tech Stack
Make sure you’re well-versed in Node.js, TypeScript, and AWS. Brush up on your experience with REST APIs and Terraform, as these are crucial for the role. Be ready to discuss specific projects where you've used these technologies.
✨Showcase Your Problem-Solving Skills
Prepare to talk about how you've tackled complex engineering challenges in the past. Think of examples where you’ve designed B2B APIs or contributed to architectural decisions. This will demonstrate your ability to shape architecture, not just implement it.
✨Emphasise Your Mentorship Experience
Since mentoring is part of the role, be ready to share instances where you've guided junior engineers or improved team standards. Highlight how you’ve championed best practices in testing, CI/CD, and security.
✨Understand the Company’s Vision
Research the fintech's mission and recent developments. Be prepared to discuss how your skills can contribute to their disruptive infrastructure goals. Showing that you align with their vision will set you apart from other candidates.
