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- Tasks: Own features end to end and build scalable payments infrastructure.
- Company: High-growth, AI-first fintech with a mission-led product.
- Benefits: Up to ÂŁ100k salary, hybrid working, and mentorship opportunities.
- Other info: Dynamic team environment focused on innovation and career growth.
- Why this job: Be at the forefront of AI in software development and make a real impact.
- Qualifications: Strong Full Stack experience and confidence in TypeScript or similar languages.
The predicted salary is between 90000 - 100000 ÂŁ per year.
We’re working with a high-growth, AI-first fintech that’s quietly building something pretty special and now looking to add a Senior Full Stack Engineer to their team. This isn’t your typical “we use AI” environment. Engineering here is genuinely LLM-first. Think day-to-day development powered by tools like Claude Code and Codex, with engineers actively shaping how AI integrates into real production workflows.
What you’ll be doing
- Owning features end to end across a modern full stack environment
- Building and scaling payments infrastructure across multiple markets
- Working closely with product and data to solve complex, real-world problems
- Playing a key role in evolving how the team leverages AI in software development
- Mentoring and raising the bar across engineering
Tech environment
- TypeScript at the core, alongside Python and Ruby
- Modern backend frameworks and distributed systems
- Cloud-native infrastructure (AWS, Kubernetes)
- Strong focus on observability, reliability and clean architecture
What they’re looking for
- Strong experience as a Full Stack or Backend leaning engineer
- Confidence working with TypeScript (or similar high-level languages)
- Curiosity and enthusiasm for AI-assisted development
- People who ask great questions and enjoy solving meaningful problems
Why it’s interesting
- AI isn’t a side project here, it’s central to how the team operates
- Real ownership and impact from day one
- Mission-led product
- Hybrid working, 2 days per week in a central London office
Salary - Up to ÂŁ100k
If you’re someone who’s curious about where software engineering is heading, and want to be in a team actually pushing that forward, this is worth a conversation.
Full Stack Engineer in City of London employer: Wave Group
Contact Detail:
Wave Group Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Full Stack Engineer in City of London
✨Tip Number 1
Network like a pro! Reach out to folks in the fintech and AI space on LinkedIn. Join relevant groups and engage in discussions. You never know who might have a lead on that Senior Full Stack Engineer role!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving TypeScript and AI. This is your chance to demonstrate how you can own features end to end and solve real-world problems.
✨Tip Number 3
Prepare for interviews by brushing up on your technical knowledge and soft skills. Be ready to discuss how you've used AI in your past projects and how you can contribute to evolving the team's approach to software development.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who are proactive about their job search!
We think you need these skills to ace Full Stack Engineer in City of London
Some tips for your application 🫡
Show Your Passion for AI: Make sure to highlight your enthusiasm for AI-assisted development in your application. We want to see how you’ve engaged with AI tools and how they’ve influenced your work. This isn’t just a buzzword for us; it’s at the heart of what we do!
Tailor Your Experience: When writing your application, focus on your experience with TypeScript and any relevant backend frameworks. We’re looking for engineers who can own features end to end, so share specific examples of projects where you’ve done just that.
Ask Great Questions: In your written application, don’t hesitate to mention your curiosity and problem-solving skills. We love candidates who ask insightful questions and are eager to tackle complex challenges, so let that shine through!
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 this exciting opportunity. Plus, it shows you’re serious about joining our team!
How to prepare for a job interview at Wave Group
✨Know Your Tech Stack
Make sure you’re well-versed in TypeScript, Python, and Ruby. Brush up on modern backend frameworks and distributed systems, as well as cloud-native infrastructure like AWS and Kubernetes. Being able to discuss your experience with these technologies will show that you’re ready to hit the ground running.
✨Show Your AI Enthusiasm
Since this role is all about AI-first development, come prepared to discuss your thoughts on AI-assisted coding. Share any experiences you have with tools like Claude Code or Codex, and be ready to talk about how you see AI shaping the future of software engineering.
✨Ask Insightful Questions
Demonstrate your curiosity by asking thoughtful questions about the company’s approach to integrating AI into their workflows. This not only shows your interest but also helps you gauge if their vision aligns with yours. Think about what challenges they might face and how you could contribute.
✨Highlight Your Mentoring Skills
As a senior engineer, you’ll be expected to mentor others. Be ready to share examples of how you’ve helped colleagues grow in their roles or improved team processes. This will illustrate your leadership potential and commitment to raising the bar within the engineering team.