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- Tasks: Design and develop AI-enabled interfaces and backend services for a cutting-edge FinTech startup.
- Company: Join a well-funded startup revolutionising financial services with AI-powered tools.
- Benefits: Enjoy hybrid work, competitive salary, stock options, and the chance to shape innovative tech.
- Why this job: Work on meaningful projects at the intersection of AI and finance, collaborating with industry leaders.
- Qualifications: Experience in Full Stack development with JavaScript/TypeScript, React, Node.js, and modern tooling required.
- Other info: This role offers creative ownership and the opportunity to influence product direction from the ground up.
The predicted salary is between 78000 - 182000 £ per year.
We’re partnering with a well-funded, cutting-edge startup that’s redefining how professionals in the financial services industry interact with artificial intelligence. They’re building intelligent agentic tools that don’t just automate tasks, but collaborate with human analysts to generate insights, drive decisions and transform workflows.
This is a unique opportunity for a Senior Full Stack Engineer who’s eager to work on ambitious, meaningful problems at the intersection of AI, UI/UX innovation, and financial software. You’ll help build a dynamic and responsive tech stack that supports real-time, context-aware interaction between humans and AI agents — a space that’s growing fast and ripe for innovation.
As part of a small, senior-led product and engineering team, the Senior Full Stack Engineer will:
- Architect and implement responsive, AI-enabled interfaces using React, NextJS, and TypeScript
- Develop robust backend services with Node.js, connecting to external financial data and AI tools
- Contribute to database design, DevOps workflows, and end-to-end performance
- Collaborate directly with founders and product stakeholders on feature design, architecture, and UX experimentation
- Explore and implement emerging patterns in AI-powered interfaces and real-time interactions
This Full Stack Engineer role combines technical depth with creative ownership, offering the chance to shape the product and stack from the ground up.
They’re searching for a Senior Full Stack Engineer with a breadth of experience:
- Core Requirements:
- Demonstrable experience as a Full Stack Engineer with JavaScript / TypeScript
- Strong frontend expertise in React, NextJS, and modern tooling (Tailwind, etc.)
- Solid backend skills with Node.js, Express, RESTful APIs or GraphQL
- Experience building production-grade applications and designing clean data models (SQL/NoSQL)
Bonus Points For:
- Familiarity with AI/LLM tools (LangChain, Vercel AI SDK, OpenAI APIs)
- Experience building real-time apps (e.g., WebSockets)
- Understanding of authentication/authorization flows in web apps
- Knowledge of financial services, fintech, or enterprise-grade products
This is a rare opportunity for a Senior Full Stack Engineer to be part of something early and impactful — helping build the foundational tools for how AI and humans collaborate professionally in high-value industries. Please reply with your CV or call Simon for a chat.
Contact Detail:
Burns Sheehan Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Full Stack Engineer
✨Tip Number 1
Familiarise yourself with the latest trends in AI and FinTech. Understanding how AI tools like LangChain or OpenAI APIs are being integrated into financial services will give you an edge during discussions with the team.
✨Tip Number 2
Showcase your experience with real-time applications. If you've worked with WebSockets or similar technologies, be ready to discuss specific projects where you implemented these features, as they are highly relevant to this role.
✨Tip Number 3
Prepare to discuss your approach to UX experimentation. Since this role involves collaboration on feature design and architecture, having a clear methodology for testing and iterating on user interfaces will impress the hiring team.
✨Tip Number 4
Network with professionals in the FinTech space. Engaging with communities or attending meetups can provide insights into the industry and may even lead to referrals, increasing your chances of landing the job.
We think you need these skills to ace Senior Full Stack Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with JavaScript, TypeScript, React, Next.js, and Node.js. Emphasise any projects where you've built production-grade applications or worked with AI tools, as this aligns closely with the job requirements.
Craft a Compelling Cover Letter: In your cover letter, express your enthusiasm for the role and the company. Discuss how your skills in full stack development and your understanding of AI can contribute to their mission of redefining financial services.
Showcase Relevant Projects: Include links to your GitHub or portfolio showcasing relevant projects, especially those involving real-time applications or AI integrations. This will give the hiring team a clear view of your capabilities and creativity.
Highlight Collaboration Experience: Since the role involves working closely with founders and product stakeholders, mention any past experiences where you collaborated on feature design or UX experimentation. This demonstrates your ability to work in a team-oriented environment.
How to prepare for a job interview at Burns Sheehan
✨Showcase Your Technical Skills
Be prepared to discuss your experience with JavaScript, TypeScript, React, and Node.js in detail. Bring examples of past projects where you've implemented these technologies, especially in building production-grade applications.
✨Demonstrate Your Problem-Solving Ability
Expect to face technical challenges during the interview. Practice explaining your thought process when tackling complex problems, particularly those related to AI integration and real-time applications.
✨Understand the Company’s Vision
Research the startup's mission and the role of AI in their products. Be ready to discuss how you can contribute to their goals and bring innovative ideas to the table, especially regarding UI/UX and financial software.
✨Prepare for Collaborative Discussions
Since the role involves working closely with founders and product stakeholders, be ready to engage in discussions about feature design and architecture. Show your willingness to collaborate and experiment with new ideas.
