Full Stack Developer | Python & React | Innovation Labs Team in a FinTech
 
Our client, a global leader in international financial services, has built a strong reputation over the past 40 years and is now expanding further into the FinTech space through a dedicated innovation labs function. This high-energy team is designed to experiment quickly, build proofs of concept, and deliver innovative solutions that solve real-world business challenges.
 
They are looking for a Full Stack Developer to join their dynamic Labs Team. Reporting to the Innovation Architect, you will help design and build next-generation products across areas including fraud monitoring, regulatory intelligence, AI-driven marketing, and real-time event-stream banking systems.
 
The role is based in London (Victoria), with hybrid working: three days in the office and two from home.
 
Responsibilities:

\n
• Python backend development using FastAPI, Pydantic, and related frameworks
\n
• JavaScript (React) frontend development based on FIGMA designs
\n
• KAFKA integration for building event-driven architectures
\n
• Database development using CosmosDB and MongoDB
\n
• Rapid prototyping (POC) and supporting production-level scalability
\n
• Cloud-based system design and development with a focus on resilience and security
\n
• Application of design and architecture standards to balance innovation with quality
\n

 
Example projects the Labs Team have delivered:

\n
• Fraud detection and transaction monitoring platforms
\n
• Regulatory intelligence engines for cross-border compliance
\n
• Generative AI marketing tools adapting presentations to client profiles
\n
• Real-time event-stream processing systems to support future-ready financial operations
\n

 
Ideal Candidate Profile:

\n
• Python development experience, preferably with FastAPI and modern backend frameworks
\n
• React frontend development experience with modern JavaScript/TypeScript ecosystems
\n
• KAFKA event-driven system design experience
\n
• Strong academic background in a STEM discipline
\n
• 0.5 to 3 years of commercial software development experience
\n
• Inquisitive and creative mindset, with a passion for using technology to solve business problems
\n
• Track record of side projects, open-source contributions, or demonstrable personal technical initiatives
\n
• Collaborative and energetic team player with a proactive attitude
\n

 
Benefits:

\n
• 26 days holiday
\n
• 10% discretionary bonus
\n
• Private medical insurance
\n
• Life assurance
\n
• Competitive pension scheme
\n
• Exposure to cutting-edge technologies and innovation-driven projects
\n

 
This is an excellent opportunity to join a fast-moving innovation team at the forefront of digital transformation within financial services. You will be working in a creative, experimental environment, with exposure to cutting-edge technologies and real-world impact.
Please apply today or get in touch to find out more.
 
Full Stack Developer | Python & React | Innovation Labs Team in a FinTech