Senior Full Stack Engineer (Cards)

ebury; City of Westminster; On-site; GBP 60,000 - 90,000; Full time

Job summary

A global fintech firm in the City of Westminster seeks an experienced professional to lead the design and delivery of complex customer-facing web applications. The role requires 5+ years of full-stack development experience focused on high-performance applications and proficiency in Python. Join a dynamic team that values collaboration, innovation, and professional growth within a supportive environment. This is an exciting opportunity to shape how global businesses connect internationally, offering competitive salary and a range of benefits.

Benefits

Competitive salary and benefits package

Professional growth opportunities

Collaborative and dynamic environment

Qualifications

• 5+ years of experience focused on high-performance web applications.
• Strong understanding of architecture and design patterns.
• Comfortable in a fast-paced and autonomous work environment.

Responsibilities

• Lead the design and delivery of features for web applications.
• Drive frontend development using React or VueJS.
• Collaborate with data engineers on robust data pipelines.

Skills

FinTech experience

Full-stack development

Frontend frameworks (React)

Python3 proficiency

REST APIs

Testable code construction

Communication skills

Education

Bachelor's or Master's degree in Computer Science

Tools

FastAPI

Containerization

Terraform

Job description

Responsibilities

• Lead the design and delivery of complex features for customer-facing web applications.
• Drive frontend development using React or VueJS and backend development with Python.
• Collaborate with data engineers to design, build, and optimize robust data pipelines for analytics and machine learning.
• Own the full product lifecycle, including development, maintenance, monitoring, and alerting.
• Mentor junior engineers and champion technical excellence.
• Collaborate cross-functionally to deliver impactful solutions.
• Contribute to the technical roadmap, identifying opportunities for innovation.
• Ensure code is testable with good test coverage.
• Stay up-to-date with emerging technologies.
• May require being on‑call at times.

Qualifications

• Experience in FinTech, banking, or another closely related sector, with a strong understanding of financial systems and building within a regulated environment.
• 5+ years of full‑stack development experience, with a focus on high‑performance web applications, modern frontend frameworks (React), and microservices architectures.
• Proficiency in Python3, REST APIs, FastAPI, or similar technologies.
• Strong understanding of architecture, design patterns, and building scalable, testable code (unit & integration tests).
• Comfortable with containerization, monitoring, and cloud infrastructure.
• Used to working in a fast‑paced environment and a self‑starter who can autonomously drive complex projects.
• Excellent communication and collaboration skills in English.
• Bachelor's or Master's degree in Computer Science or equivalent experience.

Bonus Points

• Experience with Machine Learning or Data Science projects (e.g., LLMs).
• Working knowledge of Terraform.
• Experience with event‑driven architectures and event sourcing.
• Experience with Mobile Development, ideally in React Native.

Benefits

• Competitive salary and benefits package.
• Opportunities for professional growth in a leading European fintech company.
• High ownership and visibility on a critical business initiative.
• A collaborative, open, and dynamic environment.
• The chance to shape how global businesses connect with Ebury.

About the Company

Ebury is a global fintech firm dedicated to empowering businesses to expand internationally through tailored and forward-thinking financial solutions. Since our founding in 2009, we have grown to a diverse team of over 1,700 professionals across 40+ offices and 29+ markets worldwide.

Founded in 2009, we are headquartered in London with a presence in more than 29 markets worldwide. Cultural diversity is part of what makes Ebury a special place to be. From São Paulo to Dubai, Vancouver to Auckland, we enjoy sharing team experiences and celebrating success across the Ebury family. Hard work pays off: in 2019, Ebury received a £350 million investment from Banco Santander and has won internationally recognised awards including Financial Times: 1000 Europe's Fastest‑Growing Companies. None of this would have been possible without our greatest asset: our great people.

Enthusiastic, innovative and collaborative teams, always ready to disrupt and revolutionise the fast‑paced FinTech sector. At Ebury, we’re committed to building a workplace where everyone feels valued, supported, and empowered to thrive. We have active employee networks and ESG initiatives that reflect our inclusive culture, including our Women's Network, LGBTQIA+ Network, and Veteran's Network. We believe in inclusion.

We stand against discrimination in all forms and have no tolerance for the intolerance of differences that make us a modern and successful organisation. At Ebury, you can be whoever you want to be and still feel a sense of belonging no matter your story because we want you and your uniqueness to help write our future.

Please submit your application on the careers website directly, uploading your CV / resume in English.