Senior Backend Engineer
The Senior Software Engineer will join a high-performing backend engineering team responsible for building and scaling modern, cloud-native platforms that power customer-centric financial products. You’ll play a key role in designing and delivering resilient, secure, and high-performance systems, working within collaborative squads focused on solving real-world problems at scale.
This role sits within an innovative, fast-growing environment that blends the agility of a startup with the backing and stability of a global financial institution. You’ll be instrumental in shaping architecture, influencing engineering standards, and mentoring engineers while delivering impactful solutions.
Company Highlights:
*Backed by a globally established financial institution with significant investment in digital innovation
*Startup-like environment with a strong engineering-first culture sitting on top of an established user base (circa 70M+ Users)
*Customer-centric mission focused on building modern financial products from the ground up
*Highly collaborative structure with cross-functional squads and real ownership
*Strong emphasis on diversity, inclusion, and continuous learning
*Cutting Edge Technology - Java 25 and Kotlin, cloud-native infrastructure as well as unlimited Claude 4.6 usage
Role Overview:
Opportunity to be a founding engineer as part of a Greenfield build out of a Fintech, backed by a major Investment Bank. You will have autonomy and ownership of the platform with the scope of influencing architectural decisions and seeing it through to production.
Key Responsibilities:
*Design and build scalable, high-quality backend systems using modern engineering practices
*Apply domain-driven design principles to create robust and adaptable services
*Ensure systems are resilient, fault-tolerant, and free from single points of failure
*Develop secure, production-ready code with a focus on performance and reliability
*Own the full lifecycle: from design and development to deployment and optimisation
*Troubleshoot production issues and implement long-term fixes to prevent recurrence
*Enable seamless, zero-downtime deployments for critical services
*Optimize data access patterns and storage solutions for performance and scalability
*Continuously improve system observability, monitoring, and operational excellence
*Mentor engineers and contribute to a strong engineering culture
Tech Stack:
*Strong experience with JVM-based languages (Java and/or Kotlin)
*Experience building microservices and distributed systems at scale
*Cloud-native development (AWS, GCP, or Azure)
*Containerization and orchestration (Docker, Kubernetes)
*CI/CD pipelines and modern DevOps practices
*Experience with event-driven architecture and messaging systems (e.g. Kafka)
*Strong understanding of APIs, RESTful services, and system design
*Database experience (SQL and/or NoSQL)
*Familiarity with observability tools and monitoring frameworks
Ideal Candidate Profile:
*Strong problem-solving mindset with the ability to take ownership of complex challenges
*Passion for clean code, maintainability, and long-term system design
*Collaborative approach with a focus on knowledge sharing and team success
*Adaptable and comfortable working in fast-paced, evolving environments
*High standards for engineering quality and ethical decision-making
*Commercial awareness and interest in fintech or digital banking