Staff Software Engineer

About this role

The International Card & Risk Services Technology (ICRST) organization delivers the technology strategy, platforms and solutions that underpin International Card Services and Credit & Fraud Risk across global markets. With approximately 900 colleagues across the UK, US, Canada, India and Mexico, ICRST plays a critical role in shaping enterprise-wide technology outcomes and driving compliance, resilience and innovation

Staff Software Engineer leads the design and implementation of scalable software solutions, provides technical mentorship, oversees platform integration and maintenance, conducts design reviews, collaborates with cross-functional teams, and optimizes development processes to ensure high-quality, reliable, and efficient software systems.

Basic Qualifications

• Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience (advanced degree preferred)
• 8+ years of software engineering experience with strong expertise in **Java (JDK 11+)** and backend systems
• Proven experience designing and operating **high-scale, low-latency distributed systems**
• Strong understanding of **data systems** (relational and NoSQL) and core computer science fundamentals (algorithms, system design)
• Experience building **enterprise-grade APIs** (REST/gRPC) and event-driven architectures (e.g., Kafka)
• Hands-on experience with **cloud platforms** (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)
• Experience with **modern software development practices** (SDLC, CI/CD, testing, code quality, observability)
• Demonstrated ability to **lead, mentor, and influence engineers** and drive technical excellence
• Strong problem-solving skills with the ability to navigate complex, ambiguous systems

Domain Expertise

• Deep understanding of **payment processing systems** (authorization flows, card networks, ISO 8583, transaction lifecycles)
• Experience building **scalable, fault-tolerant systems** at enterprise scale
• Experience ...