Senior Staff Software Engineer, Global Payments Platform

Paymentology; Greater London; Hybrid; GBP 110,000 - 160,000; Full time

Job summary

Paymentology is seeking a Staff Software Engineer to provide technical leadership across multiple teams and domains. You’ll shape strategy, guide architectural decisions, and help teams build reliable, scalable systems powering payments globally.

You will mentor senior engineers, establish engineering standards, and drive initiatives for reliability, observability, and operational excellence while collaborating with Engineering, Product, and Operations to resolve complex challenges.

Qualifications

• Extensive experience designing and operating highly available, distributed backend systems.
• Proven success leading technical initiatives across multiple teams.
• Strong expertise in software architecture, system design, and engineering best practices.
• Experience with microservices, APIs, event-driven architectures, relational databases, and cloud platforms (preferably AWS).
• Knowledge of CI/CD, Infrastructure as Code, containerisation, observability, and automated testing.
• Strong communication skills with the ability to influence technical decisions and mentor experienced engineers.
• Professional fluency in English.
• Java experience is highly valued; fintech or regulated environments are beneficial but not essential.
• Bachelor’s degree or equivalent practical experience; typically 10+ years of experience.

Responsibilities

• Drive technical strategy across engineering domains and cross-team initiatives.
• Shape scalable architectures that support long‑term product and business goals.
• Translate complex technical challenges into clear, practical solutions.
• Establish engineering standards, architectural patterns, and best practices across teams.
• Identify and mitigate long-term risks around reliability, scalability, security, and maintainability.
• Partner with Engineering, Product, and Operations to influence roadmaps and delivery.
• Mentor senior engineers and strengthen technical leadership across the organisation.
• Lead initiatives that improve engineering quality, testing, observability, and operational excellence.
• Contribute hands-on to critical systems where your expertise delivers the greatest impact.

Skills

Distributed systems

Technical leadership

Java

AWS

CI/CD

Observability

Mentoring

English fluency

Education

Bachelor's degree in Computer Science / Software Engineering

Tools

Docker

Kubernetes

Job description

Paymentology is seeking a Staff Software Engineer to provide technical leadership across multiple teams and domains. You’ll shape strategy, guide architectural decisions, and help teams build reliable, scalable systems powering payments globally.

You will mentor senior engineers, establish engineering standards, and drive initiatives for reliability, observability, and operational excellence while collaborating with Engineering, Product, and Operations to resolve complex challenges.