Senior Software Engineer

At Paymentology, we’re building the global payments platform of the future. Our mission is to empower banks, fintechs, and innovators with modern, scalable, cloud-first issuing and processing solutions. As a fully distributed organisation operating across 60+ countries, we move fast, think globally, and build technology that supports millions of transactions daily. 
Our Engineering culture values autonomy, excellence, ownership, and curiosity. We encourage engineers to lead solutions end-to-end, mentor others, and continuously improve how we build and operate software. If you’re excited by solving complex global payments challenges and enjoy working with smart, kind, mission-driven people — this is the place for you. 

What you get to do:

We’re looking for a Senior Software Engineer to design, build, and scale Java backend services that power our global payments infrastructure. You’ll lead end-to-end delivery, contribute to technical strategy, and help raise the engineering bar across the organisation. 
Lead the design and development of backend services, distributed systems, and APIs. 
Own features end-to-end (architecture, coding, testing, observability, and deployment). 
Write clean, maintainable, well-tested code, following engineering best practices and test-driven development. 
Break down complex technical work into manageable chunks 
Work in a collaborative, cross functional, agile team environment 
Mentor associate and mid-level engineers, fostering a culture of technical excellence 
Identify, document, and deliver technical improvements (performance, reliability, scalability). 
Participate in incident response and support rotations 
This role includes participation in an on-call rotation, with on-call duties scheduled for one week out of every five weeks.

Requirements

Experience:
Significant commercial experience with modern Java 15 (We’re currently moving to 21. As a guide, multiple projects with 5+ years of experience. Proven experience designing, building and maintaining distributed systems and microservices) 
Deep understanding of Object-Orientated programming 
Familiarity with event-driven architectures or Domain Driven Design. 
Love to work using TDD 
Strong grasp of relational databases (PostgreSQL, MySQL) and data modeling. 
Solid understanding of cloud infrastructure (AWS preferred), containerisation, CI/CD, and Infrastructure-as-Code. 
Nice to have, but not critical, experience in fintech, payments, or other high-throughput/regulated domains. 
Most importantly, a desire to learn, grow and collaborate with an amazing team 

What you can look forward to:

100% remote, globally distributed team 
We value engineers that closely understand our customers and business 
High-impact role supporting real-time global payments 
Growth path toward Senior Engineer 2, Staff Engineer, or Engineering Manager 
A diverse, mission-driven engineering culture