Senior Real-Time Java Engineer - Payments & Microservices

Fynity

Greater London

Hybrid

GBP 90,000 - 115,000

Full time

14 days+

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Benefits offered by this job

Hybrid working (1 day per week in city

20% annual bonus

Job summary

Fynity is hiring a hands-on Java Engineer to build high-performance, distributed systems for real-time payment processing. You will work at the heart of a modern payments infrastructure, delivering mission-critical platforms used by Tier 1 banks globally.

You’ll join an engineering team that designs low-latency, event-driven payment systems processing millions of transactions daily. Expect collaboration with architects, engineers, and client teams in an agile environment to deliver robust

Qualifications

Experience developing high-performance Java applications for real-time payment processing.
Proven ability to design scalable, event-driven microservices.
Solid understanding of payments and messaging technologies.
Familiarity with TDD/BDD and modern CI/CD practices.
Experience with NoSQL databases such as MongoDB.

Responsibilities

Design and develop high-performance Java applications for real-time payment processing.
Build scalable, event-driven microservices using modern Java technologies.
Develop asynchronous, message-driven systems with resilience and performance in mind.
Design clean, maintainable APIs and distributed architectures.
Collaborate with architects, product teams and client stakeholders to deliver solutions.
Contribute to design discussions, code reviews and engineering best practices.
Operate within Agile (Scrum/Kanban) delivery teams.