Job Specifications
Role: Java Fullstack Developer
Location: London, UK
Onsite- 5 Days/Week at office
Hiring type- Permanent Role
Must have: payment processing platforms, Java, Spring, Kafka, SQL / NoSQL databases
Job Summary
We are seeking a highly skilled Full Stack Developer with strong experience in Java, Spring Boot, Kafka, and API Management platforms (Apigee) to build and support scalable, secure, and high-performance applications in the payments / banking domain. The ideal candidate will have hands-on experience with PayEdge or payment processing platforms, RESTful APIs, and modern front-end technologies.
Key Responsibilities
Backend / Microservices
Design, develop, and maintain Java-based microservices using Spring Boot
Implement RESTful APIs and integrate with internal and external systems
Build event-driven architectures using Apache Kafka (producers, consumers, streams)
Ensure high availability, scalability, and performance of services
Implement security using OAuth2, JWT, API keys, and role-based access
API Management & Integration
Design, publish, and manage APIs using API Gateway / Apigee
Configure API policies (security, throttling, caching, monitoring, transformation)
Manage API lifecycle, versioning, and documentation
Integrate APIs with PayEdge / payment gateways / core banking systems
Frontend / Full Stack
Develop responsive UI components using Angular / React / JavaScript / TypeScript
Integrate front-end applications with backend APIs
Ensure cross-browser compatibility and performance optimization
Payments / Banking Domain
Work on payment processing flows, transaction orchestration, and reconciliation
Support integrations with PayEdge, ACH, RTP, wire, or card-based payment systems
Ensure compliance with PCI-DSS, SOX, and regulatory standards
DevOps & Quality
Write unit, integration, and API tests (JUnit, Mockito, Postman)
Support CI/CD pipelines using Jenkins / GitHub Actions / GitLab
Containerize applications using Docker and deploy to Kubernetes / Cloud
Monitor and troubleshoot production issues
Required Skills & Qualifications
8+ years of experience in software development
Strong proficiency in Java (8/11/17) and Spring Boot
Hands-on experience with Kafka and asynchronous messaging
Experience with API Gateway solutions (Apigee preferred)
Strong knowledge of REST APIs, JSON, OpenAPI/Swagger
Experience with SQL / NoSQL databases (Oracle, PostgreSQL, MongoDB)
Frontend experience with Angular or React
Understanding of payment systems and financial services architecture
About the Company
We provide Software Development, Maintenance and Other Related IT Services, across spectrum, depending on individual client’s needs and dependability on us. Being a young and vibrant software solution company, we believe in harnessing the talent and experience of each member of our team to provide a unique flavor to our offerings within practical considerations and as per need and flexibility as expressed by our clients.
We believe in working as a true partner and demonstrate transparency in all our dealings and conduct wi...
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