Senior Java Developer - Payments

Salary: £58,000 - 98,000 per year

Requirements

At least five years of software development experience using Java

Experience with Spring Boot and microservices

Experience with messaging systems, ideally Kafka and another technology such as RabbitMQ or IBM MQ

Experience integrating APIs using REST and GraphQL

Knowledge of relational and non-relational databases

Experience developing systems using agile methodologies

Strong analytical and logical reasoning skills

A proactive approach and the ability to learn quickly

A completed bachelors degree in systems engineering, computer engineering, mathematics, physics, economics, business administration, or a related discipline

Desirable experience: knowledge of UK or international payment standards, including ISO 20011, SWIFT, and MX messaging

Desirable experience: experience with Docker and Kubernetes

Desirable experience: knowledge of AWS or another cloud platform

Desirable experience: experience with performance-testing tools such as Gatling or JMeter

Desirable experience: familiarity with Jira and Confluence

Desirable experience: DevOps and continuous-integration experience using tools such as Gradle, GitHub Actions, and Sonar

Responsibilities

Developing and maintaining payment systems and platform services

Building microservices, middleware applications, orchestrators, and automated tests

Integrating systems through APIs and messaging technologies

Providing technical guidance and promoting software engineering best practices

Overseeing application monitoring and supporting production implementations

Providing third-line support for complex application issues

Improving application performance, observability, and resilience

Working proactively within an agile development environment

Technologies

AWS

Cloud

Confluence

DevOps

Docker

GitHub

Gradle

GraphQL

IBM

Support

JIRA

Java

JMeter

Kafka

Kubernetes

REST

RabbitMQ

Spring

Spring Boot

Swift

microservices

Backend

Sonar

More

We are part of a dynamic ecosystem of companies including VASS, NATEEVO, Serbatic, vdSHOP, T4S, Comunytek, ECENTA, and CRI group, with over 4,000 talented people driven by excellence and innovation. Through the E4 Agile Method, we support large enterprises in their digital transformation journey from strategy to operation. We are committed to social impact through the VASS Foundation, established in 2019 to support research and training in digital talent, and we allocate 2% of our profits while encouraging our team to dedicate 1% of their time to solidarity actions. We are hiring a Senior Java Software Engineer on an initial six-month contractor basis to help develop and support modern payment-processing systems using Java, Spring Boot, and microservices.

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