> Markdown version of [/jobs/ext/4612847-senior-java-developer-_london-uk](https://www.wearedevelopers.com/jobs/ext/4612847-senior-java-developer-_london-uk). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Developer _London, UK - **Company:** Infinity Quest - **Location:** London, UK (Remote available) - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, Software Applications, Microsoft Azure, Bash Shell, Code Review, Databases, Continuous Integration, Software Debugging, Github, PostgreSQL, Redis, Prometheus, Azure Machine Learning, Message Oriented Middleware, Web Applications, Datadog, Performance Testing, Delivery Pipeline, Large Language Models, Grafana, Backend, Event Driven Architecture, Cassandra, Apache Kafka, Google Gemini, Restful APIs, Docker - **Published:** November 7, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5955971859 ## About the Role * Overall experience 11+ * Relevant experience 11+ * Mandatory skill required - + Strong hands-on experience in Java and Spring + Experience with AWS and AWS-native services + Experience developing and deploying web applications and RESTful APIs + Strong knowledge of event-driven systems and asynchronous messaging using Kafka + Database and persistence experience with Cassandra/AWS Keyspaces, Redis, and PostgreSQL/DSQL + Experience with Docker and Kubernetes + Knowledge of CI/CD and software delivery pipelines, including GitHub Actions + Experience with automated testing frameworks, including non-functional testing + Knowledge of Unix/Linux and Bash scripting + Experience in software solution design, debugging, production support, and code reviews + Ability to work effectively in cross-functional and cross-team environments * Good to have skills Observability tools: Datadog, Prometheus, and Grafana AI/ML platforms and technologies: AWS SageMaker, Azure, and Gemini LLMs Experience or confidence in AI-assisted and agentic software development Knowledge of security, resiliency, performance, and other non-functional requirements Experience maintaining highly scalable and reliable backend systems Strong analytical thinking, creative problem-solving, and attention to detail Self-driven attitude with an interest in learning emerging technologies and engineering best practices * Required level of additional language English