Javascript jobs in United Kingdom

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.

As a Lead Software Engineer at JPMorganChase within the Wealth Management Controls Technology organization, you are an integral part of an agile team that works to enhance, build, and deliver trusted market‑leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for conducting critical technology solutions across multiple technical areas within various business functions in support of the firm’s business objectives.

• Executes software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems
• Creates secure and high-quality production code
• Contribute to technical documentation, including service APIs (using Swagger), and ensure robust logging, auditability, security, and monitoring features.
• Apply knowledge of service level indicators and objectives to proactively address issues and improve system reliability.
• Support the adoption of SRE best practices within the team as needed.
• Contributes to software engineering communities of practice and events that explore new and emerging technologies

• Hands‑on practical experience in system design, application development, testing, and operational stability
• Hands‑on programming/application development experience JAVA, Spring Boot, REST/API. Proficiency in: SQL/Hibernate, Messaging (MQ & Kafka), application performance testing and tuning, Agile
• Must have excellent analytical, technical, and oral communication skills
• Experience with JavaScript, ReactJS, or similar scripting language
• Good knowledge of AWS offerings (S3, EC2, RDS, Lambda ,Terraform etc).
• Good knowledge of Docker, Kubernetes.
• Ability to troubleshoot networking technologies and resolve common issues.
• Strong communication skills and ability to work collaboratively in large teams. Proactive problem‑solving mindset and eagerness to learn new technologies.
• Ability to identify and implement innovative solutions to meet business needs.

• Experience in Spark, Scala, testable, and efficient code
• Experience applying site reliability engineering (SRE) principles to software development.
• Understanding of authentication and authorization technologies (OAUTH, Kerberos).
• Exposure to service level objective alerting and telemetry collection.
• Experience with observability tools (Grafana, Dynatrace, Prometheus, Datadog, Splunk) and monitoring best practices is a plus.