Senior Full-Stack Engineer (Scala + React) - Lead & Build

Flextrade; Greater London; On-site; GBP 65,000 - 85,000; Full time

Job summary

A leading trading solutions provider in Greater London is seeking a Senior Web Developer to join its FlexONE team. The role involves managing key product surfaces across web and mobile applications, utilizing Scala with Play Framework and a React front-end. Responsibilities include delivering maintainable features, defining mobile migration paths, mentoring engineers, and ensuring high code quality. The successful candidate will thrive in a collaborative and agile environment focused on superior user experience and innovative technology.

Qualifications

• Experience building and deploying production web apps.
• Strong backend experience with Scala and Play Framework.
• Experience maintaining cross-platform mobile applications.

Responsibilities

• Deliver robust, maintainable features across the stack.
• Define migration path for the mobile app.
• Champion code quality and observability.
• Mentor engineers and assist with team growth.

Skills

Deep Full Stack expertise

Experience with React and modern TypeScript

Strong experience in Scala or any JVM language

Mobile capability

Good UX design

Tools

Jenkins

GitLab

SonarQube

IntelliJ IDEA

Job description

A leading trading solutions provider in Greater London is seeking a Senior Web Developer to join its FlexONE team. The role involves managing key product surfaces across web and mobile applications, utilizing Scala with Play Framework and a React front-end. Responsibilities include delivering maintainable features, defining mobile migration paths, mentoring engineers, and ensuring high code quality. The successful candidate will thrive in a collaborative and agile environment focused on superior user experience and innovative technology.