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Principal Developer @ Spectrum It Recruitment Limited

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About this role

Salary: £70,000 - 70,000 per year

Requirements: Strong experience with Java or Kotlin on the JVM, ideally Java 11Strong experience with Spring BootExperience in enterprise backend developmentExperience building REST APIs and microservicesExperience with SQL and NoSQL databasesExperience with Docker and KubernetesExperience with Git and modern development practicesComfortable operating at Principal level, making technical decisions and solving complex problemsAbility to mentor and support other engineersDesirable experience with telecommunications billingDesirable experience with AzureDesirable experience with CI/CDDesirable experience with LinuxDesirable experience with Redis or ElasticsearchDesirable experience with additional programming languages Responsibilities: Stay hands-on with backend development, with around 90% of the role focused on codingWork on a large, high-throughput platform with APIs, Azure Cloud and an event-driven architectureHelp shape technical direction, engineering standards and architectureMentor other engineers and support their developmentEvaluate new technologiesWork closely with customers and stakeholders to turn requirements into robust technical solutions Technologies: AzureBackendCI/CDCloudDockerElasticSearchGitSupportJVMJavaKotlinKubernetesLinuxNoSQLRESTRedisSQLSpringSpring BootmicroservicesAngularDevOpsMongoDBPostgreSQLRabbitMQReactRubyTypeScript More:

We are a growing business operating in the telecommunications and online payments space, building a large, high-throughput platform. You will join a 16-person R&D development team made up largely of senior engineers in a remote-first role. The position is based around Newbury, with an expectation of around 2-3 office visits per year, though you are welcome to spend more time there if you prefer. We offer 24 days of holiday plus your birthday off, private medical cover, life assurance, critical illness cover, an employee assistance programme and a contributory pension. We also run monthly and quarterly all-hands events, including summer and Christmas gatherings.

last updated 34 week of 2026

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