Senior Backend Engineer
Randstad
Urgent 6-month contract for a Senior Backend Engineer to build a privacy-first digital ecosystem for kids and families. Fully remote within the UK. Responsibilities include architecting and scaling backend systems that enforce safety, privacy, and parental control guardrails globally; collaborating with mobile, web, and product engineers to design modular, reliable interfaces; and maintaining quality with meaningful metrics like SLIs and SLOs. Requirements include core Java 8+ with production experience in GCP, strong system design, data structures, and algorithms, and comfort with SQL for ad-hoc investigations. Nice-to-haves include data engineering (Scala, Beam, Scio), Protocol Buffers, and performance tuning under heavy load.