Senior Kotlin/Scala Engineer

Senior Scala/Kotlin Engineer 6-12 months Hybrid - London (2-3 days per week on site) Paying up to £600 per day (Inside IR35) Overview We are supporting a global tier 1 bank on the hire of a Scala/Kotlin Engineer to join a high-performing engineering team delivering business-critical systems. This is a hands-on engineering role focused on building and evolving distributed Back End systems in a high-performance environment.You will be working on a distributed calculation engine used for complex index-level computations based on quantitative models.Distributed, manager-worker architectureBuilt using Scala and Python componentsHigh requirements around: o Performance o Accuracy o Security This is a feature development role, not BAU/support, with significant scope to influence system design and evolution.Role ResponsibilitiesDesign, build, and evolve core distributed servicesDeliver high-quality code with strong test coverage and reliabilityContribute to secure system design and implementationWork closely with engineers and stakeholders to define solutionsParticipate in code reviews and technical design discussionsOwn delivery of complex features end-to-endCore RequirementsStrong experience as a senior Back End engineerProven hands-on experience with: o Scala OR Kotlin (either is acceptable)Strong understanding of: o Type systems o Concurrency o Functional and/or object-oriented programmingExperience building distributed Back End systemsStrong engineering practices: o Clean code ..... full job details .....