Arrows Group

Scala Developer - Contract (Inside IR35 | Up to £650 per day) My client is looking for a talented Senior Scala Developer to join their high-performing tech team. This is a brilliant opportunity to work on complex, large-scale systems that keep data flowing seamlessly across critical platforms. What You'll Do Design, build, test, and maintain software that integrates and orchestrates data across key components Deliver reliable, secure, and observable systems with a strong focus on automation ("you build it, you run it" mindset) Collaborate with stakeholders to shape user stories and define acceptance criteria Work closely with Principal Engineers and Architects to align with broader technical goals Support and mentor junior developers, sharing knowledge and best practices What You'll Bring Proven experience delivering production-grade, complex applications Strong background in Scala, ideally within the Akka/Pekko ecosystem Experience with Docker, Kubernetes, and cloud platforms Solid Test-Driven Development skills and understanding of testing at all levels Familiarity with CI/CD tools such as Jenkins or TeamCity Experience working in agile environments (Scrum or Kanban), ideally with pair programming exposure A proactive mindset, strong communication skills, and a genuine passion for collaboration If you're a Scala enthusiast who loves solving challenging problems and wants to work on systems that matter, I'd love to chat!

Senior Performance Tester - Non-functional - 3 month contract - paying £550 Inside IR35 - Hybrid (2 days a week) We're looking for an experienced Senior Performance Tester to join a high-performing team working on a global streaming platform that powers millions of users across video-on-demand and live services. What you'll do: Develop and maintain a Gatling-based performance testing framework integrated into CI/CD pipelines. Define non-functional requirements and performance acceptance criteria. Analyze performance test results and production metrics to identify trends, risks, and improvements. Work with modern technologies including Docker, Kubernetes, Kafka, and NoSQL databases. Mentor junior testers and drive continuous improvement in performance testing practices. What we're looking for: 5+ years' experience in non-functional/performance testing for large-scale applications. Hands-on experience with Gatling and open-source performance tools. Strong knowledge of CI/CD tools (Jenkins, GitHub Actions, Gradle/Maven). Skilled in monitoring/logging with Prometheus and Grafana. Proficiency in Scripting languages (Scala, Python, Shell). This role offers the chance to make an impact on a global platform, work with cutting-edge tech, and collaborate with a talented cross-functional team.