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 More ❯
hands-on Performance Test Engineer with Strong Python and automation expertise to design, build, and execute the performance testing strategy for a high-scale, ad-serving platform built on Akka-based Java microservices. Required to build automated load frameworks using Locust (Python). You'll work closely with developers and DevOps engineers to simulate realistic traffic at scale, ensure sub … Grafana, and OpenTelemetry to analyze system bottlenecks. Develop SLA/SLO dashboards and integrate performance gates into CI/CD pipelines. Collaborate with DevOps and developers to tune JVM, Akka, thread pools, GC, caching, autoscaling, and database performance. Document test approaches, scenarios, results, and provide clear, actionable tuning recommendations. Tech Stack: Load Tools: Locust (Python), JMeter; k6 or Gatling (nice … to have). Languages: Python, Bash, Java (Maven/Gradle, JVM tuning basics). Infrastructure: Docker, Kubernetes, Terraform. Observability: CloudWatch, Prometheus, Grafana, OpenTelemetry. Architecture: Akka-based asynchronous Java microservices. Logistics: Start date: 17 November 2025. Duration: 6 months (extension possible). Employment type: Full-Time (Freelance allowed). Location: Remote (Europe). If you're passionate about performance engineering and More ❯
rate (TBC) IR35 TBC Duration initially 3 months but ongoing Senior DevOps Engineer with expertise in AWS platform engineering for high-throughput, low-latency systems. Hands-on expertise in Akka/Java microservices, JVM tuning, and asynchronous, event-driven architectures. If you are suitable and passionate about scaling distributed systems and optimizing cloud performance, then this could be for you. … 5M+ user load. Apply security-by-design using IAM least privilege, KMS, Secrets Manager, WAF/Shield, and CIS compliance. Collaborate with developers and performance engineers to tune JVM, Akka, thread pools, GC, and infra limits. Drive cost optimization through tagging, reporting dashboards, and resource management. What We're Looking For Senior DevOps Engineer with expertise in AWS platform engineering … of senior-level AWS platform engineering for high-throughput, low-latency systems Proven experience owning production environments with 10k-1M+ concurrent users and 99.9x SLOs Hands-on expertise in Akka/Java microservices, JVM tuning, and asynchronous, event-driven architectures Strong grasp of resilience techniques (circuit breakers, retries, chaos engineering) Fluent in English (C1 level) Nice to have - Java development More ❯
