information about the client:
- name - ionity
- description - emobility
detailed description of the project:
- as much information about the project as it's possible
start date: ASAP
duration (of the project): 6months
technologies used: what is a tech stack on the project
the role includes (responsibilities): what will be the responsibilities of a new colleague?
requirements (skills, experience,..):
language requirements:
- English - fluent
- German - advantage
travelling: not required / required (weekly, monthly,…)
location: full remote
seniority: senior
priority: high
monthfreelance MD rate
Important to consider:
The duration of the project assignment is limited to 6 months, with the option to extend.
The following criteria should be considered for the election of the candidate:
- 5+ years of hands-on experience in load and performance testing, ensuring scalability, stability, and reliability of complex systems under varying workloads.
- Strong expertise in designing and executing performance test strategies, including load, stress, spike, and endurance testing.
- Proficient with performance testing tools such as JMeter, Gatling, k6, or LoadRunner to simulate realistic user behavior and traffic patterns.
- Deep understanding of performance metrics (e.g., response time, throughput, latency, error rates) and the ability to analyze results to identify bottlenecks and optimization opportunities.
- Experienced in performance engineering practices, including workload modeling, capacity planning, and defining performance benchmarks (SLOs/SLAs).
- Solid understanding of modern backend architectures, including microservices, distributed systems, and API-driven designs (REST), with a focus on performance implications.
- Hands-on experience testing APIs and asynchronous systems, including message queues such as Kafka or RabbitMQ.
- Strong experience working in cloud environments (AWS, Azure, or GCP), with a good understanding of cloud-native architectures and scalability patterns.
- Practical experience with containerization (Docker) and orchestration platforms (e.g., Kubernetes), including understanding of scaling, resource management, and performance implications.
- Hands-on experience integrating performance testing into CI/CD pipelines (e.g., Jenkins, GitHub Actions, GitLab CI), enabling continuous performance validation.
- Experience with Infrastructure as Code tools (e.g., Terraform, CloudFormation) to provision and manage performance test environments.
- Familiar with monitoring and observability tools (e.g., Dynatrace, Grafana, Prometheus, AppDynamics), including setting up dashboards and analyzing system behavior during performance tests.
- Good understanding of cloud networking and load balancing concepts, enabling effective identification of performance bottlenecks in distributed environments.
- Experience collaborating closely with DevOps and platform teams, contributing to automation, environment setup, and performance optimization.
- Strong analytical thinking and problem-solving skills, with a focus on root cause analysis and continuous performance improvement.
- Proactive and self-driven mindset, taking ownership of performance quality from early design stages through production monitoring.
- Fluent in English, with excellent communication skills to present insights and collaborate effectively in cross-functional and international teams.
Start Date:
· Preferably ASAP
· Please include the earliest possible start date of the candidate