We are looking for a “ Load and Performance Engineer” to design, execute, analyze, and report performance tests for the ZONOS ecosystem with it’s modules/Connectors related to MDM & HES , APIs, streaming services, databases, and integration components.
The engineer will define realistic load profiles, simulate production-like traffic, identify bottlenecks, measure system capacity, and provide performance recommendations before release or customer deployment.
Key Responsibilities
Design and execute load, stress, scalability, spike, and failover performance tests for HES/MDM product
Create realistic test scenarios covering:
Define performance KPIs such as:
Maintain load test scripts using tools such as “ JMeter, k6, Simulator and Mock serve”
Monitor performance using tools such as “ Prometheus, Grafana”.
Analyze bottlenecks across:
Prepare detailed performance reports with findings, risks, recommendations, comparison with previous versions and release readiness conclusions.
Work with QA, DevOps, backend developers, product owners, and customer delivery teams to define acceptance criteria and performance baselines.
Bachelor’s degree in Computer Science, Engineering, Information Systems, or equivalent experience.
3+ years of experience in performance testing, load testing, or performance engineering.
Had experience in the Energy Management utility (Meter data management, HES ….)
Strong understanding of:
Experience with monitoring and observability:
Good knowledge of databases and query performance, preferably in addition to good knowledge about system setup:
Experience testing high-volume data ingestion, messaging, or IoT/AMI/utility platforms is highly preferred.
Ability to analyze logs, metrics, traces, and system behavior under load.
Strong scripting skills in at least one language:
Skills with:
We provide software solutions since 2007 for the energy sector and beyond both as in-house installations or as cloud services. Our products combine cutting edge technology with in-depth market expertise and sector knowledge.
The ZONOS™ IoT Platform, our core solution, enables to control millions of devices and to process their incoming data. This industrial scale IoT Platform is the basis for tailored solutions that we develop in close cooperation with our customers.
Our cooperative working style is reflected in close and longstanding partnering with system integrators, device manufacturers, and software vendors.
Cuculus' origin and current head office in Ilmenau (Thuringia, Germany) is supplemented by a further office in Leipzig (Saxony, Germany) and in Erfurt (Thuringia, Germany) as well as by European sales offices.
Our Partner Network is completed by local and global partners serving a growing customer base worldwide. This network shares our commitment to provide high quality cutting edge solutions to our customers.
Cuculus is actively contributing to addressing the key challenges in the energy markets and has joined different associations to contribute to this.
