Shape the utilities market of the future with us!

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. What is the role about?

Key Responsibilities Design and execute load, stress, scalability, spike, and failover performance tests for HES/MDM product

Create realistic test scenarios covering:

ZONOS API and Southbound API

VEE processing

MDUS / data ingestion flows

Device events, alarms, meter reads, topology, and profile data

Kafka/streaming pipelines

Database-heavy operations

ZCP user workflows where relevant

Define performance KPIs such as:

response time throughput transactions per second message ingestion rate processing latency

CPU/memory usage database load

Kafka lag error rate queue depth

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

APIs database queries

Kafka topics/partitions backend services

VEE jobs process engine network and infrastructure

JVM/container resources

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. We are always looking for support in the following areas:

Your Mission & Impact

Your Role at a Glance

Required skills and qualifications

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

REST APIs authentication flows asynchronous processing queues and event streaming distributed systems microservices performance behavior

Experience with monitoring and observability:

Prometheus

Grafana

JVM or container metrics

Good knowledge of databases and query performance, preferably in addition to good knowledge about system setup:

PostgreSQL

Oracle

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:

Python

JavaScript

Groovy

Bash

Java

Preferred skills and qualifications

Skills with

Kafka performance testing

AMI / smart metering systems

MDMS / MDM platforms

VEE validation and estimation workloads

DLMS/COSEM concepts large-scale device simulation

API Director / ReadyAPI

Kubernetes or containerized environments

CI/CD integration for performance tests.

Your profile

What You Bring to the Team

Why us?

Sounds interesting? Great, let’s get to know each other. Send your application and let us know why we could be a great match!

Why You’ll Love It Here

Cuculus GmbH Germany | Lindenstraße 9-11, 98693 Ilmenau | Großer Brockhaus 1, 04103 Leipzig | Anger 63, 99084 Erfurt | United Arabic Emirates | Swiss Tower, Cluster Y, Jumeirah Lakes Towers, Dubai | South Africa, 16 North Road, 2196 Gauteng, Johannesburg

About us

Cuculus is the key to providing utilities to all, while protecting the world’s precious resources. Jointly with our international partner network, we provide cutting-edge software and technology solutions to address utility challenges now and in the future. Cuculus will never tire of creating innovative technology and services that enable utilities and organisations to successfully transition to a new era of providing and managing electricity, water, and gas.

The work we do is important for individuals, cities, and entire nations. Our work is responsible, but we have fun with it, too.

📌 Load & Performance Engineer (Bengaluru)
🏢 Cuculus
📍 Bengaluru