cassandra engineer.

PSQR, a leading Danish software development company, is seeking a proactive Cassandra Engineer to take full ownership of their Cassandra/ScyllaDB operations and drive the infrastructure automation. If you thrive on fine-tuning systems, resolving bottlenecks, and designing high-availability strategies, this is your opportunity to make a significant impact on global traceability solutions.

the job:

As a Cassandra Engineer at PSQR, you will design, build, operate, and automate the underlying platform for our traceability solutions, ensuring high performance, stability, and international scalability.

This proactive DevOps role involves close collaboration with development teams to identify and resolve bottlenecks across the network stack, Kubernetes, and especially the database layer (Cassandra, Elastic Search, RabbitMQ, MySQL, and ZooKeeper).

The role involves travel for on-premise system installations at customer sites worldwide.

main responsibilities:

- Full ownership of Cassandra/ScyllaDB operations, including scaling, performance tuning, and schema design.
- Translating customer requirements into architectural configurations.
- Operate the production platform, including deployment, patching, monitoring, alerting, and incident response.
- Manage, operate, and troubleshoot RabbitMQ and manage/scale ElasticSearch clusters.
- Identify and resolve performance bottlenecks across the stack.
- Design and implement high availability, failover, and backup/restore strategies.
- Automate infrastructure setup and configuration using Infrastructure as Code (IaC) tools like Terraform and Ansible.
- Provide Linux system administration, including performance tuning and troubleshooting.

qualifications and competencies:

- Designing, scaling, tuning, and operating Cassandra clusters in high-performance environments.
- MySQL/MariaDB/other SQL technologies.
- Linux Administration: Ubuntu, CentOS/RHEL.
- ElasticSearch, RabbitMQ, Docker, Zookeeper.

The ideal candidate possesses a strong DevOps Mindset, demonstrated by their knowledge of HA, failover, and disaster recovery strategies, and an understanding of how Java and React components interact with the platform. You have experience with Infrastructure as Code (IaC) tools like Terraform and/or Ansible, and are familiar with Kubernetes and/or Proxmox, as well as cloud platforms such as GCP, AWS, and Azure.

With a background in SaaS environments, you are proactive, solution-oriented, and a team player.

application and contact

Randstad manages the recruitment process on behalf of the company. If the position has caught your interest, please apply for the role through this site.

For more detailed information regarding this position, please contact principal consultant Kasper Kjærgaard on +45 61 95 92 51. All inquiries will be handled confidentially.

about PSQR

PSQR is a Danish software development company that specialises in providing highly scalable software for storing, processing, and analysing vast amounts of traceability data to industry- as well as government customers. The software is modular and extensible which allows PSQR and our software integration partners to bring it into play for any product vertical all the way from raw materials, through processing, to finished goods, and finally recycling – establishing the complete traceability circle.

about Randstad

Randstad is the world’s largest talent company and a partner of choice to clients. As a Partner for Talent, we are committed to providing equitable opportunities to people from all backgrounds and helping them remain relevant in the rapidly changing world of work.

We have a deep understanding of the labour market and help our clients to create the high-quality, diverse and agile workforces they need to succeed. We support people to realise their true potential throughout their entire working life. This is what we do and what motivates us every day.

Randstad DK is part of the international Randstad Group. Every day, we help more than 600,000 people around the world find jobs. We specialise in finding, attracting, and retaining skilled talent to power businesses at speed and at scale. Randstad DK is a leader in this field, with offices in Copenhagen, Aarhus, Aalborg, and Kolding.