Seeking an experienced Application Engineer / Administrator with expertise in Elasticsearch, Kubernetes, and Docker to support enterprise applications in a dynamic IT environment.
Experience
8–15 yrs
Location
NA
Hybrid · South Holland, Netherlands The
Experience
8–15 yrs
Location
NA
Hybrid · South Holland, Netherlands The
The Brief
TITLE
Application Engineer / Administrator
TEAM
Engineering
TYPE
Freelance
POSTED
Nov 12, 2026
JOB ID
01a1cebf
TITLE
Application Engineer / Administrator
TEAM
Engineering
TYPE
Freelance
POSTED
Nov 12, 2026
JOB ID
01a1cebf
We are seeking an Application Engineer / Administrator to join our team. The role involves deploying, administering, and supporting enterprise applications in a medium to large IT infrastructure environment.
Key responsibilities
• University studies of at least 4 years plus at least 9 years of relevant professional experience after the
diploma; or university studies of at least 3 years plus at least 10 years of relevant professional
experience after the diploma.
• At least 6 years as an IT professional in mid-size or large IT infrastructure environments, including
application deployment, support and maintenance.
• At least 5 years in application administration.
• At least 2 years with microservices, container orchestration and container-based stacks such as
Docker or Kubernetes.
• At least 2 years administering and supporting Elasticsearch.
• At least 5 years working with enterprise Microsoft or Linux server solutions.
Mandatory knowledge and skills
• Deployment and administration of Elasticsearch clusters.
• Microservices, container orchestration and container stacks using Kubernetes, Helm charts, Docker
and Rancher.
• Configuration-management concepts and technologies such as Puppet, Ansible or Chocolatey.
• Shell and/or PowerShell scripting.
• ITIL processes, including incident, change and release management.
Desirable experience and knowledge
• At least 2 years with public or hybrid cloud services and solutions, Azure or AWS.
• DevOps practices.
• Relational databases such as Microsoft SQL Server or PostgreSQL and their interaction with
applications.
• Kong API Gateway.
• Relevant certifications in the technologies listed above.
Typical tasks and responsibilities
• Install, configure and administer applications in production and non-production environments.
• Monitor applications, tune performance and continuously improve service efficiency and quality.
• Provide application support and maintenance, including incident, change, release and problem
resolution.
• Write and validate application procedures, troubleshooting guides, backup plans and restore plans.
• Automate recurring system-administration procedures and produce installation and technical-
support documentation.
• Contribute to the structure, maintenance and development of the ICT Operations technical
knowledge base.
• Report on application availability, performance, capacity and usage when required.
Interested? Apply now at [email protected]
About the company
Phoenix Tech is a Belgium-based technology consulting and software development company dedicated to helping businesses innovate, scale, and succeed in the digital era.
We partner with startups, SMEs, and enterprises to transform ideas into powerful digital solutions through technology consulting, custom software development, cloud solutions, AI-powered applications, IT staffing, and digital transformation services.
Our mission is simple— deliver technology that creates measurable business value. Whether you're building a new product, modernizing legacy systems, expanding your engineering capacity, or accelerating your digital transformation journey, Phoenix Tech provides the expertise, talent, and execution needed to achieve your goals.
At Phoenix Tech, we combine strategic thinking with hands-on technical excellence. Our team works closely with clients to understand their business challenges and develop scalable, secure, and future-ready solutions that drive growth, efficiency, and competitive advantage.
What We Deliver
* Custom Software Development
* Web & Mobile Application Development
* Cloud & DevOps Solutions
* AI & Data-Driven Applications
* IT Consulting & Digital Transformation
* Technology Talent & Team Augmentation
* Enterprise System Integration
* Product Development & Innovation
Why Clients Choose Phoenix Tech?
✔ Business-focused technology solutions
✔ Agile and transparent delivery approach
✔ Access to global technology talent
✔ Scalable engagement models
✔ Commitment to quality, security, and innovation
✔ Long-term partnership mindset
At Phoenix Tech, we don't just build software—we help businesses unlock new opportunities, solve complex challenges, and create lasting digital impact.
Email us at: [email protected]