Application Engineer - Administrator at InventYOU AB

We are seeking a highly experienced Senior Application Engineer / Administrator to join our expanding team supporting complex enterprise infrastructure and application environments. This role is ideal for professionals with a strong foundation in application lifecycle management, automation, and containerized systems, who are eager to contribute in large-scale, multicultural IT environments.
You will be responsible for the deployment, configuration, performance tuning, and support of mission-critical applications, while also helping to drive DevOps best practices and continuous improvement in service quality

Your key responsibilities will be:

• Installing, configuring, and administering applications across production and non-production environments.
• Monitoring application performance, tuning systems, and driving operational efficiency.
• Supporting application-related incident, change, release, and problem management processes.
• Writing and maintaining documentation such as installation manuals, troubleshooting guides, and backup/restore plans.
• Automating system administration tasks and providing supporting documentation.
• Maintaining and enriching the technical knowledgebase for ICT Operations.
• Producing reports on availability, capacity, and performance of applications when required.

Requirements

• Working knowledge of English (B2 or higher).

• At least 6 years of experience in Software Quality Assurance, including GUI/API testing.

• Strong experience in C# or Java, with OOP and design pattern usage.

• Proven experience in test automation using tools like RestAssured, RestSharp, Selenium WebDriver.

• Knowledge of BDD methodologies and tools (e.g., SpecFlow, Cucumber).

• Experience applying DevOps best practices, including continuous testing and release pipelines.

• Experience with system and acceptance testing using dynamic/static techniques.

Technical Requirements

• At least 6 years of experience in mid/large IT infrastructure environments
• Minimum 2 years of experience with microservices, container orchestration, and Docker/Kubernetes
• Minimum 2 years administering and supporting Elasticsearch
• Minimum 5 years working with enterprise Microsoft or Linux server solutions
• Good knowledge of Elasticsearch cluster administration
• Good knowledge of container tools (Kubernetes, Helm, Docker, Rancher)
• Strong scripting skills with Shell and/or PowerShell
• Familiarity with configuration management tools (e.g., Ansible, Puppet, Chocolatey)
• Solid understanding of ITIL processes (incident, change, release)

Desirable:

• Experience with gRPC, non-functional testing (performance, security, reliability)
• Experience with Azure or AWS (public/hybrid cloud environments)
• Experience with relational databases such as MS SQL or PostgreSQL
• Knowledge of Kong API Gateway
• Certifications related to the technologies above

Benefits

Why join inventYOU?

• Work on impactful international projects
• Collaborate with experienced professionals in the financial tech space
• Develop your skills in a supportive, agile environment