06/08/2026 updated
100 % available
Freelancer
Elbląg, Poland
Worldwide
The State University of Applied Sciences, Elblag, PolandAbout me
DevOps/Backend Engineer with 6+ years in OCI,Linux,Docker and Kubernetes.Expert in Node.js microservices,Python automation for PostgreSQL/Oracle databases, and REST API integrations. Successfully optimized migrations and CI/CD pipelines to deliver reliable, scalable systems with improved efficiency.
Java (Programming Language)Application Programming Interfaces (APIs)Atlassian JiraC Sharp (Programming Language)Cloud ComputingCloud EngineeringLinuxDevOpsPython (Programming Language)Linux AdministrationNode.jsOracle ApexDocker ContainerBackendKubernetes
DevOps & Cloud Engineering
Linux Administration (Ubuntu)
Kubernetes & Docker
Oracle Database & Oracle APEX
SQL Optimization & Database Automation
Python & Bash Scripting
REST API Development & Integrations
CI/CD Pipelines & Git Workflows
Infrastructure Automation
Cloud-Native Architectures
OCI Cloud Infrastructure
Backend Development
PostgreSQL
Apache Hop Data Integration
Infrastructure Monitoring & Troubleshooting
Automation & Deployment Workflows
Experience
Professional experience5 - 10 years
Freelancer since2021
Languages
GermanGoodEnglishFluentPolishNative speaker
Project history
Designed and developed cloud-native backend and infrastructure solutions using Docker, Kubernetes, Linux, and Oracle technologies. Built scalable backend services, automation tooling, and API-driven architectures. Automated operational and infrastructure workflows using Python, Bash, SQL, and PL/SQL. Managed Linux-based environments and containerized deployments for scalable application operations. Worked with distributed systems, cloud-native architectures, and infrastructure troubleshooting. Applied DevOps best practices including automation, CI/CD workflows, and version control.
Designed and deployed cloud-native backend services and distributed applications in Oracle Cloud Infrastructure (OCI). Built scalable REST API integrations and backend microservices using Python, Node.js, SQL, and PL/SQL. Automated infrastructure operations, deployment workflows, and database-related tasks using Python and Bash scripting. Worked with Docker-based application environments and Kubernetes-oriented deployment architectures. Managed Oracle Autonomous Database environments and optimized backend/database integrations. Supported CI/CD workflows, version control operations, and infrastructure reliability processes. Collaborated on scalable cloud infrastructure and API-driven enterprise integrations.
Managed containerized workloads and deployment operations within Kubernetes environments. Designed Docker-based backend environments for scalable data integration and service orchestration. Automated deployment workflows and operational tasks using Bash, Python, SQL, and PL/SQL. Integrated distributed REST APIs and backend services across cloud-native systems. Improved operational stability and infrastructure automation across Linux-based environments. Worked with CI/CD workflows, Git-based collaboration, and deployment optimization. Optimized data integration pipelines using Apache Hop.