Aleksandar Josic
DevOps/Cloud Engineer
Belgrade
Summary
For the last few years I have been working as a DevOps engineer with technologies such as Docker, Kubernetes, Terraform, ArgoCD, Prometheus and Grafana, GitHub Actions, GitLab CI, Helm, Kustomize and many others, using IaC, GitOPS and CI/CD principles.
I want to continue working, learning and developing my skills in the DevOPS field.
Overview
13
13
years of professional experience
2
2
Languages
Work History
DevOps Engineer
OptimaApps
06.2023 - Current
- Set up infrastructure for an Android/iOS a cloud-based workout application on AWS using AWS Services like EKS, S3, RDS, CloudFront, MediaConvert, EventBridge, using Terraform for IaC, GitLab for GitOps, GitLab and ArgoCD for CI/CD principles.
- Maintaining and migrating an existing project (for an insurance company client) from an on-premise Kubernetes cluster to AWS using ROSA EKS, Istio, ArgoCD, Bamboo, Nexus, Jaeger, ELK and other DevOps tools.
- Creating and maintaining local (sandbox, dev, uat, prod) Kubernetes clusters based on Talos OS, integrated with local Hashicorp Vault via External Secrets Operator, with local Docker registry, using Jenkins pipelines, local Gitlab for GitOps and Terraform as IaC.
DevOps/AWS Cloud Engineer
HTEC Group
03.2022 - 06.2023
- Developed an e-commerce platform using AWS (IAM, EC2, S3, RDS, ALB, EKS, CloudFormation,
Lambda), Terraform, Kubernetes, GitHub Actions, ArgoCD, Prometheus, FluentBit, and Elasticsearch. - Created AWS Terraform Blueprints for rapid infrastructure deployment, covering VPC, SSM, ECR, EKS,
MSK, Route53, MySQL, PostgreSQL, Redis, Cognito, and more. - Developed Kubernetes (EKS) Blueprints for DevOps teams, including ESO, Nginx, Prometheus-Grafana
stack, EBS, Linkerd, SonarQube, Tekton, Loki, ArgoCD, and Helm-based deployments.
System Administrator
Institute of Virusology, Vacciness and Sera Torlak
12.2011 - 03.2022
- Administered bare-metal and virtualized servers, supporting 160+ workstations.
- Reduced downtime by proactively identifying and resolving potential issues through thorough system monitoring.
- Established effective communication channels between IT support staff and end-users, leading to improved issue resolution times overall.
- Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.
- Simplified troubleshooting processes by creating detailed documentation for system configurations, procedures, and best practices.
Education
Master of Science - Information Systems And Technologies
Faculty of Organizational Sciences (FON)
Belgrade, Serbia 04.2001 -
Bachelor of Science - Web Design
Technical Faculty "Mihajlo Pupin"
Zrenjanin, Serbia 04.2001 -
Bachelor of Science - New Computer Technologies
School of Electrical And Computer Engineering
Belgrade, Serbia 04.2001 -
Skills
Operating systems (Linux, Windows)
Scripting languages (Bash, Python)
Containerization technologies (Docker, Kubernetes)
Cloud technologies (Amazon web services)
Monitoring and logging (Prometheus, Grafana, AWS CloudWatch, Loki, ELK)
IaC Tools (Terraform)
CI/CD tools (GitLab, GitHub, Bamboo, Jenkins, Helm, Kustomize)
Databases (Postgres, mysql, redis)
Timeline
DevOps Engineer
OptimaApps
06.2023 - Current
DevOps/AWS Cloud Engineer
HTEC Group
03.2022 - 06.2023
System Administrator
Institute of Virusology, Vacciness and Sera Torlak
12.2011 - 03.2022
Master of Science - Information Systems And Technologies
Faculty of Organizational Sciences (FON)
04.2001 -
Bachelor of Science - Web Design
Technical Faculty "Mihajlo Pupin"
04.2001 -
Bachelor of Science - New Computer Technologies
School of Electrical And Computer Engineering
04.2001 -
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Work Preference
Work Type
Full TimePart TimeContract WorkLocation Preference
On-SiteHybridRemoteImportant To Me
Work from home optionCareer advancementLanguages
English
Upper intermediate (B2)