Predrag Obracevic, Developer in Zagreb, Croatia
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Predrag Obracevic

Verified Expert  in Engineering

Software Developer

Location
Zagreb, Croatia
Toptal Member Since
May 27, 2019

Predrag is an IT professional with ten years of solid SysOps, and DevOps expertise. He is highly skilled with Cloud computing environments (mainly AWS), Terraform, Red Hat Linux, as well as server administration, and deployment.

Availability

Full-time

Preferred Environment

Amazon Web Services (AWS), Red Hat Linux, Python, Bash, CentOS

The most amazing...

...project I've developed was a CI/CD pipeline for a Node.js application.

Work Experience

Cloud Operations Engineer

2017 - PRESENT
Aurea, Inc.
  • Managed the AWS infrastructure for more than 80 software products on over 200 AWS accounts.
  • Created Terraform files to automate the infrastructure.
  • Created Docker hosts for hosting software solutions.
  • Managed the networking to enable SaaSOps engineers to access all the networks and products, while managing the VPNs and NAT.
  • Managed the company's AD, and VPN solution.
Technologies: Amazon Web Services (AWS), Docker, Terraform, SaaS Operations (SaaSOps)

Senior Deployment Engineer

2012 - 2016
Comverse, Ltd.
  • Managed the integration of software products.
  • Defined the technical specifications, planning integration, and ATP.
  • Prepared internal, and external deployment reports.
  • Wrote technical procedures, SOWs (statement of work), and MOPs (method of procedure).
  • Supported on-call inquiries.
  • Developed training activities for internal teams, and customers.
Technologies: Amazon Web Services (AWS), VMware, Windows, Linux

Customer Support Engineer

2008 - 2011
Comverse, Ltd.
  • Oversaw incident management. I was the single point of contact in case of outage for the entire region.
  • Conducted internal, and joint acceptance tests.
  • Monitored the support systems. Rendered all patch installations, and configuration.
Technologies: Linux

Deployment and Configuration of the AD FS Server

Microsoft AD FS server was deployed to centralize the login to AWS accounts within the company. AD was configured to manage permissions.

Implementation of SMSC for a Mobile Operator in a Cloud environment

I implemented the entire SMSC solution for a mobile operator (server side of the project) in Amazon Cloud. I took the project from ground zero up to a fully running solution.

The networking was built from scratch, and connected using a VPN to customers' internal network. A security solution was implemented so that only certain people have operations and maintenance (O&M) access to the environment. High availability was accomplished using the auto-scaling of servers based on demand.

The database was backed up daily, and due to the local policy, I configured the system to keep the data for 11 years after which it expires. Local customer endpoints were created depending on the region from which the customers were from so that they didn't experience lags. Monitoring of the system was accomplished using CloudWatch using SNS which sends out notifications to the network operations center (NOC) team.
2011 - 2013

Master's Degree in Strategic Management

Indiana University - Indiana, USA

2011 - 2013

Master's Degree in Business Administration

Indiana University, Kelley School of Business - Indiana, USA

2001 - 2007

Master's Degree in Computer Science

Faculty of Electrical Engineering and Computing, University of Zagreb - Zagreb, Croatia

MARCH 2019 - MARCH 2021

Amazon Certified Solution Architect

Amazon

NOVEMBER 2016 - NOVEMBER 2019

Red Hat Certified System Administrator

Red Hat

Tools

Amazon Virtual Private Cloud (VPC), Amazon CloudFront CDN, AWS IAM, AWS CodeBuild, AWS CodeDeploy, Office 2016, Jira, Terraform, SoftEther VPN, VMware, Git, GitHub

Paradigms

Functional Programming

Platforms

Amazon EC2, Linux, Openswan, CentOS, Red Hat Linux, Amazon Web Services (AWS), PagerDuty, Windows, Docker

Storage

Amazon S3 (AWS S3)

Other

AWS CodePipeline, Functional Specifications, VyOS, Software Integration, Design Documentation, Reporting, VMware ESXi, SaaS Operations (SaaSOps)

Languages

Python, Bash

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