Dejan Vasiljević

Senior Devops Engineer at Humanity
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Contact Information
us****@****om
(386) 825-5501
Location
Serbia, RS
Languages
  • English Full professional proficiency
Skills

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Credentials

  • AWS Certified SysOps Administrator – Associate
    Amazon Web Services (AWS)
    May, 2019
    - Nov, 2024
  • AWS Certified Solutions Architect - Associate
    Amazon Web Services
    May, 2018
    - Nov, 2024
  • CCNA Security
    Cisco
    Dec, 2016
    - Nov, 2024
  • CCNP Routing and Switching
    Cisco
    Aug, 2016
    - Nov, 2024

Experience

  • TCP's Humanity Scheduling
    • United States
    • Software Development
    • 1 - 100 Employee
    • Senior Devops Engineer
      • Sep 2020 - Present

      Humanity is the leading cloud-based employee scheduling platform. Organizations of all sizes receive unprecedented insight into their operations, and actionable data to optimize staffing based on employee skill set, time-off/leave management, and staff availability. Job role: - Design and implement infrastructure migration from mixed on-prem/cloud environments to AWS with HA and performance on mind. - Developing reusable infrastructure code using Terraform IaaC best practices (community and custom modules). Configuration management toolset (Ansible, User-data scripts) - Projects related to AWS services such as ECS, Service Discovery, CloudFront, IAM, RDS (MySQL), Secrets Manager, Parameter Store, AWS VPN etc. - Logging and Monitoring configuration in Cloudwatch and integration with 3rd party paging systems, custom monitoring solutions. - Supporting and improving CI/CD processes – Jenkins/Bash/AWS CLI. - Remediation of cloud/OS based security vulnerabilities in cooperation with internal and external auditors. Linux OS security patching Show less

  • Ogury
    • United Kingdom
    • Advertising Services
    • 400 - 500 Employee
    • DevOps Engineer
      • Aug 2019 - Sep 2020

      The Ogury platform manages more than 400 million mobile user profiles in more than 120 countries: Working in HA multi-region AWS infrastructure using following technologies: AWS infrastructure components (CloudFormation, Terraform, ELB / ALB, EC2, DynamoDB, ElasticCache, Lambda, R53, RDS, S3, etc) Configuration management with Chef and Ansible Docker & Docker Compose for Application Deployment Maintenance of Kubernetes clusters and application migration Kafka / Zookeper, ELK Collaborating with the development teams to define and validate the technical architecture, the scalability and the deployment of the applications Automating deployments of technical components, applications, monitoring Security (VPC, IAM, AWS Config etc.) Continuous integration & continuous deployment (Git, Jenkins, Travis) Show less

  • Endava
    • United Kingdom
    • IT Services and IT Consulting
    • 700 & Above Employee
    • Senior Network Infastructure Engineer
      • Mar 2017 - Aug 2019

      - Part of a dedicated team providing project delivery services of network and security solutions to both on premise and Cloud infrastructures - Design implement and test projects based on clients functional and business requirements - Involvement in architecture and project definition working with software and infrastructure architects to define requirements. - Research and development of new technologies based on client project pipelines - Creation and maintenance of technical documentation - Provide support services during project go-live, performance tuning, and transition to support operations Show less

  • Euronet
    • United States
    • Financial Services
    • 700 & Above Employee
    • Telecom Support Engineer
      • Dec 2014 - Mar 2017

      L2 network support engineer. Incident problem management and root cause analysis via internal ticketing system. Configuration, monitoring and maintenance of IP/MPLS based network infrasturcture for bank transaction processing enviroment (R&S, Security, NMS related projects). L2 network support engineer. Incident problem management and root cause analysis via internal ticketing system. Configuration, monitoring and maintenance of IP/MPLS based network infrasturcture for bank transaction processing enviroment (R&S, Security, NMS related projects).

  • Public Enterprise of PTT Communications "Srbija"
    • Serbia
    • Consumer Services
    • 1 - 100 Employee
    • Network engineer
      • Jul 2012 - Dec 2014

      Network engineer at Network Operating Centre. Configuration, monitoring and maintenance of IP/MPLS network, (R&S, Security, QoS, OSS). ISP cable network projects (Cisco CMTS deployment) Network engineer at Network Operating Centre. Configuration, monitoring and maintenance of IP/MPLS network, (R&S, Security, QoS, OSS). ISP cable network projects (Cisco CMTS deployment)

  • P3 Communications
    • Belgrade
    • DriveTest Support Engineer
      • Feb 2011 - Jul 2012

      Drive test setup and support engineer; mobile network QoS measurement operations (customer experience for voice and data services) Drive test setup and support engineer; mobile network QoS measurement operations (customer experience for voice and data services)

Education

  • University of Belgrade
    M.Sc., Telecommunications, System engineering and radiocommunications
    2009 - 2012
  • University of Belgrade
    B.Sc., Telecommunications and Information Technology, Radiocommunications
    2003 - 2009

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