ID 1044 – Sr Systems Administrator

CONEXIONHR
    Descripción del trabajo
    • LugarPuerto Madero

    Reporting directly to the CTO and managing the overall system infrastructure. This is a senior administrator and architecture role responsible for the overall technical management, operations, ongoing maintenance and support of our large scale production platform.

    Role:

    • Chief responsibility over systems and networks.
    • Maintain vendor relationships, as required, for technical infrastructure of staging and production environments
    • Work directly with the Development Team, Business Operations and Project Management in managing projects and provide final sign-off/approval for release to various staging and production environments.
    • Working directly with Senior Management, participate in planning and project discussions for various projects.
    • Analyze and assess areas of risk to systems and recommend/implement changes as appropriate to the business.
    • Continuously assess network and systems security, ensuring a high level of systems data security is maintained overall. Report concerns directly to the CTO.
    • Perform systems and network architectural design for the platforms network, including capacity planning, hardware, infrastructure, software integration, OS and software performance tuning.
    • Act as single point of escalation of production issues, interfacing with required resources to see issues are resolved in a timely manner.
    • Effectively manage risk, including monitoring, system redundancy and backups based on business requirements and acceptable risk.
    • Provide technical assistance and consultation as required to all areas of the company, including Development,
    • Project Management, Sales, Quality Assurance, Accounting, Customer Service, Development and Systems
      departments.
    • Perform special tasks and projects company-wide, as assigned by the CTO.

    Responsibilities:

    • Daily monitoring and maintenance (including periodic upgrades, backups, preventative maintenance, etc) of various staging and production environments, ensuring uptime and stability.
    • Troubleshooting systems performance issues, formulating a repair-strategy and implementation thereof.
    • Continued review of security architecture and ensuring exploitable vulnerabilities are mitigated.
    • Designing and architecting system and platform changes, according to business requirements, including systematic role-out plan/strategy for deploying those changes to live environments.
    • Configuring, testing, deploying and maintaining various:
             -physical and virtual servers
             -network equipment
             -cloud tenancies
             -databases
             -third-party software platforms
    • Integrating/interfacing hosted on-prem systems with third-party cloud-based platforms.
    • Collaborate with multiple teams on various projects and deployments
    • Basic user helpdesk support (setting up accounts, VPN configs, etc)
    • Other duties as assigned.

    Job Requirements:

    • Minimum of 5 year’s experience in a senior infrastructure engineer / systems architecture role for technology-oriented organization required.
    • Hands-on experience working with Linux (incl all of the below on Linux).
    • Strong understanding of Ubuntu Server edition and Centos/RHEL required.
    • Strong understanding of Linux mail systems, SMTP, large scale email platforms, DKIM, SPF and the holistic process behind email delivery/transfer.
    • Extensive experience working on AWS and GCP.
    • Exceptional problem determination and creative problem solving skills.
    • Strong written and verbal skills.
    • Strong understanding of software development lifecycle.
    • Strong documentation and organizational practices.
    • Extensive experience with many of these:
            o Mac OSX / Linux (Both hardware and Operating Systems)
            o MySQL, deployment, clustering, replication, maintenance and troubleshooting
            o Network architecture, deployment and troubleshooting
                       § L2 switching, VLAN’s, DNS, DHCP, etc
                       § basic static routing principles
                       § stateful firewalling (NAT, Zonal FW policies, etc)
                       § load balancing and ssl-offloading
                       § remote access and VPN concepts
                       § proxying (especially Squid, HAProxy)
    • Network, physical and virtual host system security (local FW policies, IDS systems, mac-filtering, DMZ’s, etc)
    • Monitoring platforms and SNMP (Nagios, Icinga, OpenNMS, etc)
    • Cloud based security platforms (Cloudflare, etc)
    • Cloud-computing technologies (OpenStack, oVirt, RHEV or similar)
    • CDN principles and inline caching
    • Baremetal hardware, SAN
    • Backup technologies
    • Deployment automation systems (Ansible, Puppet or equivalent)
    • Expertise with multiple Web technologies including but not limited to:
                                    HTTP, SSL, DNS and SMTP protocols.