Voice and Network Infrastructure Engineer

3 days ago

City of Johannesburg Metropolitan Municipality, South Africa Logimeter Full time

Junior Voice and Network Infrastructure Engineer Logimeter City of Johannesburg, Gauteng, South Africa Position Overview: As a Junior Voice and Network Infrastructure Engineer, your primary responsibility is to maintain and improve the infrastructure used at Logimeter, supporting the development team as well as the rest of the business. You will play a crucial role in monitoring, maintaining and improving the current systems, striving to improve performance and availability as well as innovate on current processes to improve efficiencies in teams utilizing the infrastructure. The successful candidate will be proactive, dependable, able to troubleshoot issues and have good communication skills while working in a team and handling potential business‑impacting scenarios. This role will report directly to the Head of Infrastructure. Core Skills (Must-Have) Voice and SIP Fundamentals (Daily Ops) Understands Freeswitch or Asterisk LUA, Pearl and SIP based scripting Linux & Shell (Daily Ops) Comfortable in Debian/Ubuntu CLI Understands systemd, journalctl, netstat, lsof, top, htop, etc. Can write/read basic Bash scripts (looping, if conditions, cronjobs) Knows basics of TCP/IP, DNS, HTTP/S, firewalls, SSL/TLS Mikrotik knowledge of NAT, policy based routing, destination based NAT, firewall access lists, walled gardens. AWS Basic Operations Launch, SSH, and manage EC2 instances Modify and query Route 53 records IAM basics: least privilege, access keys, and role concepts Basic understanding of how Apache2 works (virtual hosts, mod_wsgi, mod_ssl) Can reload, debug logs, and look into various errors or service issues of Apache, Django and mod_wsgi for Apache. Infrastructure Tools & Concepts Gitlab proficiency: clone, commit, diff, merge, push, pull Understanding of pull requests, GitLab/GitHub pipelines, test pipelines. Domain experience using 365 Tenants/Google Workspace. SPF, DMARC, DKIM concept and operational understanding. Can interpret logs from Apache, PostgreSQL, systemd services Familiarity with any of: Prometheus, Grafana, Nagios, CloudWatch, GCP Logging, SNMP Based monitoring, blackbox exporter and SQL. Basic DB Skills Connecting to PostgreSQL shell to debug queries/modify roles Can run SQL/PSQL queries and tail logs to identify issues. Understands concept of schema, indexes, roles Understanding of replication, either logical or streaming, PostgreSQL backup procedures and version checking. Security Skills Familiarity with Bitdefender would be beneficial, mail security and device policy security. Linux UFW understanding Mikrotik Firewall understanding and ability to implement and update rules. AWS Access list understanding and ability to implement and update rules. Desirable Technical Skills (Nice to Have) CCNA Routing and Switching or equivalent Understanding of Python fundamentals. Bash and cron fundamentals Interest in Learning - curiosity to learn and develop skills, eager to ask questions. Calm under pressure - able to investigate and resolve time critical issues Organized - good at documenting processes and problems Communicates clearly — can escalare with the right info (logs, symptoms, timestamps) Seniority level Entry level Employment type Full-time Job function Information Technology Industries IT Services and IT Consulting Referrals increase your chances of interviewing at Logimeter by 2x Get notified about new Voice Network Engineer jobs in City of Johannesburg, Gauteng, South Africa. #J-18808-Ljbffr

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