Voice and Network Infrastructure Engineer

7 days ago

Johannesburg, Gauteng, South Africa Logimeter Full time R250 000 - R600 000 per year

Junior Voice and Network Infrastructure Engineer

Position Overview:

As a Junior Voice and Network Infrastructure Engineer, your primary responsibility is to maintain and improve on the infrastructure used at Logimeter, supporting the development team as well as the rest of 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, ability to troubleshoot issues and 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)

  • SIP School/CCNA Voice equivalent
  • 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)

Networking Fundamentals

  • Knows basics of TCP/IP, DNS, HTTP/S, firewalls, SSL/TLS
  • Can troubleshoot using ping, traceroute, dig, tcpdump.
  • 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

Web Stack Familiarity

  • 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

  • Source Control / CI-CD Awareness
  • Gitlab proficiency: clone, commit, diff, merge, push, pull
  • Understanding of pull requests, GitLab/GitHub pipelines, test pipelines.
  • Gitlab Runner concepts.
  • Domain experience using 365 Tenants/Google Workspace.
  • SPF, DMARC, DKIM concept and operational understanding.

Monitoring & Logging

  • 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

Soft Skills & Attitude

  • 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 escalate with the right info (logs, symptoms, timestamps)

  • Network Operations Engineer

    4 days ago

    Johannesburg, Gauteng, South Africa Elitesearch Full time R1 200 000 - R2 400 000 per year

    Senior Network Operations Engineer –  (Hybrid | Illovo, Sandton)1 day per week remote | Permanent roleMy client is a leading enterprise connectivity provider in a hands-on, highly technical role within their Network Operations team. This is your chance to take ownership of core network infrastructure, drive high-availability performance, and influence...

  • Senior Huawei Network Engineer

    4 days ago

    Johannesburg, Gauteng, South Africa iOCO Infrastructure Services Full time R1 200 000 - R2 400 000 per year

    Every connection has the power to change livesAt iOCO Infrastructure Solutions, we're looking for a Senior Network Engineer who believes that too—someone who sees beyond the technology to the real business impact and human connections that great network solutions enable.This isn't just another technical role.You'll be at the heart of creating seamless...

  • Senior Network Operations Engineer

    7 days ago

    Johannesburg, Gauteng, South Africa Hire Resolve Full time R600 000 - R1 200 000 per year

    An established telecommunications and technology solution provideris seeking a highly skilled Infrastructure Engineer to join their Network Operations team.Responsibilities: Advanced Support & Resolution: Provide expert-level support and lead the diagnosis/resolution of complex, critical network, and voice connectivity issues (routers, switches, firewalls,...

  • L2 Voice Support Engineer

    4 days ago

    Johannesburg, Gauteng, South Africa 60 Degrees Full time R250 000 - R400 000 per year

    Job DescriptionTHE OPPORTUNITY THAT AWAITS YOU We're looking for an experienced and passionate L2 Voice Support Engineer to join their newly growing team in Johannesburg North.This role will be starting remotely (moving to a hybrid model in January days on-site/week in JHB North). This role requires shift work, working according to the EST time zone (US),...

  • Network Engineer

    4 hours ago

    Johannesburg, Gauteng, South Africa BT Group Full time R60 000 - R120 000 per year

    Warning of planned maintenanceBT Group Careers will be unavailable from 22:00 (UK time) Friday 14 November, to 05:00 (UK time) Saturday 15 November.Network Engineer (Voice)Job Req ID: 53051Posting Date: 12 Nov 2025Function: EngineeringUnit: BusinessLocation:54 Maxwell Drive, Johannesburg, South AfricaSalary: CompetitiveWhy BT International:At BT...

  • Network Engineer

    4 days ago

    Johannesburg, Gauteng, South Africa Hire Resolve Full time R900 000 - R1 200 000 per year

    A technology company based in Johannesburg that provides solutions for telecom regulation, public safety, and government technology, is seeking an experienced Network Engineer to design, support, and maintain diverse client network infrastructures under strict SLAs. You'll work across LAN/WAN, Data Centers, firewalls, VPNs, and wireless systems,...

  • Network Engineer

    1 week ago

    Johannesburg, Gauteng, South Africa Optimal Growth Technologies Full time R600 000 - R1 800 000 per year

    Network Engineer (Remote South Africa) Experience: Minimum 5 years About the Role We are seeking a skilled Network Engineer with strong expertise in designing, implementing, and maintaining secure, high-performing network environments. You will work with industry-leading technologies to ensure optimal network performance, reliability, and securityall while...

  • Network Engineer

    4 days ago

    Johannesburg, Gauteng, South Africa Optimal Growth Technologies Full time R500 000 - R1 500 000 per year

    Network Engineer (Remote South Africa) Experience: Minimum 5 yearsAbout the RoleWe are seeking a skilled Network Engineer with strong expertise in designing, implementing, and maintaining secure, high-performing network environments. You will work with industry-leading technologies to ensure optimal network performance, reliability, and securityall while...

  • L1 Network Engineer

    4 days ago

    Johannesburg, Gauteng, South Africa Boardroom Appointments Full time R500 000 - R750 000 per year

    6 month contractMinimum Requirements:5 years of experience in an Information Technology positionRelevant IT qualification or CertificateCisco Certified Network Associate (CCNA)3 years in an operational role with a strong background on Cisco administration and equipment3 years network infrastructure experience3 years network operations management3 years...

  • Network Engineer

    4 hours ago

    Johannesburg, Gauteng, South Africa BT Group Full time R600 000 - R1 200 000 per year

    Why BT International:At BT International, our purpose is to keep the world connected. As part of BT, we build on almost 180 years of innovation and expertise to deliver secure connectivity and digital services to some of the world's leading multinational businesses and organisations. Our customers trust us to safeguard their data, drive their digital...