Top 538 Control technician/operations support Jobs in St. Louis, Mo

VoIP Technician - Tier III
Gabbit, LLC —Olivette, MO
- $85,000 - $95,000 a year
- Full-time
- Background check
- 3 years
- Analysis skills
- Paid training
- Health insurance
Quick Apply
3d
CVS Pharmacy: Pharmacist (Full Time and Part-time)
CVS Health —St. Louis, MO
- $100,000 - $176,000 a year
- Part-time
- Background check
- Doctoral degree
- Mid-level
- Relocation assistance
- Health insurance
Quick Apply
1d
Board Certified Behavior Analyst (BCBA)
Ad Astra Autism Centers —Overland, MO
- $75,000 - $95,000 a year
- Full-time
- Background check
- Management
- Mid-level
- Continuing education credits
- Relocation assistance
Quick Apply
Asphalt Quality Control Manager
Central Stone Company —Fenton, MO
- Background check
- Clean driving record
- Management
Quick Apply
Field Service Technician
Linde —St. Louis, MO
- Extended hours
- Background check
- Customer service
- Military
- Health savings account
- Paid holidays
Quick Apply
Industrial Fire Sprinkler Fitter
D7 PNEUMATICS LLC —St. Louis, MO
- $25 - $37 an hour
- Clean driving record
- Mid-level
- 3 years
Quick Apply
Automotive Parts Director
Clement Service Center —Saint Charles, MO
- $80,000 - $119,000 a year
- Full-time
- Background check
- Mid-level
- Organizational skills
- Paid holidays
- Health insurance
Quick Apply
Experienced Maintenance Technician
Storyboard Living —Fairview Heights, IL
- $24 - $28 an hour
- Full-time
- English
- Mid-level
- Residential
- Health insurance
- Dental insurance
Quick Apply
Veterinary Laboratory Technician
Veterinary Reference Laboratory —Collinsville, IL
- From $20 an hour
- Part-time
- Cleaning
- Computer skills
- In-person
- Continuing education credits
- Paid holidays
Quick Apply
Physical Therapist Assistant
Reliant Rehabilitation —Florissant, MO
- $33 - $40 an hour
- Full-time
- Writing skills
- Physical & Rehabilitation Medicine
- English
- Health insurance
- Dental insurance
Cost Accounting Lead
Hussmann Corporation —Bridgeton, MO
- Full-time
- Oracle
- 5 years
- Finance
- Health savings account
- Health insurance
Field Controls Technician
Thermo Systems LLC —Missouri
- Full-time
- Travel
- US work authorization
- Entry level
- Travel reimbursement
- Tuition reimbursement
Quick Apply
Maintenance Technician
CBRE —Fenton, MO
- $29.66 an hour
- Full-time
- Microsoft Excel
- Microsoft Outlook
- High school diploma or GED
- Paid parental leave
- Paid holidays
Quick Apply
4d
Physical Therapist Assistant
Reliant Rehabilitation —Ferguson, MO
- $33 - $40 an hour
- Full-time
- Writing skills
- Physical & Rehabilitation Medicine
- English
- Health insurance
- Dental insurance
Physical Therapist Assistant
Reliant Rehabilitation —St. Louis, MO
- $30 - $38 an hour
- Full-time
- Management
- Writing skills
- Physical & Rehabilitation Medicine
- Health insurance
- Dental insurance
Physical Therapist Assistant
Reliant Rehabilitation —Florissant, MO
- $32 - $40 an hour
- Full-time
- Writing skills
- Physical & Rehabilitation Medicine
- English
- Health insurance
- Dental insurance
Senior Maintenance Technician
NIKE —Saint Charles, MO
- Full-time
- Mid-level
- 3 years
- Trade school
Lighting & Service Technician (Theatrical/Live Events)
Technical Productions, Inc —St. Louis, MO
- $22 - $25 an hour
- Full-time
- Clean driving record
- Computer literacy
- Mid-level
- Health insurance
- Dental insurance
Quick Apply
Building Technician
Continuum Services —Creve Coeur, MO
- Weekends as needed
- Clean driving record
- Construction site
- Mid-level
- Health insurance
- Dental insurance
Remote Cutter Digital Support Technician
Insituform Technologies, LLC —Chesterfield, MO
- Full-time
- Computer literacy
- Basic math
- Mid-level
- Health insurance
- Dental insurance
Quick Apply

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VoIP Technician - Tier III

Gabbit, LLC
Olivette, MO

Quick Apply

Job Details

Full-time
$85,000 - $95,000 a year
3 days ago

Benefits

Paid training
Health insurance
Dental insurance
401(k)
Paid time off
On-the-job training
Vision insurance
401(k) matching

Qualifications

Customer communication
Technical documentation
CCNA
Incident Escalation
Troubleshooting audio issues
VLAN
Firewall
Bachelor's degree
Quality issues
Problem-solving
CompTIA Network+
Customer support ticket management
AV system troubleshooting
Voice over internet protocol (VoIP) configuration
Linux
Technical writing experience within technology
Escalation handling
Network Address Translation (NAT)

Full Job Description

Job Summary

We are seeking an experienced Tier III VoIP Technician to provide advanced technical support for our voice and network environments. This position serves as a senior escalation point for complex VoIP, SIP, RTP, and network-related issues that cannot be resolved through standard Tier I or Tier II troubleshooting.

The ideal candidate has a strong understanding of SIP-based voice communications, IP networking, and real-time media troubleshooting. This individual should be comfortable analyzing packet captures, diagnosing call-flow and audio issues, working directly with customers, and taking ownership of technically challenging cases through resolution.

Key Responsibilities

Serve as a Tier III escalation point for complex VoIP, network, and customer-impacting technical issues.
Troubleshoot SIP signaling, registration, authentication, call routing, call setup, and call teardown issues.
Diagnose RTP and media-related problems, including one-way audio, no audio, intermittent audio, latency, jitter, and packet loss.
Analyze SIP traces, call logs, packet captures, and other diagnostic information to determine root cause.
Use tools such as Wireshark and related network diagnostic utilities to troubleshoot signaling and media problems.
Troubleshoot network connectivity and voice-quality issues involving TCP/IP, UDP, DNS, DHCP, NAT, VLANs, routing, firewalls, and QoS.
Identify problems involving customer networks, firewalls, routers, switches, SIP devices, carriers, and upstream service providers.
Work directly with customers to gather technical information, reproduce issues, explain findings, and coordinate resolution.
Take ownership of escalated cases from initial investigation through resolution and customer communication.
Collaborate with internal support, engineering, operations, and network teams on complex or recurring technical issues.
Escalate carrier or vendor-related issues when appropriate and provide the technical evidence necessary to drive resolution.
Document troubleshooting steps, root causes, resolutions, and relevant technical findings in support tickets.
Identify recurring problems and recommend improvements to processes, documentation, monitoring, or system configuration.
Assist Tier I and Tier II technicians with advanced troubleshooting and technical guidance.
Contribute to internal knowledge-base documentation and troubleshooting procedures.

Required Qualifications (MUST HAVE)

1) Advanced understanding of SIP signaling and RTP media.

2) Ability to read and interpret SIP call flows, headers, response codes, SDP, and related signaling information.

3) Experience analyzing packet captures using Wireshark or similar tools.

4) Strong understanding of IP networking concepts, including:

TCP/IP and UDP
DNS and DHCP
NAT
VLANs
Routing and subnetting
Firewalls and access-control rules
QoS and traffic prioritization

5) Experience troubleshooting voice-quality issues such as latency, jitter, packet loss, one-way audio, and dropped calls.

6) Ability to distinguish between application, endpoint, network, carrier, and customer-environment issues.

7) Minimum of 3 years of experience working directly with customers on complex technical problems.

8) Strong written and verbal communication skills, including the ability to explain technical issues clearly to both technical and non-technical audiences.

9) Strong analytical and problem-solving skills with the ability to independently investigate complex issues.

10) Ability to manage multiple escalated cases while maintaining accurate technical documentation.

Preferred Qualifications

Experience supporting hosted or cloud-based VoIP platforms.
Experience with SIP trunks, SBCs, IP phones, ATAs, and related voice infrastructure.
Familiarity with common PBX and unified communications platforms.
Experience troubleshooting carrier and PSTN-related call-routing issues.
Familiarity with Linux command-line troubleshooting.
Experience with network monitoring, logging, or centralized diagnostic platforms.
Networking or VoIP certifications such as CCNA, Network+, SIP School, or equivalent practical experience.
Previous experience in a Tier III, senior technical support, NOC, telecom, or network engineering environment.

What Success Looks Like

A successful Tier III VoIP Technician can take an ambiguous customer-reported voice problem, methodically isolate the issue, gather and interpret the necessary technical evidence, identify the root cause, and drive the issue to resolution.

This role requires someone who is comfortable going beyond scripted troubleshooting and understands how voice applications, SIP signaling, RTP media, and IP networks interact in real-world environments.

Ideal Candidate

You are naturally curious and persistent when troubleshooting difficult technical problems. You do not stop at identifying a symptom—you want to understand why the problem occurred and how to prevent it from happening again.

You are equally comfortable reviewing a SIP trace or packet capture and communicating with a customer about what is happening. You take ownership of escalations, document your findings clearly, and work effectively across teams to resolve complex issues.

Pay: $85,000.00 - $95,000.00 per year

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
On-the-job training
Paid time off
Vision insurance

Education:

Bachelor's (Required)

Experience:

VoIP systems support: 3 years (Required)

Ability to Commute:

Olivette, MO 63132 (Required)

Work Location: In person

Quick Apply

Refine Your Search

control technician/operations support jobs in st. louis, mo

VoIP Technician - Tier III

CVS Pharmacy: Pharmacist (Full Time and Part-time)

Board Certified Behavior Analyst (BCBA)

Asphalt Quality Control Manager

Field Service Technician

Industrial Fire Sprinkler Fitter

Automotive Parts Director

Experienced Maintenance Technician

Veterinary Laboratory Technician

Physical Therapist Assistant

Cost Accounting Lead

Field Controls Technician

Maintenance Technician

Physical Therapist Assistant

Physical Therapist Assistant

Physical Therapist Assistant

Senior Maintenance Technician

Lighting & Service Technician (Theatrical/Live Events)

Building Technician

Remote Cutter Digital Support Technician

I want to receive the latest job alert for control technician/operations support in st. louis, mo

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