Top 132 Senior engineering technician Jobs in Maryland Heights, 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
8d
Senior Facilities Technician
Beacon Hill Staffing Group —St. Louis, MO
- $30 - $33 an hour
- Full-time
- Mid-level
- 3 years
- Military encouraged
- Dental insurance
- Vision insurance
Quick Apply
2d
Senior Electrical Engineering Technician
Leonardo DRS —Bridgeton, MO
- $60,045 - $78,058 a year
- Hybrid work
- Mentoring
- Experience equivalent to degree accepted
- Senior level
- Paid parental leave
- Health savings account
Senior Verification Engineering Technician
Leonardo DRS —Bridgeton, MO
- $54,586 - $70,962 a year
- Full-time
- Mid-level
- Travel
- Mentoring
- Paid parental leave
- Health savings account
Senior Facilities Technician
Curium Pharma —Maryland Heights, MO
- Overtime
- 3 years
- Ability to sit for extended periods
- Senior level
Senior Test & Evaluation Lab Technician
Boeing —Berkeley, MO
- $90,100 - $121,900 a year
- Experience equivalent to degree accepted
- Senior level
- 4 years
- Health savings account
- Disability insurance
SENIOR LABORATORY TECHNICIAN (ENGINEERING TECHNICIAN IV)
State of Illinois —Collinsville, IL
- Seasonal
- Bilingual
- Background check
- Civil engineering
- Paid parental leave
- Paid holidays
10d
Senior Manufacturing Technician - Cyclotron Operator
Curium Pharma —Maryland Heights, MO
- 12 hour shift
- 3 years
- Mentoring
- Ability to sit for extended periods
Senior Field Service Technician
ABB Inc. —Bridgeton, MO
- $83,300 - $133,280 a year
- Full-time
- High school diploma or GED
- Travel
- US work authorization
- Health savings account
- AD&D insurance
Quick Apply
22h
Senior Production Maintenance Technician
Curium Pharma —Maryland Heights, MO
- Overtime
- 6 years
- Ability to sit for extended periods
- Welding
Senior Research Technician - Neurosurgery
Washington University in St. Louis —St. Louis, MO
- $18.77 - $31.94 an hour
- Online Application
- Surgery
- Computer Science
- Writing skills
- Commuter assistance
- Employee assistance program
Senior Maintenance Technician
Nike —Saint Charles, MO
- Full-time
- Mid-level
- 3 years
- Trade school
Senior HVACR Technician
Copeland —St. Louis, MO
- Full-time
- 6 years
- Residential
- Analysis skills
- Paid parental leave
- Paid holidays
Senior CEI Inspector
Volkert Inc —St. Louis, MO
- Weekends as needed
- Construction site
- 5 years
- Pass drug screening
- Wellness program
- Paid jury duty
Quick Apply
Senior Technician, Maintenance (3rd Shift) - St. Louis, MO
dsm-firmenich —St. Louis, MO
- Background check
- Forklift
- High school diploma or GED
- Health insurance
- Paid time off
Quick Apply
Senior Protection and Control Technician
Telex LLC —Missouri
- $150,000 - $350,000 a year
- Full-time
- Mid-level
- Driver's License
- Travel
- Paid holidays
- Health insurance
Quick Apply
1d
Avionics Electrical Tech II
Gulfstream Aerospace Corporation —St. Louis, MO
- $27.09 - $35.55 an hour
- Full-time
- English
- Mid-level
- Ability to climb stairs
- Disability insurance
- Health insurance
6d
Avionics/Electrical Technician 2
Gulfstream Aerospace Corporation —St. Louis, MO
- $30.47 - $35.55 an hour
- Full-time
- English
- Mid-level
- Ability to climb stairs
- Disability insurance
- Health insurance
Avionics/Electrical Technician 2 (Second Shift)
Gulfstream Aerospace Corporation —St. Louis, MO
- $30.47 - $35.55 an hour
- Full-time
- English
- Mid-level
- Ability to climb stairs
- Disability insurance
- Health insurance
9d
Interior Install Tech III
Gulfstream Aerospace Corporation —St. Louis, MO
- $27.72 - $36.38 an hour
- Full-time
- Computer literacy
- English
- Mid-level
- Disability insurance
- Health insurance
12h

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VoIP Technician - Tier III

Gabbit, LLC
Olivette, MO

Quick Apply

Job Details

Full-time
$85,000 - $95,000 a year
8 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

senior engineering technician jobs in maryland heights, mo

VoIP Technician - Tier III

Senior Facilities Technician

Senior Electrical Engineering Technician

Senior Verification Engineering Technician

Senior Facilities Technician

Senior Test & Evaluation Lab Technician

SENIOR LABORATORY TECHNICIAN (ENGINEERING TECHNICIAN IV)

Senior Manufacturing Technician - Cyclotron Operator

Senior Field Service Technician

Senior Production Maintenance Technician

Senior Research Technician - Neurosurgery

Senior Maintenance Technician

Senior HVACR Technician

Senior CEI Inspector

Senior Technician, Maintenance (3rd Shift) - St. Louis, MO

Senior Protection and Control Technician

Avionics Electrical Tech II

Avionics/Electrical Technician 2

Avionics/Electrical Technician 2 (Second Shift)

Interior Install Tech III

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