Sr. Principal Device Validation Engineer

The role

We are seeking a Sr. Principal Device Validation Engineer to lead device readiness and validation activities for direct-to-device wireless communication services. This role is responsible for ensuring commercial mobile devices operate successfully across the network by working closely with chipset manufacturers, device OEMs, and mobile network operators to validate performance, troubleshoot issues, and drive device certification efforts.

The ideal candidate combines deep mobile device and modem expertise with strong customer-facing capabilities, serving as a trusted technical advisor during device validation, field testing, onboarding, and commercial launch activities.

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Sr. Principal Device Validation Engineer

AST SpaceMobile, Dallas, Texas +1

Posted pay

Pay not posted

Location: Dallas, Texas +1
Work type: Not given
Level: Principal
Experience: 12+ years
Skills in the job text: Python
Jira
Posted: 12 days ago
Last check: 1 h ago
Job type: Software engineering

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AST SpaceMobile

Open tech jobs: 78
With posted pay: 5%

About AST SpaceMobile: funding, hiring and pay

AST SpaceMobile

About AST SpaceMobile: funding, hiring and pay

Company facts

Money raised: At least $187KSum of SEC filings. A filing does not show all money that a company raises.
Newest raise: May 6, 2022First sale on an SEC filing

Funding records can have errors and can be missing. The company page has the links.

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The role

What you need

Education

Bachelor's degree in Electrical Engineering, Telecommunications, Computer Engineering, Computer Science, or a related technical field
Master's degree in Engineering, Telecommunications, or a related discipline preferred.

Experience

Minimum 12 years of experience in mobile device validation, chipset validation, device certification, wireless testing, or device-focused field engineering
Minimum 5 years of experience serving in a senior technical lead, principal engineer, or equivalent leadership capacity
Hands-on experience validating mobile devices, modem technologies, or wireless communication platforms
Strong understanding of LTE technologies, signaling procedures, device connectivity, mobility management, and wireless performance analysis
Working knowledge of 5G technologies and next-generation wireless architectures
Proven experience working directly with chipset manufacturers, device OEMs, or wireless operators to resolve technical issues
Experience presenting technical findings and recommendations to customers, operators, and executive stakeholders

Soft Skills

Strong analytical and problem-solving abilities
Excellent written and verbal communication skills
Strong customer-facing presentation and relationship management skills
Ability to communicate complex technical topics to both engineering and executive audiences
Proven ability to influence external partners and stakeholders without direct authority
Strong organizational and project management capabilities
Meticulous attention to detail and commitment to technical accuracy
Ability to operate effectively in fast-paced, highly collaborative environments
Ability to manage competing priorities across multiple customers, projects, and technical teams

Technology Stack

Device logging and protocol analysis tools
Modem diagnostics and troubleshooting platforms
Wireshark
Drive testing and network measurement tools
RF test equipment and over-the-air (OTA) validation systems
Spectrum analyzers
Channel emulators
RF shield box systems
LTE and 5G testing platforms
Open5GS or comparable core network environments
Network performance and traffic analysis tools
Python
Jira
Confluence
Data analysis and reporting tools
Microsoft Office Suite

Physical Requirements

Ability to work in a standard office, laboratory, and testing environment while using computers and test equipment for extended periods
Ability to review technical documentation, test results, protocol logs, and engineering reports
Ability to participate in customer-facing meetings, workshops, testing events, and technical reviews
Ability to remain stationary for extended periods while performing analysis, validation, and troubleshooting activities
Domestic and international travel of approximately 25–35% as required to support customer engagements, operator testing, and validation activities

Sr. Principal Device Validation Engineer

The role

Sr. Principal Device Validation Engineer

The role

What you will do

What you need

Education

Experience

Soft Skills

Technology Stack

Physical Requirements

Nice to have

Pay and benefits

About AST SpaceMobile

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Company facts

AST SpaceMobile