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troubleshooting across enterprise platforms. Engineers will take lead on
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Business Strategy Analyst Lead - Pricing and Product Analytics
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We are seeking a dedicated Business Strategy Analyst Lead – Pricing and Product Analytics.
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Strong analytical foundation with structured/unstructured datasets, SQL, Python, Excel, and enterprise BI tools (Power BI, Tableau).
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Senior Consultant Cybersecurity Architecture - Cloud Security
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Jacksonville, FL · Tallahassee, FL · Tampa, FL
…service for Deloitte US Member Firm. The professional will lead and collaborate with application teams, infrastructure teams, and vendors to support all phases of product integration,…
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Senior Business Analyst , Vice President
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The IT Business Lead Analyst is a senior-level position responsible for directing and delivering key initiatives within our four-pillar intelligent servicing automation program. In this…
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Databricks Data Engineer
Deloitte
Miami, FL · Tampa, FL
Design, build, and maintain data pipelines and data engineering solutions using Databricks, Apache Spark, Python, and Structured Query Language (SQL)
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Agentic AI Engineer, Senior - Anthropic/Claude
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Miami, FL · Tampa, FL
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Agentic AI Engineer - Anthropic/Claude
Deloitte
Tampa, FL · Miami, FL
Lead small teams through business requirements gathering, functional design, process mapping, and support-model definition, providing technical direction throughout
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Lead Integration Engineer II
Deloitte
Tampa, FL · Miami, FL
US-E - Consulting - Lead Integration Engineer II - AI & Engineering/EaaS
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Lead the design, development, and delivery of analytics solutions that address complex workforce and human capital challenges for clients across industries.
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Miami, FL · Jacksonville, FL · Lake Mary, FL
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Firmware Development Engineer
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…the technical guidance of the Reactor Protection System (RPS) Lead Engineer and experienced team members, this person will develop, test, and document firmware for reactor protection and…
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Senior Mechatronics Engineer
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Added 9 mins ago
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Solidigm
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- $128,960 to $201,500 USD / year
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Sr. Platform Engineer
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Lead Platform Engineer
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Cox Automotive is seeking a Lead Platform Engineer to join our team. We are building a next-generation federated GraphQL platform (DriveQ supergraph) that unifies multiple enterprise data…

AST SpaceMobile

Sr. Principal Device Validation Engineer

Dallas, TX, United States

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Job details

Posting language: English
Posted: Oct 30, 2026

Original job description

AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet – on land, at sea and in flight.

Position Overview

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.

Key Responsibilities

Own device validation strategy for operator onboarding programs, including device selection, test planning, certification requirements, and compatibility tracking
Lead laboratory and field validation efforts for commercial mobile devices, including connectivity, mobility, throughput, latency, application performance, and user experience testing
Collaborate with chipset vendors and device manufacturers to resolve device, modem, firmware, and interoperability issues
Serve as the primary technical lead during customer workshops, testing events, device validation activities, and technical reviews
Define device readiness criteria, acceptance standards, test methodologies, and launch requirements
Analyze modem logs, protocol traces, RF measurements, and performance data to identify root causes and resolve technical issues
Manage the device defect lifecycle from identification through validation and resolution
Maintain device compatibility matrices and certification documentation
Develop and present technical reports, readiness assessments, executive summaries, and performance recommendations
Partner with internal engineering teams to improve device performance, validation processes, and customer onboarding activities
Support field trials, proof-of-concept programs, beta deployments, and commercial launch readiness activities
Mentor technical teams on device behavior, performance characteristics, and troubleshooting methodologies

Qualifications

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

Preferred Qualifications:

Experience with non-terrestrial networks, satellite communications, or direct-to-device wireless technologies
Experience supporting commercial device certification and carrier acceptance programs
Familiarity with IMS, VoLTE, VoNR, SIM, and eSIM technologies
Experience with test automation and scripting using Python or similar languages
Experience supporting international operator deployments and device certification initiatives
Additional language skills supporting global customer engagements

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

Benefits & Perks

At AST, we value our employees and offer a comprehensive benefits package designed to support your health, financial well-being, and work-life balance.

Medical, Dental, and Vision Insurance
401(k) Retirement Plan with Company Match
Company-Paid Short-Term Disability (STD) and Long-Term Disability (LTD) Insurance
Company-Paid Life and Accidental Death & Dismemberment (AD&D) Insurance
Health Savings Account (HSA) and Flexible Spending Account (FSA) Options
Employee Assistance Program (EAP)
Voluntary Supplemental Benefits
Paid Time Off (PTO) and Company Holidays
Career Growth and Development Opportunities

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands. AST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

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More about this job

Skills

Communication skills
Troubleshoot
Onboarding
Firmware
Documentation
Troubleshooting
Electrical engineering
Computer engineering
Computer science
Leadership
Test automation
Python
Problem solving
Project management
Attention to detail
Wireshark
Jira
Atlassian Confluence
Data analysis
Microsoft Office

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