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Added 2 mins ago
Senior Software Engineer - Application Development
Zayo
Pierre, SD
Lead the architecture, design, implementation, and operation of complex backend Python services, APIs, and data-processing workflows, translating ambiguous requirements into clear technical…
Added 12 mins ago
Senior Software Engineer - Application Development
Zayo
Cheyenne, WY
Lead the architecture, design, implementation, and operation of complex backend Python services, APIs, and data-processing workflows, translating ambiguous requirements into clear technical…
Added 43 mins ago
Senior Consultant Cybersecurity Architecture - Cloud Security
Deloitte
Omaha, NE
…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,…
Added 43 mins ago
Senior Data Engineer, Data Products & Platforms
Vizient
Chicago · Irving · Centennial
Design and build scalable data ingestion, transformation, and delivery pipelines using Databricks, Apache Spark, Python, and SQL.
Added 1 hour ago
Cybersecurity engineer senior, Identity and Automation
Starbucks Coffee Company
Seattle
Now Brewing – cybersecurity engineer senior, Identity and Automation! #tobeapartner
Added 1 hour ago
TT
Senior/Staff Software Engineer
True Talent Solutions Partners
New York, NY
- $180,000 to $270,000 USD / year
- Build and own platform systems for agent frameworks, orchestration, verification, observability, and developer tooling.
Added 1 hour ago
Sr Manager, Applied Science, AWS Compliance & Security Assurance
Amazon Web Services, Inc.
Seattle, WA · New York, NY
We are hiring an Applied Science Manager to lead a team of applied scientists advancing CSA's science agenda, "Provable Trust in the Agentic Era." This agenda rests on two pillars:…
Added 1 hour ago
Director of Asset Manager
Adapture Renewables
Oakland, CA
…from construction to operations. The Director will build and lead a high-performing team of Asset Managers, a Regulatory Compliance Manager, and an Asset Integration Manager; work closely…
Added 1 hour ago
Senior Signals Software Engineer - 25k Sign on Bonus
LEIDOS, INC.
Columbia, MD
Leidos has a new and exciting opportunity for a Senior Signals Software Engineer in our Intel Sectors, Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in…
Added 1 hour ago
Senior Signals Software Engineer - 25k Sign on Bonus
LEIDOS, INC.
Columbia, MD
Leidos has a new and exciting opportunity for a Senior Signals Software Engineer in our Intel Sectors, Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in…
Added 1 hour ago
Mid-Level Data Engineer
Chenega Corporation
Springfield, VA
…scalability. The ideal candidate has strong experience with Python, SQL, cloud-based data engineering, ETL/ELT processes, and data visualization, along with the ability to communicate…
Added 1 hour ago
SI
Senior Software Engineer, Site Reliability (Agentforce Ops)
Salesforce, Inc.
CA · MA · NY · WA · VA
- $148,500 to $246,000 USD / year
…with the Agentforce ecosystem. This is your chance to help lead that…
Added 1 hour ago
SI
Principal Software Engineer, Site Reliability (Agentforce Ops)
Salesforce, Inc.
Remote, United States
- $197,300 to $344,700 USD / year
…with the Agentforce ecosystem. This is your chance to help lead that…
Added 1 hour ago
Senior Embedded Software Engineer
Glydways
Remote, United States
As a Senior Embedded Software Engineer, you will own critical firmware domains, lead complex cross-functional projects, and help shape our embedded platform and engineering best practices.…
Added 2 hours ago
Product Architect – Senior Manager
PricewaterhouseCoopers Advisory Services LLC
NY · Washington, DC · Cleveland, OH · Dallas, TX · Philadelphia, PA · Portland, OR · Houston, TX
Lead data and analytics efforts within our Data and Analytics practice, focusing on Adobe initiatives that use advanced analysis, data manipulation, visualization, and statistical modeling…
Added 2 hours ago
Senior Staff Software Engineer - Identity & Trust
EarnIn
Remote, United States
Lead High-Impact Technical Initiatives: Drive complex, ambiguous initiatives spanning multiple services and teams - from problem definition and architecture through implementation, rollout,…
Added 2 hours ago
Engineer V
General Atomics
Acton, MA
The Optical Sensor Systems group is searching for a Senior Optical Systems Engineer/Architect with advanced Electro-Optical/Infrared Sensor Systems experience.
Added 2 hours ago
BA
Senior System Engineer
Butler America
Woburn, MA
- $80 to $95 USD / hour
Senior System Engineer Location: Woburn, MA Job ID: #73447 Pre-Job ID: #73408 Pay Range: $80-95 AN HOUR 12 Month contract Secret Required to start!
Added 2 hours ago
Senior Principal Systems Engineer
Butler America
Woburn, MA
Senior Principal Systems Engineer Location: Woburn, MA Job ID: #73448 Pay Range: $113-126 ph (W2) Duration: 12 mos What You Will Do:
Added 2 hours ago
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Senior Machine Learning Research Scientist
Pfizer
Cambridge, MA
- $106,000 to $176,600 USD / year
Pfizer's Machine Learning and Computational Sciences (MLCS) group is seeking a Senior Machine Learning Scientist to lead independent and collaborative research in computational antibody…
Added 2 hours ago
Agentic AI Engineer, Senior - Anthropic/Claude
Deloitte
Boston, MA
Lead small teams through business requirements gathering, functional design, process mapping, and support-model definition, providing technical direction throughout
Added 2 hours ago
A
Trading, Investment & Optimization - QuantAI Full Stack Manager (Hybrid)
Accenture
Boston, MA
- $87,400 to $253,000 USD / year
…to be the reinvention partner of choice for our clients and lead in the safe, widespread adoption of AI, and to be the most client-focused, AI-enabled, great place to work in the world. We…
Added 2 hours ago
SO
Senior AI Engineer
State of Massachusetts
Boston, MA
- $89,993.11 USD / year
…****(Commensurate with experience)** GENERAL STATEMENT OF DUTIES: The Senior AI Engineer designs the architecture for, builds, and deploys AI-enabled applications in OSA's Microsoft GCC…
Added 2 hours ago
Senior Data Visualization Engineer (Hybrid - Aguadilla, PR)
RTX
United States
Analyze and automate large engineering and operational datasets using Python and SQL within cloud environments such as Databricks, Snowflake, and AWS/Azure.
Added 2 hours ago
JH
Senior Robotics Engineer for Tailored Autonomous Systems Group
Johns Hopkins Applied Physics Laboratory
Laurel, MD
- $105,000 USD / year
Serve as a technical lead, chief engineer, or senior systems engineer on autonomy-focused development efforts.

AST SpaceMobile

Principle Systems Engineering- Software

Dallas, TX, United States

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Job details

Experience: Minimum 10–15 years of professional engineering experience
Posting language: English
Posted: Oct 29, 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’re looking for a Principal Systems Engineer - Software to lead the definition, decomposition, and management of software requirements across a complex communications platform. You’ll work at the intersection of software, networking, infrastructure, and systems engineering, turning high-level stakeholder needs into clear, testable, and traceable software requirements that engineering teams can successfully implement.

This is a senior technical leadership role responsible for driving requirements excellence throughout the system lifecycle. You will partner closely with software, hardware, network, systems, and test engineering teams to ensure requirements are properly defined, reviewed, verified, validated, and maintained from concept through deployment.

The ideal candidate brings deep systems engineering expertise, strong communications software knowledge, and a proven ability to lead the development of large-scale, highly integrated technical systems.

Key Responsibilities

Lead development of software system requirements from stakeholder needs and system-level concepts through subsystem and component-level specifications
Define and maintain software requirements for communications software, networking functions, interfaces, and distributed system architectures
Develop and manage interface control documents (ICDs) between software elements, infrastructure components, external systems, and partner interfaces
Own requirements traceability from stakeholder needs through design, implementation, verification, validation, and operational acceptance
Lead requirements reviews and drive resolution of ambiguity, conflicts, risks, and gaps across engineering disciplines
Conduct system-level trade studies and technical analyses to support architecture and requirements decisions
Partner with software development and test teams to define verification strategies, acceptance criteria, and validation approaches
Support system integration activities, anomaly investigations, root-cause analysis, and requirements changes throughout the development lifecycle
Develop and maintain requirements management processes, standards, and best practices
Collaborate with internal and external stakeholders to ensure technical requirements align with business and operational objectives
Mentor engineers and promote strong systems engineering principles across the organization
Provide technical leadership on complex system architecture, integration, and requirements management initiatives

Qualifications

Education:

Bachelor’s degree in Systems Engineering, Electrical Engineering, Computer Engineering, Computer Science, Software Engineering, or a related technical field
Master’s degree in a related engineering discipline preferred

Experience:

Minimum 10–15 years of professional engineering experience
Experience working as a Systems Engineer responsible for writing, managing, and maintaining requirements for complex technical systems
Experience supporting large-scale software development, systems integration, or communications-based platforms
Proven experience developing clear, concise, testable, and verifiable requirements
Experience working throughout the systems engineering lifecycle, including requirements analysis, design support, verification, validation, and deployment
Experience using requirements management, configuration management, and traceability processes in complex engineering environments

Preferred Qualifications:

Experience within cellular telecommunications, wireless communications, networking, or related communications technologies
Familiarity with 4G LTE, 5G, radio access networks, core networks, IMS, or related telecommunications architectures
Knowledge of industry standards and specifications development processes
Experience supporting satellite communications, space systems, or non-terrestrial network architectures
Experience with Model-Based Systems Engineering (MBSE)
Experience using SysML, Cameo, or similar MBSE tools
Background in software development using languages such as C, C++, Python, or similar technologies
Experience with Linux-based embedded, distributed, or networked systems
Experience supporting highly regulated, mission-critical, safety-critical, or high-reliability environments
INCOSE CSEP, ESEP, or similar systems engineering certifications

Soft Skills:

Excellent written and verbal communication skills
Strong interpersonal and relationship-building abilities
Proven ability to collaborate effectively across cross-functional engineering teams
Strong analytical and critical-thinking skills
Exceptional attention to detail and documentation quality
Ability to influence technical decisions without direct authority
Strong problem-solving and decision-making abilities
Ability to manage competing priorities and complex technical initiatives
Self-motivated with a proactive and continuous improvement mindset
Strong mentoring and leadership capabilities

Technology Stack:

DOORS
Jama
Polarion
Jira
SysML
Cameo
Requirements management and traceability platforms
Configuration management and change control systems
C and C++
Python
Linux-based systems
Communications networking technologies
Microsoft Office Suite
Engineering collaboration and documentation platforms

Physical Requirements

Ability to work in a standard office environment and use a computer for extended periods
Ability to review technical documentation, requirements specifications, architecture diagrams, and verification artifacts
Ability to participate in technical reviews, requirements reviews, design reviews, and cross-functional collaboration sessions
Ability to remain stationary for extended periods while performing systems engineering and documentation activities
May require occasional travel to support engineering reviews, integration activities, or stakeholder engagements

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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