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Actively participate in the development process through writing and maintaining application features and automated tests including unit tests, component tests, integration tests, functional tests, performance tests, scenario tests, and interoperability tests. Use your knowledge of testing and testability to influence better software design, promote proper software engineering and bug prevention strategies, testability, and security.

HCL Global Systems Inc.

Principal Software Engineer in Test

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ADAPTED_NOW

Operating at a principal level, this role goes well beyond traditional requirements gathering—serving as a trusted advisor, systems strategist, and transformation leader across large, multi-phase programs involving D365 Finance & Operations, and integrated enterprise platforms. This role partners closely with Finance and Go To Market teams and IT leadership to translate complex business objectives into scalable, compliant, and future-ready system solutions.

YEAR

Sr Principal SW Development Engineer

Kronos

They play a pivotal role in delivering data needs, identifying and driving documentation and process improvements, performing support activities for Technology Services, and engaging technology and business users for ideas to improve the user experience. Partner closely with vendors, service providers, the business and internal team to define and understand analytics needs in order to achieve key performance indicators and Service Level Agreements for the benefit of Vistra and its business objectives.

Vistra Corp

Principal Devops Platform Engineer

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Deliver quantity take-offs and cost estimates for projects within tight deadlines while applying core engineering principles and a comprehensive mechanical engineering toolkit to solve complex technical challenges. Deliver comprehensive updates on design concepts and project progress during structured milestone reviews at the 30%, 60%, 90%, and IFC stages, engaging stakeholders and multidisciplinary teams to ensure strategic alignment and transparency.

At Amazon, we don’t wait for the next big idea to present itself. We envision the shape of impossible things and then we boldly make them reality. So far, this mindset has helped us achieve some incredible things. Let’s build new systems, challenge the status quo, and design the world we want to live in. We believe the work you do here will be the best work of your life. 
Wherever you are in your career exploration, Amazon likely has an opportunity for you. Our research scientists and engineers shape the future of natural language understanding with Alexa. Fulfillment center associates around the globe send customer orders from our warehouses to doorsteps. Product managers set feature requirements, strategy, and marketing messages for brand new customer experiences. And as we grow, we’ll add jobs that haven’t been invented yet. 
It’s Always Day 1 
At Amazon, it’s always “Day 1.” Now, what does this mean and why does it matter? It means that our approach remains the same as it was on Amazon’s very first day – to make smart, fast decisions, stay nimble, invent, and stay focused on delighting our customers. In our 2016 shareholder letter, Amazon CEO Jeff Bezos shared his thoughts on how to keep up a Day 1 company mindset. “Staying in Day 1 requires you to experiment patiently, accept failures, plant seeds, protect saplings, and double down when you see customer delight,” he wrote. “A customer-obsessed culture best creates the conditions where all of that can happen.” You can read the full letter <a href="https://hiring.amazon.com/why-amazon/culture#/">here</a> 
Our Leadership Principles 
Our Leadership Principles help us keep a Day 1 mentality. They aren’t just a pretty inspirational wall hanging. Amazonians use them, every day, whether they’re discussing ideas for new projects, deciding on the best solution for a customer’s problem, or interviewing candidates. To read through our Leadership Principles from Customer Obsession to Bias for Action, visit <a href="https://www.amazon.jobs/principles" target="_blank">https://www.amazon.jobs/principles</a>

Amazon.com Inc

Principal Mechanical Engineer, Advanced Manufacturing

As part of our investment in technology, we are looking for a Principal Software Engineer to play a key role in developing critical back-end systems within our engineering ecosystem, specifically focused on systems related to payments, transactions, and customer rewards. Expect to collaborate closely with engineering leadership and numerous other engineering teams throughout our tech organization to build out new systems.

GameStop's rapidly growing, multiple-brand business model provides talented people with many ways to develop and grow their career. We are committed to the ongoing talent development of all GameStop associates and offer unique learning opportunities through our proprietary LevelUp Interactive, LevelUp Leadership, and high-potential talent development programs.

GameStop Corp

Principal Software Engineer - Java

We're one of the largest engineering and system integration firms in the United States providing value for our clients through IT automation and control solutions for more than 30 years to the Life Sciences, Mission Critical, Metals & Mining, Warehousing & Distribution, and CPG/Food & Beverage industries. Our Mission Critical Team is seeking a senior technical expert to provide advanced engineering leadership and hands-on expertise in the design and delivery of complex automation and control system integration projects.

E-Technologies Group LLC

Principal Controls Engineer

Thousands of professionals deploying home efficiency and solar solutions rely on GoodLeap's proprietary, AI-powered applications and developer tools to drive more transparent customer communication, deeper business intelligence, and streamlined payment and operations. About GoodLeap: GoodLeap is a technology company delivering best-in-class financing and software products for sustainable solutions, from solar panels and batteries to energy-efficient HVAC, heat pumps, roofing, windows, and more.

GoodLeap

Principal Software Engineer, Enterprise Platform Apis

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Specific experience with the design, development, and production of complex military electronics subsystems, especially those including mixed signal CCAs, synthesizers, frequency converters, high-speed processors and FPGAs. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

Principal Radar Backend Electronics Lead

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As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Principal Radar Power Lead

This role will own end-to-end physical design execution across complex designs, driving delivery from RTL to silicon for cutting-edge technology nodes. The ideal candidate demonstrates deep technical expertise to implement a given design on silicon with optimized quality and meeting PPA targets.

NXP Semiconductor, Inc.

Principal Physical Design Engineer

NXP Semiconductors NV

Principal Physical Design Engineer / Physical Design - ACE US

Headquartered in Silicon Valley, California, Archer is a leader in the next-gen aerospace sector building an end-to-end advanced air mobility platform that delivers air taxis, unmanned aircraft systems ("UAS"), aviation-related physical artificial intelligence ("AI") solutions, and other technologies to customers worldwide across the commercial aerospace and defense sectors. Communicate regulatory requirements in a clear and concise manner to the teams and other Archer teams to ensure all stakeholders understand the scope of compliance activities.

Archer Aviation

Principal Certification Engineer

As part of the Applications Engineering team, you will work with both internal engineering teams to develop collaterals to ease customer adoption of our SerDes solutions, as well as with NXP's field teams and customer engineering teams to ensure successful system design and bring-up. Familiarity with high-speed data communication protocols and interfaces, including Ethernet networking and switching, MIPI CSI-2, and display protocols (DP/eDP).

Principal Applications Engineer

RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

Radar Principal Systems Engineer

Raytheon’s Naval Airborne Systems (NAS), a sub strategic business unit within Naval Power, is seeking an Algorithm Principal Systems Engineer to support algorithm development and analysis activities across multiple programs and Internal Research and Development (IRAD) efforts within the Advanced Sensor Programs portfolio. The Algorithm Principal Systems Engineer will work on site alongside other systems engineers, provide technical direction to a small team of algorithm analysts, and support both the chief engineer and the lead systems engineer.

Algorithm Principal Systems Engineer

Serve as a senior technical leader capable of delegating and reviewing work from lower‑level engineers, ensuring disciplined implementation of major system algorithms including tracking, alignment, coordinate transformation, sensor line‑of‑sight, image alignment, and laser‑enabled operations. Demonstrated leadership experience, formal or informal, such as mentoring junior engineers, coordinating small technical initiatives, facilitating team collaboration, driving engineering best practices, and/or guiding peers toward successful delivery.

Principal Software Engineer Lead - High Energy Laser (HEL) Beam Director Product Owner

Active and existing security clearance required after day 1 At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. Leverage subject matter expertise in system of systems architecture, inter CSCI interfaces, software requirements, and SW/HW integration to drive technical clarity across a broad array of potential sensor and effector integrations.

Principal Software Engineer (Mission Systems) (Onsite)

A criminal history may have a direct, adverse, and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment: 1. appropriately managing, accessing, and handling confidential information including proprietary and trade secret information, as well as accessing Procore's information technology systems and platforms; 2. interacting with and occasionally having unsupervised contact with internal/external customers, stakeholders, and/or colleagues; and 3. exercising sound judgment. Design, build, deploy, and maintain custom MCP servers and connectors that securely link Claude to enterprise business platforms (including Salesforce, Zuora, NetSuite, Databricks, and Workday) based on prioritized business workflows.

Procore Technologies

Principal Platform Engineer, MCP & Connectors

This role blends engineering leadership, hands‑on engineering, hardware‑in‑the‑loop testing, and cross‑disciplinary collaboration to deliver reliable, flight‑ready systems. With the first generational leap in rocket engine technology since Apollo, our proprietary Rotating Detonation Rocket Engine and Venus Detonation Ramjets deliver historic efficiency and performance across aerospace applications.

Venus Aerospace

Principal GNC Engineer

A criminal history may have a direct, adverse, and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment: 1. appropriately managing, accessing, and handling confidential information including proprietary and trade secret information, as well as accessing Procore's information technology systems and platforms; 2. interacting with and occasionally having unsupervised contact with internal/external customers, stakeholders, and/or colleagues; and 3. exercising sound judgment. As the Staff Network Engineer on our IT Infrastructure team , you will work closely with Security, Cloud/Platform Engineering, IT leadership, and external partners to establish reference architectures, advance our Zero Trust/SASE strategy, and build scalable network automation.

Principal Engineer Jobs in Texas

Principal Software Engineer in Test HCL Global Systems Inc.

Sr Principal SW Development Engineer UKG

Principal Devops Platform Engineer Vistra Corp

Principal Mechanical Engineer, Advanced Manufacturing Amazon.com Inc

Principal Software Engineer - Java GameStop Corp

Principal Controls Engineer E-Technologies Group LLC

Principal Software Engineer, Enterprise Platform Apis GoodLeap

Principal Radar Backend Electronics Lead RTX

Principal Radar Power Lead RTX

Principal Physical Design Engineer NXP Semiconductor, Inc.

Principal Physical Design Engineer / Physical Design - ACE US NXP Semiconductors NV

Principal Certification Engineer Archer Aviation

Principal Applications Engineer NXP Semiconductors NV

Radar Principal Systems Engineer RTX

Algorithm Principal Systems Engineer RTX

Principal Software Engineer Lead - High Energy Laser (HEL) Beam Director Product Owner RTX

Principal Software Engineer (Mission Systems) (Onsite) RTX

Principal Platform Engineer, MCP & Connectors Procore Technologies

Principal GNC Engineer Venus Aerospace

Principal Network Engineer Procore Technologies

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