Principal Engineer BlackLine SystemsPrincipal EngineerPleasanton, CA$257,000–$322,000 / yearMake Your Mark: As a Principal Software Engineer, you will play a crucial role in delivering high quality releases to our customers by defining application architecture, designing, developing, troubleshooting, maintaining, optimizing, and scaling BlackLine's cloud-based backend services and driving innovation into our product suite. You will research, test, benchmark and evaluate new technologies, propose scaling solutions, collaborate with other teams to define, and build new features, optimize existing features while writing elegant code, coaching, and mentoring less experienced software engineers and communicating with people at all levels.
Sr. Principal Engineer - Cortex Xpanse, Collections Palo Alto NetworksSr. Principal Engineer - Cortex Xpanse, CollectionsFor candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/com-missioned roles) is expected to be the annual range listed below. Partnering closely with engineering leadership, you will define our long-term roadmap while actively mentoring and elevating engineering talent across the organization.
Principal Engineer - Cortex Xpanse, Collections Palo Alto NetworksPrincipal Engineer - Cortex Xpanse, CollectionsAs a Principal Software Engineer, you will drive the design of scalable services and collaborate with engineering peers, product managers, and leadership to execute end-to-end, mission-critical initiatives that directly impact our platform's success. For candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/com-missioned roles) is expected to be the annual range listed below.
Principal Software Engineer Thomson ReutersPrincipal Software EngineerFrisco, New YorkFinally, Thomson Reuters offers the following additional benefits: optional hospital, accident and sickness insurance paid 100% by the employee; optional life and AD&D insurance paid 100% by the employee; Flexible Spending and Health Savings Accounts; fitness reimbursement; access to Employee Assistance Program; Group Legal Identity Theft Protection benefit paid 100% by employee; access to 529 Plan; commuter benefits; Adoption & Surrogacy Assistance; Tuition Reimbursement; and access to Employee Stock Purchase Plan. Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.
Principal Engineer (Machine Learning) Palo Alto NetworksPrincipal Engineer (Machine Learning)In this role, you will combine robust backend engineering expertise with machine learning expertise to build, deploy, and maintain a cutting-edge Behavior Analytics system that enhances user experiences and operational efficiency. For candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/com-missioned roles) is expected to be the annual range listed below.
Principal Engineer RelativityPrincipal EngineerIllinoisThey shape how industries uncover critical insights, ensure compliance, advance access to justice and continuously evolve our platform using the latest technologies, including cloud-native architectures, AI capabilities, and modern developer tooling. Agile Methodology, Algorithms, Automation, Big Data Processing, Distributed Systems, Mentorship, Problem Solving, Software Architectures, Strategic Planning, System Designs, Technical Leadership
Senior Principal Engineer Software (Unit 42) Palo Alto NetworksSenior Principal Engineer Software (Unit 42)CaliforniaThis role is for a 'Full-stack aware' engineer who prioritizes backend resilience and scalability, is an expert in leveraging AI-assisted environments like Cursor or Claude to maximize code velocity, and will initially own critical backend initiatives as an Individual Contributor while preparing to grow and mentor a team of junior backend engineers. Lead the design and implementation of highly resilient, distributed backend services (Go, Python, C++), prioritizing deep backend architectural health while maintaining sufficient frontend literacy to guide full-stack product outcomes.
Principal Engineer - Airborne Hardware Data Device CorporationPrincipal Engineer - Airborne HardwareAlbuquerque, NMGreat River Technology (GRT) is searching for a Principal Hardware Engineer to serve as a Subject Matter Expert (SME) in ARINC 818 digital video interface design, testing, simulation, and VHDL implementation within the aerospace domain. For more than 60 years, Data Device Corporation (DDC) has been recognized as a world leader in the design and manufacture of high-reliability Connectivity, Power, and Control solutions for the Aerospace, Defense, and Space industries.
NewPrincipal Engineer Software (Prisma AIRS Backend - Runtime Security) Palo Alto NetworksPrincipal Engineer Software (Prisma AIRS Backend - Runtime Security)You will partner with executive leadership, product management, UX designers, ML engineers, and cross-functional engineering teams to conceptualize, architect, and deliver enterprise-grade, cutting-edge solutions for the Prisma AIRS Runtime Security product. Proven track record of designing enterprise-wide Microservices architectures, building, and deploying high-throughput, globally scaled APIs to meet strict SLOs, maximize throughput, and reduce compute costs in production.
NewPrincipal Engineer Software (Full-Stack- Prisma Browser) Palo Alto NetworksPrincipal Engineer Software (Full-Stack- Prisma Browser)For candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/com-missioned roles) is expected to be the annual range listed below. We are looking for a talented Principal Full-Stack Engineer that will leverage their extensive experience in both frontend and backend technologies to shape and enhance our product.
NewSenior Welding Engineer HermeusSenior Welding EngineerLos Angeles, CAThis position will support manufacturing and development of Hermeus vehicles and will help stand up welding processes, develop, qualify, and optimize welding designs and processes including but not limited to laser beam welding, gas tungsten arc welding, resistance welding, gas metal arc welding, and plasma arc welding. Develop, optimize, and qualify weld processes and parameters for multiple welding processes including but not limited to laser beam welding, gas tungsten arc welding, resistance welding, gas metal arc welding, and plasma arc welding.
NewPrincipal Engineer – Propulsion RTXPrincipal Engineer – PropulsionArizonaAbility to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. Ten (10) or more years of directly related experience in propulsive technology and its application to air breathing propulsion systems (turboprop, turbine, scramjet/ramjet, RDE, VFDR, fuel bladders, fuel systems), Solid Propulsion systems, and/or liquid propulsion systems.
NewSenior Principal Engineer - Lubrication Systems (Onsite) RTXSenior Principal Engineer - Lubrication Systems (Onsite)East Hartford, ConnecticutMechanical Systems, Externals, & Nacelles (MSEN) : The MSEN organization is responsible for the design, development, and in-service support of power transmission systems, bearing compartment and rotor support design and analysis, oil and thermal management systems, engine externals packaging and architecture, as well as nacelles for commercial and military engine models. Bachelor's degree in Mechanical Engineering, Aerospace Engineering, Systems Engineering, or a related field and 10 years of relevant engineering experience, or an advanced degree in a related field and 7 years of relevant engineering experience.
Principal Engineer, Game Systems LevelPrincipal Engineer, Game SystemsAustin, TexasIf you want to use your skills to make a difference for the world, we're seeking a talented Principal Engineer, Game Systems to join our team and help us build our core products while keeping scalability, usability, and performance in mind. We combine proven curriculum principles with world class interactive design to make meaningful practice something students want to come back to, not something they struggle through.
Principal Engineer (Us) DayshapePrincipal Engineer (Us)Jersey City, NJ$150,000–$170,000 / yearRecognised as Scotland's fastest-growing tech company in the Deloitte Technology Fast 50 for three consecutive years and more recently as the Enterprise Digital Tech Business of the Year at the 2024 ScotlandIS awards, we've consistently proven our ability to innovate and deliver real impact—and we're always looking for like-minded people to join us. As Principal Engineer, Client Integrations, you'll provide technical consultancy to our US Professional Services team, shape solution design on major client projects, and raise technical capability across the team through mentoring and leadership.
Principal Engineer, Agentic Journey Engineering Lead Independence Pet GroupPrincipal Engineer, Agentic Journey Engineering LeadChicago, IllinoisThe successful candidate operates comfortably at hands-on levels — owning reference implementations, leading a growing engineering team, mentoring engineers, and partnering with product, data, security, and enterprise architecture leaders, operating within architecture guardrails set by AI Architecture, to deliver AI-native customer experiences at scale. This role will develop, integrate, and deliver agentic solutions that span enterprise platforms including Dynamics 365 CRM, Dynamics 365 Copilot agents, insurance applications, conversational interfaces, web, mobile, and back-office systems of record.
Principal Engineer, Agentic AI Systems Inflection AIPrincipal Engineer, Agentic AI SystemsPalo Alto, CA$400,000–$550,000 / yearYou'll build production AI agents that can reason, retrieve context, use tools, and safely execute complex workflows while driving the design of scalable agent architectures, evaluation frameworks, observability, and reliability systems. 10+ years of engineering experience, including 3+ years at staff/principal or equivalent scope, and 2+ years building production-grade agentic or LLM-powered systems used by real customers.
Principal Engineer, Embedded, Sensors, And Safety Software OutriderPrincipal Engineer, Embedded, Sensors, And Safety SoftwareHenderson, CO$165,000–$190,000 / yearSuccessful candidates have a demonstrated technical track record in designing and implementing robust Software Test Infrastructure for complex hardware-based systems, bringing an exceptional system-level perspective and proficiency in software. The ideal candidate will embrace our goal to drive zero-emission, self-driving vehicle adoption, and help us realize our potential to define, build, and lead a new category of robotic automation for the enterprise.
Principal Engineer, Vaida User Experience Vertex Pharmaceuticals, IncPrincipal Engineer, Vaida User ExperienceBoston, MA$166,640–$250,000 / yearThe ideal candidate blends strong frontend engineering expertise with exceptional UX and product instincts, translating complex backend capabilities into user experiences that are clear, intuitive, and scalable for 10,000+ employees. At Vertex, our Total Rewards offerings also include inclusive market-leading benefits to meet our employees wherever they are in their career, financial, family and wellbeing journey while providing flexibility and resources to support their growth and aspirations.
Principal Engineer Signal Integrity Power Integrity Global FoundriesPrincipal Engineer Signal Integrity Power IntegrityRichardson, TX$153,000–$296,000 / yearDrive die-package-board co-design and related engineering work on interface placement, IO planning, bump assignment, floorplan optimization, package routing, board stackup definition, and power delivery implementation to achieve optimal electrical performance across the complete system. Experience engaging and driving package vendors, PCB vendors, OSAT partners, foundries, and ecosystem suppliers and exposure to advanced packaging roadmaps and semiconductor manufacturing ecosystems is highly preferred.