Principal Software Research Engineer

At Fastly, we empower individuals and organizations to stay connected with what matters most. Our cutting-edge edge cloud platform allows customers to rapidly build exceptional digital experiences, ensuring security and reliability by processing, serving, and securing applications close to end-users—right at the edge of the Internet. Our platform leverages the modern internet's capabilities, designed for programmability and agile software development. We proudly serve leading global companies such as GitHub, Yelp, Paramount, and JetBlue.Join us in our mission to build a more trustworthy Internet.Posting Open Date: Updated March 31, 2026Anticipated Posting Close Date*: April 15, 2026*Job posting may close early due to the volume of applicants. Principal Release Engineer We are on the lookout for a Principal Release Engineer to enhance our Release Engineering team. This role involves setting up, maintaining, and developing ongoing continuous integration and deployment infrastructure. You will be responsible for creating and maintaining fully automated CI build processes across various environments, including our global edge cache fleet, internal applications, and those hosted in AWS and GCP. The ideal candidate is passionate about delivering a seamless release experience for engineers and possesses a profound understanding of their needs, code shipping processes, and what constitutes world-class delivery infrastructure. ResponsibilitiesDesign, develop, and maintain release tooling for building, packaging, signing, managing artifacts, and deploying software.Drive initiatives that enhance engineer productivity and satisfaction by shortening lead times for changes.Collaborate with development and SRE teams to establish policies, standards, guidelines, governance, and best practices for CI/CD operations.Assist developers with build automation, merge resolution, CI, test automation, and deployment aligned with tools usage and standards.Troubleshoot issues along the CI/CD pipeline.Participate in on-call support rotation. What we’re looking for10+ years of relevant platform engineering experience, including designing and operating distributed systems in production.Proven experience in building internal developer platforms that enhance developer productivity.

Join Procare Solutions as a Principal Engineer and play a pivotal role in shaping our cutting-edge technology solutions. We are seeking a forward-thinking engineer who is passionate about innovation and excellence. In this role, you will lead engineering projects, mentor junior engineers, and collaborate with cross-functional teams to deliver high-quality software products.

Join Crusoe as a Principal Design Engineer, where you will lead innovative engineering projects and improve our design processes. In this role, you will collaborate with cross-functional teams to create cutting-edge solutions, ensuring the highest quality standards are met. You will have the opportunity to mentor junior engineers and contribute to strategic design decisions that drive our company's success.

As a Principal Manufacturing Development Engineer at xcimer, you will be at the forefront of innovation, driving the development of advanced manufacturing processes. You will collaborate with cross-functional teams to design, implement, and optimize manufacturing solutions that enhance production efficiency and product quality. Your expertise will play a crucial role in our commitment to excellence and customer satisfaction.

At Credera, we are a premier global consulting firm, uniting transformational consulting capabilities with deep industry insight, AI, and technological expertise. Our mission is to deliver remarkable customer experiences and foster accelerated growth across diverse sectors. We are dedicated to evolving our services to align with the needs of future organizations and embody modern best practices. Our distinctive global approach allows us to provide customized solutions that transform some of the world's most influential brands and organizations.Our team, the heart of our organization, is driven by a passion to make a meaningful impact on our clients, colleagues, and communities. This commitment shapes how we allocate our time, resources, and talents. Our dedication to our workforce and work has garnered global recognition. To learn more, please visit our awards page: https://www.credera.com/awards-and-recognition

Xometry (NASDAQ: XMTR) drives innovation in today’s and tomorrow’s industries by connecting visionary thinkers with manufacturers capable of transforming their ideas into reality. Our digital marketplace equips manufacturers with essential resources for growth while simplifying access to global manufacturing capacities for Fortune 1000 companies.We are on the lookout for a Principal Software Engineer to spearhead the technical design and engineering of systems that anticipate and address challenges faced by our manufacturing clients. This team’s innovative solutions leverage ML model predictions, part geometry data, and customer insights to accurately forecast manufacturing costs and identify suitable partners for successful part production. Previous experience in manufacturing or machine learning is advantageous but not mandatory.The ideal candidate should possess over 8 years of industry experience, with a minimum of 4 years in a technical leadership role within a dynamic, collaborative environment. This position demands a blend of technical leadership and hands-on involvement. Our teams thrive on collaboration, cross-functionality, and rapid iteration.

Location: Denver, Colorado Remote Status: Fully Remote (#LI-Remote) LivePerson (NASDAQ: LPSN) stands at the forefront of trusted enterprise conversational AI and digital transformation. Our award-winning Conversational Cloud platform empowers the world's leading brands to engage with millions of consumers effectively. With nearly a billion conversational interactions every month, we provide rich data analytics and safety tools that harness the power of conversational AI, driving improved business outcomes. Fast Company has recognized LivePerson as the #1 Most Innovative AI Company globally. Position Overview We aim to revolutionize the Conversational AI (CAI) landscape by utilizing and innovating within the latest Generative AI technologies. We are in search of a Principal Engineer, AI Architect to spearhead the design and implementation of cutting-edge Generative AI solutions, reporting directly to the Head of Architecture. In this pivotal role, you will collaborate closely with the innovation team and other senior engineers, playing a key role in shaping the AI vision for LivePerson.

A new era in space exploration is upon us, and True Anomaly is on the front lines, seeking talented and ambitious individuals to develop cutting-edge technology that tackles the engineering, manufacturing, and operational challenges related to space security and sustainability.OUR MISSIONThe responsible utilization of space is crucial for ongoing global prosperity, impacting everything from communications and finance to navigation and logistics. At True Anomaly, we create transformative technology at the intersection of spacecraft, software, and AI, enhancing the capabilities of the U.S., its allies, and commercial partners. Our commitment is to uphold global security by ensuring equitable access to and sustainability of space.OUR VALUESBe the Offset. We leverage creativity and ingenuity to create asymmetric advantages.What Would It Take? We question assumptions to achieve ambitious outcomes.It’s the People. Our team is our competitive edge; collaboration makes us stronger.YOUR MISSIONTrue Anomaly is in search of an innovative Principal Thermal Engineer to spearhead the development of new spacecraft. In this pivotal role, you will collaborate with a diverse product team to swiftly design and produce groundbreaking space systems.

A new era of space exploration is upon us. True Anomaly is on the lookout for talented and ambitious individuals eager to design cutting-edge technology that addresses the engineering, manufacturing, and operational challenges of space security and sustainability.OUR MISSIONThe peaceful utilization of space is vital for the ongoing prosperity of our planet—from communications and finance to navigation and logistics. True Anomaly is committed to developing innovative technology at the nexus of spacecraft, software, and AI to bolster the capabilities of the U.S., its allies, and commercial partners. We are dedicated to safeguarding global security by ensuring sustainable access to space for everyone.OUR VALUESBe the offset. We create asymmetric advantages through creativity and ingenuity.What would it take? We challenge assumptions to achieve ambitious outcomes.It’s the people. Our team is our competitive edge, and we thrive together.YOUR MISSIONWe are in search of a seasoned Principal Compliance Engineer to spearhead the design and implementation of secure, compliant architectures within highly regulated cloud environments. This position demands profound expertise in STIG development, encryption standards, and vulnerability remediation, along with a robust foundation in DevOps and SecOps practices, particularly within the AWS and Azure Government platforms.The ideal candidate will possess a minimum of 10 years of experience in security engineering or technical compliance and will collaborate cross-functionally to align cloud infrastructure and operations with frameworks such as RMF (DoD IL5 and IL6) and CMMC. This is a hands-on technical role focused on enabling and maintaining system authorization through security automation, technical control implementation, and audit readiness.

Company OverviewRed 6 Technologies is at the forefront of Augmented Reality (AR) technology, paving the way for revolutionary synthetic air combat training. Our flagship offering, the ATARS product, empowers pilots to confront the cognitive challenges of flight through immersive, scalable training experiences set in dynamic outdoor environments.About the RoleWe are looking for a highly skilled Principal Mechanical Engineer - Structural and Vibration Analyst to join our team. In this pivotal role, you will engage in comprehensive analyses of advanced hardware for military jet and rotary-wing aircraft. The successful candidate will possess a solid foundation in structural and vibration analysis, along with expertise in thermal and CFD modeling, familiarity with military environmental standards, and experience with opto-mechanical systems.This position offers an exciting opportunity to contribute to cutting-edge technologies in augmented reality (AR), virtual reality (VR), and advanced optical sensor systems, fundamentally transforming pilot and warfighter training methodologies.Key ResponsibilitiesLead, mentor, and develop a team of Mechanical Analysis Engineers, providing technical guidance and fostering a culture of collaboration and innovation.Conduct in-depth structural, vibration, and modal analyses of aerospace hardware to ensure reliability and adherence to design and environmental standards.Perform shock and dynamic analyses, encompassing both steady-state and transient vibration scenarios.Execute CFD analyses to assess system performance during critical fluid flow events.Create finite element models and simulations with ANSYS Workbench, ensuring analytical results align with test data.Design and analyze electronic packaging and structural components tailored for extreme operational conditions.Collaborate closely with Mechanical, Optical, Electrical, Product, and Systems Engineering teams to produce integrated, flight-ready hardware.Guarantee compliance with relevant military and aerospace standards, including MIL-STD-810, MIL-STD-516, AS9100, and MMPDS specifications.Assist in the development of environmental test procedures and oversee testing programs.

Company OverviewRed 6 is a pioneering Augmented Reality (AR) technology startup that is revolutionizing synthetic air combat training. Our flagship technology, which underpins our ATARS product, empowers pilots to experience realistic cognitive challenges while engaging in scalable training within dynamic outdoor settings.Job SummaryAs a Principal Electrical Engineer at Red 6, you will be instrumental in the design and development of cutting-edge augmented reality systems tailored for aerospace applications. Your role will encompass the comprehensive execution of intricate electrical designs, from requirement derivation and circuit architecture to detailed design, integration, and qualification testing. Your contributions will be vital in delivering high-performance AR systems that adhere to rigorous aerospace and military standards.This position emphasizes technical contribution in hardware design, engineering excellence, and system integration. While there are no direct management responsibilities, you will provide technical guidance and mentorship to junior engineers and support the ongoing enhancement of engineering practices as the organization grows.Key ResponsibilitiesDesign, architect, and develop electrical hardware for rugged airborne applications.Manage the entire lifecycle of electrical hardware: design, simulation, schematic capture, PCB layout, bring-up, debugging, and integration.Convert high-level system requirements into precise electrical hardware specifications.Ensure compliance with MIL-STD-704 for power system interfaces, safeguarding against voltage transients, frequency deviations, and other power anomalies.Formulate verification strategies and testing plans to confirm adherence to electrical and environmental specifications (e.g., EMI, thermal, vibration).Assess and select components based on performance, availability, and compliance with military specifications.Participate in system architecture evaluations and risk analyses (e.g., FMEA, fault tree analysis).Develop and maintain comprehensive design documentation, including block diagrams, schematics, and test reports.Collaborate with mechanical, software, systems, and manufacturing engineers to ensure cohesive integration and optimal system performance.

Lead Principal Software Engineer – Flight SystemsLocation: Greater Denver, CO (on-site 3–5 days/week)Salary: $160,000–$195,000 + bonus + benefits + relocationJoin a dynamic and rapidly expanding space-technology company as a Lead Principal Software Engineer, where you will spearhead the architecture and development of advanced ground and flight software for lunar and deep-space missions. This pivotal role will significantly shape the technical trajectory of various mission programs.Key ResponsibilitiesDrive architectural decisions and establish software best practices across the organization.Design and implement flight software (cFS, embedded Linux), ground systems (Python, contemporary web frameworks), and cloud/embedded ML or autonomy systems.Manage the complete software lifecycle: requirements gathering, development, testing, integration, and operations.Prepare technical proposals, provide estimates, and facilitate cross-team coordination.Mentor and elevate junior engineers, fostering a culture of growth and learning.Qualifications15+ years of experience in spacecraft, mission control, or complex aerospace software systems.Proficiency in C/C++ and Python programming languages.Experience with embedded Linux and real-time/flight software; familiarity with NASA cFS is a plus.Strong knowledge of cloud services (AWS), containerization, version control, and Agile methodologies.Excellent collaborative skills to work with multidisciplinary teams and adhere to strict engineering standards.U.S. Citizenship and eligibility for a Security Clearance; must comply with export-control regulations.BenefitsAttractive salary package plus signing bonus.Comprehensive health insurance coverage.401(k) retirement plan with company match.Flexible time-off policies.Quarterly performance incentives.Relocation assistance available.

Company OverviewRed 6 stands at the forefront of Augmented Reality (AR) innovation, pioneering advancements in synthetic air combat training. Our flagship technology, integral to the ATARS product line, allows pilots to engage in realistic, scalable training that simulates the cognitive complexities of flying in dynamic outdoor settings.The RoleAs a Principal Software Engineer at Red 6, you will play a vital role in architecting and delivering state-of-the-art AR training and operational systems for pilots. This hands-on position requires you to tackle complex software development challenges, including working with rendering systems, game engine infrastructure, simulation frameworks, and the integration of hardware and software. Your contributions will directly enhance the capabilities of our military clients by integrating cutting-edge simulation technology with live aircraft.This role encompasses both functional management and active development, where approximately 25% of your time will be dedicated to management responsibilities, while the majority focuses on software development.Key Management ResponsibilitiesLead and mentor a talented team of software engineers specializing in AR/VR training systems.Conduct regular one-on-one meetings, performance reviews, and career development sessions while providing technical mentorship.Engage in coding, technical design reviews, and oversee code quality.Promote best practices in software development, including testing, optimization, and documentation.Collaborate with internal stakeholders, military partners, and cross-functional teams to define technical solutions that meet critical mission requirements.Cultivate a collaborative, innovative, and disciplined engineering culture that aligns with Red 6’s mission.Key Development ResponsibilitiesDesign, develop, and optimize high-performance C++ applications for both general-purpose CPU/GPU environments and embedded System-on-Chip (SoC) platforms.

Company OverviewRed 6 is a pioneering startup at the forefront of Augmented Reality (AR) technology, revolutionizing synthetic air combat training. Our flagship technology, which powers the Airborne Tactical Augmented Reality System (ATARS), allows pilots to encounter the cognitive challenges of flying while providing realistic, scalable training in dynamic outdoor settings.The RoleWe are in search of a Principal Systems Engineer to play a critical role in the development, integration, and verification of the ATARS throughout its entire product lifecycle. This position involves comprehensive system development, including requirements development and traceability, architecture definition, interface management, hardware/software integration, and leading formal design milestone reviews. The Principal Systems Engineer will collaborate in a cross-functional environment, working alongside hardware, software, optics, testing, and airworthiness teams to guarantee the technical performance, compliance, and mission readiness of complex integrated systems.ResponsibilitiesDevelop, decompose, and manage system and subsystem requirements utilizing approved requirements management tools.Establish and maintain the Requirements Verification Traceability Matrix (RVTM), ensuring bidirectional traceability from system requirements to verification artifacts.Create and manage Interface Control Documents (ICDs) for both internal and external system integrations (hardware, software, avionics, and platform interfaces).Lead and facilitate design milestone reviews, including System Requirements Review (SRR), Preliminary Design Review (PDR), Critical Design Review (CDR), and System Verification Review (SVR).Implement Model-Based Systems Engineering (MBSE) methodologies (SysML) to develop system architectures, functional decompositions, use cases, and interface models.Conduct trade studies and technical analyses to support design decisions and optimize performance.Manage resource allocations such as weight and power across various system components.Coordinate and oversee integration and verification activities in both laboratory and aircraft environments.Identify and manage technical risks, ensuring that mitigation plans are effectively established.Act as a technical liaison across internal teams and external partners to ensure alignment on system design and performance.

Join our dynamic team at Artech Information Systems LLC as a Release Manager / DevOps Specialist. In this pivotal role, you will oversee the deployment and integration of software applications while ensuring seamless operations across development and production environments. Your expertise will contribute to enhancing the efficiency of our development processes and improving the overall software release lifecycle.

Join the forefront of the new space race with True Anomaly, where we are looking for talented and ambitious individuals to innovate technology that addresses the engineering, manufacturing, and operational challenges for space security and sustainability.OUR MISSIONThe peaceful utilization of space is vital for continued prosperity on Earth, impacting areas from communications and finance to navigation and logistics. At True Anomaly, we develop cutting-edge technology at the intersection of spacecraft, software, and AI to bolster the capabilities of the U.S., its allies, and commercial partners. Our commitment ensures global security by promoting sustainable space access for all.OUR VALUESBe the offset. We create asymmetric advantages through creativity and ingenuity.What would it take? We challenge assumptions to achieve ambitious outcomes.It’s the people. Our team is our competitive edge, and we thrive together.YOUR MISSIONAs a pivotal member of the Applied Algorithms and Autonomy team, your role will involve developing and executing True Anomaly’s autonomy strategy. Collaborate with a skilled cross-functional team to advance innovative technologies that integrate artificial intelligence, machine learning, and autonomy.

A new era in space exploration is underway. True Anomaly is on the lookout for talented and ambitious individuals eager to develop pioneering technologies that address the upcoming engineering, manufacturing, and operational challenges in space security and sustainability.OUR MISSIONThe peaceful utilization of outer space is crucial for our ongoing prosperity on Earth—impacting areas ranging from communications and finance to navigation and logistics. At True Anomaly, we are dedicated to creating groundbreaking technologies at the intersection of spacecraft, software, and artificial intelligence, aimed at bolstering the capabilities of the U.S., its allies, and commercial partners. We are committed to protecting global security by ensuring sustainable access to space for everyone.OUR VALUESBe the offset. We generate asymmetric advantages through creativity and ingenuity.What would it take? We challenge conventional wisdom to achieve ambitious outcomes.It’s the people. Our team is our greatest asset, and we thrive together.YOUR MISSIONRESPONSIBILITIESLead the analysis and validation of spacecraft and/or missile defense systems to guarantee performance and survivability in dynamic environments, including launch, on-orbit, and mission operations.Conduct detailed structural dynamics analyses, encompassing modal, harmonic, random vibration, shock, and transient response simulations.Create documentation and best practices for the engineering team, including modeling tools, process documentation, and analysis templates.Develop and validate finite element models (FEMs) for spacecraft and/or missile structures and subsystems, ensuring precision in predicting dynamic behavior.Define and lead dynamic testing campaigns, including vibration, shock, and acoustic testing, to confirm structural integrity and correlate models with test outcomes.Collaborate with cross-functional teams such as mechanical, thermal, and systems engineering to ensure dynamic requirements are integrated into the design process.Offer expertise in structural dynamics during trade studies, design reviews, and key decision-making processes.

Join the Engineering leadership team at ServiceTitan, where you will play a pivotal role in steering the technical direction of our innovative products. As a rapidly expanding startup, we offer dynamic opportunities to make a significant impact. Our commitment to quality, utilization of cutting-edge tools on the Microsoft .NET platform, and our vibrant culture foster a collaborative environment where solving complex problems is our passion. Over 50,000 users rely on our software to streamline their daily operations.We seek a visionary Principal Software Engineer to oversee all technical facets of our engineering team. The ideal candidate will be a highly skilled leader with a forward-thinking mindset, responsible for shaping the technical vision of the squad and ensuring its successful execution. You will excel in balancing swift iteration and high product quality while embracing innovation and navigating ambiguity.Key Responsibilities:Own the complete short- and long-term technical vision for your team.Design, implement, and enhance critical systems within the ServiceTitan stack; focus on improving security, availability, reliability, and performance; actively engage in major architectural and strategic decisions related to scaling.Develop tools to enhance the efficiency of our engineers; work towards improving performance, processes, and quality across the engineering team.Identify and exploit opportunities for system development that benefit multiple teams.Mentor and guide engineers throughout the organization.Allocate your time approximately 60% to development and 40% to other responsibilities.Collaborate closely with the Recruiting team; participate in candidate interviews and contribute to lead generation and screening activities.Contribute to the strategic roadmap and resource planning.Establish success metrics and continuously monitor them.Effectively communicate with cross-functional teams, engineers, Product Managers, customers, and partners.

The new era of space exploration is here. True Anomaly is on the lookout for talented and ambitious individuals to develop groundbreaking technologies that tackle the future challenges of engineering, manufacturing, and operations in the realm of space security and sustainability.OUR MISSIONEnsuring the peaceful utilization of space is vital for the ongoing prosperity on Earth. True Anomaly innovates at the crossroads of spacecraft technology, software, and artificial intelligence to bolster the capabilities of the United States, its allies, and commercial partners. Our commitment is to safeguard global security by facilitating access to space and promoting sustainability for all.OUR VALUESBe the offset. We generate asymmetric advantages through creativity and ingenuity.What would it take? We question assumptions to achieve ambitious results.It’s the people. Our team is our greatest asset, and together we are stronger.RESPONSIBILITIESOversee the complete development lifecycle of spacecraft Guidance, Navigation, and Control (GNC) systems, encompassing architecture definition, algorithm creation, software implementation, hardware integration, verification, and flight operations.Design, test, and validate GNC flight software for spacecraft operating in Low Earth Orbit (LEO), Geostationary Orbit (GEO), and cislunar environments.Collaborate closely with cross-functional teams to ensure the successful integration of GNC systems with other spacecraft components.