Top Principal Engineer Jobs in Denver & Boulder, CO

Lead NVMe front-end firmware verification for enterprise SSDs: define verification strategy, build scalable Python-based test automation, perform root-cause failure analysis, drive CI/CD and test infrastructure, apply AI/ML for test optimization, mentor engineers, and collaborate with firmware architects to improve testability and quality.

Leads systems engineering for space-based infrared sensor payloads supporting missile warning and tracking. Oversees requirements, architecture, supplier activities, interfaces, verification, sensor performance, detection and tracking algorithms, modeling, simulation, integration, testing, calibration, and on-orbit operations. Coordinates multidisciplinary teams and customer interfaces while managing technical risks, performance margins, anomalies, and mission-level track accuracy. Provides senior technical authority and mentorship across payload, spacecraft, software, algorithms, GNC, and mission operations.

The role involves designing and leading the development of focal plane subsystems for space applications, overseeing project execution, and collaborating with technical teams.

Lead the design, development, integration, testing, and delivery of real-time space vehicle simulators in hardware-in-the-loop and digital environments. Define requirements and architectures, guide technical decisions, develop software across its lifecycle, deploy containerized simulation services, and ensure simulator products meet mission-critical operational use cases. Collaborate within Agile, DevSecOps, and cross-functional engineering teams.

Lead the design, development, integration, testing, and delivery of real-time space vehicle simulators in hardware-in-the-loop and software-only environments. Define requirements, architectures, interfaces, use cases, and verification strategies while providing technical leadership. Develop operational software using C/C++, Ruby, or Python; deploy containerized simulation services; and apply systems engineering, Agile, DevSecOps, version control, and formal development practices.

Leads space vehicle architecture and systems engineering for new business pursuits, including architecture trades, requirements definition, customer engagement, proposals, technical baselines, design reviews, and transition to execution. Provides technical leadership across spacecraft subsystems, supports capture teams, develops engineering documentation, manages risks, coaches systems engineers, and collaborates with customers, partners, and cross-functional teams.

Leads the design, development, integration, testing, and delivery of real-time space vehicle simulators in hardware-in-the-loop and software-only environments. Defines requirements, architectures, interfaces, and validation approaches; makes technical decisions; guides simulator development teams; and performs full software lifecycle activities. Develops containerized simulation services using Podman or Docker and applies Agile, GitLab, coding standards, and DevSecOps practices. Requires aerospace systems expertise, simulation experience, and an active Top Secret clearance.

Leads the design, development, integration, and testing of real-time space vehicle simulators in hardware-in-the-loop and software-only environments. Defines requirements, architectures, interfaces, and validation strategies while guiding technical decisions and quality assurance. Performs full software lifecycle activities and deploys containerized simulation services using modern Agile, DevSecOps, and version-control practices. Requires expertise in systems engineering, C/C++, MATLAB/Simulink, real-time operating systems, control theory, and simulator development.

Leads space vehicle architecture and systems engineering for new business pursuits, including architecture trades, system definition, requirements development, customer engagement, proposal support, design reviews, technical baseline management, and transition to program execution. Provides technical leadership across multidisciplinary teams, develops spacecraft and space vehicle solutions, assesses technical and business risks, supports customer presentations, and coaches systems engineers.

Leads mission architecture across the systems engineering lifecycle, from concept development and trade studies through implementation and launch. Defines architectures, CONOPS, requirements, and technology roadmaps using MBSE. Supports proposals, business capture, IRAD, customer relationships, and multidisciplinary technical teams across ground, air, and space domains. Mentors systems engineers and communicates complex technical strategies to senior leaders and government or industry customers.

Leads mission architecture from concept through implementation and launch across ground, air, and space domains. Defines system architectures, CONOPS, requirements, and trade studies; applies MBSE and modeling practices; supports proposals, capture, IRAD, and technology roadmaps. Coordinates multidisciplinary teams, mentors systems engineers, and builds customer relationships. Requires active Secret clearance with ability to obtain Top Secret/SCI and five-day on-site work.

Leads mission architecture across the full systems engineering lifecycle, from concept development and trade studies through implementation and launch. Defines CONOPS, system requirements, MBSE models, and technical roadmaps across ground, air, and space domains. Supports proposals, capture efforts, IRAD, customer relationships, and multidisciplinary technical teams. Mentors systems engineers and communicates complex architectures to senior leadership and government or industry customers.

Leads space vehicle architecture and systems engineering for new business pursuits, including architecture trades, requirements definition, customer engagement, proposal development, technical baselines, and design reviews. Supports capture teams, assesses technical and program risks, drives spacecraft capability reuse, and transitions pursuits into execution. Leads and coaches systems engineering teams, manages workloads, develops technical documentation, and collaborates with customers, partners, and internal stakeholders across spacecraft, payload, launch, and ground systems.

Leads mission performance modeling, simulation, trade studies, sensitivity analysis, optimization, and requirements derivation for complex space, air, and ground architectures. Develops analytical tools, quantifies mission effectiveness, establishes performance metrics, communicates technical findings to customers and executives, mentors engineers, and supports strategic proposals. Requires Python proficiency, systems analysis expertise, and an active Secret clearance with ability to obtain Top Secret/SCI.

Leads mission performance modeling, simulation, trade studies, sensitivity analysis, requirements derivation, and optimization for space, air, and ground architectures. Develops analytical tools, quantifies mission effectiveness, establishes performance metrics, and translates complex results into customer and executive narratives. Mentors engineers and supports technical proposals and strategic business planning. Requires Python proficiency, active Secret clearance, and on-site work five days per week.

Leads mission architecture across space and defense programs from concept development through implementation and launch. Performs architecture development, trade studies, CONOPS definition, and MBSE modeling while translating customer needs into technical solutions. Supports proposals, capture activities, IRAD, and technology roadmaps; leads multidisciplinary teams, develops customer relationships, and mentors systems engineers. The role requires expertise across ground, air, and space domains and regular onsite work.

Leads mission performance modeling and simulation for space, air, and ground architectures. Conducts predictive, trade-off, sensitivity, and requirements analyses; develops algorithms and modeling tools; establishes performance metrics; and translates complex results into recommendations for leadership and customers. Mentors junior engineers and supports technical proposals and strategic business planning. Requires Python, engineering analysis, and an active Secret clearance with ability to obtain Top Secret/SCI.

Leads mission architecture from concept through implementation and launch across ground, air, and space domains. Defines system architectures, CONOPS, requirements, and trade studies using MBSE. Supports proposals, business capture, IRAD, customer relationships, and technology roadmaps. Leads and mentors multidisciplinary engineering teams while communicating complex technical concepts to senior leaders and government or industry customers.

Leads mission architecture across space and defense programs from concept development through implementation and launch. Defines system architectures, CONOPS, requirements, and technical trade studies; applies MBSE; supports proposals, capture, IRAD, and technology roadmaps; develops customer relationships; and leads, mentors, and coordinates multidisciplinary engineering teams.

Lead the development and integration of advanced GNC systems for spacecraft, ensuring technical excellence and reusable designs across multiple programs.

Provides technical leadership for spacecraft and ground-based harnessing and interconnect architecture. Leads harness design, standards, component selection, electrical analysis, EMI/EMC mitigation, integration, testing, qualification, anomaly resolution, and design reviews. Acts as the responsible engineer across multidisciplinary programs, mentors engineers, influences technical strategy, and supports continuous process improvement. The role requires extensive spaceflight harness experience, advanced CAD routing skills, and expertise in aerospace workmanship and validation standards.

Build and operate AWS and Azure cloud platform foundations, including landing zones, multi-account structures, account vending, Terraform modules, guardrails, CI/CD, centralized monitoring, and configuration-drift remediation. Lead and mentor platform engineers, establish reference architectures and self-service patterns, review application designs, author architecture decisions, and represent the platform in governance forums. The role supports regulated environments, AWS GovCloud, and large-scale data center migration.

Provides technical leadership for Bluehost’s large-scale hosting platform. Sets architecture standards, designs Python and MySQL backend systems on Linux, modernizes Perl and cPanel integrations, and drives reliability engineering practices. Leads complex incident root-cause analysis, establishes AI-augmented delivery standards, mentors senior engineers, and shapes multi-quarter technical roadmaps across the organization.

Own the architecture, product direction, and hands-on development of Phoenix’s payments infrastructure across processors, gateways, vaults, tokenization, wallets, routing, authorization, disputes, fraud, reconciliation, and reliability. Lead merchant and processor integrations, improve approval rates, manage payment-method portability, maintain PCI-compliant systems, and own incident response. The role combines principal engineering with payments product ownership, requiring direct customer engagement, roadmap decisions, technical design, coding, and accountability for business outcomes.

Leads architecture, design, development, deployment, and production support for complex enterprise software and cloud-native solutions. Advises strategic customers, resolves critical technical issues across application and infrastructure layers, shapes product direction, and drives engineering excellence through modern development practices. Mentors engineers, guides architecture decisions, and collaborates with product, QA, DevOps, SRE, and infrastructure teams. The role primarily supports HealthEdge’s healthcare claims administration platform and customer implementations.