Top Principal Engineer Jobs in Denver & Boulder, CO

Leads systems engineering for satellite assembly, integration, and testing across engineering test-bed and flight vehicles. Owns requirements derivation, decomposition, allocation, and traceability; drives system integration, verification, risk reduction, technical investigations, milestone reviews, and customer alignment. Develops architectures, manages technical risks, mentors engineers, and contributes to systems engineering policies and processes for a national security space mission.

Principal Engineer responsible for defining technical vision, designing and delivering large-scale distributed systems, writing production code, and guiding major architectural decisions. The role establishes engineering standards, develops reusable systems, mentors senior engineers, supports roadmap and resource planning, and contributes to technical hiring. Key work includes cloud infrastructure, data architecture, AI/ML and LLM systems, monolith-to-microservices migrations, scalability, reliability, security, performance, and observability.

Designs, models, and updates mechanical systems using CAD tools; creates bills of material, engineering drawings, tolerances, and requirements. Collaborates with systems, electrical, manufacturing, and supply-chain teams to ensure manufacturability and integration. Participates in design reviews, configuration control, troubleshooting, build, integration, and testing activities. Maintains CAD documentation and supports mechanical issue resolution in an aerospace and defense environment.

Develops, integrates, tests, debugs, documents, and sustains Java software for a ground-based space-domain-awareness radar. Builds Spring Boot microservices, containerized applications, REST APIs, and data-processing systems using Kubernetes, GitLab CI/CD, Linux, and relational databases. Supports distributed, real-time, mission-critical defense systems while applying systems engineering, secure coding, observability, performance tuning, and root-cause analysis practices.

Designs and integrates RF and analog radar subsystems for a ground-based Space Domain Awareness radar. Responsibilities include defining hardware architecture, developing specifications and statements of work, managing subcontractors, conducting RF lab characterization, performing compliance analysis, documenting bills of material and drawings, supporting integration and checkout, and leading trade studies. The role requires RF signal-chain and test-equipment expertise, systems engineering lifecycle experience, subcontract management, and an active Secret clearance with eligibility for Top Secret/SCI access.

Leads semiconductor wafer-fab yield enhancement and product technology responsibilities. Analyzes production and engineering data, investigates root causes of parametric and wafer-sort yield issues, conducts process experiments, performs failure analysis, dispositions material, and drives corrective actions. Supports new product introductions, process transfers, specifications, process flows, yield-limit maintenance, and continuous improvement while coordinating with process, product, design, and test engineering teams.

Leads end-to-end technical development and operational delivery of space-based systems. Serves as mission design authority, manages technical risks, guides systems engineering, leads design reviews and readiness boards, and aligns multidisciplinary teams with customer and executive priorities. Develops CONOPS, oversees hardware lifecycle execution, briefs senior government stakeholders, establishes engineering standards, and mentors engineers.

Lead the technical direction of complex space-based missions from concept through operational delivery. Serve as the chief technical authority, guiding multidisciplinary engineering teams, mission architecture, systems engineering, design trade studies, risk mitigation, technical reviews, and hardware integration and testing. Act as the primary technical liaison to government customers and executives, deliver strategic briefings, establish engineering standards, and mentor engineering staff. The role is fully on-site and may require travel between campuses and other locations.

Leads the technical development and delivery of complex space-based missions across the full hardware and systems lifecycle. Provides systems engineering authority, drives requirements, CONOPS, design trade studies, risk mitigation, verification and validation, and technical governance. Acts as the primary technical liaison for government customers and executives, delivers strategic briefings, mentors engineering teams, and establishes engineering standards. The role is on-site five days per week and may require travel between company and other facilities.

Principal Engineer responsible for architecting, building, testing, deploying, and operating full-stack TypeScript applications. The role leads React and Next.js front ends, Node.js services, APIs, cloud infrastructure, integrations, databases, CI/CD, observability, security, and AI capabilities. It owns products end to end, establishes engineering standards, partners with creative and operations teams, and provides technical leadership on client projects. Strong autonomy, communication, architecture, and production operations skills are required.

Architects and optimizes embedded Layer 2/Layer 3 protocol stack software for 4G/5G cellular systems. Develops new product capabilities, interprets communications standards, troubleshoots complex customer defects, and collaborates with distributed engineering teams to integrate, validate, and improve system performance.

Leads the architecture and delivery of complex software-intensive systems across cloud platforms, distributed systems, AI-enabled products, mission software, and operational environments. Defines system boundaries, interfaces, integration strategies, and technical direction across teams; drives trade studies, risk mitigation, validation, operational readiness, and customer adoption. Partners with product and engineering leaders, influences without direct authority, improves technical standards, and mentors senior technical leaders while applying AI to accelerate systems engineering.

Develops, integrates, tests, debugs, documents, and sustains Java software for a ground-based space-domain-awareness radar. Designs services and microservices using Spring Boot, containers, Kubernetes, CI/CD, REST APIs, databases, and Linux. Applies systems engineering principles across mission execution, system control, and data processing. Requires an active Secret clearance and substantial professional experience, with collaboration across technical teams supporting real-time or mission-critical defense systems.

The Principal Mechanical Engineer will lead a team in conducting structural and vibration analysis, CFD modeling, and collaborate across engineering disciplines for aerospace hardware design and testing.

Lead the architecture and implementation of NVIDIA’s large-scale data retrieval platform for foundation-model training. Build web crawling, source discovery, indexing, scheduling, fetching, ingestion, provenance, and policy-enforcement systems. Ensure production reliability, scalability, observability, and cost efficiency while supporting open-web, licensed, partner, code, STEM, and multimodal data. Partner across engineering, research, product, legal, privacy, and governance teams, mentor engineers, and set technical direction.

Leads program-level systems engineering for advanced space and mission systems across architecture, requirements, integration, verification, and validation. Serves as technical authority, manages system-level budgets and technical baselines, leads multidisciplinary engineering teams, coordinates stakeholders and suppliers, and owns major technical gate reviews. Uses MBSE and requirements tools to ensure traceability and verification throughout the program lifecycle. Requires extensive customer engagement, technical leadership, presentations, and mentoring.

Lead program-level systems engineering for advanced space and mission systems. Define mission objectives, system architecture, requirements baselines, technical budgets, trade studies, interfaces, and verification activities. Coordinate multidisciplinary teams, customers, suppliers, PMO, and engineering organizations through design, integration, validation, and operations. Lead major technical reviews, manage requirements traceability using MBSE, support risk processes, present to senior audiences, and mentor systems engineers.

Leads systems engineering for advanced space missions, owning technical requirements, architecture, budgets, trade studies, integration, verification, validation, and major design reviews. Supervises multidisciplinary systems engineers, coordinates with customers, program management, suppliers, and technical leadership, and applies MBSE for architecture and requirements traceability. The role also mentors engineers, supports risk management, manages technical baselines, and presents to senior stakeholders. It requires on-site work five days per week and an active TS/SCI clearance with ability to obtain a polygraph.

Leads systems engineering for space-based missions across architecture, requirements, integration, verification, and validation. Supervises systems engineers, manages technical baselines and budgets, coordinates trade studies and gate reviews, and interfaces with customers, program management, suppliers, and engineering teams. Uses MBSE and requirements tools to ensure traceability and verification. The role also mentors engineers, supports risk management, and presents technical information to senior stakeholders. Requires on-site work five days per week and an active TS/SCI clearance.

Develop and deliver spacecraft propulsion systems, focusing on assembly, integration, and testing of pressurized fluid systems. Responsibilities include creating and executing test procedures, developing integration plans, troubleshooting spaceflight hardware, managing resources and ground support equipment, and supporting launch and commissioning campaigns. The role requires multidisciplinary engineering, propulsion system analysis, build, test, and support experience in a predominantly on-site environment.

Leads the Trek spacecraft product line as Chief Engineer, owning the technical baseline, architecture, requirements, verification, integration, testing, risk management, and technical roadmaps. Coordinates multidisciplinary teams, suppliers, customers, and company programs while managing cost and schedule baselines. Leads design and readiness reviews, supports proposals and IRAD initiatives, and coaches systems engineers throughout the spacecraft lifecycle.

Supports RF payload and signal-chain design, requirements development, margin management, system performance analysis, interface documentation, verification planning, and hardware/software test activities. Collaborates across optical, thermal, calibration, focal-plane, and AI&T disciplines throughout the program lifecycle. The role supports technical reviews, proposals, customer presentations, and payload sell-off activities while requiring extensive RF or electro-optical systems experience and an active Top Secret/SCI clearance.

Support RF payload and signal-chain design, requirements development, margin management, performance analysis, interface documentation, verification planning, and lifecycle reviews. Collaborate across calibration, optical, thermal, focal-plane, and AI&T disciplines. Lead hardware and software development, testing, and evaluation while supporting system requirements, design, readiness, and sell-off reviews. The role requires on-site work, technical presentations, proposal support, and collaboration across defense and space programs.

Supports RF payload system and box/board-level design, signal-chain analysis, requirements decomposition, margin management, performance verification, interface documentation, and lifecycle reviews. Collaborates across calibration, optical, thermal, focal-plane, and integration teams; leads hardware and software testing; develops technical analyses, error trees, and performance measures; and supports proposals, schedules, and customer presentations. The role requires on-site work and an active Top Secret/SCI clearance with polygraph eligibility.

Supports RF payload and signal-chain design, requirements development, systems engineering, margin management, performance analysis, interface documentation, verification, and hardware/software test activities. Collaborates across calibration, optical, thermal, focal-plane, and AI&T disciplines while supporting program reviews and payload sell-off. The role requires on-site work five days per week and involves classified defense and space systems.