Top Principal Engineer Jobs in Denver & Boulder, CO

Lead architecture, design, and delivery of PET product features; write production full‑stack code; champion testing, observability, CI/CD and operational readiness; mentor engineers and collaborate with product to shape technical roadmap.

Lead electrical architecture, design, test, integration, and manufacturing for next-generation AR airborne systems. Derive subsystem requirements, perform trade studies, prototype and verify designs, produce documentation, mentor the electrical team, and ensure compliance with military environmental and EMI/EMC standards.

Lead technical vision for AI and platform infrastructure across the company. Solve ambiguous, high-stakes problems end-to-end, set architecture and paved-road standards, guide AI provider selection, ensure compliance for government environments, mentor engineers, and drive adoption of best practices in DevOps, CI/CD, developer experience, and compute infrastructure.

Design and implement FPGA-based digital systems for defense applications, integrate digital IP and SoC components, develop test fixtures and plans, and collaborate across engineering teams on R&D and production programs. Maintain on-site presence and support system-level requirements flow-down.

Lead architecture and implementation of complex FPGA SoC designs for space/high-reliability systems. Develop VHDL/Verilog/SystemVerilog IP, integrate digital IP, use Xilinx/Mentor toolchains, provide technical leadership, and support R&D and production programs while collaborating across teams.

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 design and delivery of flight-critical power electronics for the X-BAT aircraft, including inverters, DC-DC converters, and battery management. Own full hardware development cycle, drive PCB layout, harden designs for harsh environments, mentor engineers, lead reviews, and manage program timelines through production.

Lead architecture, development, and validation of end-to-end aircraft fuel systems. Drive cross-functional integration, system-level modeling (CFD), verification, supplier qualification, ground and flight test support, anomaly root-cause analysis, and mentor engineering teams while contributing to long-term fuel-system technology roadmaps.

Lead architecture and implementation of a high-performance OLAP query engine and semantic layer: design a JSON-based DSL and compiler, generate optimized SQL for columnar databases, build distributed caching, tune JVM and low-level performance, and provide technical leadership and documentation.

Build, operate, and secure cloud-native and edge infrastructure including Kubernetes, artifact pipelines, application streaming, and air-gapped appliances. Partner with product, GRC, and mission owners to design, deploy, and harden systems, remediate vulnerabilities, support audits (IL5/IL6/JWICS), and ensure trusted artifact delivery across environments.

Lead a technical team to design, deploy, and manage multi-cluster Red Hat OpenShift platforms across virtual, bare-metal, and hybrid environments. Ensure high availability, security compliance (FIPS, STIGs, CMMC), GitOps automation, CI/CD pipelines, observability, authentication integrations, and audit/RMF readiness while supporting escalations and collaborating with security and architecture stakeholders.

Senior, client-facing principal to grow New Jersey land remediation practice. Responsibilities include business development, leading complex site investigation/remediation projects, technical oversight and review, NJDEP regulatory coordination with LSRP, project financial and staff management, mentoring staff, and promoting practice growth and technical excellence.

The Principal Engineer will lead AI-driven productivity initiatives, develop a strategy for integrating AI in engineering workflows, and improve collaboration across teams. Responsibilities include executing projects, ensuring code quality, and setting success metrics.

Lead the design of Xsolla's identity platform, develop Golang microservices for user management, and implement security protocols for compliance.

Lead architecture and implement large cross-cutting initiatives on a SaaS grantmaking platform. Produce high-quality full‑stack code (Rails/React/Node), mentor engineers, drive SDLC best practices, and champion AI-assisted development while collaborating with product, infra, and QA teams.

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

The role involves creating RF payload calibration methods, evaluating performance requirements, managing calibration models, and collaborating across engineering disciplines in the RF sensing mission area.

Design, characterize, and test low-noise focal plane electronics for a range of detector technologies. Develop experiments, test plans, troubleshoot hardware, perform system modeling and requirements work using DOORS/MBSE, and collaborate with multidisciplinary teams to deliver flight and engineering hardware.

The role involves leading FPGA verification for complex SoC designs, applying innovative techniques to develop electronic systems in a collaborative environment focused on space payloads.

Design and implement high-tech electronic systems focusing on FPGA and digital IP integration for defense applications, collaborating in R&D and production programs.

Lead systems engineering for advanced RF, radar, communications, and sensing systems across the lifecycle: define and manage requirements, develop architectures, perform trade studies and performance analyses, define interfaces, support integration/verification/validation, collaborate with software/FPGA/hardware teams, produce technical documentation, and participate in technical reviews using systems and digital engineering tools.

The role involves verifying FPGA designs, creating test benches, developing verification plans, and collaborating with engineers on various advanced electronic systems.

The Engineer Principal will develop RF payload calibration approaches, leading teams to meet performance requirements while managing calibration processes and collaborating across engineering disciplines.

The Principal Electrical Design Engineer is responsible for designing and developing electronic systems, conducting simulations, and collaborating cross-functionally to meet program requirements. They will also perform testing and analyze designs for reliability and efficiency.

The Principal Consulting Engineer will design, deploy, and optimize VMware Cloud Foundation automation solutions, ensuring they meet customer requirements while leading engagements and providing technical expertise.