Top Principal Software Engineer Jobs in Denver & Boulder, CO

This role involves leading technical projects across multiple teams, designing scalable systems, collaborating with cross-functional teams, and mentoring engineers, focusing on payroll and tax systems at Gusto.

Design, develop, and test software applications for space systems, providing technical leadership and mentoring while ensuring code quality and scalability.

The Principal Software Engineer will enhance customer experiences and lead software solutions, collaborating across teams to drive innovative technology in a fast-paced environment. Responsibilities include coding, mentoring, optimizing data pipelines, and defining development standards.

Lead the architectural design and development of a new consumer credit product, focusing on backend systems, distributed services, and integrating AI tools. Mentor team members and influence product direction through engineering insights.

Design and develop software applications for space systems, providing technical leadership and mentoring while ensuring high availability and security practices.

The Principal Engineer will lead technical direction across multiple teams, design architecture for financial systems, mentor engineers, and drive multi-year transformations in the Money Group.

The Principal Software Engineer at Dropbox leads technical strategy and execution on critical software systems, focusing on AI integration and product development across teams. The role requires deep technical expertise and a collaborative approach to shaping company objectives and long-term strategies.

As a Senior Principal Engineer, you'll define and drive the technical strategy for customer experience platforms, lead architectural decisions, and mentor engineering teams to enhance customer and agent experiences.

The Principal Software Engineer leads the development of high-performance React applications, mentors teams, and drives engineering excellence through innovative practices and technical direction.

The Principal Software Engineer designs, develops, and tests software for space systems. Responsibilities include coding, technical leadership, system architecture, and mentoring, while adhering to best practices and software development methodologies.

As Principal Software Engineer, lead the design and implementation of the Identity Platform, focusing on security, scalability, and user experience. Collaborate with stakeholders to define technical direction and innovate within the team.

Lead and manage a software engineering team while spending ~75% time hands-on developing high-performance C/C++ embedded and SoC software. Design and optimize rendering, simulation frameworks, GUIs, and real-time systems compliant with DO-178C and DoD cybersecurity/RMF. Own integration, testing, CI/CD, program reviews, and customer-facing technical coordination for military AR training systems.

As a Principal Software Engineer, you will write scalable SaaS solutions, optimize performance, and address technical debt while collaborating across teams.

The Sr. Principal Software Engineer designs, develops, and tests software for space technologies, leading a team, making design decisions, and ensuring project success while complying with security requirements.

The role involves building and optimizing a machine learning and simulation platform, supporting MLOps, model deployment, and infrastructure modernization, while mentoring engineers.

The Principal Software Engineer will define technical roadmaps, guide system architecture, mentor leaders, and drive product direction in Capital Supply operations.

The Principal Software Engineer leads software solution development, directs the software engineering life cycle, and guides architecture for PNC's Tempus Technologies. Responsibilities include automation, security oversight, and collaboration across teams to enhance systems and product offerings.

As a Software Engineer Principal (UI), you'll design and code software solutions, provide technical guidance, and lead problem-solving efforts to meet complex business needs.

Lead the integration and testing of payload hardware, develop and document software systems, and mentor junior engineers in a collaborative team environment.

The Principal Software Engineer provides technical leadership for enterprise applications focusing on ERP and core systems, resolving complex issues, and enhancing solutions while ensuring best practices in full-stack development.

As a Principal Software Engineer, you will architect and implement data solutions, develop scalable applications, and ensure high-performance code delivery.

The Principal Software Engineer will provide architectural guidance, mentor developers, manage risks, and ensure high-quality software production across various teams and product areas.

Lead the architecture of backend services and distributed systems for OpenAI's B2B engineering team, ensuring scalable, reliable, and secure products.

As Principal Software Engineer, you'll define and drive Airbnb's performance strategy, lead performance profiling development, mentor engineers, and connect performance outcomes to business objectives.

The Principal Software Engineer at Motion will make key technical decisions, implement large software projects, take ownership of projects, and collaborate with other engineers to enhance product value.