Top Engineering Jobs in Denver & Boulder, CO

Design and scale core backend APIs and platform primitives for MCP, enabling AI agents to act across Zapier integrations. Build high-availability orchestration, logging, and interfaces between LLM clients and Zapier while partnering with product, design, and cross-functional teams to prioritize performance, security, and developer clarity.

Develop, maintain, and evolve sports trading desktop applications and backend services using .NET and SQL Server. Deliver scalable, low-latency solutions, support production systems, mentor team members, and contribute to architecture and estimates.

Lead antenna-focused integration and test for phased-array radar systems, directing RF/DREX integration, defining and executing test plans, verifying antenna and radar performance, overseeing chamber and field measurements, troubleshooting RF/digital anomalies, correlating measurements with EM models, ensuring MIL-STD compliance, and mentoring junior engineers while briefing government stakeholders.

Design, analyze, and test guidance, navigation, and control (GN&C) systems across program lifecycle. Refine requirements, perform attitude/orbit/trajectory budgets and stability analyses, support HW/SW integration and testing, document designs, provide presentations, and deliver on-orbit technical support.

The role involves thermal design and analysis for aerospace systems, modeling, test development, team leadership, and effective communication of technical aspects.

Lead thermal design and analysis for aerospace systems, develop thermal loads, support testing, and manage small engineering teams. Responsible for communication and documentation of project aspects while ensuring effective teamwork.

Lead the Command & Data Handling subsystem and spacecraft networking efforts: define requirements and architecture, implement and verify hardware and interfaces, produce V&V plans and technical documentation, coordinate integration and test, and present results to stakeholders.

Lead thermal design and analysis for spacecraft systems, modeling with Thermal Desktop, conducting tests, and managing small engineering teams for project delivery.

Design and develop RF and wireless systems for Spectacles, collaborating with teams on schematics, PCB layouts, RF validation, and electrical prototypes.

The Electrical Signal Integrity Engineer will perform simulations, design circuits, debug hardware issues, validate electrical designs, and collaborate with cross-functional teams.

Design and build partner-facing APIs and the Powered by Zapier platform, improve developer tools and docs, ensure scalability and reliability, collaborate cross-functionally, lead technical initiatives, and mentor teammates to support partner integration and embedded automation.

Zapier seeks an Applied AI Engineer to develop AI-driven automation tools. Responsibilities include working with large language models and improving AI performance, scalability, and reliability.

As a Software Engineer on the AI Products Team, you will develop new features and improve LLM model results while engaging with customers and shaping team culture.

The Software Engineer will develop voice AI features, enhance LLM model performance, build infrastructure, and collaborate with teams and customers to improve the voice AI platform.

Lead the frontend platform's evolution, architect complex UIs, mentor engineers, and drive performance and testing excellence while collaborating with cross-functional teams.

Develop core services using Golang and PostgreSQL, resolve feature issues, ensure software quality, and promote CI/CD practices while collaborating with teams.

The Senior Infrastructure Engineer II will design, operate and scale automated provisioning systems at DigitalOcean, ensuring efficient deployment of hardware and responding to provisioning failures.

The Software QA Engineer will test and evaluate software features, create test plans, provide feedback to developers, and support customers.

Looking for a Senior Software Engineer to develop full-stack applications, improve functionality, mentor team members, and influence technical direction.

As a Full-Stack Product Engineer, you'll develop secure document management features, collaborate with teams, and participate in continuous deployment.

Seeking a Full Stack Developer to build and maintain high-performing web applications, integrate with CMS platforms, and collaborate with teams on technical direction and features.

In this role, you'll architect and manage distributed database systems, oversee complex migrations, optimize performance, and mentor engineers, driving operational excellence.

The Software Test Engineer II will ensure the quality of wireless applications through comprehensive testing, automation, and collaboration with global teams.

Develop and maintain software applications on the ServiceNow platform while integrating with cloud technologies. Troubleshoot issues and work with customers on implementations.

Develop and maintain software applications on the ServiceNow platform, perform integrations, troubleshoot issues, and communicate with clients.