Top Engineering Jobs in Denver & Boulder, CO

Maintain and improve GameChanger's backend API server and SDK. Implement API/SDK changes, improve developer ergonomics, optimize performance and scalability, design critical systems, document and mentor teammates, and participate in on-call rotation.

As a Principal Engineer, you'll architect and implement security features for storage products, focusing on cryptography and cybersecurity across development lifecycles.

Lead enterprise B2B integration projects for strategic customers using APIs, webhooks, connectors, cloud services, and scalable integration architectures. Gather requirements, design technical solutions, develop and review code, document best practices, troubleshoot implementations, and support customer deployments. Collaborate with product, sales, systems engineering, and developer ecosystem teams while managing complex projects and multiple stakeholders. Apply Python, cloud platforms, LLM-based tools, agentic workflows, databases, and modern Agile practices.

Build and own full-stack services and APIs enabling businesses to offer and manage 401(k) plans. Design scalable features, evolve system architecture, establish engineering best practices, collaborate with product, design, compliance, and operations, debug production issues, and improve reliability, observability, and operational tooling. The role requires end-to-end system ownership, production support, and cross-team technical influence.

As a Senior Software Engineer, you'll implement collaboration features, support team architecture, work across tech stacks, and improve developer experience.

The Staff Software Engineer will lead full-stack initiatives, improve system quality, drive technical direction, and mentor peers in a collaborative environment.

Join MongoDB's Query Execution team to improve the database's core execution engine, build high-performance query features, and mentor team members. You will drive roadmap initiatives and ensure production-ready code for complex analytical workloads.

The Deputy Chief Engineer will lead technical execution for a missile defense program, ensuring integrity in structural analysis and promoting cross-functional teamwork.

As a Principal Flight Software Engineer, you will lead the architecture and development of flight software for space missions, ensuring safety and reliability while collaborating on technical decisions and standards.

Seek a creative Thermal Engineer to join a multi-disciplinary team to develop thermal systems for spacecraft, performing analyses, designs, and testing.

As a GNC Engineer III, you'll manage the development of systems for spacecraft, involving design, testing, algorithm implementation, and cross-functional collaboration. You'll work on GNC software and hardware integration while supporting operational missions.

The GNC Engineer will develop spacecraft guidance, navigation, and control systems, conduct simulations, lead cross-functional teams, and mentor junior engineers.

Lead technical execution on missile defense programs, overseeing engineering performance, risk management, and system integration across multi-disciplinary teams.

The Staff GNC Engineer will develop spacecraft GNC systems, design algorithms, and lead integration efforts while mentoring junior engineers and collaborating cross-functionally.

The GNC Engineer II will develop GNC systems, algorithms, and software for spacecraft, focusing on testing, validation, and integration with other systems.

Oversee development of spacecraft GNC systems, from architecture to flight operations, design algorithms, and mentor junior engineers.

As a Staff Flight Software Engineer, you will assist in the software development cycle, integrate GNC algorithms, maintain command telemetry databases, and develop reusable driver libraries for flight hardware.

The Senior Software Engineer will lead projects for the Forms platform, designing and building features across web, mobile, and backend systems while mentoring other engineers and improving platform scalability and reliability.

Lead design and evolution of SentiLink's data platform for fraud detection. Architect scalable batch and streaming pipelines, improve reliability, performance, and observability, set engineering standards, mentor engineers, drive cross-team technical initiatives, participate in production support/on-call, and evaluate build-vs-buy and emerging technologies.

Own a feature area end-to-end: author clear specs, define acceptance criteria and UAT, manage AI-assisted codegen, ensure production health, mentor engineers, and deliver verified production software in a Rails-focused full-stack environment.

Design, build, and operate backend Go services and smart contracts that mint, burn, bridge, and reconcile wrapped assets across multiple chains. Own end-to-end delivery from smart contract deployment through API design, SLOs, and production rollout. Drive asset migration pipeline improvements, run on-call operations, build observability and runbooks, and mentor junior engineers.

Design and deliver blockchain network infrastructure and platform APIs, lead multi-quarter initiatives (chain integrations, re-architecture, data migrations), define APIs/SLOs/observability and on-call ownership, ship SDKs and platform primitives, establish data contracts, and simplify cross-chain operations to enable analytics, ML, and data engineering teams.

Implement Imprivata software for customers: assess environments, install and test products, integrate with enterprise technologies, produce technical collateral and documentation, train customers and partners, and support projects through deployment. Significant domestic travel required.

Design and develop mechanical hardware for antenna and RF electronic systems from concept through detail design. Perform CAD modeling, design analysis, interface definition, risk mitigation, and support manufacturing, test, and sustaining engineering. Collaborate across integrated program teams and may manage subcontracts and production requirements.

The RF Systems Analyst will support RF payload system design, analyze signal chain performance, and perform systems engineering tasks, collaborating across disciplines to ensure compliance with requirements and support program reviews.