Top Senior Software Engineer Jobs in Denver & Boulder, CO

Design, develop, and maintain scalable backend web applications and RESTful APIs using Python/Django. Collaborate with cross-functional teams, ensure code quality and security, manage source control, implement database schemas and optimizations, support deployments and automation with Ansible, troubleshoot production issues, mentor junior engineers, and contribute to documentation and process improvements.

As a Billing & Analytics Software Engineer, you'll design and maintain the billing pipeline, integrate billing systems, and develop customer-facing analytics dashboards to support revenue recognition and operational observability.

Develop and maintain application software: participate in requirements analysis and design, implement code from specifications, follow development processes, create requirements/design/test documentation, and test applications per methodology.

Design and re-architect the Identity systems at Dropbox to support multi-product capabilities, mentor junior engineers, and ensure software excellence.

The role involves designing, implementing, and maintaining web applications, developing APIs, collaborating with stakeholders, and ensuring high system availability and quality.

The Software Engineer will enhance developer experience at Benchling by building production release tooling, improve workflows, and collaborate with teams to scale processes. Responsibilities include developing efficient development tools and championing engineering patterns.

The Software Engineer III will design, develop, and test software for space systems, mentor engineers, and manage complex software systems.

The role involves designing, developing, integrating, and certifying test system software and hardware using LabVIEW, Python, and Ruby for diverse applications, collaborating with various teams and managing project scope and resources.

The role involves leading application performance improvements across multiple platforms, focusing on measurable metrics and driving engineering standards and workflow optimization, using both hands-on coding and strategic influence.

Design and implement CIAM backend services for authentication and authorization. Integrate identity systems, manage secure flows, and automate infrastructure.

Build and maintain web platforms for restaurant discovery, onboarding, and data quality. Collaborate with engineers, PMs, designers, and researchers; work full-stack when needed; ship impactful features; run experiments with guests and restaurants; champion development, deployment, and quality best practices.

Design, develop, test, and architect complex software systems for space and defense applications. Write maintainable code, use Git, participate in code reviews, troubleshoot issues, document processes, stay current with industry trends, and mentor junior engineers while collaborating in Agile teams.

The Software Engineer III will design, develop, and test software for space systems, mentor other engineers, and enhance CI/CD pipelines while ensuring security practices.

The Software Engineer III/Sr role involves designing and testing software for space systems, guiding other engineers, and requires strong programming and problem-solving skills.

Seeking a Software Engineer/Senior Software Engineer to design, develop, and deliver quality backend services and APIs using Go, with emphasis on Kubernetes and cloud services.

Lead a team of HMI developers to design and implement high-performance web-based HMI and visualization components. Build front-end applications and APIs integrating backend services, simulations, and digital twin data. Collaborate with cross-functional teams, prototype features, participate in design/code reviews, testing, documentation, and support deployment and operational testing for defense command-and-control systems.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Design and develop flight software for space systems, mentor engineers, and ensure adherence to software development principles in an Agile environment.

Develop and maintain application software: participate in requirements analysis and design, implement code (C++), follow development processes, produce requirements/design/test documentation, and test applications per methodology.

Build and own Eve's marketing site and GTM engineering stack: integrate and optimize external tools, design AI agents for sales and marketing, implement webhooks and middleware to sync product/CRM data, and create programmatic campaigns and internal tools in partnership with Marketing, Sales, RevOps, and Product to drive growth and automation.

Design, develop, and test complex flight and space systems software. Write maintainable code, perform code reviews, use version control, troubleshoot issues, document configurations, and mentor junior engineers. Participate in SITL/HITL testing and follow software development best practices.

Lead a team to develop user interfaces for mission-critical solutions. Responsibilities include code contributions, guidance, task assignments, and maintaining CI/CD pipelines.

The Senior Software Engineer will design and optimize recommendation algorithms, maintain data pipelines, and improve personalized user experiences using machine learning techniques and backend engineering skills.

Design and develop software solutions enhancing user experience for Governance features, contribute to open-source software, communicate technical designs, and support team quality through reviews.

The role involves building core infrastructure for orchestrating intelligent agents, defining platform primitives, and ensuring systems scale and reliability. Collaboration with internal teams and end-to-end system ownership are essential.