Top Backend Engineer Jobs in Denver & Boulder, CO

As a Back-End Engineer, you will design, implement, and maintain core infrastructure while ensuring performance, scalability, and reliability in a fintech environment.

Design and implement secure, robust, and scalable backend services for speech processing. Debug complex system issues and partner with Product teams to drive feature development.

As an Intermediate Backend Engineer, you'll design and develop security management capabilities, build scalable services and APIs, and collaborate with teams to enhance GitLab's security platform.

Develop and support web services for digital life insurance enrollment, collaborating closely across teams to enhance platform capabilities. Responsible for the quality and maintainability of services, utilizing Python and Java, among other technologies.

Lead the technical strategy for GitLab Secrets Manager, focusing on secure, multi-tenant secrets management architecture, integration with OpenBao, and collaboration across teams.

You will tackle AI challenges, develop scalable software and collaborate with teams to enhance healthcare navigation using AI solutions.

The Senior Backend Engineer II will design, build, and maintain backend services for financial workflows, collaborating with product and engineering teams to enhance system reliability and performance.

As a Senior Backend Engineer, you will build APIs and backend systems for an observability platform, focusing on performance, security, and delivering customer results. You will collaborate with product teams and apply best engineering practices.

As a Senior Backend Engineer, you'll collaborate with a cross-functional team to build features for a Digital Asset Manager, tackle complex technical issues, and apply web best practices in a rapidly evolving environment.

Lead design, build, and scale real-time streaming infrastructure and data pipelines; collaborate with product and analytics; ensure operational availability and monitoring; set code and design standards; mentor engineers and drive delivery of quarterly goals.

Design and implement secure, scalable backend services for voice agents, integrate AI models and telephony, improve inference, debug concurrent systems, and collaborate with Product to deliver features end-to-end.

Lead the design and implementation of backend services for data cataloging and ML training systems, focusing on performance and scalability.

Design and implement AI systems for customer support and compliance, architect solutions, mentor team members, and manage project deliverables.

Build enterprise-grade authentication, authorization, and identity features across the full stack. Design and implement RBAC, provisioning (SCIM), SSO/OAuth integrations, secure public APIs, and admin workflows for auditing and compliance. Own end-to-end product changes, collaborate on architecture, and mentor engineers to deliver scalable, reliable systems for enterprise customers.

Responsible for server-side ad insertion service, developing REST APIs, and managing distributed caches. Engage in agile teams with CI/CD practices.

The Senior Software Engineer will develop scalable backend applications, enhance DevOps practices, drive architectural solutions, and improve system infrastructure in a collaborative environment.

The Senior Back-End Engineer will develop, maintain, and evolve the US Sports platform, focusing on high throughput systems and mentoring junior engineers in an agile environment.

The Senior Backend Engineer will design, build, and maintain backend services and APIs for Openly's insurance platform, collaborating with various teams.

Develop and maintain software applications, collaborate in agile teams, mentor junior engineers, and enhance digital experiences using modern technologies.

As a Senior Backend Engineer, you'll design and build distributed systems for the Retail Cash team, ensuring performance, accuracy, and availability of cash operations.

As a Senior Software Engineer on the PMI team, you'll design and develop backend systems, collaborate on API lifecycle, support team operations, and engage in team growth activities.

Develop core backend services using Golang and PostgreSQL. Engage in peer code reviews, ensure software security, and advocate for CI/CD practices.

The Staff Backend Product Software Engineer will lead a team in delivering technical solutions, collaborating on product management, and mentor engineers while maintaining high standards in a reliable, scalable environment.

Develop and implement AI solutions and backend services, mentor colleagues, and enhance systems reliability while addressing complex challenges in crypto compliance and customer support.

The Backend Engineer will develop infrastructure for product integration, create documentation for team training, and influence technology decisions.