Top Backend Engineer Jobs in Denver & Boulder, CO

Lead architecture and implementation of high-throughput, distributed backend systems for agentic AI and MCP servers. Drive cross-team platform strategy, mentor engineers, own complex multi-quarter projects, and ensure reliability, performance, and operational excellence across microservices and event-driven systems.

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.

The Senior GIS Back-End Engineer will design, build, and maintain geospatial infrastructure, manage spatial data, and support scalable GIS solutions. Responsibilities include troubleshooting Esri systems and collaborating on new analytic capabilities.

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

As a Backend Engineer, you will design and implement core infrastructure for Vannevar's platform, ensuring standards for data processing, security compliance, and performance. You will collaborate with various teams to enhance shared infrastructure and lead technical initiatives.

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.

Design, build, and operate backend systems that serve millions globally, improve cloud infrastructure, and collaborate on new products while ensuring reliability and performance. Also involved in customer interactions to enhance service quality.

The Backend Engineer II will design, build, test, and maintain backend services for Openly's insurance platform, collaborating on API creation and integration with external services while contributing to architectural decisions.

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

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

As a Sr. Software Engineer at Zapier, you'll build and scale robust backend systems for their automation platform, collaborating on various impactful projects, improving user workflows, and ensuring smooth execution of automations.

The role involves leading engineering efforts in backend and full-stack development, working with enterprise customers, and building scalable systems for automation and asset management, while applying AI tool advancements.

As a Senior Backend Engineer at Zapier, you'll design and implement scalable APIs, collaborate on architecture, and integrate AI tools to enhance automation.

The Senior Backend Software Engineer will build AI-driven products using Node.js, collaborating with various teams to ensure high-quality code and feature ownership.

The Staff Product Backend Software Engineer will architect technical solutions, shape product direction, mentor engineers, and influence engineering standards while participating in on-call rotations.

The role involves leading technical strategy, ensuring operational stability, fostering quality culture, and mentoring team members in backend system design and development.

As a Senior Software Engineer, you'll lead the development of secure, high-availability backend systems, support your team in delivery, and drive process improvements.

Design, develop, and scale backend services and infrastructure for a high-performance, data-intensive SaaS platform. Solve complex infrastructure issues, improve CI/CD and DevOps tooling, perform post-release support and post-mortems, drive architectural decisions, and recommend tools and best practices to enhance reliability and observability.

Design, build, and scale backend infrastructure and services for a high-performance SaaS platform. Drive architecture decisions, improve DevOps and CI/CD automation, provide post-release support and post-mortems, and recommend tools and practices to enhance observability, reliability, and scalability.

Lead a team of 15-20 engineers, shaping technical direction for consumer-facing product solutions while actively coding and mentoring to drive high-quality outcomes.

Design, build, and operate backend services focusing on performance, scalability, reliability, and observability. Diagnose production issues, optimize data models and APIs, contribute to architecture and operational strategy, and collaborate across product, frontend, and DevOps to deliver mission-critical systems.

Architect and develop distributed systems, define strategic roadmaps, manage project priorities, mentor team members, and write high-quality code.

As a Staff Software Engineer, you'll architect and develop a next-generation book and records system, manage projects, mentor team members, and work collaboratively on technical vision implementation.

The Backend Software Engineer will develop data ingestion pipelines, implement observability tools, and provide technical support while improving team collaboration.

Lead a team of engineers to deliver customer and business outcomes, shape technical direction, and architect foundational systems for reliability at scale.