Top Backend Engineer Jobs in Denver & Boulder, CO

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.

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.

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

The role involves leading the technical design and implementation of complex financial products, ensuring a low-latency trading experience, defining technical strategy, and mentoring junior engineers. Strong collaboration across teams is essential.

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

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

As a Senior Back-End Engineer, you'll develop and maintain our US Sports platform, coaching junior engineers and collaborating with stakeholders to ensure system reliability and scalability.

The Staff Software Engineer will lead the design and development of scalable access control solutions for Identity and Access Management. Responsibilities include architecting authorization systems and mentoring engineers, ensuring high-quality, high-scale platform solutions.

As a Senior Backend Engineer, you'll develop and enhance authentication strategies, improve access management, and ensure security for GitLab users, focusing on scalable solutions.

Design and implement financing products, build backend systems, create APIs, and ensure high-quality, tested code for institutional clients at Coinbase.

Lead backend engineering for high-volume, event-driven pipelines that power institutional reporting, billing, tax outputs and statements. Build and scale services in Go, design cloud-native systems, write well-tested code, and collaborate cross-functionally to deliver product and technical roadmaps that support revenue and trust for large institutional clients.

Build and maintain data onboarding pipelines and automation to extract, transform, validate, and import retailer data from legacy POS systems. Optimize performance, ensure data quality, and collaborate with onboarding, product, and operations teams to scale retailer onboarding.

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.

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, build, test, and release scalable, concurrent backend systems and REST APIs for fund movements. Mentor junior engineers, lead complex projects, and ensure long-term stability and correctness at scale.

As a Senior Software Engineer (Backend), you will develop backend services for music technology, enhance system performance, and mentor junior developers.

The Software Engineer will develop AI infrastructure and automation solutions, manage project execution, write high-quality code, and enhance system operations while fostering collaboration within the team.

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

Design and implement AI systems for customer support and compliance, architect distributed systems, mentor team members, and develop foundational APIs.

The role involves designing, developing, and delivering high-quality software solutions, conducting code reviews, and debugging applications, with a focus on SaaS-based development and software quality.