Top Backend Engineer Jobs in Denver & Boulder, CO

As a Staff Backend Engineer, you'll design and operate backend services, lead technical initiatives, ensure reliability, and mentor team members in a remote-first setup.

The Marketing Backend Developer will build and maintain backend services and APIs for marketing operations, ensuring reliable data flow and system integrations, with a focus on performance and scalability.

Senior Backend Engineer responsible for building, deploying, and monitoring backend applications. Collaborate with product and cross-functional teams to design/version APIs, build event-driven/asynchronous systems, improve performance and reliability, and drive CI/CD and observability best practices. Ship high-quality, well-tested features and support platform scalability and maintainability.

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

Design, build, and operate backend systems for prediction markets, including order management, trade matching, settlement, and market resolution. Architect distributed, low-latency systems with strict financial correctness, lead multi-quarter technical projects, mentor engineers, and collaborate with Product, Compliance, and Risk to meet regulatory requirements.

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.

Design, build, and own backend services for prediction markets across market lifecycle: creation, trading, oracle resolution, settlement, and payouts. Build low-latency, high-throughput microservices and event-driven systems, drive reliability via SLOs and observability, lead incident response, set technical standards, and mentor engineers while partnering cross-functionally to deliver product and compliance-aligned roadmaps.

As a Senior Software Engineer, you will enhance data pipelines, integrate with EHR systems, and mentor fellow engineers while ensuring scalable and reliable solutions for health technology.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

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

Design and build a centralized reliability platform and developer-facing APIs. Implement AI agents for incident triage, log/trace summarization, and recommended actions. Own projects end-to-end and collaborate with product, infra, data, and SRE teams.

Design, build, and operate resilient backend services for dynamic video packaging, manifest generation (HLS/MPEG-DASH), DRM integration, and high-performance server-side ad insertion. Own production reliability, incident response, observability, and performance optimization while integrating AI-driven diagnostics and automation to scale streaming delivery for millions of concurrent viewers.

Develop, maintain, and evolve a high-throughput, low-latency US sports trading platform. Build scalable microservices on GCP with Kubernetes using Go or Rust. Ensure resilience during peak events, contribute to architecture, mentor junior engineers, collaborate with stakeholders, and adopt CI/CD, IaaS, concurrency debugging, and in-house AI technologies to deliver reliable global services.

As a Staff Engineer for Revenue, you'll shape technical vision and architecture for billing and pricing systems, ensuring correctness while enhancing cross-team collaboration.

The Senior Software Engineer will design and develop scalable applications, enhance DevOps practices, and drive continuous improvement within infrastructure and systems.

As a Software Engineer, you'll design, build, and maintain IAM solutions, ensuring security and reliability while working with cloud computing standards.

Design, build, and maintain backend services and APIs in Go; optimize PostgreSQL schemas and queries; create reliable integrations and orchestration layers; implement observability and security best practices; collaborate across engineering and product to improve developer experience and operate a SaaS platform.

Design, build, and maintain low-latency, high-availability backend services and REST APIs. Troubleshoot production issues, improve performance, write technical specs, participate in on-call rotations, and collaborate on the bot runtime platform.

Seeking backend engineers to build and maintain APIs for payment processing, collaborating with cross-functional teams and mentoring peers.

Design, build, and maintain backend services and APIs using Ruby on Rails. Improve performance, scalability, reliability, and write well-tested production code. Collaborate with Product, Frontend, Data Engineering, and QA teams.

Design, develop, and optimize high-performance Java backend systems. Contribute to architecture, implement core modules, troubleshoot production issues, perform code reviews, and improve scalability, availability, and reliability of distributed financial or blockchain systems.

Lead architecture and technical roadmap for core backend services, design scalable APIs and data pipelines, debug and optimize distributed systems, mentor engineers, drive cross-team initiatives, and improve performance, reliability, and maintainability while remaining hands-on with code.

Design, develop, and maintain scalable Java backend services and RESTful APIs. Collaborate with frontend, product, and stakeholders; write clean, tested code; troubleshoot and resolve issues; participate in code reviews; and improve systems, particularly for large-scale distributed environments.

Design and build backend solutions in the NAV domain using Java/J2EE and Spring. Develop APIs, web services, database schemas, PL/SQL and transactional SQL in DB2/Oracle. Collaborate with tech leads, architects, and DevOps to deliver quality features, participate in code reviews, testing, and CI/CD pipelines.

Design, build, and lead backend Java/J2EE and microservices solutions. Drive API design, cloud containerization (Docker/Kubernetes), CI/CD, database schema and PL/SQL development (DB2/Oracle), code quality, technical mentoring, and cross-team delivery for asset management initiatives.