Top Remote Senior Full-Stack Engineer Jobs in Denver & Boulder, CO

Design and build scalable features for MongoDB's Internal Developer Portal using Backstage. Collaborate with teams to enhance developer workflows and internal tools.

The Senior Full Stack Engineer will develop scalable applications, manage both front-end and back-end tasks, and enhance platform engineering practices. Responsibilities include API development, database design, and technical documentation.

The Senior Full-Stack Developer will design, build, and maintain AIO Logic's cloud-based AXIS platform, utilizing React and Java/Spring Boot to deliver software solutions for complex financial workflows, collaborating with cross-functional teams, and mentoring junior developers.

Senior Full-Stack Software Engineer position focusing on building, shipping features, and improving code quality using React, TypeScript, and Ruby on Rails.

Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.

The Senior Full Stack Developer will build end-to-end solutions, collaborate in a remote environment, and write technical documentation. The role requires expertise in Ruby on Rails and various programming paradigms.

Lead the development of Coperniq's platform by designing, developing, and maintaining scalable full-stack solutions while collaborating with teams and mentoring juniors.

The Senior Full Stack Engineer will design and develop user-friendly experiences, lead product enhancements, mentor junior engineers, and participate in on-call rotations to ensure service reliability.

The role involves owning the product workflow, building user-facing features, maintaining systems, and collaborating with cross-functional teams. Strong React and Typescript skills are essential.

The role involves designing and implementing server-side services, building data pipelines, and collaborating with frontend teams. Requires proficiency in Kotlin and/or Java, especially with Spring WebFlux, while improving system throughput and reliability.

This role involves delivering high-quality software, collaborating with teams, leading code reviews, and contributing to architectural decisions for scalable systems.

As a Senior Full-Stack Engineer, you will build features across React/TypeScript and Python/Django, shape product outcomes, and collaborate with cross-functional teams to ensure user satisfaction and engineering quality.

Architect, design, build, test, and deploy highly available real-time systems. Participate across the SDLC, implement automated testing and CI/CD, maintain documentation, troubleshoot and enhance existing software, and collaborate in an Agile/Scrum team environment.

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 Full-Stack Engineer, you'll develop features for Circle's CRM platform, collaborating on both front-end and back-end tasks and participating in the entire development lifecycle.

Design and maintain full-stack features for real-time video, events, chat, and notifications, collaborating with teams to improve performance and reliability.

The Senior Full Stack Software Engineer at Dropbox will design and develop user-friendly experiences, manage projects end-to-end, and collaborate across teams while leading initiatives and delivering AI-enabled product enhancements.

Design, build, and run full-stack growth experiments end-to-end to improve acquisition, activation, engagement, and monetization. Collaborate with product, design, and analysts, analyze results, iterate quickly, and contribute to experimentation platform and growth infrastructure.

Lead modernization of a legacy .NET/SQL Server payment-integrity platform: migrate services to modern .NET, design reliable RESTful APIs, improve database performance, implement security and observability, and use AI agents to accelerate refactors and testing while partnering with product, UX, DevOps, and QA to ship high-quality features.

Design and implement core functionalities for a large-scale web application focusing on architectural planning and full-stack features development. Collaborate with senior engineers and ensure clear communication while breaking work into manageable pieces.

As a Senior Full Stack Engineer, you will develop scalable software solutions, mentor junior engineers, and improve system performance by integrating various technologies.

Build full-stack, user-facing features alongside ML engineers using TypeScript, Node.js, GraphQL, and Postgres. Implement and integrate AI/LLM/ML tools, own features end-to-end from design to production, maintain scalability/reliability/observability, participate in code reviews and design discussions, and contribute to product ideation and RFCs.

Lead design, build, and scale GridUnity's cloud SaaS platform. Own end-to-end features, mentor engineers, drive architecture, improve scalability/reliability/security, collaborate with product teams, and introduce engineering best practices and tooling.

Design, build, and maintain resilient full-stack services for distributed financial SaaS systems. Lead end-to-end projects, optimize performance, ensure security and observability, mentor teams, and reduce technical debt.

Design, build, deploy, and optimize scalable full-stack applications integrating databases, APIs, and AI/LLM workflows. Lead architecture, CI/CD (ArgoCD, GitLab), Airflow pipelines, and collaborate cross-functionally to deliver production-grade fintech solutions.