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

Secure Runpod’s customer-facing products, APIs, and internal services through threat modeling, architecture and code reviews, vulnerability remediation, DevSecOps pipelines, application-layer defenses, security training, compliance support, and bug bounty triage. The role combines software development with application security across Python, Go, and JavaScript/TypeScript systems, focusing on secure-by-design practices and automated security controls.

Develop and operate a large-scale internal cloud management platform. Build APIs, UIs, CI/CD pipelines, and developer productivity tools using Go and TypeScript. Maintain Temporal and Argo Workflows pipelines, integrate development tooling, improve SDLC efficiency, support SOC 2 compliance, and collaborate with engineering, security, infrastructure, and SRE teams. Participate in on-call operations and apply AI technologies to improve workflows and decision-making.

The Senior Full-Stack Engineer will manage client relationships, design integration solutions, and ensure seamless delivery and optimization of technical workflows, while leveraging AI for efficiency.

Develop and maintain a full-stack web application and platform for fraud analysis. Build APIs and user interfaces, write automated tests, troubleshoot production issues, collaborate with product, design, data science, infrastructure, and solutions engineering teams, and participate in on-call support. Use React, Golang, Python, PostgreSQL, Docker, and AWS technologies to deliver reliable products and meet service-level requirements.

Develop and maintain a fraud-analysis web application and platform. Build APIs and user interfaces, write automated tests, troubleshoot production issues, collaborate with product and cross-functional teams, analyze product metrics, and support SLA compliance through production on-call rotation.

Build and ship custom full-stack programs for AI labs and product teams, including capture flows, task logic, data pipelines, validation, redaction, provenance, and delivery across web, mobile, and backend systems. Partner directly with technical customers to scope ambiguous requirements, determine what to reuse or build, ship production code, establish data quality processes, and turn repeatable custom solutions into core platform capabilities.

Develop and operate CrowdStrike’s internal cloud management platform and mission-critical CI/CD pipelines. Build APIs and UIs using Go and TypeScript, improve developer productivity, integrate tooling, maintain cloud-native infrastructure, and support secure, highly available software delivery systems. Collaborate with development, infrastructure, security, and SRE teams, ensure SOC2-aware processes, and participate in on-call operations.

Develop and maintain scalable full-stack web applications for measurement and reporting. Build responsive interfaces, RESTful APIs, backend services, microservices, database integrations, and automated tests. Optimize performance, scalability, reliability, and data integrity; troubleshoot complex issues; conduct code reviews; mentor junior engineers; and collaborate with cross-functional teams and contractors.

Build and own end-to-end features for a new consumer marketplace connecting homeowners with vetted contractors. Responsibilities include developing mobile and web experiences, backend services, REST APIs, microservice architectures, geolocation matching, integrations with contractor tools, testing, and rapid product iteration. The role requires independent ownership, collaboration with product and design, and use of AI tools to accelerate development.

Develop and maintain scalable full-stack enterprise applications across front-end, back-end, APIs, databases, and cloud platforms. Build microservices, optimize systems and performance, contribute to architecture and CI/CD practices, and ensure secure, maintainable code. Collaborate with Product, Design, Architects, and Engineering teams to deliver features from concept through production while troubleshooting and upgrading existing systems.

Build and support IVR, contact center routing, and agent-facing applications throughout the software development lifecycle. Translate designs into technical solutions, develop and test applications, manage configuration and version control, document deliverables, and deploy production systems. Lead technical delivery, mentor junior developers, explore new technologies, and use AI tools for coding, testing, documentation, code review, and workflow improvements.

Build and own Grafana’s experimentation platform across a TypeScript and React frontend and Go backend. Develop experiment configuration, metrics, instrumentation, statistical analysis, feature-flag integrations, observability connections, and AI-assisted workflows. Partner with data scientists, engineers, analysts, and product stakeholders to evolve the internal tool into a customer-facing product. Responsibilities include production operations, on-call support, technical mentorship, architecture documentation, and improving scalability, reliability, and developer adoption.

Own and deliver a healthcare platform domain across React applications, micro-frontends, Python serverless APIs, data, and AWS infrastructure. Design secure authentication and authorization, integrate enterprise APIs, build scalable data and caching layers, and operate services in a regulated PII/PHI environment. Lead CI/CD, infrastructure as code, observability, reliability, architecture, and production support while mentoring engineers and driving ambiguous technical initiatives independently.

Own end-to-end full-stack development across web applications, Chrome extensions, mobile platforms, and backend services. Build scalable React interfaces and Node.js microservices handling large datasets and concurrent requests. Translate customer needs into technical solutions, integrate APIs, create workflows and schemas, and deliver iterative, high-quality features. Collaborate autonomously with product and remote engineering teams while supporting post-launch improvements.

Develop and launch scalable full-stack web applications using PHP, Laravel, SQL, JavaScript, React, and related technologies. Responsibilities include building APIs, designing database schemas, optimizing queries and code, implementing secure and maintainable software, collaborating cross-functionally, mentoring junior developers, and owning features through production in an agile continuous-deployment environment.

Develop and maintain full-stack security infrastructure features, expand PKI, PAM, and KMS products, collaborate directly with enterprise customers, and explore AI applications for secrets management. The role requires deep JavaScript ecosystem expertise, particularly React.js, Node.js, and TypeScript, with Go and DevOps experience preferred. This is a primarily remote role for candidates in specified regions who can work U.S. hours.

Designs, develops, and supports infrastructure solutions focused on Red Hat Enterprise Linux. Responsibilities include Linux deployment, configuration, patching, automation, cybersecurity remediation, system integration, testing, documentation, and infrastructure support. The engineer collaborates with project teams and stakeholders in an Agile environment supporting an integrated air and missile defense system.

Build and ship full-stack web and mobile experiences across Affirm’s consumer products. Break down projects, collaborate with product, design, and analytics teams, develop scalable APIs, write well-tested code, monitor service health, participate in on-call support, review code, and contribute to engineering growth and interviewing.

Build and lead full-stack applications using React, Node.js, and REST services. Design APIs and databases, optimize frontend performance, uphold testing and CI/CD practices, and improve observability, scalability, security, and maintainability. Collaborate with product, design, data science, medical, and security teams. Mentor engineers, document technical decisions, and advance secure AI-assisted development workflows.

Develop and deploy scalable full-stack healthcare applications using Go, TypeScript, Angular, and AWS. Responsibilities include technical design, coding, automated unit/integration/end-to-end testing, code reviews, troubleshooting, agile ceremonies, mentorship, architecture improvements, and occasional on-call support. The role contributes technical leadership across frontend and backend systems while collaborating with Scrum teams and cross-functional partners.

Build and improve Grafana’s plugin ecosystem, including Marketplace features, plugin discovery, installation, delivery, review, developer tooling, and portal experiences. Develop across Grafana’s frontend, Go services, and grafana.com; improve reliability and operations in Grafana Cloud; collaborate with plugin developers, partners, product managers, and internal teams to shape the roadmap.

Performs full-stack systems integration, verification, validation, and hardware/software integration for an integrated air missile defense system. Builds development environments using hardware, software, virtual machines, and infrastructure-as-code; supports requirements reviews, testing, deployment, and operational-site integration in the UAE. Collaborates with distributed engineering teams and international customers while applying systems analysis, security, infrastructure, database, and software development expertise.

Designs, develops, deploys, and sustains Windows infrastructure for an integrated air and missile defense system in the UAE. Responsibilities include Windows Server administration, Active Directory, virtualization, PowerShell and Ansible automation, cybersecurity remediation, infrastructure support, system integration, and collaboration with distributed agile teams and international stakeholders. The role is a full-time expatriate assignment for approximately two years, with possible extension.

Deploys, configures, patches, secures, and sustains RHEL infrastructure for an integrated air and missile defense system. Automates Linux provisioning and administration, remediates security findings, supports system integration and verification, develops infrastructure solutions, and provides project-team support. The role collaborates in an Agile/Scrum environment and requires a two-year expatriate assignment to the United Arab Emirates.

Designs, develops, and supports infrastructure solutions for an integrated air and missile defense system. Responsibilities include VMware platform administration, enterprise server provisioning, infrastructure automation, cybersecurity remediation, systems integration, and collaboration with project stakeholders. The role decomposes project milestones into actionable work and supports agile delivery across geographically distributed teams.