Top Platform Engineer Jobs in Denver & Boulder, CO

Own cloud infrastructure, EKS, AWS systems, CI/CD pipelines, preview environments, observability, security, and compliance. Build developer tooling and internal applications, while leading AI adoption across Engineering through agent workflows and custom solutions. Support product analytics and data science pipelines, collaborate closely with internal stakeholders, and maintain platform reliability end to end.

Develop and maintain high-performance networking platform software for switch and NIC Linux systems. Responsibilities include custom ASIC driver development, API creation, scalable and resilient systems programming, testing, debugging, documentation, and integration. The role leads software engineering projects, collaborates with internal and external development teams, contributes to architecture decisions, and mentors less-experienced engineers.

Build and launch scalable fullstack web applications and APIs for Affirm’s Ads Platform. Collaborate with product, design, analytics, and engineering partners to break projects into deliverable phases, make technical trade-offs, write tested and extensible code, monitor service metrics, support on-call operations, review code, and participate in team development and interviews.

Build and own Arcadia’s internal developer platform across a large-scale data lakehouse and Kubernetes applications. Develop self-service APIs, templates, golden paths, CI/CD capabilities, observability, security controls, and reliability practices. Lead platform migrations, improve developer experience, manage stakeholder needs and costs, set technical direction, and coach senior engineers. The role requires hands-on software development alongside expertise in cloud infrastructure, Kubernetes, networking, infrastructure as code, SLOs, incident response, and platform product management.

Build, monitor, and scale resilient cloud infrastructure across multi-region and multi-cloud environments. Develop Kubernetes controllers and infrastructure tools using Go, Python, Ruby, and Terraform; maintain Datadog observability; diagnose complex production performance and reliability issues; automate failover and capacity management; and collaborate with engineering teams on architecture and infrastructure improvements.

Volunteer senior developer to design, build, and maintain a cross-platform medical scheduling app (web, iOS, Android). Participate across the full development lifecycle: design, coding, testing, CI, deployments, code reviews, production support, incident management, and platform architecture. Attend weekly standups and commit at least four hours per week.

Owns administration, development, governance, upgrades, integrations, and support for ServiceNow and related business systems including NetSuite and Arena PLM. Builds workflows, scoped applications, automations, APIs, and system integrations; maintains data quality and CMDB integrity; supports testing and production releases; and partners with operations, service, engineering, supply chain, and finance stakeholders to deliver scalable solutions.

Lead full-stack development for Huntress’s SOC platform, building analyst-facing investigation, triage, remediation, queueing, and customer reporting experiences. Shape architecture, data models, interfaces, security practices, reliability, observability, and testing while mentoring engineers and partnering with Product, UX, and SOC stakeholders. The role emphasizes Ruby on Rails, modern frontend development, cloud infrastructure, relational databases, and technical leadership across complex cybersecurity software products.

Build and operate Resend’s scalable AWS platform, infrastructure, tooling, and self-service workflows. Responsibilities include infrastructure as code, platform standards, observability, reliability improvements, incident response, automation, and collaboration with engineers across the company. The role requires expertise in distributed systems, cloud infrastructure, networking, delivery pipelines, and production operations, with opportunities to work on high-throughput systems and developer tooling.

Design, build, and operate distributed platform services and APIs using TypeScript and Go. Improve scalability, reliability, observability, and cost efficiency; develop data-intensive workflows and event-driven pipelines; manage SLIs/SLOs, incident response, CI/CD, and production releases. Partner with product teams on end-to-end delivery, write design documents and tests, and participate in on-call rotations for large-scale systems.

Develop and maintain Microsoft Power Platform solutions, including Power Apps, Power Automate workflows, and Power BI dashboards. Integrate applications with Azure DevOps, Microsoft 365, Azure, and other data sources. Translate business requirements into scalable applications, reporting, and automation supporting portfolio management and program operations. Troubleshoot performance and integration issues, manage development priorities, collaborate with stakeholders across programs, and provide documentation and enablement. Apply SAFe portfolio and execution concepts to support leadership visibility and delivery tracking.

Develop and maintain scalable Salesforce solutions using Apex, Lightning Web Components, declarative automation, and REST/SOAP integrations. Build secure platform integrations with Platform Events and Named Credentials, manage source-controlled deployments through SFDX and CI/CD pipelines, enforce Salesforce security and governor-limit best practices, and provide testing, documentation, stakeholder collaboration, and production support.

Owns the architecture, engineering, administration, security, and evolution of the Microsoft 365 platform. Leads Entra ID and core service administration, tenant and domain strategy, migrations, collaboration governance, automation, monitoring, troubleshooting, and operational reliability. Partners with cybersecurity, compliance, business, clinical, and technology teams; coordinates vendors; documents standards and procedures; and coaches administrators without direct supervision.

Build and lead development of high-availability backend services for Affirm’s card loan platform. Design scalable APIs, data models, microservices, and event-driven systems supporting real-time loan attribution, approvals, origination, and refunds. Drive technical strategy, troubleshoot complex performance issues, collaborate with cross-functional teams, and mentor engineers while ensuring long-term system robustness and scalability.

Build and own backend services and APIs supporting money movement, payments, settlements, reconciliation, payroll integrations, retirement workflows, and financial compliance. Ship reliable production code, debug incidents, improve observability and operational tooling, and collaborate with product, compliance, operations, and engineering teams. Mentor engineers and ensure systems handling customer funds are correct, scalable, and well tested.

Build and maintain low-code solutions with Microsoft Power Platform, PowerApps, and Power Automate for federal modernization efforts. Support frontend and backend development, translate ambiguous requirements into working products, troubleshoot complex issues, participate in code reviews, and collaborate with product managers, designers, and stakeholders in a remote Agile environment.

Supports testing and reliability engineering for electro-mechanical systems used in autonomous vehicles and robotic automation. Responsibilities include developing test plans, building reliability fixtures and rigs, conducting life and environmental testing, analyzing failures, troubleshooting field systems, interpreting instrumentation data, and supporting manufacturing test fixtures. The role requires hands-on integration experience with robotics or autonomous vehicles and offers opportunities to grow ownership of complex safety-critical systems.

Architects, operates, and improves cloud data and analytics platforms and BI infrastructure. Owns platform standards, CI/CD, reliability, monitoring, incident response, security, governance, performance, and technical documentation. Leads onboarding and enables engineering and client teams through reusable patterns and guardrails. Requires production platform ownership, cloud data and BI expertise, accounting experience, scripting, SQL, troubleshooting, and cloud fundamentals.

Designs, configures, operates, and optimizes the enterprise ServiceNow platform. Responsibilities include developing workflows, integrations, automations, Agentic AI capabilities, and self-service tools; troubleshooting complex issues; supporting releases and incidents; conducting security and configuration audits; maintaining knowledge articles and SOPs; managing ticket queues, SLAs, Agile backlogs, and sprint priorities; and presenting platform metrics to IT management. Provides technical leadership, governance, mentoring, and long-term platform strategy.

Designs, operates, secures, and optimizes an enterprise Lakehouse data platform supporting analytics, AI, and data products. Responsibilities include platform administration, governance, access controls, performance optimization, monitoring, disaster recovery, Infrastructure-as-Code, CI/CD, cost optimization, capacity planning, compliance, and collaboration with cloud infrastructure and data teams. The role also provides technical leadership across multifunctional projects and requires occasional travel.

Lead the architecture, deployment, configuration, and sustainment of an Azure and Kubernetes-based Software Factory for the US Space Force. Manage DevSecOps tools, IaC and CI/CD pipelines, Linux infrastructure, security requirements, monitoring, patching, upgrades, and vulnerability remediation. Provide technical leadership, coach DevSecOps and application teams, onboard users, establish platform standards, and advance secure software delivery practices. Travel is required up to 25%.

Designs and owns shared test automation frameworks and scalable test execution infrastructure across web, mobile, and backend services. Builds tooling for test environments, test data, parallel execution, flaky-test detection, and infrastructure monitoring. Partners with engineering teams to improve test coverage and quality practices, reduces feedback-loop friction, and documents testing best practices. The role requires strong automation architecture, cloud-native infrastructure, cross-stack testing, and collaborative influence.

Owns the Databricks platform across environments, including administration, architecture, identity and access, Unity Catalog, networking, security, governance, cost controls, automation, and CI/CD. Advises technical and business teams on scalable platform design, evaluates emerging Databricks capabilities, and partners with infrastructure and security teams. The role requires production Databricks expertise, Terraform proficiency, cloud networking knowledge, strong communication, and architectural judgment.

Designs, operates, secures, and improves enterprise OpenShift and Kubernetes platforms across hybrid-cloud environments. Responsibilities include cluster lifecycle management, automation, troubleshooting, observability, resiliency, security controls, disaster recovery, developer self-service, incident response, documentation, and technical leadership. The engineer independently leads complex platform initiatives, collaborates across infrastructure and security teams, mentors engineers, and participates in on-call support.

Lead the technical vision and architectural evolution of Huntress’s Core Platform. Build complex Ruby on Rails features, solve scaling challenges, manage cross-team dependencies, drive architectural decisions, and oversee system lifecycle and technical risk. Mentor engineers, establish engineering excellence, collaborate with managers and product leaders, and help teams adopt AI coding tools responsibly.