Top Engineering Jobs in CO

Build and operate AWS cloud infrastructure using Terraform/OpenTofu and Spacelift. Lead multi-account architecture migrations, develop reusable infrastructure modules, improve reliability and disaster recovery, support compliance, troubleshoot cloud environments, and automate recurring issues. Partner with engineering teams, strengthen observability and incident response, and participate in an internal infrastructure support on-call rotation. The role also drives multi-quarter platform initiatives with significant autonomy.

Build and own backend services and APIs supporting retirement money movement, payments, settlements, reconciliation, compliance integrations, payroll, and financial workflows. The role involves shipping reliable production code, debugging incidents, improving observability, partnering with product, compliance, and operations, and mentoring engineers. Candidates should have extensive software engineering experience, financial systems expertise, end-to-end ownership, and Ruby on Rails or comparable backend framework experience.

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.

Own and develop Gusto’s PeopleOS internal HR platform, integrations, and AI-powered tooling. Build full-stack software, REST API integrations, MCP servers, and Claude-based workflows across Workday, Greenhouse, Slack, Google Workspace, and other systems. Partner with People Operations stakeholders on design, implementation, testing, documentation, releases, troubleshooting, and user feedback. Handle sensitive HR data while delivering reliable employee-facing tools.

Architect and build native iOS and Android financial products using SwiftUI, Jetpack Compose, and GraphQL. Lead mobile architecture, infrastructure, testing, release pipelines, and multi-quarter initiatives while applying AI workflows. Collaborate cross-functionally in a regulated banking environment, resolve ambiguous technical problems, maintain performance and security, and mentor engineers across both platforms.

Design, build, and maintain scalable Salesforce Apex solutions supporting Sales and Customer Experience teams. Use AI coding assistants throughout development, apply Salesforce architecture and release-management practices, deploy with sf CLI, and build reliable production systems at scale. Improve deployed features, measure impact, document code, and contribute beyond Salesforce when needed. Translate ambiguous requirements into scalable technical solutions and business value.

The Principal Engineer will lead technical direction across multiple teams, design architecture for financial systems, mentor engineers, and drive multi-year transformations in the Money Group.

As a Staff Software Engineer, you'll design, build, and test Gusto's core platform services, mentor engineers, and collaborate with various teams to solve complex engineering problems.

Lead full-stack development for employer and employee tax account systems: design reliable backend APIs and data models, build automation and agency-integration pipelines, model jurisdiction-specific compliance rules, mentor engineers, partner with product and operations, and deliver scalable, test-driven solutions that ensure tax accuracy and reliability at scale.

Lead design and implementation of the Tax platform: build scalable, fault-tolerant systems, improve extensibility, mentor engineers, drive technical strategy and roadmap, collaborate cross-functionally, improve reliability/incident response, and build AI guardrails to safely leverage agentic LLMs for tax compliance.