Top Senior Level Software Engineer Jobs in CO

Designs, develops, tests, and maintains software, APIs, integrations, and automation for Managed Services applications and platforms. Builds Python, Ansible, and Go solutions; supports enterprise application lifecycles; troubleshoots distributed systems; develops CI/CD pipelines; and improves operational efficiency. Provides technical leadership through architecture and code reviews, engineering standards, mentoring, documentation, and cross-functional collaboration with SRE, infrastructure, security, operations, and business teams.

Design, build, test, deploy, and maintain iOS and Android mobile applications connected to Bluetooth-enabled cycling components. Mentor engineers, provide technical guidance, participate in code and design reviews, collaborate with engineering and QA teams, and improve application functionality, performance, reliability, and integrations.

Build and maintain Cloudflare’s globally distributed Quicksilver key-value store using Go and C. Develop features, improve CPU and memory performance, enhance monitoring and operational tooling, and debug complex, hard-to-reproduce issues across the software stack. Responsibilities include code reviews, testing, deployments, rollbacks, operations, alerting, and on-call support for a system operating across tens of thousands of servers and hundreds of data centers.

Lead a platform configuration and implementation engineering team, owning technical direction, delivery commitments, architecture, system reliability, hiring, and engineer development. Collaborate across Product, Delivery, Underwriting, Compliance, and peer engineering teams. Guide distributed systems and microservices development, promote configuration-driven solutions, adopt AI development tooling, monitor team and system metrics, and contribute hands-on to design and code reviews.

As a Pre-Sales Solutions Engineer, you will drive technical pre-sales engagements, architect custom solutions, and guide customers on API integration and deployment strategies, enhancing their experience with Voice AI technologies.

Build and own integrations and data pipelines connecting healthcare and insurance systems. Develop reliable systems for claims, bills, EOBs, coverage data, portals, webhooks, and inbound files. Normalize and protect PHI, improve observability and data quality, set technical direction, mentor engineers, and use AI-native development practices.

Own and improve Hex’s production infrastructure across cloud computing, networking, databases, CI/CD, observability, security, and single-tenant environments. Projects may include Kubernetes and AWS operations, infrastructure automation, PostgreSQL scaling, deployment systems, cost optimization, workload isolation, and customer-facing connectivity features. The role requires end-to-end ownership, on-call participation, technical writing, and the ability to turn ambiguous infrastructure problems into shippable solutions.

Lead development of resilient, scalable features across Toast’s POS, backend, and frontend systems for sports, entertainment, and hospitality customers. Design, deploy, and maintain production services; lead complex reliability projects; collaborate with Product, Design, Sales, Customer Success, and other teams; build automated tests; monitor feature rollouts; and mentor engineers. The role also encourages using AI tools to improve development productivity.

Staff Software Engineer responsible for technical strategy, architecture, and development of web and mobile authentication experiences. Leads major technical initiatives, partners with product, design, and analytics, improves reliability and operational readiness, establishes engineering standards, and mentors team members. Requires extensive experience building web applications with React or Vue, proficiency in JavaScript or TypeScript, strong system architecture and communication skills, and a related degree or equivalent experience.

Leads the design, development, testing, integration, and deployment of scalable cloud products and platforms. Reviews designs and code for compliance, improves product quality, integrates emerging technologies, analyzes complex application and systems problems, and provides technical guidance and mentoring. Collaborates with project teams and communicates architecture and design proposals to senior management.