Top Senior Level Software Engineer Jobs in CO

Design, develop, and test complex software systems for space and ground systems. Write maintainable code, use version control, participate in code reviews, troubleshoot issues, document configurations, and provide technical leadership and mentorship. Make high-level design decisions impacting cost, schedule, and performance while staying current with industry trends.

Design, architect, develop, test, and oversee complex software systems for space technologies. Lead engineering teams, make high-level technical decisions, guide large-scale projects, troubleshoot distributed systems, and drive software strategy. Collaborate with technical and non-technical stakeholders, conduct code reviews, document systems, mentor engineers, and evaluate technologies, methodologies, automation, cloud platforms, databases, and secure development practices for classified environments.

Designs, develops, tests, and architects complex flight software for space systems. Responsibilities include writing maintainable code, collaborating on requirements, managing changes with version control, conducting code reviews, troubleshooting issues, documenting processes, and mentoring engineers. The role also provides technical leadership and contributes to innovative mission, spacecraft, and payload-control software solutions.

As a Senior Principal Engineer, you'll define and drive the technical strategy for customer experience platforms, lead architectural decisions, and mentor engineering teams to enhance customer and agent experiences.

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.

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.

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.

Design, build, and support Amazon Connect contact flows, serverless Java/Python microservices, and React agent workspaces. Integrate LLM-powered agent assistance (Bedrock/RAG), secure REST APIs, and implement monitoring and reliability for enterprise contact center solutions.

Lead the technical vision and architecture for backend systems supporting experimentation, personalization, analytics, and conversion optimization. Design and operate high-throughput distributed systems and APIs, build data infrastructure, and productionize AI/ML capabilities. Drive complex multi-team initiatives, influence engineering strategy, establish technical standards and operational excellence, and mentor senior engineers. Partner with product, data science, ML, and engineering teams to translate business needs into scalable solutions.

Build and operate customer-facing applications and shared platform services using TypeScript, Node.js, React, and Next.js. Own API contracts, SDKs, data models, cloud delivery, observability, testing, and service adoption across engineering teams. Lead AI-assisted development practices, delivery automation, reliability improvements, technical documentation, design reviews, and mentorship. The role also involves evolving financial, authentication, workflow, and event-driven systems in a hands-on individual contributor capacity.

Own performance optimization, reliability, observability, capacity modeling, and automated failover for Coinbase’s blockchain node infrastructure. Diagnose resource bottlenecks, reduce infrastructure costs, define SLOs and SLIs, support protocol upgrades, and improve node performance across distributed systems at scale. Collaborate with protocol integration, wallet, and indexer teams while applying backend programming and systems profiling expertise.

Design, build, and operate scalable, secure data platform infrastructure for ingesting, processing, cataloging, and accessing petabytes of data. Improve Spark/Databricks reliability and developer experience, build ingestion/replication systems, develop internal libraries and tooling (Go/Python), and collaborate with cross-functional teams to support analytics, ML, and customer-facing data products.

Lead Salesforce and billing platform engineering with an emphasis on AI-driven automation. Build scalable Salesforce solutions (Apex, Flow, LWC), pilot LLM/agent workflows, modernize CI/CD and test automation, support Quote-to-Cash and billing processes, collaborate across product and finance, drive technical debt reduction, and mentor junior engineers.

Architect and deliver scalable, secure systems across teams; solve complex cross-team problems; lead large technical initiatives; evaluate emerging technologies; mentor engineers; align technical direction with product and business outcomes while balancing performance, maintainability, and cost.