Top Senior Level Software Engineer Jobs in CO

Designs, builds, and scales backend services and integrations for payments, billing, identity, and partner connectivity. Sets technical vision and architecture for distributed systems, leads cross-team delivery, manages production rollouts, builds fault-tolerant services and data pipelines, and mentors engineers. The role partners with product, design, and engineering teams to deliver frequent, reliable improvements for Flex’s rent payment platform.

Design, build, and scale backend services and integrations for payment, billing, identity, and partner systems. Own API scoping, design, implementation, deployment, and production operations with minimal oversight. Build fault-tolerant systems, data pipelines, and scalable architectures while collaborating with product, design, engineering, and external partners. Contribute to reliability monitoring, observability, automation, technical standards, and mentoring in a distributed team.

Build and own full-stack MarTech services, scalable APIs, event-driven systems, data pipelines, and customer-facing web experiences. Integrate advertising, analytics, messaging, and marketing platforms while supporting attribution, identity resolution, experimentation, acquisition, and retention. Collaborate cross-functionally with marketing, product, data, design, and engineering teams to launch measurable growth initiatives. Mentor engineers and establish technical best practices across high-scale marketing infrastructure.

Design and build backend services and APIs for identity resolution and platform integrations. Optimize event-driven pipelines processing billions of signals, deploy cloud-native services on AWS EKS and Kubernetes, and ensure reliability, observability, and scalability. Collaborate with engineering, product, and data teams to deliver identity solutions while mentoring junior engineers. The role requires expertise in backend or data engineering, distributed systems, streaming technologies, cloud deployment, data modeling, and high-throughput databases.

Leads the architecture, design, development, integration, verification, and testing of complex software and multidisciplinary space systems. Responsibilities include managing system requirements and architectures, defining operational concepts, leading milestone reviews, mitigating technical risks, improving engineering processes, and mentoring software engineers. The role requires advanced software engineering expertise, scalable system design, algorithmic knowledge, technical leadership, and an active Top Secret clearance.

Lead design and implementation of modernized insurance underwriting and policy administration solutions. Drive cloud transformation, data-driven and secure architectures, improve risk selection and claims resolution, enhance customer experience through automation, mentor technical teams, manage client relationships, and oversee project lifecycle, budgets, and delivery quality.

Leads enterprise accessibility engineering strategy for Spectrum’s digital products. Embeds accessibility standards into design and engineering processes, oversees automated and manual testing, guides remediation and AI-enabled innovation, and partners with Compliance and cross-functional teams. Manages accessibility roadmaps, budgets, contractors, vendors, performance targets, product initiatives, and executive communications while developing leaders and advancing accessible customer experiences.

Designs and builds Salesforce architecture supporting patient, clinician, insurance, and operational workflows. Responsibilities include Salesforce development and automation, system integrations, data modeling, security, monitoring, recovery, technical standards, deployment processes, stakeholder alignment, and mentoring. The role requires architecture ownership for complex implementations and experience in regulated or HIPAA-compliant environments is preferred.

Build, deploy, and operate scalable, fault-tolerant software products and tools used by millions of consumers. Design solutions, decompose complex requirements, leverage AWS and AI technologies, contribute to CI/CD, write tests, review code, and maintain observability, reliability, security, and cost efficiency. Lead technical initiatives, mentor engineers, and own solutions throughout the production lifecycle.

Develop and maintain embedded satellite software, including command and control, mission planning, data analysis, and test infrastructure. Perform full software lifecycle activities from requirements and architecture through coding, testing, integration, documentation, and support. The role requires collaboration across teams, formal development practices, object-oriented design, UML modeling, and experience with cloud, web, database, and high-level programming technologies. Work is on-site five days per week and requires an active TS/SCI clearance.

Build and scale backend data platforms and services for real-time loan origination and financial reporting. Lead quarterly delivery, guide engineers, define technical plans, collaborate with product and design partners, improve reliability and operational practices, monitor service metrics, participate in on-call support, uphold engineering quality standards, and mentor team members. The role requires developing highly available distributed systems and scalable data pipelines using technologies such as Python, Kotlin, AWS, MySQL, Kubernetes, Spark, and Airflow.

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.