Top Software Engineer Jobs in CO

Design, build, and operate high-throughput, low-latency ad-serving infrastructure processing millions of requests per second. Optimize GPU-powered TensorRT inference, feature stores, model serving, benchmarking, experimentation tooling, and system reliability. Partner with machine learning engineers to productionize models and own systems through design, deployment, observability, capacity planning, incident response, and optimization.

Build and deploy production-grade agentic workflows for enterprise customers using Webflow APIs, CMS, AI capabilities, and external integrations. Design safeguards, observability, rollback paths, and permission boundaries; support live web properties at scale; collaborate with sales and engineering on complex deployments; and convert customer implementation learnings into reusable architecture blueprints and platform improvements.

Develop and maintain distributed spacecraft ground control software in Elixir, including satellite command and control, mission planning, mission data processing, and data analysis systems. Participate in architecture, design, and code reviews while collaborating across engineering disciplines. The role involves solving greenfield problems involving resilient, fault-tolerant, concurrent, and real-time distributed systems.

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

Build and maintain lead-to-order business systems across Salesforce and connected platforms. Design complex applications, declarative automation, Apex and Lightning solutions, integrations, APIs, data models, and security controls. Remediate technical debt, lead migrations and tool rollouts, manage testing and cutovers, and ensure production systems are observable, documented, and governed. Partner cross-functionally to translate business requirements into scalable solutions while supporting AI capabilities in go-to-market workflows.

Develop, test, document, and support scalable software solutions for T-Mobile’s customer care operations. Responsibilities include front-end and back-end development with JavaScript, HTML, CSS, and Java; collaboration with engineering teams; software testing; technical documentation; and continuous system improvement. The role operates under close supervision and may involve technologies such as microservices, virtualization, containerization, networking, and big data platforms.

Develops and supports applications using C#, .NET, and Microsoft SQL Server. Responsibilities include implementing features, fixing bugs, writing unit and integration tests, debugging across the application stack, researching solutions, and contributing to maintainable, secure, high-performance software. The role requires collaboration, independent problem-solving, continuous technical growth, and awareness of industry and open-source trends.

Leads and develops a software engineering team building real-time, event-based bonus systems. Oversees people, delivery, governance, quality, architecture, risk mitigation, and SDLC improvements. Drives AI and agentic workflow adoption, mentors developers, removes delivery blockers, and remains technically engaged with scalable, low-latency solutions across backend, frontend, messaging, middleware, and database technologies.

Lead a small team developing and supporting a business-critical verification platform undergoing re-architecture with Golang, React, and cloud technologies. Design and deliver scalable, maintainable, performant systems, oversee solution architecture and code quality, estimate work, and provide technical leadership. Mentor developers, drive knowledge sharing, collaborate with UK teams, and take ownership of solutions from development through production, including facial recognition systems and operational tooling.

Build and maintain real-time event-based systems for the Offers team. Design scalable full-stack solutions using Go, TypeScript, React, SQL, Kafka, and GCP; lead technical projects, establish code quality standards, govern solution design, estimate work, document solutions, and own delivery from development through production. The role also involves mentoring developers, supporting business needs, and serving as an escalation point.

Build and maintain high-throughput, low-latency distributed data systems across ingestion, storage, and retrieval. Optimize delivery pipelines, scale analytical database clusters (ClickHouse), develop GraphQL and log delivery solutions, monitor performance with observability tooling, troubleshoot production issues, and collaborate cross-functionally and with open-source communities to evolve the data platform.

Software Engineering Interns will build and ship high-impact software projects across product, infrastructure, customer experience, mobile, and security teams. Responsibilities include designing, developing, testing, and deploying features; collaborating with multidisciplinary teams; participating in agile development and prototyping; applying user-centered design; and learning through mentorship, technical talks, and feedback. The internship is virtual, full-time, and lasts 12 weeks during Summer 2027.