Top Tech Jobs & Startup Jobs in Denver & Boulder, CO

Senior UI Designer responsible for end-to-end website UI design: wireframing, high-fidelity mockups, user testing, client iteration, and presenting concepts. Requires building rapid feedback loops and collaborating through the full web development lifecycle.

Design, develop, and maintain FpML-based XML schemas and XSBS structures for trade capture, validation, and downstream processing. Create XSD/XSLT/XPath transformations, support system integration and testing, document mappings, and collaborate with business analysts to accurately represent derivatives and structured products.

Develop and maintain cloud-based, high-performance services in Rust. Collaborate with technical leads and architects, guide junior engineers, translate business requirements into solutions, and enhance applications for pricing, order management, trading, simulations, and monitoring while applying agile practices and automated delivery pipelines.

Develop and maintain iOS applications using Swift and SwiftUI. Implement reactive code with Combine, follow design patterns, write UI/unit tests, profile and fix performance with Xcode Instruments, manage repos with GitHub, integrate crash reporting and analytics, and distribute frameworks via SPM/CocoaPods.

Perform functional testing of backend systems (mainframe and middleware) for payments/banking. Validate and compare JSON and XML, design and execute test cases for batch jobs and message queues, support integration testing and automation, track defects, and collaborate with development and business teams.

Lead design and delivery of domain-driven Node.js/TypeScript microservices, own greenfield builds to production, set API standards, ensure production readiness (SLOs, observability), lead incident triage and RCAs, mentor engineers, and coordinate cross-team integrations and releases.

Own and evolve data product roadmap including platforms, pipelines, models, APIs, and dashboards. Define strategy, prioritize features, lead Agile delivery, ensure governance/compliance, track KPIs, enable users, and identify data-driven innovation opportunities.

Lead business process evaluation and optimization, gather requirements, document findings, perform UAT, manage projects and resources, present results to stakeholders, train and coach junior staff, and ensure solutions meet investment operations needs.

Lead full-stack architecture and development using Vue.js front-end and .NET back-end. Provide technical leadership, mentorship, code reviews, and CI/CD-driven delivery. Build RESTful APIs, optimize databases, collaborate with product and UX teams, and ensure testing, performance, and DevOps best practices.

Lead and deliver creative design outputs for assigned workstreams, including comps, style guides, branding, graphics, layouts, and IA deliverables. Set objectives, manage project delivery, coordinate offshore resources, liaise with cross-functional teams and developers, and ensure designs are technically feasible for web and mobile enterprise environments.