Top Staff Software Engineer Jobs in Denver & Boulder, CO

Lead cross-team software architecture and delivery across a large .NET platform. Drive migration to .NET 8, strengthen HIPAA-compliant tenant isolation, improve CI performance, establish quality and observability standards, and ship AI features such as clinical documentation tools. Mentor senior engineers, influence hiring standards, conduct complex code reviews, and partner with product leadership. The role requires production experience with C#, .NET, cloud infrastructure, regulated systems, and large language model features.

Design and build complex customer-facing product features, own technical decisions, contribute to architecture and technical direction, uphold code quality, mentor engineers, and support production incidents. The role collaborates closely with Product and Design across a modern web stack including React, TypeScript, Node.js, .NET, relational databases, and Microsoft Azure.

Lead design and implementation of Pinterest Edge systems (CDN, TLS, DNS, proxies) to manage automation traffic and rate limiting at scale. Develop request-processing logic in Envoy, collaborate with vendors and platform teams, mentor engineers, use AI to accelerate workflows, and participate in on-call incident response and reliability improvements.

Lead hands-on software engineering and architecture across multiple teams, designing and delivering Angular and .NET applications, APIs, integrations, cloud solutions, and reusable engineering platforms. Modernize legacy systems, improve reliability and security, troubleshoot production issues, strengthen CI/CD and testing, and mentor engineers. Establish practical AI-assisted development practices and customer-facing AI capabilities with appropriate security, validation, traceability, and human oversight.

Provide technical leadership for SingleStore Flow, designing and implementing reliable data migration, CDC, APIs, and distributed systems. Lead major architectural initiatives, solve data consistency and performance challenges, improve observability and operational readiness, investigate incidents, mentor engineers, and partner with product, support, solutions, and customers. Remain hands-on while advancing testing, documentation, release practices, and AI-assisted migration capabilities.

Lead the technical direction, architecture, migration, reliability, scalability, performance, and security of cloud-native authentication services. Drive complex multi-quarter initiatives using Go and Python across AWS and GCP, establish engineering standards, support incident response and observability improvements, and influence cross-functional roadmaps. Mentor engineers through technical guidance, reviews, and collaboration while participating in on-call support.

Architect and deliver distributed backend systems and infrastructure supporting customer service and KYC compliance workflows. Set technical direction, define roadmaps, lead end-to-end project delivery, mentor engineers, and build reliable high-scale services using Go, gRPC, TypeScript, React, cloud infrastructure, and DevOps tooling. Partner across teams and time zones to improve platform capabilities, workflow efficiency, cost, quality, customer satisfaction, and compliance outcomes.

Lead design and delivery of enhancements to a next-generation AI agent platform. Own large features and infrastructure, mentor engineers, set technical standards, drive cross-team initiatives, improve reliability and SLOs, and influence product and process decisions to scale systems supporting millions of interactions.

Leads architecture and development of Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, selecting technologies, developing analytics and infrastructure, solving complex problems, guiding product direction, mentoring engineers, and improving scalability and sustainability. The role collaborates across engineering, product, design, QA, Mozilla, and open-source communities in a fully remote environment.

Lead architecture and technical direction for Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, making technology decisions, developing analytics and infrastructure, solving complex problems, mentoring engineers, collaborating across product and design teams, and improving system scalability and maintainability. The role also contributes to product growth, open-source collaboration, and data-informed decisions within a fully remote international team.

Lead the technical direction and architecture of the Foundations platform team, owning authentication, authorization, SSO, secrets management, tenancy, and core platform services. Design APIs, drive services through launch, make technical decisions, establish engineering standards, and mentor engineers without formal management authority. Partner with engineering and product leaders to align execution with priorities.

Lead architecture and delivery of complex web and mobile product initiatives. Build React and React Native applications, scalable components, APIs, data models, and shared libraries. Establish engineering standards, improve testing, performance, security, and reliability, and optimize database queries. Mentor engineers, guide technical decisions, and partner with leadership and stakeholders to shape the product roadmap. This is a fully remote role supporting veterinary clinic operations and supply-chain workflows.

Lead the technical direction, architecture, and development quality of complex Android applications. Mentor engineers, integrate backend services, support offline-first functionality and diverse hardware, oversee CI/CD and releases, and document engineering standards. The role also involves robotics integrations for public safety use cases, including drones and body-worn cameras, while collaborating with technical and non-technical stakeholders.

Lead high-impact initiatives and architect enterprise-grade APIs while mentoring engineers. Collaborate across teams to influence technical strategy and scale platform architecture.

Own ambiguous, cross-team product engineering problems from framing through launch and iteration. Partner with product, design, and data; lead architecture, reliability, performance, and technical decisions across the stack. Influence teams without formal authority, mentor engineers, improve engineering practices, use metrics and experimentation, and apply AI throughout software development. Participate in on-call support.

Own the design, development, and automation of Coinbase’s routing infrastructure connecting services to Kubernetes backends. Build scalable capabilities using Envoy, Istio, Ambient Mesh, and SPIFFE; improve routing latency, reliability, and performance; enhance developer tooling with responsible AI; and collaborate with security, reliability, and observability teams to resolve complex distributed-systems issues.

Lead the architecture, development, testing, and maintenance of scalable backend systems and APIs. Drive technical decisions, code quality, performance optimization, documentation, continuous delivery, and monitoring. Collaborate with product, design, and engineering teams to translate requirements into reliable solutions. Mentor junior engineers, conduct code reviews, resolve complex technical issues, and contribute to agile development and overall technology strategy.

Lead the technical direction of Elixir/OTP distributed systems for a spacecraft ground-control platform. Responsibilities include defining architecture and roadmaps, leading cross-functional initiatives, improving reliability and scalability, establishing testing and engineering standards, managing incidents, influencing product strategy, documenting systems, and mentoring engineers and emerging technical leaders.

Lead application engineering for a new Azure cloud platform and multi-year modernization program. Own target architecture, multi-tenant security, canonical domain models, integrations, resilience, data migration, and cloud-native application delivery. Modernize legacy .NET, WCF, and SQL systems while establishing engineering standards, CI/CD quality gates, observability, and secure development practices. Provide hands-on coding, technical leadership, architecture decisions, mentoring, and cross-functional partnership with cloud, security, network, and IT teams.

Design, build, and operate high-throughput WAL replication and event-streaming infrastructure supporting cache invalidation, data synchronization, and change-data-capture consumers. Lead migration from batch processing to unified event-driven pipelines, define delivery and correctness guarantees, establish architectural standards, mentor engineers, and support 24/7 incident response. The role requires deep expertise in replication, streaming semantics, systems programming, performance, reliability, and cross-team technical leadership.

Designs, operates, and governs distributed caching infrastructure for high-volume healthcare workflows. Responsibilities include defining consistency and performance contracts, eviction and invalidation strategies, multi-tier cache architectures, operational recovery, incident response, engineering standards, shared libraries, technical reviews, and mentorship. The role leads cross-team caching initiatives and participates in a 24/7 on-call rotation, with an initial focus on claims adjudication.

Staff Software Engineer responsible for PostgreSQL performance and transactional database architecture at scale. The role includes diagnosing production issues, designing benchmarking and regression-detection systems, defining performance contracts, optimizing cluster topology and queries, leading incident response, reviewing schemas, and mentoring engineers. The engineer will support 24/7 on-call operations and drive cross-team architectural initiatives in a regulated healthcare technology environment.

Staff Software Engineer leading architecture, hands-on development, and delivery of reliable frontend, backend, API, data, and production systems across multiple teams. The role drives multi-quarter initiatives, AI-enabled engineering practices, system scalability, security, observability, incident response, technical standards, mentorship, and alignment between technical investments and product outcomes.

Leads programmatic advertising partner integrations using OpenRTB and develops scalable backend systems for ad performance optimization. Owns the full software development lifecycle, drives experimentation through A/B testing, collaborates with product, data science, and external partners, and maintains production quality. The role also mentors junior engineers and advances AI-enabled engineering workflows through tooling, enablement, validation, and change leadership.

As a Staff Software Engineer in Infrastructure, you will lead a team in building high-performance, distributed systems, guide project direction, mentor engineers, and improve data ingestion architecture.