Top Remote Principal Software Engineer Jobs in Chicago, IL

Lead design and implementation of large-scale Pub/Sub and messaging services within Azure Event Grid/Microsoft Fabric. Define scalable, reliable architectures, drive testing and CI/CD automation, build developer tooling, mentor engineers, manage incident response and operational excellence, and collaborate with PMs, EMs, researchers, and customers to deliver production-ready cloud services.

Design and build autonomous accounting agents, implement a custom accounting ledger, integrate financial data providers, and ship daily features using TypeScript/Node/Svelte. Work rapidly in an early-stage startup, make product decisions, and engage in customer problem discovery.

Lead architecture and implementation of Revenue Hub (CPQ, Billing, Payments). Design APIs, domain models, and platform contracts; build and ship distributed, event-driven systems; ensure financial correctness and safe AI-agent interactions; own large cross-team initiatives; mentor senior engineers and drive platform patterns, reliability, and extensibility.

The role involves designing and developing secure software solutions, focusing on innovative sensor technology for Linux environments, and enhancing customer adoption through collaboration.

Design, develop, and maintain scalable software solutions. Collaborate with teams to troubleshoot issues and enhance the software delivery lifecycle. Focus on backend services, using Java and various tools for performance optimization.

The Principal Software Engineer will lead technical initiatives, align cross-functional teams, establish standards, and guide multiple engineering teams towards strategic objectives, driving large-scale improvements in business outcomes.

Lead design and build of a 0-1 Identity Graph platform for real-time identity resolution. Own architecture, implement high-performance synchronous read models, build data pipelines, enforce PII privacy boundaries, ensure production resilience and observability, and mentor engineering teams while aligning cross-team stakeholders.

Design and operate large-scale, AI-native cloud infrastructure (especially Kubernetes/AKS). Improve service quality, automate incident prevention/remediation, accelerate engineering productivity, and integrate AI tools into development workflows.

Work with customers and cross-functional teams to design, build, and deliver cloud-based solutions. Lead design, identify dependencies, mentor engineers, act as DRI and on-call, and improve availability, reliability, observability, and performance. Contribute to open-source assets and collaborate with Microsoft product teams to produce extensible, maintainable code and scalable solution patterns.

Founding engineer responsible for architecting and building core product components, writing scalable Python code, designing and maintaining AI/ML infrastructure, implementing testing and CI/CD best practices, shipping backend production systems, collaborating on product roadmap, and mentoring future engineers.

Lead high-impact, cross-product engineering initiatives as the top individual contributor. Define success, simplify complex systems, shape technical strategy, coach senior engineers, and drive measurable outcomes. Stay hands-on with code and production systems while enabling teams and using AI tools to accelerate delivery.

Lead development and ownership of core MDR platform components (high-performance log analytics, post-processing, multi-tenant syslog cluster, cross-platform agents). Make architectural decisions, mentor engineers, drive CI/CD/cloud deployments, ensure security, observability, and zero-downtime production operations.

Design, build, and operate large-scale, highly available distributed file storage services on Oracle Cloud. Lead architecture and development, troubleshoot and optimize performance, collaborate with product management, and establish operational best practices.

Lead hardware strategy, performance architecture, and benchmarking for large-scale Microsoft 365 and AI workloads. Investigate performance, scalability, and efficiency across compute, GPU, memory, storage, networking, and accelerators. Partner with Azure and platform teams, build AI-assisted performance engineering tools, and influence cross-organizational architecture and infrastructure decisions.

Lead end-to-end design and delivery of AI-infused, enterprise full-stack applications on Azure. Architect resilient solutions, build Copilot/agentic features, enforce engineering best practices, mentor engineers, collaborate with PM/UX teams, ensure quality/reliability, and support production services and integrations.

Design and develop scalable features for secure software. Advocate for quality standards and engage with customers. Work remotely with a focus on product improvement.

The Principal Software Engineer will build systems for safe software deployment, enhance developer frameworks, and ensure reliability in code delivery.

The Staff/Principal Software Engineer will work in a remote global team, addressing software engineering challenges while fostering collaboration and clear communication.

Lead and contribute to Elasticsearch core search and indexing capabilities. Define technical vision for indexing, retrieval, and relevance; research data structures and retrieval algorithms; drive roadmap for large-scale search systems; collaborate with product and cross-functional teams; mentor engineers and implement robust, high-performance search infrastructure.

As a Principal Software Engineer at Fetch, you'll design scalable systems for user engagement, drive experimentation, lead technical strategy, and mentor teams to improve engineering productivity and system reliability.

The Sr./Principal Software Engineer will design and implement core capabilities for SingleStore's cloud platform, focusing on scalability and reliability, while mentoring other engineers and collaborating with cross-functional teams.

Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.

Lead technical ownership and hands-on engineering for the integration backbone of a financial SaaS platform. Modernize legacy integration processes into .NET services, design reliable REST and file-based connectors, optimize Oracle SQL/PL/SQL, improve observability, and drive cloud-native Azure patterns. Mentor engineers, enforce standards, and champion AI-first development to increase delivery velocity and operational quality across multiple production ecosystems.

Lead integration of AI/LLMs into enterprise SaaS and desktop products, evangelize AI-first practices, design and implement scalable .NET/C# backends, modernize legacy architectures, mentor engineers, and collaborate with product and QA across the full development lifecycle to deliver AI-enabled features and agentic workflows.

Principal IC responsible for reliability, observability, and modernization of a .NET-based Platform Services portfolio on Azure. Own architecture, resilience patterns, shared libraries, and migration of legacy .NET services. Implement observability, event-driven messaging, and AI-first engineering practices while mentoring engineers and partnering with architecture teams.