Top Remote Senior Level Software Engineer Jobs in Chicago, IL

Design, build, and own scalable microservices and secure APIs that transfer value across blockchain and banking protocols. Extend in-house blockchain infrastructure, integrate with banks and cloud services, troubleshoot production issues, document system and testing procedures, and collaborate with product and engineering teams to deliver reliable payment experiences.

Design, develop, and deliver scalable .NET back-end and front-end solutions within an Agile, DevOps-oriented team. Lead technical design, code reviews, testing-first practices, CI/CD pipelines, containerized deployments, and ensure non-functional requirements (security, performance, scalability, maintainability). Mentor peers and collaborate across product, design, and architecture to produce high-quality software.

Lead complex engineering engagements, architect AI-driven systems, design application patterns, mentor teams, and act as a trusted technical advisor to clients.

Lead technical strategy and hands-on delivery for Card Acquisitions engineering. Drive reusable, modular platform capabilities, mentor engineers, design high-performance scalable systems, and partner with product teams to accelerate feature delivery across distributed cloud services and frontend experiences.

Serve as the senior technical lead for partner integrations with NinjaTrader APIs. Troubleshoot and resolve complex API and real-time data issues, collaborate with partner engineering and Technical Account Managers, conduct code reviews, build diagnostic tools, set API support quality standards, mentor junior engineers, and translate partner feedback into roadmap improvements.

Lead development of core client systems and engine-level infrastructure in Unity/C#. Diagnose and fix cross-cutting performance issues, upgrade third-party SDKs, evolve build tooling, produce design docs, scope multi-week infrastructure initiatives, mentor engineers, and drive profiling, optimization, and architecture changes to enable future features.

Lead design and delivery of scalable full-stack web applications using Go and HTMX, provide technical leadership and mentorship, own cloud-native Azure architecture, champion DevOps/CI-CD and operational excellence, collaborate with .NET and React teams, and promote AI-assisted tooling.

Design, build, test, and maintain backend services and APIs powering the insurance platform. Integrate payments, documents, and data providers, improve system stability, performance, and scalability, mentor team members, and participate in architectural decisions and agile ceremonies.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

Develop and maintain software applications on the ServiceNow platform, perform integrations, troubleshoot issues, and communicate with clients.