Senior C++ Software Engineer

About Hummingbirds AI: At Hummingbirds AI, we're building the identity layer for AI-powered systems. Our platform continuously verifies user identity, protects against spoofing, and enables secure authentication across desktop, web, and enterprise environments. We're a small, highly technical team solving challenging engineering problems at the intersection of AI, computer vision, security, and high-performance desktop software. If you enjoy building scalable systems, writing clean C++ code, and working on products that push modern authentication technology forward, we'd love to hear from you. About the Role We're looking for an experienced C++ Software Engineer to help design and build the core of our AI-powered identity platform. This is a hands-on engineering role where you'll work on desktop applications, distributed systems, authentication technologies, and software architecture. You'll collaborate closely with our AI and engineering teams to build secure, scalable, and high-performance software while helping shape the technical direction of our products. What You'll Do Software Development Design and develop high-performance desktop applications using modern C++.Build secure authentication and identity verification features.Optimize software performance, memory usage, and multithreaded components.Write clean, maintainable, and production-ready code.System Architecture Contribute to the design and evolution of our platform architecture.Design scalable software components and APIs.Help define engineering standards and best practices.Review technical designs and provide architectural input.Distributed Systems Build reliable communication between distributed services.Improve scalability, resilience, and fault tolerance.Design APIs and backend integrations supporting desktop applications.Collaboration Work closely with AI engineers to integrate computer vision and machine learning features.Participate in technical discussions, code reviews, and sprint planning.Mentor other engineers and contribute to a collaborative engineering culture. What We're Looking For 5+ years of professional software engineering experience.Strong experience with modern C++ (C++17/20 preferred).Experience designing scalable software systems.Experience working with distributed systems or backend services.Strong understanding of multithreading and concurrency.Experience designing and consuming REST APIs.Experience with Git and Agile development.Strong problem-solving and communication skills.Professional working proficiency in English. Nice to Have Experience with any of the following is a plus: Qt / QMLOpenCVPythonDockerCI/CD pipelinesAWS, Azure, or GCPWindows desktop developmentDesktop SDK developmentAuthentication or identity managementBiometrics or computer visionSecurity-focused software Technologies We Use C++Qt & QMLOpenCVPythonDockerGitCI/CDREST APIsDistributed SystemsWindows Desktop DevelopmentAI-powered Identity Verification Why Join Hummingbirds AI? You'll have the opportunity to: Build software that combines AI, security, and computer vision.Influence the architecture of a growing platform.Solve challenging engineering problems with modern technologies.Work alongside a highly technical and collaborative team.Make a meaningful impact in a fast-moving startup environment where your ideas matter. Don't worry if you don't meet every qualification listed above. If you're passionate about building high-quality software and believe you'd be a great fit for our team, we'd love to hear from you.