Sr. Software Engineer

Meet the Moment with Halcyon Labs We're living through a once-in-a-generation shift in how work gets done. Data, automation, and AI are quickly becoming the center of every business decision - and Halcyon Labs is leading the transformation. You'll be working on the challenges that sit at the heart of modern business. No matter your role, the work you do will help organizations move faster, see more clearly, and tackle questions that used to feel impossible. If you're ready to meet the moment with innovation, curiosity, and excellence, there's a place for you here. Why work for just any analytics company? At Halcyon Labs , Inc., we are explorers, dreamers and innovators. We’re on a journey to build the best analytics platform in the world, but we can’t do it without people like you, leading the way. Forget the stereotypical tech companies of the past. Embrace the unconventional, exercise your imagination and help alter the future with Halcyon Labs . Halcyon Labs Careers%2Fjob%2FUS---Remote%2FSr-Software-Engineer_R11906&data=05%7C02%7Ctina.hoeppner%40alteryx.com%7C91f28e71c0ea44267ac508dea026ca9d%7C522f39d9303d488f9deba6d77f1eafd8%7C0%7C0%7C639124285630081145%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=vyBMTJpGmhVuFmX%2FRQQOaInxkPqfDskuWf6xrtcUevk%3D&reserved=0" rel="nofollow ugc noopener noreferrer" target="_blank">Sr. Software Engineer Current: Responsibilities: Assist Product Management and SDK team in definition of work (stories, tasks) Take full ownership of work outcomes including design, development, and testing; support and contribute to DevOps pipeline Contribute to quality system (framework), with a strong commitment to leading with quality Participate in code reviews, ensuring our delivery of clean, well-tested, and performant software Help in the development of a great work environment by being a leader and mentor within the team and working collaboratively across teams Required Skills: 3+ years of Python and C++ design, development, and debugging experience preferably leveraging open source and open standards Design, implement, and maintain embedded Python runtime integration in a predominantly C++ engine/host environment. Own and evolve the Halcyon Labs Python Tool including C++ plugin engines and process lifecycle (server startup, persistence, shutdown). Develop and troubleshoot SDK engine plugin components (e.g., gRPC-based engine plugins, streaming pipelines) in C++ with Python-facing APIs. Debug complex native/runtime issues involving DLL/.pyd conflicts, OpenSSL and other native libraries across multiple Python versions. Lead modernization work around virtualenv/venv management and installer/packaging plumbing , including WiX (installer) and native DLL exports. Maintain and extend native/compiled Python extensions, ensuring compatibility with modern NumPy/CPython ABIs. Collaborate with security and platform teams to remediate native library vulnerabilities (e.g., c-ares, libxml2, SQLite, OpenSSL) and keep the SBOM healthy. Improve and support developer SDKs (v1/v2), including debugging C++/Python streaming and serialization issues for 1P and 3P tool authors. Drive reliability and performance improvements in engine ↔ Python bridges , focusing on deadlocks, crashes, and high-throughput streaming scenarios. Contribute to and maintain CI/CD pipelines and code-quality tooling (e.g., C++ docs jobs, coverage, static analysis) affecting C++/Python hybrid repos. Author and maintain architecture and operational runbooks for C++/Python integration points, including upgrade playbooks for new Python/OpenSSL versions. Mentor other engineers in best practices for native–Python interop , debugging cross-language issues, and designing robust extension points. Experience with (REST) API and/or SDK development MS/BS degree in Computer Science or equivalent experience Experience with object oriented and functional design patterns Experience using Git and Git-based pipelines or equivalent Experience mentoring and developing others Strong skills in critical thinking, decision making, problem solving, and attention to detail Growth focused and curious about new challenges and experiences Valued / Bonus Qualifications Node.js Familiarity with cloud computing / managed services (GCP/Azure/AWS) Experience or familiarity with AI-driven development in a modern IDE Front end experience in React or a similar framework including Javascript and JSON Experience with optimizing protocols and building efficient RPC systems Networking & concurrency experience Knowledge and experience with distributed computing, big data and stream processing systems Container experience: Docker, Kubernetes Rust and/or Golang familiarity Experience with a data prep and blend and predictive analytics workflow platform such as Halcyon Labs Compensation: Halcyon Labs is committed to fair, equitable, and transparent compensation. Final compensation will be determined by various factors such as you