Top Principal Software Engineer Jobs in Austin, TX

The Principal Software Engineer for Developer Experience leads technical strategy, enhances developer productivity, and integrates AI into software workflows at GM.

Lead architecture, design, and delivery of PET product features; write production full‑stack code; champion testing, observability, CI/CD and operational readiness; mentor engineers and collaborate with product to shape technical roadmap.

Lead architecture and evolution of the Workers control plane, re-engineer core services for scale, own system stability and efficiency, define benchmarks, participate in on-call, mentor senior engineers, represent the team in design forums, and evaluate/apply emerging technologies including AI to improve the developer platform.

Design, build and own a petabyte-scale self-service real-time data enrichment platform. Lead query processing, ingestion pipelines, storage, indexing and performance optimization using Spark/Flink and Apache ecosystem tools. Deliver unified data catalog, improve query performance and platform efficiency, collaborate on technical reviews, and enable internal and external customers to query and extract data efficiently.

Lead design and development of complex embedded C++ software for SIGINT, radar, and electronic-warfare systems. Mentor teams, produce design and project documentation, perform integration and testing, evaluate designs, and drive DevSecOps and container-based deployment and verification practices.

Develop and integrate C++ software for electronic warfare, SIGINT, and related defense systems. Collaborate with systems, hardware, and test engineers, interact with customers, prioritize backlog, participate in milestone reviews, evaluate complex designs, and support automated digital delivery and verification activities.

Lead and mentor an engineering team in developing advanced solutions for defense-related technologies, ensuring effective design, development, and integration processes.

Lead technical ownership of a global platform for safe change: distributed key-value storage, progressive configuration delivery, testing and health-mediation. Write production code, design systems, review senior proposals, integrate LLMs, and drive cross-team initiatives to improve reliability, rollout safety, and developer productivity.

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.

As a Senior Principal Engineer, you'll define and drive the technical strategy for customer experience platforms, lead architectural decisions, and mentor engineering teams to enhance customer and agent experiences.

Lead design and build of scalable backend systems and data platforms; own architecture and production deployments; improve reliability, performance, and observability; mentor engineers and collaborate with Product, Data Science, SRE, and Security.

The role involves leading financial analysis for technology spend, designing data models, developing visualizations, and ensuring data quality, while collaborating with internal stakeholders across the company.

Lead long-term technical strategy and execution across multiple teams, architecting and evolving foundational frontend/backend systems and platforms at massive scale. Drive AI/ML adoption, solve ambiguous, high-impact problems, remain hands-on in critical system design and implementation, and align senior leaders on roadmaps and engineering standards.

Design and evolve distributed search and analytics systems for the Splunk platform. Lead complex engineering efforts from design through delivery, improve performance and reliability, mentor engineers, collaborate cross-functionally, and work with customers to resolve production issues.

Design and build deterministic, low-latency control systems for quantum hardware. Develop embedded firmware, device drivers, kernel modules, and orchestration for GPUs/FPGAs. Prototype in Rust, Python, C/C++, and CUDA, and collaborate with theory, hardware, and software teams to deliver production-ready, high-throughput control pipelines.

Lead design and prototyping of generative AI experiences for autonomy development; drive UX for Hivemind products; perform user research, collaborate with CTO and product leads, and deliver reference implementations and integrations across full-stack web and edge systems.

Serve as technical lead between NVIDIA and hyperscale CSPs on GPU firmware and system software. Drive firmware update orchestration, recovery procedures, multi-GPU coordination, telemetry/health monitoring, and incorporate CSP feedback into NVIDIAs roadmap to improve fleet-scale manageability and reliability.

Lead technical engagements with cloud service providers on rack-scale system software and firmware. Drive architecture alignment, integration readiness, error handling and recovery, health telemetry, firmware orchestration, and serviceability. Capture CSP feedback, influence NVIDIA system software design, improve tooling and tests, and mitigate execution risks through early collaboration.

Lead architecture for high-volume distributed systems using Domain Driven Design. Drive platform capability improvements, automate architecture descriptions, advise on buy vs. build, and promote best practices for availability, performance, scalability, and security. Mentor teams, communicate complex technical decisions to stakeholders, and design/operate data-intensive cloud-native systems using CI/CD, observability, and modern Big Data technologies.

Design and develop software to onboard hardware accelerators and optimize storage datapaths for Azure Storage. Drive design, debugging, performance tuning, operations, and cross-team collaboration across research, compute, and storage to improve throughput, scale, reliability, and observability.

Lead architecture, design, and implementation of cloud-native TFDM applications. Drive DevOps/GitOps CI/CD pipelines, containerization (OpenShift/Kubernetes), infrastructure-as-code, AI-assisted development, system modernization, troubleshooting, mentoring, and executive briefings to support deployment, automation, reliability, and security.

Lead architecture and implementation of large-scale, elastic Pub/Sub and messaging services. Define scalable, reliable designs, mentor engineers, drive CI/CD and testing strategies, manage incidents, partner with PMs/EMs, and advance AI tooling across the SDLC to enable real-time analytics and integrations.

Lead architecture, development, debug, and deployment of SoC/accelerator firmware libraries (ANC, compute, DMA). Drive silicon bring-up, firmware frameworks, verification, cross-team integration, and mentor engineers while coordinating with hardware, validation, security, and platform teams.

Drive architecture, design, and implementation of large-scale software systems. Lead technical strategy, mentor engineers, collaborate cross-functionally, ensure code quality and operational reliability, and guide delivery of complex features and platform improvements.

Lead design and implementation of full-stack, large-scale cloud platform capabilities for Microsoft Fabric. Shape architecture, build GraphQL APIs, developer tools, AI-driven experiences, participate in livesite operations, mentor engineers, and drive cross-team initiatives to deliver scalable, reliable developer-facing services.