Top Principal Software Engineer Jobs in Austin, TX

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 high-impact initiatives for a product platform, architecting security systems, mentoring engineers, and optimizing distributed infrastructures across teams.

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

The Principal Software Engineer will design and optimize backend applications/services, improve payment integration, and oversee code quality within AWS.

Provide technical leadership for internal platforms and security automation supporting Upstart Bank. Lead architecture, design, and implementation of platform services, APIs, relational schemas, authentication and RBAC systems. Partner with risk, compliance, and operations stakeholders, mentor engineers, mitigate technical risks, and drive long-term platform strategy and engineering standards.

The Principal Software Engineer will define technical roadmaps, guide system architecture, mentor leaders, and drive product direction in Capital Supply operations.

Lead security architecture and threat modeling for the DNSid platform. Design cryptographic core, build secure SDKs (TypeScript, Go, Python), enforce supply-chain and deployment security, partner on standards (IETF), and own org-wide security posture including secrets management, SOC 2 readiness, and incident response.

Lead and mentor an engineering team building GovIntel and GovChannel product capabilities. Own technical direction, design and deliver scalable SaaS features, APIs, integrations, and platform reliability. Partner with Product, QA, Cloud Ops, and stakeholders to prioritize work, drive CI/CD and observability practices, lead reviews and incident response, and apply AI-assisted tools to improve development speed and quality.

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

The Principal Software Engineer at Dropbox leads technical strategy and execution on critical software systems, focusing on AI integration and product development across teams. The role requires deep technical expertise and a collaborative approach to shaping company objectives and long-term strategies.

Lead the architectural design and development of a new consumer credit product, focusing on backend systems, distributed services, and integrating AI tools. Mentor team members and influence product direction through engineering insights.

As a Principal Software Engineer for the AAP team at Toast, you will design scalable systems, develop technical strategies, mentor engineers, and enhance data-driven initiatives.

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.

The Principal Test Framework Software Engineer will design and implement test automation frameworks for hardware validation, collaborating with teams to ensure quality and efficiency in AI hardware systems.

The Azure Principal Software Engineer will lead client engagements, manage large-scale technical projects, and provide expertise on Azure solutions, focusing on both clients and project teams.

Responsible for designing, developing, debugging, and supporting Design-for-Test software in VLSI Design Automation.

The role involves building and optimizing a machine learning and simulation platform, supporting MLOps, model deployment, and infrastructure modernization, while mentoring engineers.

Lead AI adoption initiatives and cultural transformation in engineering at Yahoo Mail, enhancing developer productivity through AI tools and practices.

Lead architecture and technical strategy across an infrastructure platform ecosystem. Drive hands-on architectural improvements to graph engine and backend services, reduce technical debt, establish standards, champion AI-first engineering practices, run architecture/code reviews and mentorship, and collaborate with product and leadership to ensure scalable, extensible systems.

The Principal Software Engineer will drive the technical roadmap for Panthey's hosting platform, architect core services, and provide technical leadership and mentoring to engineers. They will work on distributed systems, container orchestration, and AI-native engineering practices, ensuring platform reliability and performance.

The Principal Software Engineer will develop scalable applications using Hadoop and related technologies, manage software projects, and collaborate with teams.

Lead technical aspects of an engineering team, design and revamp systems, improve efficiency, mentor engineers, and contribute to product strategy.

Lead design, architecture, and hands-on implementation of scalable healthcare SaaS systems. Drive interoperability (HL7, FHIR, EDI), mentor engineers, liaise with stakeholders, manage technical risk, and ensure quality, performance, security, and innovation.

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

Design, build, and improve Elasticsearch distributed-systems components for scalable, concurrent, and consistent indexing. Maintain cluster coordination for performance and resilience, push system scale limits, investigate performance and concurrency issues, support operations/support engineers, and lead projects involving multiple engineers from design through delivery.