Top Principal Engineer Jobs in Los Angeles, CA

The Principal Engineer will guide architectural strategy, solve complex technical challenges, mentor engineers, and ensure compliance with healthcare standards.

Lead design and implementation of enterprise, mission-critical software. Develop Java 21+ microservices, Spring-based integrations (Spring Integration/Apache Camel), Apache NiFi data flows, and observability (Prometheus/Grafana). Build Spring Boot backends with MongoDB/Elasticsearch and Angular/React/Vue frontends, implement real-time updates, and collaborate across teams.

The Staff/Principal Engineer will lead AI-assisted engineering efforts, architect solutions using C#, React, and Python, and drive MLOps initiatives while mentoring senior engineers in a healthcare technology context.

Develop algorithms for autonomous driving and create software for safe and intuitive motion planning. Collaborate with perception and control components, and mentor team members.

Lead the technical vision and architecture of simulation software for spacecraft, focusing on multi-physics modeling and real-time execution, while driving engineering standards and mentoring teams.

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.

Lead Salesforce architecture and technical delivery for enterprise projects, focusing on Marketing Cloud and Financial Cloud. Design integrations and SOA components, develop Apex/Visualforce/Lightning solutions, manage data model and APIs, and provide technical leadership to break solutions into executable work.

The role involves developing and verifying SoCs using ASIC and FPGA technologies, creating test plans, and debugging with team collaboration.

As a Principal Flight Software Engineer, you will lead the architecture and development of flight software for space missions, ensuring safety and reliability while collaborating on technical decisions and standards.

Oversee development of spacecraft GNC systems, from architecture to flight operations, design algorithms, and mentor junior engineers.

Lead turbomachinery design and analysis for rocket turbopumps, driving aerodynamic, structural, thermal, and forced-response improvements. Collaborate with propulsion, manufacturing, test, and integration teams to develop, test, and iterate Aeon-R engine systems from concept to launch. Solve complex turbopump issues, support development and testing, and implement industry-standard design and assembly practices.

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 architecture, modernization, and development of Group Insurance applications. Modernize mainframe monoliths into Java microservices and micro-frontends on cloud, mentor distributed Agile teams, collaborate with enterprise architecture, product owners and infrastructure, and enable test automation and integrations. Approximately 10% domestic travel.

Lead engineering teams in developing command and control software for mission systems. Manage technical execution, software architecture, and mentor engineers.

As a Principal Software Engineer, you will architect AI-enabled systems, mentor teams, and guide technical decisions for scalable products.

Lead the technical vision for product integrity across reliability, thermal, structural, materials, and qualification. Pioneer physics-of-failure methods, predictive reliability and AI-driven engineering, define testing/validation frameworks, mentor technical leaders, and align cross-disciplinary teams to ensure hardware survives launch and long-duration space deployment.

We are seeking a distinguished IT professional with extensive experience to provide strategic value to our organization in a dynamic work environment.

The Principal Engineer in QA Manual will lead initiatives in quality assurance, leveraging extensive IT experience and offering strategic insights within a collaborative and non-hierarchical environment.

This role involves leveraging IT experience to provide strategic insights and contribute to the development of products and services at Nagarro, a digital product engineering company.

Nagarro seeks a Principal Engineer to contribute extensive IT experience and strategic insights in a dynamic, non-hierarchical work culture, focusing on product and service development.

Nagarro is seeking an experienced Principal Engineer for cloud-focused initiatives, emphasizing innovative and strategic contributions in a non-hierarchical environment.

Serve as a strategic leader in the implementation of SAP S/4HANA solutions, ensuring customer success and guiding project delivery while focusing on the Sales and Distribution module.

The Associate Principal Engineer role at Nagarro involves leading IT projects, leveraging extensive knowledge to provide strategic value, and working in a dynamic, non-hierarchical environment.

Seeking a distinguished IT professional with extensive experience in ETL and data engineering to provide strategic value at Nagarro.

Nagarro seeks an Associate Principal Engineer with extensive IT experience in Python to drive strategic value and innovation in product engineering.