Software Engineer Jobs in California, United States

Software Engineering team at Northrop Grumman develops secure, mission-critical software for defense systems. The role synthesizes requirements into test plans, executes qualification testing, and collaborates with systems and development engineers to ensure software integrity.

Northrop Grumman Aeronautics Systems seeks Software Engineer and Principal Software Engineer, Java to develop enterprise Java solutions in a SOA environment. The role designs, implements, and delivers Java applications, collaborates with system engineers and integration teams, and follows the full software lifecycle.

PlusAI is pioneering AI-based virtual driver software for autonomous trucks. This role owns the fullstack product surface, building web applications and APIs that enable autonomy teams to author simulations and analyze data.

Northrop Grumman Aeronautics Systems seeks a Software Engineer/Principal Software Engineer, Java to develop, integrate, test and maintain desktop, web and backend services within an Integrated Product Team. The role collaborates with hardware, system test and other software teams, builds CI/CD pipelines, identifies technical risks and reports progress to senior leadership.

Northrop Grumman Aeronautics Systems team builds advanced aerospace software and ensures mission‑critical quality. The Software Quality Engineer implements quality standards, audits processes, and supports CMMI and AS9100 compliance, while the Principal role leads quality planning and supplier evaluation across multiple programs.

Northrop Grumman, Embedded Systems team builds mission‑critical software for aerospace and defense platforms. The role designs, develops, and maintains embedded firmware and software, applying Agile, OOP, and memory‑mapping techniques while collaborating with customers and cross‑functional teams.

AWS Infrastructure Services' Data Center Network organization, specifically the DCFC (DCF Controllers) team within CLOS Fabric Engineering, builds software controllers that monitor network/fabric state, recover out-of-service capacity, enable network scaling, manage IP allocation, and plan decommissioning. As a Software Development Engineer, you will build and maintain production-quality distributed systems, develop tools to collect and rationalize data from multiple sources, partner with Networ

Software Engineer/Principal Software Engineer – Data Analyst on Northrop Grumman Aeronautics Systems, building enterprise toolsets to exploit large operational data sets for communication subsystems and advanced payloads. Day‑to‑day duties include developing Python/Java/C++/MATLAB solutions, maintaining CI/CD pipelines, and collaborating with Cloud, Networking, and DevSecOps teams.

Northrop Grumman Defense Systems (NGDS) is seeking a Software Engineer / Principal Software Engineer in Manhattan Beach, CA to develop and test mission planning systems. The role involves designing, developing, documenting, and debugging applications; maintaining CI/CD pipelines; setting up build and test environments; creating Windows installers; and supporting software integration and testing within a cross-functional scrum team.

AgentExchange Search & Personalization team at Salesforce builds AI-powered discovery engines that connect customers with agents, apps, and integrations. The Principal Engineer leads architectural design and delivery of multi-turn GenAI search, personalization services, and contextual discovery across the ecosystem, driving AI-native engineering and platform modernization.

Aeronautics Systems sector team at Northrop Grumman develops cutting‑edge software for advanced flight systems. The Software Engineer or Principal Software Engineer designs, develops, integrates, and tests autonomy algorithms, AI/ML models, and GPU‑accelerated simulations using C++, Python, and DevOps pipelines.

Application Software team at SpaceX builds mission‑critical platforms that accelerate vehicle software delivery, testing, and operations for Falcon 9, Starship, Dragon and Starlink. The Software Engineer, Site Reliability Engineering role designs, deploys, and scales these platforms, collaborates with engineers to create operable systems, and participates in on‑call rotation and incident response.

Data & ML Platform team builds and operates the compute platform for large‑scale data processing, simulation, auto‑labeling and model training. The role improves reliability and efficiency of Kubernetes infrastructure, creates self‑service onboarding, and develops reusable batch and workflow capabilities for petabyte‑scale workloads.

Northrop Grumman Defense Systems (NGDS) is seeking a Software Engineer / Principal Software Engineer to work on state-of-the-art Mission Planning systems in Manhattan Beach, CA. The role involves designing, developing, testing, and debugging application software and systems while maintaining CI/CD pipelines, setting up development environments, and creating Windows installers. You will work within a cross-functional scrum team, support automated and formal testing, interface technically with cus

Data Engineering – Data Infrastructure team at Plus 2 builds tools that surface the most valuable moments from petabytes of autonomous‑driving fleet data for model training and evaluation. The role develops mining, retrieval and ranking methods, builds distributed pipelines and end‑to‑end search products, and ships Python APIs, services and modern React interfaces.

AI Compilers team at Microsoft builds cutting‑edge compiler technologies and optimization passes for AI workloads. The role designs and implements new compiler features, code generation for emerging hardware, and AI‑specific programming abstractions while collaborating with hardware architects and ML developers.

Data Engineering – Data Infrastructure team at PlusAI builds the backbone for autonomous vehicle sensor data, ensuring reliable capture, transfer, and scalable access for analytics and machine learning. The Software Engineer/Senior Software Engineer designs high‑throughput C++ recording systems, creates Python data‑plane services, and evolves vehicle‑data formats and lakehouse APIs.

Muon Space is looking for a Flight Software Engineer to design, develop, and test embedded firmware for orbiting satellites, working with ARM Cortex-M CPUs and RTOS environments.

Platform team at Brain Corp builds the core software that powers autonomous mobile robots. The Staff Software Engineer leads architecture and re‑engineering of the Hardware Abstraction Layer, telemetry, and high‑performance C++ middleware, collaborating with hardware, autonomy and applications groups to ensure scalable, reliable robot deployments.

Network Software and Services for AI (nssAI) team at xAI builds cutting‑edge software, services, and frameworks to empower Network Development Engineers managing large GPU supercomputing fabrics. The Software Engineer develops metrics‑rich tools, automates provisioning, monitoring and remediation, and implements IaC best practices to ensure reliable, secure service delivery.