Top Software Engineer Jobs in Los Angeles, CA

Design, implement, test, and maintain real-time/near-real-time software simulation models and system-level simulators for satellite mission rehearsal and operator training. Translate customer requirements, integrate and debug simulation scenarios, collaborate with multidisciplinary teams, and create automation tools for configuration and deployments in an agile CI/CD environment.

Design, implement, integrate, test, and maintain real-time satellite software models and hardware interface software for system-level simulators/emulators. Support software/hardware integration, produce design and test artifacts, collaborate with STE hardware teams, and provide simulation operation and maintenance support in an agile CI/CD environment.

Design, develop, and maintain client-side, server-side, and desktop applications for mission-critical satellite systems. Build APIs and web services, optimize performance and scalability, troubleshoot and upgrade complex applications, write tests and documentation, participate in code reviews, and collaborate with cross-functional engineers to integrate spacecraft communication data.

As a Senior Flight Software Engineer, you'll design and implement flight software for deep-space missions, ensuring integration with spacecraft hardware and supporting verification processes for mission success.

The Staff Flight Software Engineer will design and develop flight-critical software for spacecraft, ensuring integration and operational success. Responsibilities include full lifecycle software development, collaboration with various teams, and support for testing and mission simulations.

Design and implement Android features from design through launch, optimize mobile UX and performance, perform code reviews, evaluate technical tradeoffs, and use AI tools to streamline development while maintaining security and production-quality code.

Build and optimize client-side applications and front-end features using modern JavaScript. Improve pricing and dealer integrations, ensure cross-browser compatibility and performance, coordinate technical design through deployment, and collaborate with product, design, and engineering teams.

Design and optimize 3D rendering engine features for AR devices. Implement and collaborate on rendering algorithms for mobile GPUs, research advanced effects, and profile/optimize for wearable performance across Lenses, Games, and Spectacles.

The Software Engineer II will develop AI capabilities, implement workflows, manage integrations with LLM providers, and enhance the TrakSYS platform while ensuring security and reliability.

Design, architect, implement, and optimize high-performance iOS camera features (primarily Objective-C). Develop and launch stable mobile features, collaborate with Design, perform code reviews, and leverage AI tools responsibly to accelerate development while ensuring performance, security, and production quality.

Design, implement, and optimize high-performance iOS features and apps using Objective-C and related technologies. Work with design teams, conduct code reviews, evaluate tradeoffs, leverage AI tools to accelerate development, and ensure performance, multithreading, and low-power optimizations for Snapchat's camera experiences.

Design, build, and optimize full-stack mobile and desktop web applications. Implement user interfaces, contribute to shared libraries, log and analyze metrics, use AI tools to accelerate development, and maintain high standards for code correctness, security, testing, performance, and scalability.

Design, implement, and optimize full‑stack web and mobile applications. Ship scalable, production‑ready features and UI components, improve performance and reliability, contribute to shared libraries, and use AI tools and metrics to inform development.

Design, implement, and operate critical, highly scalable backend services (identity, friend graph, persistence). Collaborate across teams, ensure availability, scalability, operational excellence, and cost management. Build, test, debug, and participate in incident resolution while leveraging AI tools to accelerate development and maintain secure, production-ready code.

Design, implement, and operate scalable ads delivery backend services. Own serving-time systems, collaborate with Product/ML/Infra, ensure availability and efficiency, use observability and automation, and apply AI-assisted workflows to ship production-quality code and optimize platform architecture.

Senior Software Engineer responsible for owning and supporting the MCA international cash management platform. Duties include COBOL development, mainframe application support, Oracle Database and Linux administration, monitoring with Dynatrace, incident and change management via ServiceNow, vendor coordination (including Oracle Flexcube), troubleshooting production issues, delivering enhancements, and participating in Agile delivery to ensure platform reliability and regulatory compliance.

Boeing seeks a Software Engineer to develop and maintain software products, resolve issues, and ensure reliability, focusing on BDS classified programs.

The Software Engineer develops, maintains, and optimizes software products, supports system integration, and ensures reliability through debugging while collaborating in a dynamic team environment.

The role involves leading application performance improvements across multiple platforms, focusing on measurable metrics and driving engineering standards and workflow optimization, using both hands-on coding and strategic influence.

As a Software Engineer, you'll develop software using Ruby, Javascript, and support AWS infrastructure. Responsibilities include maintaining and building applications, contributing to high-end software releases, and mentoring other engineers.

The Software Engineer will enhance Lending products for Cash App, focusing on building complex systems, APIs, and collaborating with multiple teams to support economic empowerment through accessible credit.

The role involves designing and implementing simulation software for spacecraft using C++ and collaborating on algorithms for orbital mechanics and control.

Lead full‑stack design and delivery of customer-facing web experiences (Browse, Navigate, Preview). Own architecture, APIs, data models, rollouts, observability, on‑call readiness, and cross-team alignment, using approved AI-assisted workflows while ensuring technical quality and reliability.

Lead UI architecture and design for responsive web applications; build reusable components with Angular/React/Vue and TypeScript/JavaScript; integrate UIs with RESTful microservices; enforce accessibility, security, testing, and CI/CD standards; mentor developers and collaborate with UX, backend, and DevOps teams in Agile environments.

The Backend Software Engineer will develop data ingestion pipelines, implement observability tools, and provide technical support while improving team collaboration.