Top Software Engineer Jobs in Los Angeles, CA

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.

As a Senior Software Engineer at Whatnot, you'll build AI tooling for internal use, developing workflows and infrastructure to enhance software delivery. You'll collaborate across teams to gather feedback and prioritize features in a rapidly evolving landscape.

Build and architect frontend user interfaces for the Service Monetization Platform, focusing on acquisition and secure checkout. Collaborate with design, product, QA, and data teams to solve complex problems, optimize performance, and deliver features through end-to-end delivery, testing, and deployment in an Agile environment.

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.

As a Flight Software Engineer, you will assist in software development for flight computers, GNC algorithm integration, and spacecraft mission support, collaborating with teams on design and testing.

As a Flight Software Engineer III, you will lead software development for spacecraft systems, integrate GNC algorithms, and mentor junior engineers, contributing to innovative space technology solutions.

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, implement, integrate, test, and maintain spacecraft software models and hardware interface software for real-time satellite simulators/emulators. Support full software lifecycle, hardware integration, documentation (CDRLs), testbed collaboration, and end-user simulation operations in an agile CI/CD environment.

Design, develop, test, and maintain mission software (Java, C/C++, Python, ReactJS). Participate in agile lifecycle, system integration, architecture and requirements development, code reviews, debugging, verification/validation, and cross-discipline collaboration to meet safety, regulatory, and program objectives.

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.

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.

As a Staff Flight Software Engineer, you will assist in the software development cycle, integrate GNC algorithms, maintain command telemetry databases, and develop reusable driver libraries for flight hardware.

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.

Work with engineering to build APIs, backend services, and distributed event-driven applications supporting analytics and ML. Help design, build, and operate cloud-based systems, data pipelines, and scalable platform capabilities while collaborating with data teams.

Design, implement, and operate critical, highly scalable backend services (identity, friend graph, persistence). Collaborate across teams, build and test distributed systems, ensure availability and operational excellence, use AI tools to accelerate development, and participate in incident response and debugging.

Design, build, and maintain scalable, reliable full‑stack systems. Contribute to API and architecture design, write testable code, debug complex issues, improve performance, automate deployments, and mentor junior engineers while collaborating with cross‑functional teams.

Design, build, and maintain scalable, reliable systems and APIs across a primarily TypeScript stack. Deliver features independently, improve performance and observability, contribute to architecture and CI/CD, debug complex issues, and mentor junior engineers while collaborating with cross-functional teams.

Senior technical leader for fraud platforms responsible for architecture, resiliency, and scalable designs. Hands-on coding, solution decomposition, CI/CD, observability, test automation, incident RCA, and guiding multiple Agile teams for platform modernization and operational excellence.

Design, develop, test, and maintain full-stack web applications on AWS. Translate customer requirements into software architectures, participate in agile development, debug performance issues, implement engineering best practices, manage supplier performance, and ensure compliance with safety, regulatory, and security requirements.

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.

Develop and implement full stack features for a healthcare platform, focusing on both frontend (React) and backend (Node.js) development. Responsible for performance optimization, API creation, testing, and collaboration with data engineering teams.

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.