Top Software Engineer Jobs in Los Angeles, CA

Design, develop, support, and optimize LensCore, Snap’s C++ AR engine for Specs, Snapchat Lenses, and Lens Studio. Collaborate with teams to deliver features to Lens creators, participate in planning, and create technical specifications. The role requires strong C++ development, rendering or 3D engine experience, AI-assisted development, and familiarity with scripting, Linux, and command-line tools.

Develop and ship high-performance iOS applications and camera experiences for Snapchat. Responsibilities include designing and implementing tested Objective-C software, launching features, evaluating technical tradeoffs, collaborating with Design, conducting code reviews, and using AI tools while maintaining strong standards for correctness, security, performance, and scalability.

Develop Android features and customer-facing mobile experiences from design through launch. Build smooth, stable, scalable products using Kotlin, Java, RxJava, Dagger, and AI-assisted engineering workflows. Evaluate technical tradeoffs, collaborate with design, conduct code reviews, and uphold standards for correctness, security, performance, and production quality.

Build and scale Java backend services, recommendation infrastructure, and data-processing pipelines for Taboola’s performance advertising platform. Design reliable microservices, search and event-driven systems handling billions of events and terabytes of data. Own services end to end, including production monitoring, incident response, root-cause analysis, and continuous improvement. Collaborate with product and architecture teams, manage integration projects, mentor engineers, and use AI-assisted development tools.

Own the architecture and stability of a shared core 3D CAD engine supporting multiple customer-specific products. Translate product requirements into scalable architecture, guide agentic software development, review AI-generated work, and lead customer-facing product engineering and enhancements. Collaborate across human and agent teams while maintaining mission-critical capabilities and supporting agentically generated designs.

Designs, develops, tests, integrates, debugs, and maintains non-embedded software for classified defense programs. Translates customer requirements into software architectures, interfaces, algorithms, and designs; supports system integration and lifecycle processes. The role also handles technical issues, improves development processes and metrics, conducts software research, and ensures compliance with quality, safety, regulatory, and customer standards. Work involves Java, ReactJS, DevOps tools, Agile methodologies, and classified-program environments.

Develop high-fidelity spacecraft simulation software in modern C++ and Python. Build multi-physics models covering spacecraft dynamics, thermal systems, attitude control, propulsion, power, sensors, and actuators. Implement solver architectures and time-stepping algorithms for real-time and faster-than-real-time simulation, maintain multi-language APIs, collaborate with engineering teams, and participate in code reviews and planning.

Develop and maintain low-latency backend components for a globally distributed advertising platform. Responsibilities include writing high-performance C++ or Rust code, designing systems, testing, reviewing code, supporting production services, troubleshooting performance issues, and collaborating across teams to deliver projects.

Defines and evolves software architectures for AR-based aerospace and mission systems. Leads architecture across embedded, real-time graphics, simulation, networking, cloud, edge, AI/ML, and aircraft integration. Establishes standards for secure, scalable, safety-critical software; supports DO-178 compliance, DevSecOps, CI/CD, containerization, and digital engineering. Collaborates with engineering, product, systems, and program teams on technical baselines, interfaces, verification, customer engagements, and proposals.

Architect, build, and optimize a full-stack platform using React.js, Node.js, GraphQL, REST APIs, and SQL databases. Lead technical decisions, performance optimization, observability, testing strategies, and cloud-based deployments. Mentor engineers, conduct design reviews, evaluate technologies, and drive initiatives across multiple teams while collaborating with product, QA, customers, and leadership.

Design and build full-stack web applications, backend APIs, data models, pipelines, developer tooling, and platforms for mission and flight software systems. Develop interfaces with flight software and simulations, support test automation and continuous deployment, and establish scalable engineering practices for a growing software organization.

The Senior Software Engineer will design and build scalable AI/ML backend systems, develop data pipelines, and collaborate with cross-functional teams to implement ML-driven features while ensuring system performance and documentation.