Top Software Engineer Jobs in Los Angeles, CA

Design, develop, and support reusable components, interactions, frameworks and SDKs for Spectacles AR glasses and SnapOS. Contribute to OS components, participate in code and design reviews, and collaborate with design, engineering, and product teams to launch performant, test-covered features.

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.

Build and independently deliver full-stack healthcare software features using Java or Groovy, React and TypeScript, MongoDB, and Kafka. Responsibilities include design, implementation, testing, deployment, production debugging, code reviews, design documentation, dependency coordination, process improvements, and mentoring. The role requires reliable delivery with minimal oversight and collaboration across engineering, product, and QA teams in a remote-first environment.

Develop and ship full-stack web and mobile experiences across Affirm’s consumer app and website. Collaborate with product, design, analytics, and engineering teams to break down projects, make technical decisions, write tested and extensible code, launch scalable APIs, monitor service health, support on-call operations, review code, and participate in team development and interviewing.

Build and scale consumer-facing mobile and web applications and backend services. Own features end-to-end across frontend and backend, optimize databases and queries, integrate third-party APIs, implement algorithms for risk and transaction evaluation, improve reliability and CI/CD, and contribute to testing, monitoring, and internal tools to support customer operations.

Develop and improve MongoDB’s distributed database networking and observability components. Responsibilities include writing production-level C++ code, enhancing performance, availability, scalability, and resource efficiency, integrating observability frameworks, leading medium-sized projects, collaborating across the product lifecycle, and participating in code reviews and technical design. The role requires strong software architecture fundamentals and an interest in networking, observability, and computer systems internals.

Lead the Android platform for Cash App Consumer Platform, building foundational infrastructure, shared libraries, architecture patterns, observability, performance tooling, and developer experiences used across the organization. Drive AI-native engineering practices and tools, identify cross-cutting technical problems, lead architecture reviews, mentor engineers, and collaborate across Android, iOS, web, backend, product, and design teams.

Build and own foundational Android platform infrastructure, shared libraries, frameworks, architecture, observability, performance tooling, and developer experience systems. Lead AI-native engineering practices, evaluate AI development tools, drive cross-organizational technical initiatives, mentor engineers, and establish scalable Android standards. Collaborate across mobile, web, backend, product, design, and leadership teams to improve engineering velocity and customer experiences.

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.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Develop scalable platforms, services, and internal tools for Revenue Cycle Management, supporting payments, claims submission, and operational workflows. Partner with engineering, product, design, operations, and business stakeholders to improve efficiency, reliability, and cost effectiveness. Drive software development through planning, execution, measurement, maintenance, and continuous improvement while supporting responsive, secure, and highly available systems.

Lead the technical direction, architecture, and operation of Snap’s omnichannel notification platform. Design scalable, highly available backend services, shared APIs, data models, orchestration, ranking, targeting, experimentation, and measurement systems. Drive cross-functional initiatives, improve reliability and observability, respond to incidents, develop technical roadmaps, mentor engineers, and influence architecture across teams.

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

Own the architecture and technical direction of Metropolis Recognition Platform, including edge-to-cloud pipelines, identity resolution, real-time decisioning, privacy and consent models, observability, and progressive delivery. Lead cross-functional alignment across engineering, computer vision, data, security, platform teams, and partners. Establish RFCs, SLOs, testing standards, operational practices, and architectural best practices while mentoring engineers and managing high-scale distributed systems.

Develop a platform for liquidity and loan collateralization. Responsibilities include building and integrating data pipelines, creating user experiences, and collaborating with teams for system design.

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.

Design and implement CIAM backend services for authentication and authorization. Integrate identity systems, manage secure flows, and automate infrastructure.

The software engineer will build full-stack features for Kora's voice AI agent, integrating data, refining prompts, and expanding multi-modal capabilities while mentoring peers and ensuring technical quality.

Develop and deploy full-stack applications supporting purchasing, manufacturing planning, scheduling, test-data analysis, and factory operations. Lead the software development lifecycle, collaborate with non-software stakeholders to define requirements, apply agile and continuous delivery practices, solve complex problems, and mentor engineers. The role involves building scalable platforms across front-end, services, analytics, industrial automation, and AI capabilities.

As a Video Engineer at Whatnot, you'll enhance the platform's video services, develop seller tools, and implement innovative video strategies to improve user engagement and experience.

As a Senior Software Engineer on the Logistics Platform team, you will enhance logistics systems by building APIs, improving data quality, and partnering with cross-functional teams to solve complex problems, ultimately improving user experiences and operational outcomes.

The role involves developing ML systems, designing low-latency infrastructure, and collaborating on AI/ML initiatives while ensuring reliability and performance at scale.

As a Software Engineer in Data, you will enhance core product experience, optimize integrations, manage data systems, and support scalable services.