Top Software Engineer Jobs in Los Angeles, CA

Design and build large-scale systems for managing merchandise, ensuring data synchronization across platforms, and collaborating with cross-functional teams to support enterprise-level sellers.

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.

Design, implement, and maintain APIs, backend services, and front-end interfaces for mission planning and satellite/ground systems. Lead feature development across the full lifecycle in an Agile DevSecOps environment, emphasizing automation, testing, security, performance, and code quality. Support integration, CI/CD pipelines, and geospatial visualization for defense communications systems.

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.

The Software Engineer III will design, implement, and maintain scalable systems, collaborate with cross-functional teams, write clean code, and utilize AI tools effectively.

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.

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.

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.

Lead architecture, modernization, and development of Group Insurance applications. Modernize mainframe monoliths into Java microservices and micro-frontends on cloud, mentor distributed Agile teams, collaborate with enterprise architecture, product owners and infrastructure, and enable test automation and integrations. Approximately 10% domestic travel.

Build and optimize backend data pipelines and calculations for 7M+ securities using Python/Django. Implement Airflow pipelines, pandas/Celery-based async calculations, database query tuning, caching, scalable data models, incident investigation, code reviews, and cross-team collaboration to ensure timely, accurate financial data.

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.

Looking for a Software Engineer to build financial products and tooling for Cash App's Lending team, ensuring quality and compliance while collaborating across domains.

Build, operate, and scale backend systems for card issuing and transaction processing. Break down projects, collaborate with product and cross-functional teams, write tested extensible code, support monitoring and on-call operations, and participate in team growth activities including interviews.

Build and own end-to-end patient onboarding features that improve acquisition, registration, eligibility verification, and conversion. Partner with Product, Design, Analytics, and engineers to run experiments, ship scalable frontend/backend systems, optimize performance and resilience, and iterate based on data to improve patient outcomes.

Lead frontend-leaning full-stack implementation work for carrier and enterprise integrations: architect reusable UI and API layers, author RFCs, guide technical delivery, enforce testing and security best practices, and partner with cross-functional teams to scope and ship production integrations.

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.

Build and own Eve's marketing site and GTM engineering stack: integrate and optimize external tools, design AI agents for sales and marketing, implement webhooks and middleware to sync product/CRM data, and create programmatic campaigns and internal tools in partnership with Marketing, Sales, RevOps, and Product to drive growth and automation.

As a Senior Software Engineer in Trust & Safety, you'll analyze threats, design systems for abuse detection, and collaborate with teams to implement scalable defenses.

Design and implement secure, scalable backend services for voice agents, integrate AI models and telephony, improve inference, debug concurrent systems, and collaborate with Product to deliver features end-to-end.