Top Tech Jobs & Startup Jobs in Los Angeles, CA

Build and own a framework-agnostic charting engine core and its React binding: rendering layers, real-time data plumbing, indicator math, drawing tools, performance (60fps) discipline, visual testing, architectural leadership, mentoring, and integrations across web and mobile.

Senior SDET responsible for designing, building, and maintaining automated test coverage across web, API, and mobile platforms. Responsible for manual and automated validation, test planning, review of requirements, defect tracking, production validation, and improving QA processes. Collaborates with Engineering, Product, and QA to integrate tests into CI/CD, validate third-party integrations, and ensure release readiness and reliable feature delivery.

The Senior Software Full Stack Engineer will design and develop cloud-native applications, ensuring reliability and scalability while collaborating with product engineers and improving coding standards.

As a Software Engineer III, you'll build the Trader Experience platform, design applications, and ensure platform reliability while collaborating with engineering teams.

As a Senior Mobile Engineer, you'll lead the development of a mobile trading platform using React Native. Responsibilities include establishing mobile architecture, integrating with GraphQL APIs, mentoring engineers, and ensuring optimal performance. You'll also contribute to mobile-first thinking across teams.

The Associate Counsel, Technology will provide legal support on fintech, trading, and tech offerings, focusing on regulatory compliance in privacy and cybersecurity, and product development.

As a Senior Full Stack Engineer, you will design and build cloud-native applications, focus on performance and scalability, and ensure platform stability while collaborating with product teams.

As a Senior Full Stack Engineer, you'll design and build cloud-native applications for the payments platform, ensuring reliability and scalability. Collaborate with engineering teams to deliver solutions and maintain production systems.

Lead the mobile application strategy for iOS and Android at Topstep, focusing on user engagement, performance, and cross-functional collaboration in the Fintech space.

As a Senior Data Engineer, you'll design and maintain scalable data pipelines, optimize workflows with dbt and Snowflake, and mentor teams across functions to enhance data reliability and performance.