Top Senior Level Software Engineer Jobs in Los Angeles, CA

Design, implement, and iterate full-stack applications and services for an automated rocket factory platform. Build tools for planning, scheduling, data access/analysis, and operations; collaborate with non-software stakeholders; follow agile practices, CI/CD, and mentor other engineers.

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.

The Product Integration Lead will manage ad integrations for NBCUniversal's streaming applications, collaborating with engineering and product teams to optimize ad technology and troubleshoot issues. This role demands expert knowledge of ad serving systems and requires leadership in the integration processes across various platforms.

As a Software Integration Engineer, you'll develop and integrate complex software systems for space operations, drive technical excellence, and mentor engineers.

Design and implement low-latency, reusable data pipelines and real-time systems that produce tracking and pose data for AI-driven sports insights. Integrate computer-vision and event-detection algorithms, build performant cloud and on-premise services, create developer tools and frameworks, mentor teammates, and ensure scalable, autonomous systems with minimal manual intervention.

Design, build, and maintain blockchain and payments infrastructure; develop scalable microservices and secure RESTful APIs to transfer value across blockchain and banking protocols; integrate with banks and fintech; own system design, testing, deployment, and troubleshooting; ensure reliability, code quality, and strong test coverage while collaborating with product and engineering teams.

As a Senior Software Engineer, you will design and develop software solutions, maintain and debug programs, and ensure alignment with customer needs.

Build and own front-end features from concept through delivery for cybersecurity products. Collaborate with Product and Design to create intuitive UIs, improve engineering practices and tooling, simplify complex systems, and contribute to architecture and design systems. Use modern front-end tech (React, TypeScript) and AI-assisted tools to increase quality and delivery.

Design, implement, and optimize high-performance backend systems in Rust for an xOT security platform. Participate across the development lifecycle—debugging, testing, and performance tuning—while integrating relational and NoSQL data stores, microservices, third-party devices, and AI tools. Provide technical leadership, code review feedback, and promote secure, reliable, observable distributed systems.

Lead and mentor a team of UI engineers to define and execute the Dragos Platform UI vision. Collaborate with Tech Leads and Product Managers to deliver consistent user experiences, establish front-end best practices and performance optimizations, support production deployments, and balance delivery, quality, technical debt, and team career development across product teams.

As a Senior Software Engineer, you will enhance data pipelines, integrate with EHR systems, and mentor fellow engineers while ensuring scalable and reliable solutions for health technology.

Drive front-end development for customer-facing web and mobile experiences. Lead feature delivery from concept to production using React, Next.js, TypeScript, Svelte, and Tailwind. Troubleshoot integrations, write unit and integration tests, produce technical documentation, collaborate with product/design/data, and use AI tooling (preferably Claude) to accelerate design and implementation.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

Design, build, and operate scalable AWS-based backend services and APIs for the Collectors Vault. Own architecture and delivery, improve performance and reliability, mentor engineers, and leverage modern AI tools to accelerate development and engineering velocity.