Top Senior Level Software Engineer Jobs in Los Angeles, CA

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.

Develop and maintain a globally distributed advertising server and buying platform. Responsibilities include full-stack design, coding, testing, releases, production support, code reviews, technical planning, troubleshooting, and collaboration across teams. The role requires Java backend development, asynchronous programming, database and SQL expertise, algorithmic problem-solving, and management of competing priorities. Ad technology and header bidding experience are preferred.

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.

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.

Leads multiple software engineering teams and managers responsible for scaling B2B SaaS products. The role combines people management, technical leadership, recruiting, mentoring, performance development, and engineering culture improvement. Responsibilities include promoting software quality, automated testing, CI/CD, DevOps, Agile practices, and cross-functional collaboration with product, QA, security, sales, marketing, HR, and customer success teams.

Embed with customers to integrate and deploy Revel's platform: write production code, connect to hardware (sensors, actuators, test stands), build dashboards, troubleshoot in-field, translate feedback to product, and partner with internal teams. Requires frequent travel (30–50%) and deep technical customer relationships.

Design, build, and operate enterprise applications, APIs, integrations, and distributed event-driven systems using C#/.NET, React, cloud platforms, and messaging technologies. Integrate business systems, implement resilient architectural patterns, add AI capabilities, and support CI/CD, observability, security, and production troubleshooting. Collaborate with stakeholders and engineers, contribute to technical standards, lead projects when needed, and deliver reliable solutions across engineering, manufacturing, supply chain, and finance functions.

Leads enterprise software architecture across Red 6’s AR defense products and future platforms. Defines architecture roadmaps, governance, engineering standards, modernization initiatives, and secure cloud, edge, embedded, real-time, AI/ML, simulation, and mission software architectures. Partners with engineering, product, systems, program, and executive teams; guides integrated hardware/software systems, aircraft and avionics integration, digital engineering, risk mitigation, customer engagements, staffing, and mentorship. Ensures scalable, secure, reliable, maintainable, and mission-ready software ecosystems.

Lead the Discovery Platform team, overseeing the development of scalable, high-performance systems for retrieval and ranking to enhance the user experience in Whatnot's live social marketplace.

Lead a compliance and risk engineering pillar to design, deliver, and operate regulatory automation, AI/ML, and risk-control platforms. Own roadmap, reliability, incident and defect management, stakeholder communication with Legal/Cyber/Compliance, and hiring and growth of software and quality engineering teams across global jurisdictions.