Top Staff Software Engineer Jobs in Los Angeles, CA

Lead architecture and hands-on implementation of a full-stack platform and production AI systems (LLM integration, RAG, agentic workflows). Ship user-facing features across frontend, backend, data pipelines, infrastructure, testing, and monitoring. Set technical direction, tooling, and engineering practices while partnering with product and program teams.

Own and build backend software connecting robotics, ML inference, data platform, and digital twin. Develop APIs, user-facing apps, CRUD services, and visualization. Deploy and maintain software on edge and cloud, integrate with ROS, and collaborate with robotics, data, ML, and infrastructure teams to improve observability and developer tooling.

Senior individual-contributor full-stack engineer who designs, builds, and ships end-to-end product features. Leads technical direction, modernizes legacy systems, debugs distributed systems, owns production reliability and on-call, and mentors engineers. Drives AI-native development adoption while collaborating with Product and Design and improving team practices, observability, testing, and deployment workflows.

Design and implement full‑stack, low‑latency web-based Ground Control Station and C2 systems (map-centric UIs, real-time telemetry, video streaming), lead architecture and APIs, mentor engineers, support field tests and mission deployments, and ensure interoperability with C2 standards.

Lead the design of distributed systems, drive large initiatives, and enhance technical architecture at Whatnot, fostering rapid growth and stability.

The Staff Software Engineer will develop and execute technical strategies for Cash App Banking, lead architectural decisions, and mentor engineers, focusing on innovative financial solutions.

Lead cross-pod technical direction and system design for high-scale backend services, embed AI-native development practices, collaborate with product and design, mentor engineers, and drive ambiguous initiatives from design through production.

The Staff Software Engineer will lead technical strategy, ensure system availability, and develop backend systems at scale, collaborating across teams to drive capacity modeling and operational quality.

The Engineering Manager for Developer Productivity will lead a remote team to enhance developer productivity, focusing on AI integration, tooling evaluation, and team development while collaborating with cross-functional partners.

As a Staff Software Engineer, you will lead technical strategies, drive architectural decisions, mentor engineers, and develop consumer banking solutions using various technologies.

The role focuses on developing software for optical terminal processors, including device drivers and communication subsystems, while debugging and performing fault recovery for integration issues with hardware.

Own architecture and delivery of core ledger and transaction processing systems. Design and build highly available, high-performance backend services, drive cross-team technical initiatives, establish platform standards, mentor engineers, and embed AI to improve operations and workflows.

Design, build, and operate backend systems for prediction markets, including order management, trade matching, settlement, and market resolution. Architect distributed, low-latency systems with strict financial correctness, lead multi-quarter technical projects, mentor engineers, and collaborate with Product, Compliance, and Risk to meet regulatory requirements.

Develop ML/RL models and infrastructure for AV simulations, optimize training loops, and support project timelines in autonomous vehicle tech.

Lead technical strategy and delivery for backend marketplace/search systems. Collaborate with PM, design, and analytics; own operational reliability, monitoring, on-call, testing, and runbooks; set code/design standards; drive major feature delivery and deprecations; mentor and develop engineering talent.

Design, build, and maintain high-throughput data ingestion and processing pipelines; integrate AI-powered infrastructure; implement and support complex computing algorithms and distributed services; own systems end-to-end including architecture, observability, reliability, and operational support; lead architectural initiatives and reduce system complexity while maintaining performance on large-scale real-time data.

Serve as the technical IC leader for the Provider organization: set technical roadmap and engineering standards, design and review architectures, drive cross-team initiatives, mentor engineers, and deliver high-throughput, low-latency, cloud-based microservice systems for provider-focused products.

Lead design and delivery of complex web and mobile product areas, build and maintain React/React Native applications, architect scalable systems and APIs, optimize databases and performance, drive engineering standards and test coverage, mentor engineers, and collaborate with leadership and stakeholders in a fully remote environment.

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 technical strategy and execution for a backend ledger team building highly available, audit-grade financial systems. Drive architecture, reliability, monitoring, on-call practices, code quality, cross-functional collaboration, and mentoring to ensure accurate, scalable ledger operations.

Design and develop features for parallel and distributed SQL query engines, focusing on query federation, optimization, performance, and scalability. Collaborate with open source communities, lead cross-functional efforts, and mentor junior engineers to deliver cloud-native data platform solutions.

Design and build scalable integrations between Commure and third-party healthcare systems (EHRs/insurers), leverage LLMs to interpret EHR data, ensure HL7/FHIR/HIPAA compliance, own end-to-end workflows, troubleshoot and optimize production reliability, mentor junior engineers, and drive integration platform architecture and monitoring.

Join the MongoDB Server Query Optimization team to build a distributed open-source query optimizer, focusing on enhancing query performance and robustness. Responsibilities include innovation in flexible schema databases, mentoring team members, and contributing to the technical roadmap based on extensive experience in the database domain.

Lead the Mapping Engineering team as a Staff Software Engineer, focusing on designing scalable distributed backend systems for autonomous vehicle mapping, collaborating with cross-functional teams, and mentoring engineers.