Top Staff Software Engineer Jobs in Los Angeles, CA

Lead technical vision and strategy for Affirm’s Cards backend engineering organization. Architect scalable and reliable platforms, guide cross-team initiatives, champion AI adoption and engineering excellence, influence technical roadmaps, and mentor engineers through Staff level. The role requires strong architectural expertise, organizational leadership, project management, communication, and cross-functional collaboration.

Design and implement experiments in browser engine subsystems, investigate DOM, layout, rendering, navigation, events, and execution behavior, and evaluate performance, correctness, and compatibility. Prototype new engine capabilities, instrument and profile browser behavior, develop repeatable tests, document results, and optimize validated improvements. Collaborate with technical leadership while using AI coding and analysis tools and verifying outputs through debugging, testing, and measurement.

Lead technical execution and architecture for the Loyalty product. Own roadmap, design distributed services and APIs, ensure reliability/observability, integrate with ZMP and AthenaOS, build and coach engineering teams, and drive cross-team delivery of scalable multi-tenant loyalty capabilities.

Set technical direction for Toast’s Developer Experience platform, including local development, build tooling, shared libraries, testing frameworks, and developer portals. The role combines hands-on software engineering with architecture, cross-team technical leadership, AI-assisted development, developer productivity measurement, mentorship, and roadmap prioritization.

Staff Software Engineer for the Job Seeker Apps team, building user-facing interfaces, backend systems, proactive communications, and AI assistant integrations. Responsibilities include end-to-end systems engineering, collaboration with Product and Decision Science, technical leadership and mentorship, impact measurement, and architecting safe, scalable agentic integrations. The role requires extensive software development experience and may involve ReactJS, TypeScript, data lake technologies, and distributed data processing frameworks.

Lead the technical evolution of Kilo Code, a large-scale VS Code AI coding extension. Responsibilities include setting architecture and performance direction, building advanced AI-assisted workflows, optimizing startup time and memory usage, driving cross-team initiatives, mentoring engineers, owning production delivery, and establishing engineering standards for context optimization and LLM workflows. The role partners with Product and Design to shape roadmaps and requires hands-on technical leadership across a mature codebase serving millions of users.

Lead the design and development of scalable .NET services and APIs for a real-time trading platform. Own systems through production, contribute to architecture and observability, support incident response, mentor engineers, and drive cross-team technical initiatives. Collaborate with product and design while occasionally contributing to React and TypeScript frontend development. Build reliable, high-throughput distributed systems and improve engineering standards, tooling, testing, and operational excellence.

Build and deploy software for electro-optical and infrared sensing systems across simulation, hardware-in-the-loop, and real-world field testing. Develop reusable sensor software, autonomous test infrastructure, simulation and replay tools, multi-sensor integration, and edge deployments. Troubleshoot live systems at test sites, monitor fielded software, and deliver rapid fixes. The role emphasizes Python, Linux, Docker, networking, CI, physical-system understanding, and reliable production engineering.

Lead architecture and engineering for a new Provider Onboarding team. Build scalable, database-backed systems and custom tools supporting pricing, payments, client panels, and forms. Establish engineering practices, mentor senior engineers, guide cross-functional delivery, and oversee the full software development lifecycle from planning through post-launch maintenance. The role requires healthcare systems experience and ownership of complex, reliable products.

Lead the technical direction of Samsara’s shared geospatial platform. Build scalable data ingestion and processing pipelines, map data models, spatial APIs, map-matching and routing foundations, and reusable platform capabilities. Scale storage, querying, and computation for real-time features, consolidate team-specific solutions, mentor engineers, lead cross-team technical projects, and represent the company in the geospatial community.

Lead fraud decisioning engineering initiatives by architecting, building, launching, and maintaining complex backend systems. Drive cross-functional projects from definition through monitoring, write high-quality and resilient code, review technical work, mentor engineers, collaborate with Product, ML, Analytics, and Business teams, and contribute to hiring and interview design.

Develop and maintain software integrations connecting Cribl’s stream processing engine with systems such as Splunk, Elasticsearch, Kafka, and cloud storage platforms. Research third-party technologies, build robust Node.js and TypeScript code, create automated and integration tests, and collaborate with engineering, product, design, and business teams. Participate in code reviews, documentation, customer support, and a 24/7 on-call rotation.

Build and ship new products from zero to one across backend services, APIs, data pipelines, AI-driven workflows, and React front ends. Partner with customers to prototype solutions, design experiments, analyze results, and guide product direction. Establish technical architecture and reusable standards, then scale successful prototypes into production systems. Collaborate with product, platform, data, and operations teams while using AI tools throughout development.

Lead the design, development, and operation of scalable backend and platform software for a Real World Evidence engine. Build secure data integrations and pipelines, improve data curation and quality, and support analytical workflows involving sensitive health data. Partner with product, clinical, research, and data teams to translate requirements into technical strategy. Lead architecture and code reviews, evaluate technologies, mentor engineers, and contribute to hiring and engineering best practices.

Lead technically complex card-acquiring payment projects from design through production. Build and operate highly reliable payment systems, integrations, testing and certification tooling, and shared engineering frameworks. Analyze ISO messages, network mandates, routing, authorization, clearing, settlement, and processing costs. Provide technical direction, mentor engineers, participate in on-call operations, and establish safe AI-assisted engineering practices for critical financial systems.

Build and operate Temporal Cloud’s managed compute platform, including autoscaling systems, multi-tenant execution services, cloud integrations, control and data plane boundaries, security controls, observability, and reliability practices. Lead API design, rollout, incident response, technical reviews, cross-team collaboration, and mentorship for production platform capabilities.

Lead full-stack development for Huntress’s SOC platform, building analyst-facing investigation, triage, remediation, queueing, and customer reporting experiences. Shape architecture, data models, interfaces, security practices, reliability, observability, and testing while mentoring engineers and partnering with Product, UX, and SOC stakeholders. The role emphasizes Ruby on Rails, modern frontend development, cloud infrastructure, relational databases, and technical leadership across complex cybersecurity software products.

Build and maintain a full-stack sewer inspection analysis platform using React, TypeScript, Node.js, PostgreSQL/PostGIS, AWS, computer vision, geospatial analysis, and Temporal.io. Responsibilities include developing interactive dashboards, scalable APIs, video-processing workflows, mapping and risk-assessment tools, microservices, cloud infrastructure, and automated testing and deployment pipelines.

Lead technical strategy and architecture for Nextdoor’s monetization platform, building scalable, reliable, secure systems for advertising and subscription products. Partner with Product, ML, Data Science, and Engineering teams to deliver complex initiatives. Improve engineering standards, observability, release safety, and developer productivity while remaining hands-on in implementation, debugging, launches, and production operations. Mentor senior engineers and develop technical leaders.

Leads technical vision and roadmap for Freenome’s cloud platform, designs and operates scalable Kubernetes-based systems, and drives cross-team initiatives. The role troubleshoots complex platform issues, improves reliability and cloud-cost efficiency, supports AI adoption, and builds secure infrastructure for AI and data workflows. It also mentors engineers, partners with scientific and technical teams, and remains hands-on with architecture, coding, design reviews, and operations.

Lead the technical direction of backend systems for a cybersecurity assessment platform. Design and build scalable services, APIs, data models, and event-driven workflows; make architecture and reliability decisions; write production code; improve observability and safe deployment practices; lead cross-team initiatives; mentor engineers; contribute to hiring; and translate customer and product goals into technical strategy.

Leads technical initiatives for Toast’s restaurant scheduling product, designing and delivering scalable full-stack software. Responsibilities include architecture, API and system design, roadmap influence, cross-functional collaboration, engineering quality, performance, and technical leadership. The role also promotes AI-assisted development and improved employee and customer experiences.

Design and build Temporal Cloud’s multi-cloud infrastructure platform across AWS, GCP, and Azure. Own platform architecture, declarative infrastructure modeling, Kubernetes reconciliation, deployment control planes, reliability, recovery, and safe production rollouts. Lead system design, roadmap development, incident response, technical reviews, coaching, hiring, and cross-team collaboration while continuing to write production code in Go or another systems language.

Lead strategically important software and platform initiatives for Vanta’s Growth organization. Design and build customer-facing SaaS capabilities using TypeScript, React, and Node.js; identify friction through customer research and product analytics; and guide multi-quarter efforts from architecture through adoption. Establish technical direction, coordinate dependencies across teams, coach engineers, and partner with Product, Design, Sales, and Customer Success to improve conversion, activation, time to value, retention, and expansion.

The Lead Rust Software Engineer will design and build scalable applications, mentor teams on Rust, and contribute to complex product development.