Top Staff Software Engineer Jobs in Los Angeles, CA

Build scalable backend infrastructure and innovative advertising formats for Snap’s performance advertising platform. Lead end-to-end experimentation, optimization, and delivery of ads products, while ensuring availability, scalability, operational excellence, and cost efficiency. Collaborate across teams to evaluate trade-offs, solve ambiguous problems, provide company-wide technical direction, and mentor engineers. The role requires extensive software development experience, technical leadership, and expertise operating highly available systems at scale.

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.

Leads technical strategy and architecture for a scalable advertising platform supporting video, server-side advertising, connected TV, programmatic advertising, and new ad formats. Designs distributed systems, evaluates ad technologies, improves reliability and observability, partners across engineering and product teams, mentors engineers, and guides long-term technical investments and roadmaps.

Staff Software Engineer responsible for designing scalable distributed systems and full-stack web applications supporting provider acquisition, onboarding, and marketplace supply growth. The role leads cross-team technical initiatives, shapes engineering strategy, mentors developers, and delivers provider-facing products from discovery through post-launch support. Experience with AI-assisted development workflows and technologies such as Node.js, React, TypeScript, Kafka, AWS, Docker, and Kubernetes is valued.

Design, implement, operate, and improve highly available backend services and distributed systems at significant scale. Collaborate across teams to deliver product solutions, test and debug code, and promote availability, scalability, operational excellence, security, and cost management. Investigate incidents, provide technical leadership, and use AI-assisted engineering workflows while maintaining production-quality standards.

Design and evolve scalable referral, partner data, and patient booking systems. Lead complex technical projects across teams, make architecture and API decisions, improve security, performance, reliability, and scalability, and mentor engineers. Collaborate with product, design, engineering leadership, partners, and stakeholders while using AI-assisted development tools such as Claude Code to improve delivery velocity and quality.

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.

Lead the technical vision, architecture, and delivery of Toast’s pricing engine across multiple teams. Design and operate highly available distributed systems, APIs, databases, and event-driven services at scale. Serve as the pricing domain expert, improve correctness and performance, lead incident response and reliability initiatives, mentor engineers, establish operational excellence, and align technical priorities with Product and engineering leadership.

Lead backend engineering strategy for Affirm’s search and recommendation platform. Design and launch highly available distributed systems, guide technical architecture and execution, improve team operations and reliability, establish engineering quality standards, collaborate with product, design, and analytics, and mentor engineers. The role focuses on search, recommendations, consumer shopping experiences, monetization, and scalable platform foundations.

Lead backend engineering strategy for Affirm’s international Identity team. Design and launch highly available distributed systems supporting KYC, user lifecycle management, and identity decisioning. Drive technical planning, cross-functional collaboration, operational excellence, monitoring, testing, and on-call readiness. Establish engineering quality standards, influence architecture, mentor team members, and deliver scalable systems using Python or Kotlin, AWS, MySQL, Spark, and Kubernetes.

Build and operate enterprise-grade backend microservices, data pipelines, integrations, and internal tools for finance automation. Productionize AI and agentic workflows, design event-driven systems across billing, ERP, Salesforce, and data platforms, and develop lightweight operator UIs. Own technical strategy, architecture, reliability, auditability, permissions, and enterprise controls including SOX and PCI requirements. Collaborate with Finance, Security, Compliance, and Audit teams to deliver scalable automation solutions.

Lead technical strategy and execution for foundational Trust and Safety systems supporting consumer risk and credit reporting. Design and operate highly available backend systems, improve reliability and monitoring, establish engineering standards, guide complex cross-functional initiatives, and mentor engineers. The role involves ownership of system architecture, technical planning, operational readiness, code quality, and team development.

Lead the design, development, and delivery of scalable payroll onboarding software. Drive technically complex initiatives, influence architecture and roadmaps, collaborate across product, design, and engineering, improve reliability, promote coding best practices, mentor engineers, and use AI tools to enhance development productivity.

Lead the technical vision and architectural evolution of Huntress’s Core Platform. Build complex Ruby on Rails features, solve scaling challenges, manage cross-team dependencies, drive architectural decisions, and oversee system lifecycle and technical risk. Mentor engineers, establish engineering excellence, collaborate with managers and product leaders, and help teams adopt AI coding tools responsibly.

Design and implement scalable, secure, high-performance software systems and public-facing APIs. Lead system design, apply agentic coding workflows, collaborate with Product and Data Science, mentor engineers, and own initiatives improving efficiency, performance, and customer satisfaction. The role requires extensive experience with highly available distributed systems, API versioning and rate limiting, modern backend and frontend technologies, AWS, and Domain-Driven Design.

Designs, builds, and ships scalable full-stack features for Toast’s restaurant and retail technology platform. Responsibilities include developing resilient backend services and APIs, responsive web interfaces, distributed systems, and high-throughput enterprise solutions using Java, Kotlin, React, and TypeScript. The role requires solving ambiguous technical problems, ensuring system reliability and observability, applying engineering best practices, collaborating cross-functionally, and mentoring engineers.

Lead the design, development, testing, and optimization of embedded firmware for battery management, charging, motor control, and other high-voltage systems. Responsibilities include bare-metal and RTOS development, multicore software architecture, low-power modes, hardware bring-up, debugging, SIL/HIL validation, ISO 26262 compliance, and test automation. The role requires collaboration across electrical, systems, and software engineering teams throughout program development.

Lead the technical roadmap for partner integrations across APIs, SDKs, and web experiences. Design and build scalable products, standardize external partner integrations, and deliver payment and data-sharing capabilities. Collaborate with Engineering, Product, Design, Infrastructure, Sales, Partner, and Customer Success teams while remaining hands-on. Drive architecture, code quality, delivery, stakeholder alignment, and technical strategy for high-impact fintech products.

Develop and test flight software for spacecraft, including onboard computers, GNC algorithm integration, command and telemetry systems, spacecraft sequencing, subsystem simulators, device drivers, and communications libraries. Collaborate with ground software teams across spacecraft design, manufacturing, integration, and flight operations. The role requires low-level firmware, embedded RTOS, safety-critical systems, C/C++, Python, and eligibility for TS/SCI clearance.

Lead software engineering for the Patient Onboarding team, building and improving registration, insurance verification, and care-access workflows. Write full-stack production code, lead complex cross-team initiatives, shape technical direction, improve engineering foundations, and support modern AI-enabled development practices. Collaborate with Product, Design, Analytics, and Engineering to improve patient conversion and system reliability.

Designs, builds, and scales backend services and integrations for payments, billing, identity, and partner connectivity. Sets technical vision and architecture for distributed systems, leads cross-team delivery, manages production rollouts, builds fault-tolerant services and data pipelines, and mentors engineers. The role partners with product, design, and engineering teams to deliver frequent, reliable improvements for Flex’s rent payment platform.

Build and own full-stack MarTech services, scalable APIs, event-driven systems, data pipelines, and customer-facing web experiences. Integrate advertising, analytics, messaging, and marketing platforms while supporting attribution, identity resolution, experimentation, acquisition, and retention. Collaborate cross-functionally with marketing, product, data, design, and engineering teams to launch measurable growth initiatives. Mentor engineers and establish technical best practices across high-scale marketing infrastructure.

Lead technical efforts to build and maintain applications, mentor engineers, manage complex projects, and improve technology quality in healthcare.

Lead technical strategy and hands-on development for Snap’s storage, caching, identity, and service infrastructure. Design and operate highly available distributed systems across AWS and GCP, drive multi-quarter initiatives, improve reliability, scalability, performance, cost efficiency, observability, and developer experience, and influence architecture across infrastructure and product teams. Mentor engineers, resolve complex technical challenges, and shape responsible AI applications for platform quality and engineering productivity.

Staff Software Engineer responsible for designing, developing, and leading high-volume, low-latency ad-serving runtime systems. The role focuses on scalability, performance, fault tolerance, distributed systems, bid optimization, self-healing architecture, and full software lifecycle ownership. Responsibilities include technical leadership, design reviews, code reviews, bug triage, root-cause analysis, cross-functional collaboration, and guiding projects involving multiple engineers.