Top Staff Engineer Jobs in Los Angeles, CA

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.

Design, architect, and implement high-performance iOS applications for Snapchat’s camera experiences. Develop and launch stable, scalable features using Objective-C, optimize mobile performance and multithreading, conduct code reviews, evaluate technical tradeoffs, collaborate with Design, and apply AI-assisted engineering workflows while maintaining code quality, security, and architectural integrity.

Leads company-wide precision cleaning, contamination control, passivation, and special-process reliability for rocket hardware. Establishes process standards, qualification and validation frameworks, cleanliness criteria, inspection methods, technician certification, and governance. Scales clean-line capabilities from development through production, resolves complex contamination issues, leads root-cause investigations and corrective actions, and influences cross-functional engineering and manufacturing decisions while mentoring technical teams.

Own the architecture and technical direction of Metropolis Recognition Platform, including edge-to-cloud pipelines, identity resolution, real-time decisioning, privacy and consent models, observability, and progressive delivery. Lead cross-functional alignment across engineering, computer vision, data, security, platform teams, and partners. Establish RFCs, SLOs, testing standards, operational practices, and architectural best practices while mentoring engineers and managing high-scale distributed systems.

Lead the architecture, development, customization, and integration of NetSuite finance systems supporting accounting, Order-to-Cash, and Record-to-Report processes. Partner with Finance, Accounting, Tax, Treasury, Audit, and Data Engineering teams to implement controls, improve close processes, enhance reporting, ensure SOX and GAAP compliance, and manage integrations. Establish NetSuite engineering standards, mentor engineers, oversee data governance, and provide technical leadership for scalable finance technology solutions.

Leads architecture and requirements development for space-based EO/IR payloads, performs optical modeling and analysis, and verifies and tests optical hardware and subsystems. Collaborates with external suppliers and senior customer stakeholders to resolve multidisciplinary technical challenges and support the transition from design through hardware delivery.

Leads mechanical integration and testing of space flight hardware from subassemblies through complete systems. Responsibilities include work-package procurement, manufacturing, test design, procedure development, anomaly resolution, nonconformance remediation, cross-functional coordination, cost and schedule ownership, and technical execution. The role operates in a restricted aerospace production environment and requires leadership, planning, stakeholder coordination, and active Top Secret/SCI clearance with CI polygraph.

Lead manufacturing engineering for rocket primary structures, providing design-for-manufacturing feedback, supporting prototype and flight builds, resolving shop-floor production barriers, and improving assembly processes. Create work instructions, specifications, and standardized best practices across multiple work centers. Collaborate with design, manufacturing, reliability, production, and vendor teams while applying expertise in structures assembly, machining, drilling, trimming, fastening, inspection, and GD&T.

Lead turbomachinery design and analysis for rocket turbopumps, advancing turbine technology for space. Perform aerodynamic and structural analyses, LCF/HCF assessments, and support turbopump assembly, testing, and manufacturing integration. Drive projects from concept through development, collaborate across multidisciplinary teams, and support test campaigns and flight development.

Leads the design, analysis, testing, and integration of spacecraft electrical power systems, including solar arrays, batteries, power distribution, converters, protection, and power budgets. Owns architecture trades, modeling, design reviews, radiation and reliability analyses, validation campaigns, EGSE, and environmental testing. Collaborates across engineering teams, develops technical documentation, mentors engineers, and ensures high-reliability power systems meet mission requirements.

Lead the development of an AI-powered platform for senior mental health, building systems for patient experience, and mentoring the engineering team.

Build the core AI platform for an AI-native trading experience. Develop a high-performance Rust backend supporting streaming responses, low-latency tool execution, caching, and model orchestration. Design secure, observable APIs and runtime components with authentication, authorization, rate limiting, auditing, tracing, retries, and fallbacks. Build safe trading action infrastructure with deterministic previews, confirmations, idempotency, and audit logs while partnering with product and frontend teams.

Leads development of resilient, scalable features across Toast’s enterprise Sports and Entertainment platform, including backend, frontend, and POS systems. Responsibilities include designing, deploying, testing, monitoring, and maintaining production services; leading complex technical projects; collaborating with Product, Design, Customer Success, Sales, and other teams; mentoring engineers; and using AI tools to improve development productivity.

Develop state estimation and navigation algorithms for autonomous systems operating in GPS-denied environments. Build production-grade C++ software for embedded Linux robotic platforms, create modeling and simulation tools, and implement comprehensive testing and validation. Collaborate on roadmap planning and agile execution while improving benchmarking and performance-analysis pipelines. The role requires professional C++ expertise, state estimation algorithm experience, sensor-fusion familiarity, and the ability to deploy reliable autonomy software.

Design, build, and own scalable microservices and secure APIs that transfer value across blockchain and banking protocols. Extend in-house blockchain infrastructure, integrate with banks and cloud services, troubleshoot production issues, document system and testing procedures, and collaborate with product and engineering teams to deliver reliable payment experiences.

Build and architect Clear Street Active, a high-performance trading platform for active traders. Develop responsive web interfaces integrating real-time market data, low-latency execution workflows, and advanced trading tools. Collaborate with cross-functional teams on large-scale initiatives while emphasizing scalability, performance, API quality, maintainability, and developer experience.

Leads delivery of complex software features for desktop utility design tools, translating ambiguous requirements into technical plans and managing performance, correctness, and reliability. Establishes architecture, coding standards, CI/CD and AI-assisted development practices; mentors engineers and leads design and code reviews. Partners with product, QA, delivery, and customers to create reusable solutions, contribute to roadmaps, and represent the team in architecture discussions.

Build scalable, privacy-safe advertising signals and measurement systems for Snap’s ad platform. Lead end-to-end software and infrastructure initiatives involving signal ingestion, identity matching, data pipelines, measurement, and advertiser ROI analysis. Provide technical direction across teams, optimize availability, scalability, performance, security, and cost, and collaborate with product, machine learning, and advertising partners. Mentor engineers and apply modern AI-assisted development practices while delivering reliable production services.

Lead architecture and technical strategy for a remote engineering organization building a React, Node.js, PostgreSQL, and AWS platform. Mentor engineers, establish engineering standards, drive JavaScript-to-TypeScript migration, design ETL and AI/LLM integration systems, resolve technical debt, and oversee technical design reviews, production support, incident response, hiring, and delivery. Partner with product, clinical, and business stakeholders to build scalable, reliable software.

Designs, builds, and deploys classified IT infrastructure for U.S. Government programs through TS/SCI and SAP levels. Responsibilities span facility readiness, power and cooling, rack and cabling design, servers, networks, storage, virtualization, cryptographic devices, physical security, testing, troubleshooting, documentation, and RMF/ATO evidence. The role requires extensive hands-on work in SCIFs, SAPFs, data centers, and construction environments, coordination with facilities and contractors, and up to 50% travel.

Build and lead development of full-stack digital engineering software serving as systems of record for product, manufacturing, and operations data. Design domain models, APIs, integrations, event-driven workflows, migrations, and production infrastructure with strong traceability, observability, security, and auditability. Mentor engineers, set technical direction, collaborate with engineering and manufacturing users, and support reliable software operations in an aerospace and national security environment.

Build and maintain cloud-native infrastructure, automate manual operations, develop Terraform modules and Helm charts, manage Kubernetes and service mesh configurations, monitor GCP databases and services, improve observability, maintain CI/CD pipelines, and use AI coding agents to enhance infrastructure development. Collaborate with engineering teams on instrumentation, architecture, capacity planning, scalability, reliability, security, and developer experience.

Leads architecture and technical direction for scalable, high-availability software services. Owns complex, multi-team initiatives, makes autonomous technical decisions, partners cross-functionally, mentors engineers, establishes standards, and advocates for quality. The role develops mission-critical systems supporting millions of endpoints and requires deep Java expertise, scalable system design, API development, relational databases, and strong testing practices.

Design, analyze, build, and test propulsion systems for advanced spacecraft from concept through flight. Provide technical leadership and mentorship, review models and drawings, lead multidisciplinary design validation, support propulsion testing and vehicle checkouts, and present technical content to customers. The role requires extensive launch or space vehicle experience, fluid system expertise, and the ability to lead complex propulsion development in a fast-paced environment.

Lead end-to-end development of reliable care-agent tooling and software services integrating contact-center platforms with backend systems. Own architecture, performance, security, production operations, and technical direction while partnering with product, care operations, QA, and engineering teams. Translate operational workflows into scalable solutions, mentor engineers, and improve tools using agent feedback, operational metrics, and AI-assisted development practices.