Software Engineer Jobs in Sunnyvale, CA

Design, develop, and maintain embedded software features for FortiGate/FortiSwitch switch-controller products. Fix bugs, optimize performance, implement high-quality features, perform code reviews, collaborate across teams, and document and communicate technical work.

Design, implement, and maintain cloud solutions and FortiWeb software. Fix bugs, develop new features, research new technologies, document and version-control code, and produce technical documentation.

Develop and maintain next-generation network security appliances: design, implement, and support Linux kernel and driver code for SoC-based systems and Broadcom/Marvell switch/PHY chips, build new features, and perform low-level debugging for firewall platform modules.

Design and implement secured enterprise wireless products. Perform Linux kernel and driver development for WiFi chipsets, implement WiFi security protocols, and contribute to network/system design, debugging, and feature development across the product lifecycle.

Design, develop, and execute wireless QA test plans and functional test cases for WLAN products. Find, document, track, and help resolve defects; automate and maintain test infrastructure; support integrated testing with cross-functional teams; debug root causes and optimize automation; report status to management.

Design, implement, and maintain embedded networking software for Ethernet switching products. Debug and fix existing code, collaborate with hardware teams, implement L2/L3 features, work with POSIX/System V multithreading, assist in system installation/troubleshooting, and produce high-quality, timely software.

Develop secured enterprise wireless products and features, including Linux kernel and driver work for WiFi chipsets, implementing WiFi security protocols, and contributing across the full software development cycle for enterprise wireless solutions.

Design, build, and enhance the FortiSASE platform focusing on scalability, reliability, AI-driven features, telemetry analytics, data persistence, and RESTful APIs. Collaborate with engineering, product, and operations teams to architect solutions, evaluate emerging AI/ML technologies, troubleshoot production issues, and drive MLOps and observability practices.

Design, execute and maintain functional and automated tests for high-end firewall and carrier networking products. Build and optimize virtual/hardware test environments, run CI/CD aligned testing, troubleshoot network and VM issues, document defects, and collaborate with developers and QA to validate new features.

Design, implement, maintain, and improve embedded software and core platform modules for firewall and networking appliances. Develop low-level components (device drivers, kernel modules, BSPs), optimize performance and reliability, collaborate with hardware and QA for board bring-up and validation, debug across hardware/software layers, follow secure coding practices, and participate in design, testing, CI, and long-term platform improvements.

Design and implement high-performance firewall and packet-processing modules for a virtualized/cloud environment. Own performance-critical kernel- and user-space code, prototype new technologies, and work with QA to resolve bugs.

Develop and maintain scalable, cloud-native networking and security software. Implement features, fix bugs, optimize management/control/dataplane systems, and collaborate with DevOps and QA to deliver high-quality, containerized products.

Develop, test, debug, and maintain Fortinet's GenAI/ML software systems. Implement new features, perform system integrations (cloud and on-prem), ensure code quality via source control, optimize existing systems, and document maintenance procedures while collaborating across teams.

Design, implement, and maintain scalable cloud-native networking and security software for a next-generation SASE platform. Fix bugs, optimize performance, collaborate with DevOps and QA, and deliver high-quality features for distributed, microservice-based systems.

Troubleshoot and resolve complex system-level issues across kernel-to-application layers, optimize OS performance, maintain OS-related software components, collaborate with hardware team for new platform delivery, and apply deep Linux kernel and networking expertise.

Design, develop, and execute functional, system, scaling, throughput, stress and soak tests. Create and maintain automated test scripts, find/isolate/document bugs, and track them to resolution. Diagnose and reproduce customer issues, engage in live troubleshooting, collaborate with developers and QAs, and produce documentation and training. Focused on networking, security, VoIP, and traffic-generator based testing.

Lead QA activities for security networking products: design and run tests, automate scripts and tools, debug and document issues, collaborate with developers and international teams, and produce training and process guidance to improve product quality and team efficiency.

Owner of CI and test-orchestration platform: design, build, and run CI/test services, developer-facing automation, encode quality gates, build observability and dashboards, participate in on-call rotations and incident triage, and lead cross-functional projects to improve release quality and developer experience.

Design and implement highly reliable, high-performance algorithms and systems software for modern data platforms. Own end-to-end delivery from concept to production, diagnose and resolve complex technical issues, influence cross-functional system design, and mentor junior engineers. Drive adherence to performance, reliability (e.g., six 9s), schedules, and architectural vision while collaborating with product and engineering teams.

Develop software tools for manufacturing execution, troubleshoot software issues on the production floor, and optimize production processes. Collaborate with production teams to enhance operational efficiency and write technical documentation.

Lead validation of ML datacenter stacks from cluster to rack scale for CSPs: define test strategies, reproduce and triage customer bugs, validate fixes, run perf benchmarks, manage test data and tooling, produce release-readiness reports, and collaborate with internal and partner engineering teams.

The Staff Software Engineer will architect and maintain Datagrid Pages and Dataset Editor, focusing on UI design, efficient code, and mentorship while collaborating with teams to support Procore's AI strategy.

Lead design and ownership of mission-critical web services and front-end infrastructure, architecting scalable Web-to-Edge systems using GCP. Drive React/Three.js-based high-performance UIs, mentor engineers, define long-term architecture, and ensure reliability of Fleet Management, Auth, and Core API services.

Build tools, libraries, and infrastructure to accelerate Planning development for autonomous vehicles. Improve testing, debugging, metrics, simulation, and evaluation workflows; expose actionable insights from logs and real-world data. Lead infrastructure projects, optimize performance and maintainability, and partner with Planning engineers to increase engineering velocity and safety-case/test coverage.

The Senior Software Engineer will develop Flutter mobile applications, integrate GraphQL APIs, mentor junior engineers, and contribute to architectural decisions for the Afero Hubspace smart home product.