Software Engineer Jobs in Sunnyvale, CA

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.

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.

Develop secured enterprise wireless products including Linux kernel and driver development for Wi‑Fi chipsets and implementation of Wi‑Fi security protocols. Collaborate with cross-functional teams, contribute to system design, and ensure high-quality, production-ready embedded software.

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 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.

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, 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.

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.

Develop secured enterprise wireless products and features, perform Linux kernel and driver development for WiFi chipsets, implement WiFi security protocols, participate across the software development lifecycle, and collaborate with a team of embedded software engineers to deliver product launches and features.

Senior engineering role to design, implement, and maintain networking software and core systems. Hands-on development, debugging, integration of 3rd-party and proprietary code, REST API work, multi-process/thread programming, and collaboration with cross-functional teams to deliver high-quality features on schedule.

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.

Design, build, and operate cross-team authentication, authorization, and platform frameworks. Improve performance, scalability, observability, CI/CD, and developer productivity. Lead multi-system initiatives, mentor engineers, and ensure secure, reliable, compliant platform services.

Lead architecture and technical direction for data integrations moving clinical and financial data at scale. Design orchestration, pipelines, data stores, observability, security/compliance, and mentor engineers while owning end-to-end cross-system initiatives and reliability.

Design and own an immutable, event-oriented accounts and ledgering system for RCM. Build idempotent posting/adjustment pipelines, reconcile billed charges, remittances, and bank deposits, ensure report consistency, operate money-critical Postgres systems, and set observability, security, and operational standards while mentoring senior engineers.

Build and maintain developer platforms, CI/CD automation, and high-availability solutions. Develop services and tooling in Python/Go/Rust, extend CI frameworks (e.g., Jenkins), apply Linux fundamentals, embed security into pipelines, drive capacity planning, automate vulnerability remediation, and implement observability, incident management, and on-call practices to improve delivery velocity and reliability.

Develop and deliver end-to-end software integrations in C/C++ across software and hardware for automotive systems. Collaborate with hardware and electrical teams, design and bring up test rigs, perform on-vehicle validation, debug and troubleshoot integrations to meet customer requirements.

Design and implement real-time embedded C software for vehicle platforms, integrate vendor components over vehicle buses (CAN, LIN, I2C, SPI, UART), support hardware bring-up and low-level SoC debugging, develop RTOS applications, and collaborate cross-functionally to productionize and maintain products.

Lead end-to-end design and delivery of backend, API, and authentication systems for a high-scale real-time calling platform. Architect APIs and auth models, write design docs, improve observability and DevEx, mentor engineers, collaborate with Product and Design, participate in on-call, and ensure reliability and performance.

Develop and maintain BIOS and firmware for CPU systems, ensuring software quality and reliability. Collaborate with hardware engineers and mentor junior engineers.

Develop and maintain Linux Kernel features for EOS, collaborate with hardware engineers, mentor juniors, and ensure quality deliverables.

Build and maintain the Claims Submissions system: clearinghouse integrations, claim generation (EDI, CMS-1500/1450, CDT), routing logic, scalable rule engine, end-to-end integration, architectural improvements, mentoring, code review, and production monitoring for high-volume RCM workflows.

Lead design, build, and scale full-stack features for the Insights practice management platform using React, Python, and PostgreSQL. Improve reliability, observability, performance, and availability. Collaborate with infra and backend teams, mentor engineers, conduct code reviews, and drive architectural improvements while delivering high-impact projects aligned with product and design.

Build LLM-powered automation and a scalable rule engine to autonomously fix denied claims. Design safety guardrails, observability, and QA gates; generate appeals and record packets; deliver an automations console and end-to-end integrations. Influence RCM platform architecture, mentor engineers, conduct code reviews, and operate production deployments.

Lead integration of learned models into the autonomous behavior planning stack. Collaborate with ML and autonomy teams to design, validate, monitor, and deploy learned planning components while ensuring safety, fallback strategies, debuggability, and production readiness. Mentor engineers and drive cross-functional technical designs using simulation, logs, and real-world data.