Software Engineer Jobs in San Jose, CA

Own, design, build, and operate core components of a high-throughput, low-latency real-time ad decisioning system. Take end-to-end responsibility for subsystems (architecture, implementation, testing, deployment, on-call), diagnose concurrency/timing issues, collaborate with applied scientists on ML-driven decisioning, mentor engineers, and drive system evolution and operational excellence.

The Staff Software Engineer role involves developing web APIs, leading a scrum team, and implementing scalable applications while ensuring high performance and quality in software development.

The Senior Software Engineer will build and optimize CUDA kernels for molecular dynamics simulations, deliver core simulation software, and collaborate with teams to implement new algorithms.

Design and implement idiomatic Python APIs and bindings for CUDA Core Libraries, develop and integrate native C/C++ components, define interoperability boundaries (Python, C/C++, Rust), optimize performance, own feature lifecycle (design through maintenance), and collaborate with compiler, runtime, and user teams to ensure correctness, usability, and performance.

Lead end-to-end AI solutions as a forward-deployed engineer: scope, design, and deploy ML/LLM systems; partner with clients and stakeholders; build infrastructure, data pipelines, and reusable platform components; mentor engineers; own projects from discovery through production and provide on-call support.

Develop embedded software for IoT gateways and sensor platform integration. Design embedded system architecture, firmware, and device drivers. Implement communications over USB, BLE, WiFi, ZigBee. Work on Linux/Unix platforms, use standard development tools, and integrate RESTful APIs; networking and cloud basics a plus.

Lead QA engineer responsible for designing and executing test strategies, building and maintaining automated test frameworks, validating hardware-software integrations, driving CI/CD testing, performing root-cause analysis, mentoring engineers, and ensuring system reliability, performance, and scalability across desktop, web, firmware, and distributed systems.

Lead architectural-to-implementation work for Optical PHY products by prototyping firmware/software from high-level specs, embedding with product teams, merging designs into codebases, documenting handoffs, and propagating best practices. Provide technical leadership, customer-facing support, and cross-discipline insight across protocol, software, hardware, and human interactions.

Develop and integrate test scripts for battery testing equipment (Maccor, Gamry). Use Python for scripting and data post-processing of NI TDMS files with NI Diadem. Maintain and extend codebases, fix bugs, add features, and develop instrument control software including native GUIs and web interfaces. Work with LabView, web frameworks, and modern JavaScript tooling.

Design and deliver high-throughput, reliable distributed transactional services for a global online store. Architect, implement, and scale multi-partition services, collaborate with product/design/QA, participate in architecture discussions, and drive multi-year technical roadmaps and project life cycles from conception through delivery.

Design and deliver high-throughput, multi-partition transactional services for a global online store. Architect scalable, reliable distributed systems, work through full project lifecycles, and collaborate with product, design, QA, and cross-functional teams to implement SOA/J2EE-based solutions using XML/JSON, HTTP/HTTPS, Hibernate, Oracle, and NoSQL.

Develop and maintain embedded C/C++ software for video and audio processing (MPEG-2, AVC, HEVC; AC-3, AAC, M1L2, DD+) on Linux. Participate in design and architecture reviews, software development and project life-cycle activities, collaborate with global teams and stakeholders, and support maintenance and delivery in a media/video domain.

Develop and maintain embedded C/C++ software for video and audio codec processing on Linux. Participate in design and architecture reviews, follow software development lifecycle and project lifecycles, collaborate with diverse stakeholders, and support global delivery teams.

Architect and develop automated flows using C++ and Python. Collaborate on methodologies for chip builds, integrating with VLSI teams to resolve challenges.

The role involves optimizing CUDA kernels for geometric neural networks, building interfaces for PyTorch and JAX, and collaborating with research teams to develop GPU-accelerated software for scientific applications.

The role involves developing device drivers for network interface cards, optimizing software solutions, and addressing complex technical issues in the Linux kernel group.

The role involves building automation and tooling for GPU infrastructure, improving workflows, and collaborating with teams for reliable cluster operations.

Design, build, and maintain HIL and simulation environments and tooling for aircraft validation. Integrate third-party hardware/software, ensure configuration management and traceability for certification, implement CI/CD pipelines for automated deployment and monitoring, and lead technical planning, standards, and mentorship across integrated test labs.

Design, develop, and execute SIL/HIL tests and automated test frameworks to verify safety-critical embedded platform software per DO-178C. Create test plans, trace requirements, track defects, debug hardware interfaces, and support certification activities.

Design, implement, and optimize real-time motion planning and decision-making systems for autonomous vehicles. Develop lattice-, sampling-, and optimization-based planners, integrate perception/prediction/control constraints, debug in simulation and on-road, and optimize C++ infrastructure for safe, deployable trajectory generation and evaluation.

Lead design and implementation of multi-modal perception: object detection, tracking, and sensor fusion. Build data pipelines, train and optimize perception models, develop scalable training/evaluation tools, and integrate systems for real-world autonomous vehicle deployment.

Design and implement real-time sensor fusion, GPS-IMU fusion, and SLAM-based localization and odometry algorithms for autonomous vehicles. Integrate localization with perception, mapping, and control, validate in simulation and real-world tests, optimize for real-time constraints, and debug using large-scale field data to improve robustness and accuracy.

Design, implement, and optimize real-time visual odometry and visual-inertial localization pipelines in modern C++ for autonomous vehicles. Integrate camera-based VO with IMU/GPS/other sensors, collaborate with mapping/perception/control teams, analyze and improve system robustness in diverse conditions, mentor engineers, and transition research into production.

Design, implement, and integrate real-time, mission-critical control and optimization software for autonomous trucks. Collaborate with research and cross-functional teams to develop, test, validate, prototype (SiL/HiL), tune, and deploy controllers, participate in in-vehicle testing, and support data visualization and integration with planning, localization, DBW, and testing systems.

Design, develop, integrate, test, and support real-time, mission-critical C++ software for Gatik's autonomous vehicle stack. Collaborate with research engineers to produce maintainable, testable designs; architect solutions across a large software stack; ensure SDLC and safety best practices; mentor researchers on performance and resource use; and participate in code/design reviews and deployment with DevOps teams.