Top Tech Jobs & Startup Jobs in San Francisco Bay Area, CA

Develops software infrastructure for large-scale battery characterization, including time-series data pipelines, cloud storage, cycler control services, testing APIs, anomaly detection, and digital twin simulation. Partners with battery and algorithm engineers to automate workflows and build deterministic tool layers and AI agent evaluation suites. The role is fully on-site and supports battery modeling, qualification, and production-site testing.

Industrialize PCBA suppliers for high-volume energy products by supporting audits, capacity analysis, PPAP/FAI, NPI builds, process approvals, quality investigations, supplier scorecards, and sourcing strategies. The role partners with engineering, supply chain, manufacturing, finance, and global suppliers to ensure dimensional, functional, reliability, quality, and production-readiness targets. It is fully on-site in San Francisco and requires 30% international travel to supplier and contract manufacturing sites.

Serves as the senior technical authority for extractive metallurgy across battery recycling and refining operations. Owns flowsheet design, evaluates process alternatives, defines product specifications, diagnoses impurity and recovery issues, and guides scale-up from bench and pilot stages to commercial deployment. Directs mineral processing, mechanical separation, pyrometallurgical and hydrometallurgical strategies, equipment selection, vendor testing, and plant performance improvements while advising executives and mentoring engineering teams.

The Senior HR Business Partner advises leaders and managers on employee relations, performance management, engagement, workforce issues, and organizational needs. The role independently develops HR solutions, coaches leaders, collaborates with Legal, Talent, Total Rewards, and HR Operations, and ensures decisions comply with company policies and San Francisco and California employment requirements.

Owns Redwood Materials’ internship and early-career hiring program across Nevada and South Carolina. Responsibilities include workforce planning, budgeting, university partnerships, intern recruiting and onboarding, manager enablement, program design, conversion decisions, metrics reporting, and expansion into co-op and new-graduate hiring. Partners with Finance, HR, Legal, Operations, Engineering, Communications, and People teams to scale the program and improve hiring outcomes.

Own sourcing strategy and top-of-funnel recruiting for difficult technical, operational, scientific, and supply chain roles. Build market maps, identify and engage passive candidates through multiple channels, conduct initial screens, and transfer qualified candidates to recruiters. Maintain accurate Greenhouse pipelines, measure sourcing performance, identify market challenges, and collaborate with hiring managers across time zones. Share sourcing methods and help improve qualification standards.

Build and maintain production ML and computer vision systems for automated battery sorting: image acquisition, inference, sensor integration, model training/deployment, observability, CI/CD, and cross-functional collaboration to improve on-floor performance.

Own end-to-end delivery of battery energy storage and microgrid projects, from commercial scoping through engineering, procurement, construction, commissioning, and operations handoff. Manage schedules, budgets, risks, change control, permitting, interconnection, deliverables, commissioning readiness, and project documentation. Coordinate Business Development, Product Engineering, EPC partners, customers, and internal teams while developing repeatable execution processes and forecasting inputs. The role is based in San Francisco with travel to project sites and occasional after-hours work.

Leads global sourcing for PCBAs, custom transformers, and related electronics used in high-voltage energy products. Owns supplier identification, qualification, negotiations, RFQs, agreements, supplier performance, cost optimization, inventory readiness, make-versus-buy analysis, dual sourcing, localization, and contract manufacturing strategy. Partners with engineering and operations teams to support new product introduction, production ramp, and sustained manufacturing. Requires international supplier travel of 10–25%.

As a Solutions Engineer, you will serve as a technical resource, support customer engagement on system design, ensure technical specifications are met, and collaborate with engineering teams on customer feedback and project needs.