via Ycombinator
$75 - 95 a year
About the role SiPhox fulfillment is the backbone of our customer experience. You’ll own day-to-day kit assembly, inventory, and shipping while building the systems that let us scale with speed and precision, keeping our customers 100% satisfied. What we’re looking for A meticulous, high-drive operator who treats inventory accuracy, yield, and on-time shipments as non-negotiables, and is comfortable enforcing standards. Type-A, control-oriented, neurotic attention to detail. Responsibilities Inventory, Forecasting & Yield Run strict inventory control for all SKUs (kits, components, packaging). Cycle counts, lot/batch/expiry tracking, and reconciliation. Maintain >98% inventory accuracy. Build demand and supply forecasts (12-24 week horizon). Translate forecasts into purchase plans and safety stock levels. Own yield, scrap, and rework. Track on-time, in-full performance and keep aging orders near zero. Supplier & Cost Management Source, vet, and qualify high-quality suppliers for components, packaging, and logistics. Negotiate pricing, MOQs, and terms; prevent single-points-of-failure with dual sourcing. Manage the budget for COGS and OPEX; drive cost per kit down without sacrificing quality. Fulfillment, Logistics & SLA Enforce our SLA: every order ships within 1 business day. Coordinate inbound & outbound freight, 3PLs, and parcel carriers; resolve exceptions in real time. Quality Assurance & Compliance Stand up a robust QA system across incoming, in-process, and final inspections. Define sampling plans, acceptance criteria, and stop-ship triggers. Champion Good Documentation Practices; align workflows with ISO 13485-style rigor. SOPs, Training & Safety Write crystal-clear SOPs for kit assembly, fulfillment, inventory, and QC checks. Build role-based training, workstation standards, and audit checklists. Maintain a tidy, safe floor, calibrated equipment, and compliant handling. Software & Automation Partner with software engineering to build & optimize internal tools for fulfillment, assembly, inventory, and forecasting. Define requirements, write user stories, and own user acceptance testing. Work with & automate integrated barcode scanning, camera streaming for QA, lot/expiry capture, and real-time dashboards. Evaluate/implement WMS; ensure clean and reliable data. Success metrics you’ll own SLA hit rate: ≥99% of orders shipped within 1 business day Inventory accuracy: ≥98% (cycle-count verified) First-pass yield (FPY): ≥99% for standard kits Forecast error (MAPE): improving quarter-over-quarter COGS per kit: tracked and trending down with quality intact Basic qualifications 3+ years in operations/supply chain/fulfillment. Proven ownership of inventory systems and aggressive ship-speed SLAs. Strong analytical toolkit: spreadsheets, dashboards, and KPI-driven decision-making. Supplier sourcing and budget management experience. Exceptional attention to detail and process discipline; writes and enforces SOPs. Comfortable working in a fast-moving, hands-on environment. Nice to have Experience with WMS implementation, barcode systems, and label/scan/print workflows. Strong scripting (Python/React) ability for lightweight automation and analytics. 3PL management and cold-chain shipping experience. How we work Ownership, precision, and speed. You’ll have end-to-end control of fulfillment so kits ship on time and quality never slips. In-person, hands-on. Onsite in Burlington, MA to walk the floor, fix bottlenecks fast, and collaborate tightly with engineering and ops. Benefits Competitive salary + stock options Medical, dental, and vision coverage Membership to Lifetime Gym 401(k) Weekly company-wide lunches
This job posting was last updated on 11/23/2025