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 contract negotiation experience.
- Exceptional attention to detail and process discipline; writes and enforces SOPs.
- Comfortable building from scratch in a fast-moving, hands-on environment.
Nice to have
- Experience with WMS implementation, barcode systems, and label/scan 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
🚀 Y Combinator Company Info
Y Combinator Batch: S20
Team Size: 63 employees
Industry: Healthcare -> Consumer Health and Wellness
Company Description: Wearable and At-Home protein monitoring with silicon photonic chips
📋 Job Details
Job Type: Full-time
Experience Level: 3+ years
Time to Hire: 14
🛠️ Required Skills
Python React Data Analytics