Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm Ernest Sanz, a Production Engineering & Management master's student at KTH with hands-on experience improving production processes in R&D settings. I turn issues into fixes that stick by focusing on root cause, simple standards, and practical tools. I excel at cross-functional coordination and clear reporting, translating complex challenges into actionable plans and measurable improvements while building quality into processes.…I'm Ernest Sanz, a Production Engineering & Management master's student at KTH with hands-on experience improving production processes in R&D settings. I turn issues into fixes that stick by focusing on root cause, simple standards, and practical tools. I excel at cross-functional coordination and clear reporting, translating complex challenges into actionable plans and measurable improvements while building quality into processes.

Ernest Sanz

Product Designer, Project Manager, 3D Designer, +1





I'm Ernest Sanz, a Production Engineering & Management master's student at KTH with hands-on experience improving production processes in R&D settings. I turn issues into fixes that stick by focusing on root cause, simple standards, and practical tools. I excel at cross-functional coordination and clear reporting, translating complex challenges into actionable plans and measurable improvements while building quality into processes.…I'm Ernest Sanz, a Production Engineering & Management master's student at KTH with hands-on experience improving production processes in R&D settings. I turn issues into fixes that stick by focusing on root cause, simple standards, and practical tools. I excel at cross-functional coordination and clear reporting, translating complex challenges into actionable plans and measurable improvements while building quality into processes.

Available to hire

I’m Ernest Sanz, a Production Engineering & Management master’s student at KTH with hands-on experience improving production processes in R&D settings. I turn issues into fixes that stick by focusing on root cause, simple standards, and practical tools.

I excel at cross-functional coordination and clear reporting, translating complex challenges into actionable plans and measurable improvements while building quality into processes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

R&D Production Engineer at KARTSANA S.L.

March 1, 2024 - February 28, 2025

Coordinated client-facing project follow-up and internal R&D reporting; aligned requirements, tracked milestones/risks, and shared clear status updates to support fast decisions. Owned the shop-floor improvement backlog; prioritized issues, led root-cause analysis, and implemented countermeasures to reduce recurring defects and rework. Introduced checklists and templates to standardize critical steps and build quality into the process.

Co-founder | Additive Manufacturing Services at OXON 3D

January 1, 2022 - November 30, 2024

Built and ran an additive manufacturing service with end-to-end ownership: quoting, planning, production, QC, and delivery for 100+ orders/year. Worked client-facing: scoped needs, set expectations, and translated problems into manufacturable solutions with clear communication.

Engineering Intern (Project & Documentation) at ISC PLASTICS PARTS

November 1, 2023 - February 29, 2024

Prepared and maintained technical documentation: drawings, specs, revision control, and structured records in the company database for fast retrieval and auditability. Acted as a bridge with customers: clarified requirements early to reduce back-and-forth and avoid rework.