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Downstream Engineer III

Lexington, MA💼 Full-time💰 $89,900–$89,900🗓 2026-07-24 → 2026-09-25

Core

Support downstream biotherapeutics process development through hands-on purification and recovery experiments across micro, bench, and pilot scales.

Role type

Mid-level individual contributor downstream process development engineer

Builds

Early-stage and late-stage biotherapeutic programs

Domain

Biopharmaceuticals / Biotherapeutics

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

chromatography, harvest operations, ultrafiltration, diafiltration, viral clearance, basic bioprocess control systems, electronic laboratory notebooks, basic data analysis, technical writing

Preferred skills

protein purification, process development methods, emerging digital tools, AI-enabled processes

Responsibilities

Execute chromatography, harvest, ultrafiltration, diafiltration, and viral clearance experiments; maintain laboratory equipment; document experimental work in electronic laboratory notebooks; perform basic data analysis to review trends; prepare technical summaries and study updates; follow quality and safety procedures; assist with small projects under close supervision.

Seniority

Mid-level, hands-on IC with moderate scope problem solving

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