Lead Product Engineer (Customer-Facing)

Location: Barcelona, Spain (Hybrid)

Type: Full-time

Level: Senior / Lead (hands-on)

About Omniscope

Omniscope is a TechBio company decoding the immune system at unprecedented resolution. Our proprietary immune profiling technology enables transformative insights into immune health, aging, and performance. We operate globally with a distributed team and are supported by top investors and public funding partners across Europe and the US.

TL;DR

Accelerate the company’s software roadmap. Own customer-facing products end-to-end. Ship fast, learn from feedback faster. Build both backend and UI. Connect the right data to the right UX so customers get value in minutes—not months. Pragmatic over perfect.

The Role

We’re hiring an ambitious, generalist Lead Product Engineer to be the technical driver behind customer-facing experiences. Although a small team will be built around you, this is a largely IC position reporting directly to the CEO.

What You’ll Work On

• Build & ship: Implement user-facing features across the stack (front end + back end + data plumbing). Releases at least weekly are normal

• Hook up data: Integrate and transform large datasets from internal systems to power product features and insights. This includes working with data conversion and integration to ensure seamless flow

• Automate delivery: Set up automated workflows to take data from the lab to graphs on the customer’s screen with minimal manual effort

• Make it usable: Sweat UX details; simplify flows; remove friction; with tight feedback loops

• Own quality pragmatically: Tests where they matter, feature flags, and basic observability—no heavyweight ceremony

• Lightweight leadership: Code reviews that unblock and mentorship that accelerates. No nit-picks. Direct feedback

• Iterate on the software that is the digital face of the company: your responsibility is build great user experiences

You Might Be a Fit If You Have

• A bias toward shipping customer value as quickly as possible

• 5+ years building customer-facing web products end-to-end

• Strength in one modern front end (React/Next.js or similar) and one back end (Python preferred, Node or others OK), plus SQL chops

• Substantial experience with using AI coding agents for production ready code

• Clear, concise communication—async friendly and customer aware. You track and document work for accountability and alignment

• Cloud (AWS/GCP), CI/CD, and basic security best practices

• Data visualization experience (dashboards that explain themselves)

• Lean on coding agents like Cursor, Claude Code, or Codex daily to do in minutes what would otherwise take hours

What This Role Is Not

• Not ML Ops or data-pipeline specialization

• Not a data science or research position. This is about building products

• Not perfection-for-perfection’s-sake engineering

Why Join Omniscope

Your work will be in the hands of real customers making real decisions. You’ll define how complex immune data becomes clear, actionable product experiences—fast. Join at an exciting stage (Pre-Series A) with visibility to the CEO and strong ownership of outcomes.

Location & Language

Hybrid in Barcelona, Spain

Target: at least one week per month onsite

Ideally: in-office

Fluent English; Spanish is a plus

Equal Employment Opportunity

Omniscope is an equal opportunities employer. We do not discriminate based on race, color, religion, national origin, age, sex, physical or mental disability, medical condition, genetic information, gender identity, sexual orientation, marital status, or any other legally protected characteristics. We encourage applications from all qualified candidates with a passion for building products that make complex science useful. Omniscope also believes in rewarding employees with equity.

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