Job Description

Shape The Future of Global Health 🇻🇳

At Elfie, we’re not just building a health tracking app. We’re changing how people manage their health worldwide. If you're looking for a mission with global reach, real impact, and a team that scales fast and learns even faster, you’ve just found your next move.

👉 Click here to find out more on our careers page!

What You’ll Get

• 🧳 Relocation Support - Discussed on a case-by-case basis

• 💰 Competitive Salary - Offered based on your location and experience

• 💻 Tech Setup - Receiving the equipment and tools you need to do your best work

• 🌱 Growth Opportunity - We support your growth and skill development over time

• 🎯 Bonus Scheme - Performance-related, quarterly paid

• 🌴 Paid Time Off & Public Holidays - Policy varies by country and contract type

• 🏠 Hybrid Working - Typically 3 days in the office per week

• 🍛 Meals & Refreshments (Vietnam Office Only) - We’ve got you covered

What You’ll Do

• Build and maintain ingestion pipelines from operational sources (Firestore CDC, event tracking APIs, Backend services) into a centralized data store

• Design and evolve the core data schemas (user state, user signals) that serve as the unified source of truth across all Elfie products

• Define how data gets ingested from every component in the Elfie ecosystem (app, backend, third-party integrations) and how it gets served out (direct BQ access, Data API, BI tools); own the standards that make upstream data trustworthy

• Implement transparent pipeline lineage so any team can see how data was transformed; define tests and governance rules that enforce quality before data reaches the AI layer

What You’ll Need

Must-have:

• 5–8 years working with data in a product or platform context

• Strong schema and domain modeling instinct

• End-to-end pipeline work: extraction, transformation, structured storage

• Proficiency in SQL, Python, BigQuery, dbt

• Practices: Git workflows, CI/CD, code review

• Experience in fast-paced startup environments with quick iteration, continuous deployment, and test-driven development

• Strong bias for action - you know we have a lot to deliver and you can help us get there

• Positive attitude and willingness to roll up sleeves and dig deep to achieve goals;

• Excellent English communication skills in a professional capacity

Nice to have:

• Experience building or maintaining structured knowledge layers; including ontologies, domain taxonomies, or knowledge bases that ground AI outputs in verifiable definitions

• Experience using LLMs via API (Vertex AI, OpenAI, or equivalent)

• Familiarity with LLM pipelines or agentic system data flows

• Health or behavioral data background

Why Join Elfie?

We're a global start-up that is mission-led, and fiercely product-driven.

We're building something that improves lives - and we're doing it with a culture of trust, freedom, and high performance.

What Now?

Apply today for immediate consideration! Got someone in mind? We offer a referral reward if your recommendation is hired. Contact Talent Acquisition for more info.