Hi candidates, thanks for your interest in the role. It’s not open today, but there’s a good chance it will open as we grow the team. If you send us your CV, we’ll keep it on file and reach out quickly if the role opens and your experience is a fit.

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

Interview process:

1. Online HR Round: company introduction & experience discovery

2. Offline Hiring Manager: with Data Engineer & Analytics Engineer (Technique)

3. Online Hiring Manager: with Operations Director (Business)

Benefits

• 💰 Competitive Salary: We offer a salary that’s competitive with the market.

• 📄 Flexible Contract Options: We offer both local and international contract options, so you can choose what works best for you. You can also receive your salary in USD or VND.

• 🌱 Growth Opportunities: There’s plenty of room to grow if you want to go beyond your core focus and sharpen your skills.

• 💻 Tech Setup: You’ll get a MacBook Air or MacBook Pro, plus a monitor for work.

• 🩺 Premium Insurance: We provide premium insurance coverage for you and 1 loved one, so you can feel supported in and outside work.

• 🎯 Bonus Scheme: We offer a quarterly performance bonus of up to 150% of your compensation.

• 🤝 Team Bonding Allowance: You’ll get 800,000 VND per quarter for team bonding activities.

• 🌴 Paid Time Off & Public Holidays: You’ll get 14 days of annual leave, and we fully observe national public holidays.

• 🏠 Hybrid Working: Work from home on Wednesdays and Fridays

• 🍛 Meals & Refreshments: We provide free lunch and dinner.

About Elfie

Elfie is the world’s #1 100% free digital health ecosystem, bringing together connected experiences for patients, healthcare professionals and healthcare organisations. Through the Elfie app, WhatsApp experiences, ElfieCare clinician tools and AI-powered health coaching, Elfie helps people take better care of their health in a simple, engaging and motivating way.

By combining gamification, AI and evidence-based health programmes, Elfie empowers people to build healthier habits while enabling healthcare professionals to better support their communities.

Backed by peer-reviewed medical publications and trusted by life sciences and insurance partners, the Elfie ecosystem drives meaningful patient engagement, improves adherence and generates valuable real-world insights, helping organisations achieve better health outcomes at scale.

Stay Elfie...