Data Engineer - Semantics & Domain Models

Chain IQ; Lisboa; On-site; EUR 45,000 - 65,000; Full time

Job summary

A global procurement service partner in Lisbon is seeking a professional to define and maintain data models that reflect real workflows and business logic. The ideal candidate will have full professional fluency in English and experience with semantic engineering concepts. Responsibilities include collaborating with product and engineering teams to ensure data consistency. The company offers a dynamic international environment, encouraging innovation and high performance.

Qualifications

• Full professional fluency in English (written and spoken) is mandatory.
• Experience with semantic or analytics engineering concepts.
• Strong understanding of domain modelling and data relationships.
• Ability to translate complex business processes into structured data.
• Comfort collaborating across product and engineering teams.
• Clear communication and attention to consistency and correctness.
• Interest in enabling automation and reasoning through better data design.

Responsibilities

• Define and maintain canonical domain entities such as suppliers and contracts.
• Build semantic datasets that reflect real workflows.
• Model relationships and hierarchies explicitly.
• Ensure consistent definitions across products and analytics.
• Support evolution toward graph-based use cases.
• Collaborate with teams to align data with system behavior.
• Collaborate with Product, AI and Engineering teams to align data with system behavior
• Help remove duplicated and inconsistent logic from dashboards and downstream tools

Skills

Fluent English

Semantic engineering

Domain modeling

Data translation

Collaboration with teams

Attention to consistency

Job description

Location: Lisbon, PT

Date: Mar 17, 2026

At Chain IQ, your ideas move fast.

Chain IQ is a global AI-driven Procurement Service Partner, headquartered in Baar, Switzerland, with operations across main centers and 16 offices worldwide. We provide tailored, end-to-end procurement solutions that enable transformation, drive scalability, and deliver substantial reductions in our clients' indirect spend. Our culture is built on innovation, entrepreneurship, ownership, and impact. Here, your voice matters - bold thinking is encouraged, and action follows ambition.

We are moving away from fragmented metrics and dashboard‑specific logic toward a shared, semantic data foundation. This role focuses on defining what data means across the platform and ensuring consistency for applications, analytics and automated workflows.

This is a hands‑on role that sits close to product and engineering. You turn complex, real‑world procurement processes into structured, understandable data models that scale.

Responsibilities

Define and maintain canonical domain entities such as suppliers, contracts, risks and obligations

Build semantic datasets that reflect real workflows and business logic

Model relationships, hierarchies and time‑based changes explicitly

Ensure consistent definitions across products, analytics and automation

Design patterns for linking documents to structured entities

Support gradual evolution toward graph‑based and retrieval‑driven use cases

Collaborate with Product, AI and Engineering teams to align data with system behavior

Help remove duplicated and inconsistent logic from dashboards and downstream tools

What you will work with

Semantic layers built on top of lakehouse data

Domain‑oriented datasets and views

Metadata, classification and descriptive attributes

Consumers including applications, analytics and automated workflows

Requirements

• Full professional fluency in English (written and spoken) is mandatory

Experience with semantic or analytics engineering concepts

Strong understanding of domain modelling and data relationships

Ability to translate complex business processes into structured data

Comfort collaborating across product and engineering teams

Clear communication and attention to consistency and correctness

Interest in enabling automation and reasoning through better data design

Join a truly global team.

We offer a dynamic and international environment where high performance meets real purpose. We're proud to be Great Place to Work-certified and even prouder of the people who make that possible. Let’s shape the future of procurement — together.

Chain IQ – Create. Lead. Make an impact.

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