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[Job - 30900] Master Data Developer (Amazon Neptune), Colombia

CI&T · Colombia

About the role

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

As CI&T grows its Data & Analytics Center of Excellence, we seek a talented and experienced Graph Database Developer to join a specialized team building an AI-powered fashion advisory platform for a leading client in the fashion and retail industry. This role is central to turning unstructured editorial content into a structured knowledge graph that powers real-time, intelligent style recommendations for end users attending formal events.

The Graph Database Developer will work in a staff augmentation model, integrating with a cross-functional team that includes a Machine Learning Developer and a GenAI Agent Developer. This is a hands-on technical position requiring strong ownership of the graph data layer — from schema design through ingestion, entity resolution, and query performance — with direct impact on what the AI agent recommends to users.

Responsibilities: • Schema Design: Define node labels and edge types that represent the relationships between designers, garments, style attributes, trends, occasions, and editorial articles. • Entity Ingestion: Build workflows that consume structured JSON payloads from the upstream data pipeline and load them into the graph database in batch mode. • Probabilistic Entity Matching: Match extracted item mentions (for example, a bag described by type, color, and material) to the correct product node in a catalog of 50,000+ SKUs by scoring attribute overlap, assigning a match confidence, and creating the relationship only when it exceeds a defined threshold. Deduplicate items that appear inconsistently across different articles. • Editorial Signal Weighting: Assign weights to relationships based on how prominently an item or trend was featured, distinguishing a dedicated feature from a passing mention. These weights determine what the AI agent surfaces first in its recommendations. • Query Optimization: Design and tune openCypher traversal queries, including multi-hop queries, to return relevant results in under three seconds for downstream Amazon Bedrock Agents. • Cross-Functional Collaboration: Work alongside the Machine Learning Developer and GenAI Agent Developer to align the graph structure with the retrieval and recommendation needs of the AI agent. • Technical Validation: Support technical interviews and validation of new team members joining the graph database workstream, as needed.

Requirements: • Advanced English proficiency (C1 or above), with autonomy to communicate directly with international stakeholders • Solid experience with the property graph data model • Experience writing and optimizing openCypher queries, including multi-hop traversals under latency constraints • Experience designing graph schemas, evaluating trade-offs between different modeling approaches • Experience building entity resolution logic, including fuzzy matching, scoring algorithms, and deduplication across data sources • Strong Python skills for data engineering, including batch processing of structured data payloads • Ability to work independently in a fast-paced, staff augmentation setting with an established client team

Nice to Have: • Solid experience with Amazon Neptune • Prior experience in fashion, retail, or e-commerce catalogs • AWS certification in databases or data analytics • Experience integrating graph databases with generative AI agents (for example, Amazon Bedrock Agents) • Familiarity with recommendation systems or ranking/weighting logic for content surfacing

#LI-JP3

Our benefits include:

- Premium Healthcare

- Meal voucher

- Maternity and Parental leaves

- Mobile services subsidy

- Sick pay-Life insurance

- CI&T University

- Colombian Holidays

- Paid Vacations

And many others.

Collaboration is our superpower, diversity unites us, and excellence is our standard.

We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.

Text as published by CI&T. We don't edit postings; apply and ask questions on the employer's site.

No salary posted
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Posted
Aug 17, 2026 (2 months ago)
First seen by us
Nov 7, 2026
Still listed
Nov 12, 2026
Source
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