Senior Data Architect - Mettawa

A Market Access Business Technology Solutions organization is seeking hands-on Senior Data & Graph Technology Architects to rapidly onboard and help build an enterprise-grade Knowledge Graph + AI/LLM-enabled platform. · This platform will support Market Access field teams and dow ...

Job description

A Market Access Business Technology Solutions organization is seeking hands-on Senior Data & Graph Technology Architects to rapidly onboard and help build an enterprise-grade Knowledge Graph + AI/LLM-enabled platform.

This platform will support Market Access field teams and downstream Commercial operations.

These architects will play a critical role in delivering , contributing to a new solution that integrates:

A Neo4j-based knowledge graph
An LLM-powered chatbot / conversational interface
Market Access and Patient Access-compliant data
Backend services, metadata systems, and logging frameworks
A field-facing interface that delivers graph-driven insights

The ideal candidates are high-caliber, Senior technologists who are highly hands-on, can explore complex data independently, and deliver meaningful progress quickly in an agile, iterative environment.

Key Responsibilities

Knowledge Graph Architecture & Development

Architect, design, and implement Neo4j-based knowledge graph structures supporting Market Access and Patient Access use cases.
Ingest, model, and connect complex pharmaceutical datasets (patients, coverage, contracts, benefits, services, and GTN components).
Design and optimize graph schemas, nodes, relationships, metadata layers, indexing strategies, and query performance.
Integrate multiple knowledge sources while ensuring data correctness, lineage, traceability, and compliance with enterprise data standards.

AI / LLM Integration

Design and integrate LLM-powered chatbot and assistant workflows layered on top of the knowledge graph.
Implement prompt engineering, retrieval-augmented generation (RAG), and domain-specific optimization.
Partner with enterprise AI teams to ensure alignment with established frameworks, guardrails, and compliance requirements.

Backend Systems, Data Engineering & Metadata

Build backend services that interface with graph databases, LLM systems, and field-facing applications.
Implement logging, observability, and metadata solutions, potentially leveraging
AWS-native services.
Develop ETL/ELT pipelines to ingest, transform, and enrich data from cloud data platforms and other enterprise sources.

Pharma Domain Execution

Rapidly understand and map complex Patient Services and Market Access datasets, including:
Coverage, benefits, and payer data
Contracting, co-pay, and rebate structures
Access and affordability programs
Gross-to-Net (GTN) components
Apply domain knowledge to design accurate graph relationships and AI-driven workflows.

Agile Delivery & MVP Execution

Operate at high velocity, delivering visible progress on a daily basis.
Participate in daily standups, design sessions, and technical reviews.
Own work end-to-end-from design through implementation and testing.
Proactively identify gaps, ask the right questions, and recommend solutions without needing direction.

Required Skills

Data Architecture
Python
PySpark
Data Modeling
Graph Modeling
Neo4j
LLMs / Generative AI

AWS
Preferred Qualifications

Strong experience across the
AWS ecosystem (e.g., DynamoDB, Lambda, S3, API Gateway).
Prior experience working with Market Access and/or Patient Access data.
Previous contributions to enterprise LLM or ChatGPT-based pilots or prototypes.
Comfort working in fast-paced MVP environments with ambiguity and rapid iteration.

Experience Level

Expert / Senior Level

Job Type & Location

This is a Contract position based out of Mettawa, IL.

Pay And Benefits

The pay range for this position is $ $90.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms.

If eligible, the benefits available for this temporary role may include the following:
Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Mettawa,IL.

Application Deadline

This position is anticipated to close on Feb 25, 2026.

>About TEKsystems:

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity.

We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia.

As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change.

That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems And TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions.

We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed.

We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.