Build QA Systems with Langchain and Neo4j — PickAClass
⏱ 2h 42m 📚 27 lessons 🎧 Audio version

Build QA Systems with Langchain and Neo4j

Learn to integrate large language models with a graph database to create powerful question-answering applications.

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About this course

In today's information-rich world, extracting precise answers from vast datasets is crucial for effective decision-making. This course equips you with the skills to design and implement intelligent question-answering systems that leverage large language models and structured knowledge bases. What you'll learn: - Understand the fundamentals of Large Language Models (LLMs) and prompt engineering. - Learn to use Langchain for chaining LLM calls and managing application flow. - Implement Retrieval Augmented Generation (RAG) to provide LLMs with external knowledge. - Integrate Neo4j to store and retrieve structured and unstructured data for RAG. - Practice building and evaluating a functional question-answering system. - Explore basic testing strategies and ethical considerations for LLM applications. This course begins with foundational concepts of LLMs and Langchain, then guides you through integrating Neo4j for data management, culminating in the construction of a complete RAG-based QA system. This course is designed for beginners interested in developing AI-powered applications, with no prior experience in LLMs or graph databases required. Begin your journey into building intelligent, data-driven question-answering systems today.

Course contents

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
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  • 💸 14-day refund
    No questions asked
  • ⚡ Short & focused
    2h 42m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Build QA Systems with Langchain and Neo4j
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Build QA Systems with Langchain and Neo4j
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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