AI Architect (LangChain Ecosystem) - Remote

<p><strong>What We’re About</strong></p> <p>At <strong>CentralSquare</strong>, we don’t just build software - we power public servants and uplift communities with <strong>Hero-Grade</strong> Technology. Every line of code, every feature we deliver helps heroes across North America protect, serve, and save lives. When you join us, you become part of a mission-driven team creating technology that makes communities safer and stronger.</p> <p><strong>Your Growth Matters.</strong> We believe heroes deserve opportunities to rise. That’s why we invest in your career with mentorship, learning programs, and clear paths for advancement. If you’re motivated, there’s no limit to how far you can go.</p> <p><strong>Your Commitment Deserves Reward.</strong> We offer competitive compensation and a benefits package designed to support your life inside and outside of work—tuition reimbursement, parental leave, paid volunteer hours, and unlimited PTO. Plus, our flexible work environment gives you the freedom to balance your heroic work with personal well-being, whether you’re in the office or remote.</p> <p>Join us and help build the tools that power real-life heroes. Together, we make a difference.</p> <p><strong>The Opportunity</strong></p> <p>We're looking for an AI Architect II to lead the design and delivery of intelligent systems built on modern LLM tooling. You will own the architecture of retrieval-augmented, agent-based, and graph-enhanced AI applications — from proof-of-concept through production — and serve as a technical authority across our AI infrastructure. This role sits at the intersection of applied research and platform engineering, requiring deep fluency with the LangChain ecosystem, emerging Model Context Protocol (MCP) standards, and scalable Python/TypeScript service design.</p> <p><strong>Core Responsibilities:</strong></p> <ul> <li>Define and govern MCP server contracts, tool manifests, and inter-agent messaging patterns across multi-agent workflows built on LangChain/LangGraph. </li> <li>Architect end-to-end RAG and GraphRAG pipelines — from embedding strategy, vector store selection, and graph construction through retrieval orchestration and context-window management</li> <li>Design system-level architecture for AI applications, including prompt lifecycle management, evaluation harnesses, observability hooks, and guardrail layers.</li> <li>Lead technical design reviews, establish AI engineering best practices, and mentor mid-level engineers on LLM application patterns.</li> <li>Partner with product and data teams to translate business problems into retrieval and reasoning strategies; prototype rapidly and document architectural decisions.</li> <li>Build and maintain Python and TypeScript SDK layers, agent tooling, and shared libraries consumed by application teams.</li> <li>Drive evaluation frameworks — RAGAS, LangSmith tracing, and custom evals — to measure retrieval quality, hallucination rates, and task completion.</li> <li>Stay current with frontier model capabilities, contribute to model selection criteria, and surface architecture changes required by new API or context-window evolutions.</li> </ul>

Back to blog

Common Interview Questions And Answers

1. HOW DO YOU PLAN YOUR DAY?

This is what this question poses: When do you focus and start working seriously? What are the hours you work optimally? Are you a night owl? A morning bird? Remote teams can be made up of people working on different shifts and around the world, so you won't necessarily be stuck in the 9-5 schedule if it's not for you...

2. HOW DO YOU USE THE DIFFERENT COMMUNICATION TOOLS IN DIFFERENT SITUATIONS?

When you're working on a remote team, there's no way to chat in the hallway between meetings or catch up on the latest project during an office carpool. Therefore, virtual communication will be absolutely essential to get your work done...

3. WHAT IS "WORKING REMOTE" REALLY FOR YOU?

Many people want to work remotely because of the flexibility it allows. You can work anywhere and at any time of the day...

4. WHAT DO YOU NEED IN YOUR PHYSICAL WORKSPACE TO SUCCEED IN YOUR WORK?

With this question, companies are looking to see what equipment they may need to provide you with and to verify how aware you are of what remote working could mean for you physically and logistically...

5. HOW DO YOU PROCESS INFORMATION?

Several years ago, I was working in a team to plan a big event. My supervisor made us all work as a team before the big day. One of our activities has been to find out how each of us processes information...

6. HOW DO YOU MANAGE THE CALENDAR AND THE PROGRAM? WHICH APPLICATIONS / SYSTEM DO YOU USE?

Or you may receive even more specific questions, such as: What's on your calendar? Do you plan blocks of time to do certain types of work? Do you have an open calendar that everyone can see?...

7. HOW DO YOU ORGANIZE FILES, LINKS, AND TABS ON YOUR COMPUTER?

Just like your schedule, how you track files and other information is very important. After all, everything is digital!...

8. HOW TO PRIORITIZE WORK?

The day I watched Marie Forleo's film separating the important from the urgent, my life changed. Not all remote jobs start fast, but most of them are...

9. HOW DO YOU PREPARE FOR A MEETING AND PREPARE A MEETING? WHAT DO YOU SEE HAPPENING DURING THE MEETING?

Just as communication is essential when working remotely, so is organization. Because you won't have those opportunities in the elevator or a casual conversation in the lunchroom, you should take advantage of the little time you have in a video or phone conference...

10. HOW DO YOU USE TECHNOLOGY ON A DAILY BASIS, IN YOUR WORK AND FOR YOUR PLEASURE?

This is a great question because it shows your comfort level with technology, which is very important for a remote worker because you will be working with technology over time...