New opportunity

Senior AI Engineer

Topline Pro · Boston, United States

About this role

Topline Pro is hiring a Senior AI Engineer in Boston, Massachusetts, to develop AI agents and chat capabilities for products that help home-service businesses acquire customers and manage their businesses. The role works on a cross-functional engineering team, reports to the VP of Engineering, and contributes to product decisions alongside engineering and product leaders.

Responsibilities

  • Build AI-powered assistants and chat capabilities for small-business customers.
  • Develop infrastructure and pipelines for scalable, real-time AI interactions in production.
  • Prototype AI applications, evaluate performance, and refine features using user feedback.
  • Partner with engineering, product, and design colleagues throughout product development.

Requirements

  • 5+ years of experience in AI, ML, or NLP-related engineering roles and proficiency in Python.
  • Real-world experience with retrieval-augmented generation, vector embeddings, and vector databases; hands-on experience with OpenAI and Anthropic APIs.
  • Familiarity with LLMs and NLP techniques, including prompt engineering, fine-tuning, and evaluation; experience with coded agentic frameworks such as Pydantic AI, LangChain, or LangGraph.
  • Experience with end-to-end MLOps, including monitoring, deployment, and evaluation, and with production AI applications such as cloud-based APIs and real-time processing.
  • Experience working with product and design counterparts and in an Agile Scrum environment. Strong problem-solving, decision-making, communication, teamwork, and curiosity about system behavior are valued.

Preferred experience: Django, React, and PostgreSQL.

Benefits include medical, dental, and vision coverage; computer and workspace enhancements; a non-matching 401(k); unlimited vacation; nine company holidays; one personal volunteer day annually; a company-paid Wellhub membership; and dinner coverage with a stocked kitchen. The role offers responsibility and ownership in scaling the product.

For full details about this role, click “Apply on company site” to view the employer’s original posting.

Skills for this role

PythonDjangoReactPostgreSQLRetrieval-Augmented Generation (RAG)Vector embeddingsVector databasesOpenAI APIAnthropic APILarge language modelsNatural language processingPrompt engineeringFine-tuningAI evaluationPydantic AILangChainLangGraphMLOpsModel monitoringModel deploymentCloud-based APIsReal-time processingAgile ScrumCross-functional collaborationCommunication

Your skill match

Checking your profile…

YOUR NEXT STEP

Get interview-ready for this role

A focused preparation guide, built around this job’s responsibilities and requirements.

✦ AI-generated guide
Preparation suggestions, not the employer’s actual interview questions. Always check the original posting for current requirements.
01

Understand the role

What matters most

  • Build useful AI agents and chat

    The role develops AI-powered assistants that help home-service customers run their small businesses. Prepare to discuss how agent and chat behavior would serve practical customer tasks, using the stated experience with Python, agentic frameworks, and OpenAI and Anthropic APIs.

  • Deploy real-time AI at scale

    Topline Pro calls for production infrastructure and pipelines for real-time interactions, plus deployment and monitoring through end-to-end MLOps. Focus preparation on architecture, operational monitoring, and how to diagnose system behavior.

  • Evaluate and refine AI features

    The role prototypes applications, evaluates performance, and refines features using user feedback. Its requirements also emphasize RAG, embeddings, vector databases, and LLM evaluation; prepare to explain how those choices would be tested rather than treated as defaults.

  • Shape product decisions with peers

    This senior engineer contributes strategically with engineering and product leaders and works with Product and Design as equal counterparts. Prepare to explain how technical evidence, user feedback, and clear communication can inform decisions when information is incomplete.

Likely challenges to think through

  • Balancing response quality and speed

    A likely trade-off in real-time AI interactions is richer retrieval or agent behavior versus response time and operational complexity; the posting does not specify current bottlenecks. Prepare to compare simpler and more involved designs against measured quality and latency.

  • Keeping retrieval grounded

    Because the role calls for real-world RAG, embeddings, and vector databases, a plausible difficulty is getting relevant context without introducing misleading answers. Prepare an evaluation approach that distinguishes retrieval failures from generation failures and uses user feedback to guide changes.

  • Moving prototypes into dependable production

    The role spans rapid experimentation and production MLOps, which may create tension between iteration speed and reliable deployment. Prepare to describe how evaluation, monitoring, and deployment checks could support both without assuming Topline Pro has a particular release process.

03

Practice your answers

Technical practice

How would you design an AI assistant that helps a home-service business manage customer conversations?

What to coverThe role involves building AI agents and chat capabilities for small-business customers. Suggested preparation: explain how you would define the assistant’s scope, handle conversational context, and evaluate whether its responses help the business complete useful tasks.

How would you build and improve a retrieval-augmented generation pipeline?

What to coverThe posting specifies real-world RAG experience, including embeddings and vector databases. Suggested preparation: discuss document preparation, retrieval quality, grounding responses in retrieved content, and how you would diagnose irrelevant results.

When would you use an agentic framework rather than a simpler application flow?

What to coverThe posting names coded agentic frameworks such as Pydantic AI and LangChain/LangGraph. Suggested preparation: compare orchestration, state handling, testing, and operational complexity with a simpler approach.

How would you integrate and compare OpenAI and Anthropic APIs for a chat feature?

What to coverHands-on experience with both APIs is listed. Suggested preparation: explain how you would compare response quality, latency, cost, and failure handling for a defined use case without assuming the product uses either provider in a particular way.

How would you decide between prompt changes and fine-tuning?

What to coverThe posting calls for familiarity with prompt engineering, fine-tuning, and evaluation. Suggested preparation: describe what evidence would justify each approach and how you would measure improvement against a baseline.

How would you evaluate a prototype assistant and use customer feedback to refine it?

What to coverThe role includes prototyping AI applications, evaluating performance, and iterating on user feedback. Suggested preparation: distinguish task-level quality checks from feedback gathered in use, and explain how you would prioritize changes.

How would you support scalable, real-time AI interactions in production?

What to coverThe role includes building infrastructure and pipelines for real-time AI interactions and deploying production AI applications. Suggested preparation: discuss latency and throughput trade-offs, API reliability, and what you would measure as usage grows.

How would you deploy, monitor, and troubleshoot an AI feature end to end?

What to coverThe posting specifies MLOps experience across deployment, monitoring, and evaluation, as well as curiosity about why systems behave as they do. Suggested preparation: explain a rollout and monitoring approach, then trace a quality or performance regression from observed symptoms to a testable cause.

How would you structure the Python application behind an AI chat capability?

What to coverPython proficiency is required; Django, React, and PostgreSQL are preferred experience, not stated requirements for this feature. Suggested preparation: describe testable service boundaries and data flow, and discuss those preferred technologies only where relevant to your proposed design.

Behavioural practice

Tell me about a time you shaped a product decision with engineering, product, and design partners.

What to coverThe role calls for cross-functional work and strategic input into product development. Suggested preparation: give a real situation, your contribution and communication with counterparts, and the resulting decision or outcome.

Describe a decision you made before all the information was available.

What to coverThe posting values decisions made with best-available rather than perfect information. Suggested preparation: explain the situation and uncertainty, the action and trade-off you chose, and the result or what you learned.

Tell me about a time you solved an ambiguous technical problem.

What to coverThe posting emphasizes problem-solving in fast-moving, ambiguous situations. Suggested preparation: identify the situation, how you narrowed the problem and acted, and the result—including any remaining uncertainty.

Describe a time user feedback changed your approach to a feature.

What to coverThe role includes refining AI applications based on user feedback. Suggested preparation: give the situation, how you interpreted the feedback and changed course, and the observed result.

Tell me about a time you supported a team through a change in priorities during a Scrum cycle.

What to coverThe posting specifies Agile Scrum experience, teamwork, and strong communication. Suggested preparation: describe the situation, how you coordinated and communicated your actions, and the result for the team.

02

Sharpen your knowledge

Topics to prepare

  • RAG and retrieval design

    The posting asks for real-world RAG experience, including vector embeddings and vector databases. As a revision exercise, sketch how an assistant would retrieve relevant information for a home-service business, then explain how you would assess whether the retrieved material supports its answer.

  • Agent and chat architecture

    The role builds AI agents and chat capabilities and calls for experience with coded agentic frameworks. As preparation, diagram an assistant’s steps from a customer message to a response, identifying where application code should control behavior and handle failures.

  • LLM adaptation and evaluation

    The posting names prompt engineering, fine-tuning, and evaluation. Compare when you would revise a prompt, improve retrieval, or consider fine-tuning; propose a small test set that could distinguish the effects.

  • Production AI and MLOps

    The role includes real-time AI interactions, deployment, monitoring, and evaluation. Trace a request through a production API and identify what you would monitor to investigate latency, errors, and answer quality.

  • Product iteration and decisions

    The posting emphasizes prototypes, user feedback, and partnership with Product and Design. Practice explaining how you would turn feedback on an assistant into a testable change and present the trade-off to those counterparts.

Skills to revise

  • Python agent prototype

    As a practice exercise, implement a small Python assistant with a coded workflow using Pydantic AI, LangChain, or LangGraph. Be ready to explain its control flow; Python proficiency and agentic-framework experience are explicit requirements.

  • Embedding retrieval implementation

    Build a small example that creates vector embeddings, stores them in a vector database, and retrieves context for a response. Inspect an irrelevant result and adjust the retrieval approach; the posting specifically requires hands-on RAG experience.

  • OpenAI and Anthropic API integration

    Practice making a comparable assistant request through each API and handling an unsuccessful response. Explain any integration choices rather than assuming the APIs behave identically; hands-on experience with both is requested.

  • Evaluation-driven refinement

    Prototype a chat feature, run a fixed set of sample requests, record failures, and rerun them after a change. This rehearses the posted responsibility to evaluate AI applications and refine them using feedback.

  • Deployment and monitoring walkthrough

    Prepare a concrete walkthrough of deploying a Python-based AI API and monitoring its real-time behavior, including how you would investigate a degraded response. This maps to the stated production deployment and end-to-end MLOps requirements.

04

Your preparation checklist

  • Map the product use case

    The role builds AI agents and chat capabilities for service businesses. Prepare a brief explanation of how an assistant could help a roofer, landscaper, or cleaner run their business; label your proposed workflow as a practice scenario, not an existing feature.

  • Prepare an AI project walkthrough

    Choose a real project you can discuss and document your contributions, Python implementation, technical decisions, results, and lessons learned. If applicable, show how you used an agent framework and OpenAI or Anthropic APIs; the posting asks for hands-on experience with both APIs.

  • Explain a RAG implementation

    Prepare a diagram or walkthrough covering source data, embeddings, vector retrieval, answer generation, and failure cases from work you have actually done. The role specifically calls for real-world RAG, vector embedding, and vector database experience.

  • Practice a real-time assistant design

    As an interview exercise, sketch an architecture for production chat interactions, including API boundaries, pipelines, scaling choices, and latency trade-offs. This is preparation for the stated responsibility to deploy and scale real-time AI features, not a claim about Topline Pro’s architecture.

  • Build an evaluation and iteration plan

    Draft a one-page plan for testing assistant quality, investigating unexpected behavior, and using user feedback to refine a prototype. Be ready to explain when you would change prompts, retrieval, or a model approach; the role names evaluation, fine-tuning, and iteration.

  • Gather production and collaboration evidence

    Prepare concise examples of deployment, monitoring, and evaluation, plus a decision made with incomplete information alongside Product and Design. State your role, the trade-off, the outcome, and what you learned; Agile Scrum experience is also listed.

  • Write questions for the employer

    Bring questions about the first agent or chat problems to tackle, how user feedback informs priorities, what production performance matters most, and how engineering works with Product and Design. These are questions to ask, not assumptions about current processes.

AI-generated from the job information · Prepared Sep 30, 2026 (UTC)Useful preparation, not a guarantee of eligibility or an offer.

Availability last checked: Nov 4, 2026. Status can change after a check; confirm on the employer’s website. Report an issue · Our checking policy

KEEP EXPLORING

Similar AI jobs

Related skills and specializations in United States. Matched to this role, not your profile.

Explore more jobs
Finding similar opportunities…