AI Engineering5 min
Building a job recommendation engine
The hard part of a job recommender is not the model. It is that the inventory expires, the user has no history, and the feedback you collect is biased by what you showed.
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Page 12 of 17 · 323 guides in total
AI Engineering4 min
Designing a relevance score
A relevance score is a promise to the user. If 80% does not mean something specific and consistent, the number is decoration.
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Building semantic job search
Semantic search feels magical in a demo and disappoints in production for reasons that are entirely predictable — and mostly avoidable.
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Evaluating a matching model
Most teams cannot tell whether a change improved their matching. That is not a metrics problem — it is that nobody built the evaluation set first.
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LLM re-ranking for job listings
A model ranks job listings well and inconsistently. Both halves of that sentence determine how you should use it.
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Building a career assistant on RAG
A career assistant is a retrieval problem wearing a chat interface. Most of the work is deciding what it is allowed to see.
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A job agent over MCP
MCP makes your job tools portable across clients. It also means a component you did not write is deciding what your agent can see.
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Agents that run for weeks
A job search is not a request. It runs for weeks, across restarts and deploys, and every assumption that suits a request breaks.
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Multi-agent job search
Multiple agents are worth it when the subtasks genuinely differ. They are not a way to make one unreliable agent reliable by cloning it.
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Deciding what is worth applying to
Scoring a job is easy. Deciding whether it is worth the ninety minutes a good application costs is a different question entirely.
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Learning what someone actually wants
The risk is not failing to learn. It is learning too fast from too little and locking someone into a version of themselves from three weeks ago.
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Tool design for a job search agent
An agent is mostly its tools. Most agent failures that look like reasoning problems are tool design problems wearing a disguise.
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A job search agent as a graph
The reason to model an agent as a graph is not elegance. It is that a job search runs for days and something will crash in the middle.
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Memory for a job search agent
Memory is not a bigger context window. It is deciding what is worth keeping, and being willing to throw the rest away.
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One agent or several?
Most teams reach for multiple agents too early, for a problem that was really a tool design problem.
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Automating Greenhouse applications
The form is the easy part. What decides whether the application is any good is the custom questions the employer added underneath it.
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Automating Lever applications
The parse-and-prefill step is the whole game here: it saves the candidate effort and quietly introduces the errors a recruiter will read.
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Automating Workday applications
Workday is where most application automation quietly stops working, and the reasons are structural rather than technical.
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Agents that operate a computer
Operating a screen is the most general form of automation and the most expensive. Use it where nothing else reaches, not as a default.
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Navigating an applicant tracking system
Applicant tracking systems are a small number of products dressed in thousands of skins. Detect the product and most of the difficulty disappears.
Read morePut the advice to work
Reading about ATS screening helps. Running your actual resume through one helps more.
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