AI Engineering6 min
Reliable browser automation
Almost every flaky automation bug is the same bug: acting on a page that has moved on since you looked at it.
Read moreCareer guides thatrespect your time
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Page 5 of 11 · 205 guides in total
AI Engineering5 min
Testing a browser agent
You cannot assert an exact sequence against a non-deterministic system, and you cannot run your suite against real employers. Both problems have the same answer.
Read moreAI Engineering5 min
A universal ATS agent
"Universal" is the wrong goal. A handful of systems carry most volume; the design that works optimises those and degrades gracefully for the rest.
Read moreAI Engineering5 min
Handling any application form
The variety is unbounded but not random. Most novel questions are old questions in new words, and exploiting that is what makes the problem finite.
Read moreAI Engineering5 min
Building a resume parser
The model is the easy part. Getting readable text out of a two-column PDF is where resume parsers actually fail.
Read moreAI Engineering5 min
Extracting skills from a CV
The skills section is the least reliable part of a CV. The real evidence is in the experience bullets, and extracting it is a different job.
Read moreAI Engineering4 min
Extracting skills from a posting
A job description is a wish list written defensively. Treating every item on it as a requirement is why matching systems reject candidates who would have got the job.
Read moreAI Engineering5 min
Calculating a match score
A single percentage is the least useful thing you can produce. The same 72% can mean a near-perfect fit in the wrong country or a mediocre fit next door.
Read moreAI Security5 min
Stopping a CV from inventing things
A fabricated line on a CV is not a model quality issue for the vendor. It is a credibility problem for the candidate, in an interview, months later.
Read moreAI Engineering5 min
A resume tailoring system
Generating one tailored CV is a prompt. Generating hundreds and still knowing what each one claimed is a system, and the difference is version control.
Read moreResumes & ATS5 min
Tailor every CV, or not?
Tailoring was always good advice that almost nobody followed, because it cost an hour a job. That constraint has gone — which changes less than you would think.
Read moreAI Engineering5 min
Building a cover letter generator
Most generated cover letters fail for one reason: they were produced from the job description alone, which every other applicant also had.
Read moreAI Engineering5 min
Matching with embeddings
Most embedding matching disappoints for one reason: embedding whole documents. What you embed matters more than which model you use.
Read moreAI Engineering5 min
Matching a CV to a posting
Three techniques, each wrong in a different direction. Used in the right order they cover each other; used alone, each fails predictably.
Read moreAI Engineering5 min
Vector databases for job matching
Most job boards do not need a dedicated vector database. Knowing when you cross that line saves an unnecessary piece of infrastructure.
Read moreAI Engineering5 min
Keyword or semantic search?
Semantic search is not a replacement for keyword search. They fail on opposite inputs, which is precisely why the good systems run both.
Read moreAI Engineering5 min
Job search on Postgres and pgvector
Keeping vectors next to the rows they describe removes a whole category of problems — chiefly that your two data stores can disagree.
Read moreAI Engineering6 min
What embeddings fix, and what they do not
Embeddings solve the cold-start problem that sinks most job recommenders — and then quietly create a filter bubble if that is all you use.
Read moreAI Engineering5 min
Job matching on plain Postgres
You can get a long way with one database and no new infrastructure — and knowing exactly how far is what keeps the architecture honest.
Read moreAI Engineering5 min
A recommender built on pgvector
The whole recommender fits in one database: a profile vector, a filtered similarity query, and a scheduled job that keeps both honest.
Read morePut the advice to work
Reading about ATS screening helps. Running your actual resume through one helps more.
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