1.1.2How to improve your Career History
Your Career History is built from what you give it. These steps take about twenty minutes and change the quality of every read and every build that follows.
Start from your densest source, not your most recent one
The instinct is to upload the résumé you last sent out. That is usually the worst source you own. A résumé you sent somewhere was already filtered down for one audience and one opening — the version where you cut the earlier roles to fit two pages, dropped the work that wasn’t relevant to that employer, and compressed three years into a line.
Upload the longest, most detailed version you have instead. If you keep a master résumé, that’s the one. If you don’t, the most recent résumé you wrote before you started tailoring is usually more complete than anything after it.
Everything ArcLens can select from later is bounded by what you put in now. A thin source produces a thin history, and a thin history produces builds that can’t reach for evidence you actually have.
Use all five slots
You can upload up to five sources. Most people upload one and stop, and that single decision does more damage to their results than anything else on this page.
Density is the point. The pipeline merges, deduplicates, and updates in place, so adding a source never costs you what’s already there — there is no downside to filling the slots, and no reason to hold any in reserve.
A useful way to spend them:
| Slot | Source | What it adds |
|---|---|---|
| 1 | Your densest résumé | The spine of the history |
| 2 | LinkedIn export | Framing and roles the résumé compressed |
| 3 | An older résumé | The years the current one cut |
| 4 | Non-employment work | Founder, advisory, board, independent |
| 5 | A project or accomplishment list | Specifics no résumé had room for |
The reason five beats one isn’t volume. Any single document has omissions you’ve stopped noticing, because it was written for one purpose. A résumé built around delivery leadership quietly drops the governance work. A LinkedIn profile written for recruiters drops the internal work nobody outside the company would recognize. An old performance summary you’d never send anyone often holds the most specific evidence you own. Each source covers the others’ blind spots.
There’s a second reason, and it shows up later, in the Build. Different documents describe the same work differently — the same project written once for a hiring manager, once for a promotion packet, once for a LinkedIn audience. Those aren’t redundant. They’re variants, and they give the résumé builder something to choose between. When a posting emphasizes cost discipline and one of your sources happens to describe that program in cost terms, the builder has that version available to select. With one source, there’s one way each accomplishment can be said, and the build has to work with it whether it fits the role’s emphasis or not.
Line up titles and dates where you can
This one is optional. The merge doesn’t require your sources to match, and you don’t need to rewrite anything before uploading. But when the same role carries the same title and the same date range across every source, ArcLens has an easier time recognizing that they’re describing one job — and the evidence from all five lands together and deepens that role rather than sitting loosely across your history.
The mismatches are usually small:
- Your résumé says Technology Portfolio & Estimation Lead; LinkedIn says Director, Portfolio Management
- Your résumé says 2022–2025; LinkedIn says March 2022 – June 2025
- An older résumé ends a role in the year you changed teams, not the year you changed employers
If you’re already opening these documents, it’s a few minutes to make them agree. If you’re not, upload them as they are — a fifth source with a mismatched title is still worth more than a fourth slot left empty.
Cover your whole arc, not just the last three roles
If your career runs longer than the résumé you uploaded, spend a slot on an older one.
This is the step people skip, and it produces the most confusing result. Work that predates your uploaded material doesn’t register as unrecorded — it registers as absent. On a posting that asks about territory you covered fifteen years ago, a history that starts ten years ago will surface a gap. The finding is accurate about the evidence and wrong about you.
You’ll recognize this when it happens: a Read flags something as missing that you know you’ve done. That’s the signal to go back and add a source, not to argue with the score.
Check whether your source says what you did or what you were responsible for
Open what you uploaded and read a few lines. There’s a difference between a duty statement and evidence, and it determines what ArcLens has to work with.
A duty statement describes the shape of a job:
Responsible for vendor management across the program.
Evidence describes something that happened:
Ran submittal and acceptance for three system integrators across a 40-project modernization portfolio.
The second one can be matched against a posting’s demands. The first one can only be paraphrased. A history built from duty statements can describe your job accurately and still fail to cover what a role is asking for, because there’s nothing specific enough to select.
If most of your source reads like the first example, rewrite ten or fifteen lines before you upload. You don’t need to rewrite the whole document — depth in the areas you’re targeting is worth more than uniform polish.
Include the work that wasn’t a job
Founder work, advisory roles, board seats, independent engagements, significant volunteer leadership. For careers past the twenty-year mark this is often where the most distinctive evidence lives, and it’s almost never on the résumé, because résumés are built around employment.
Give it a slot, in whatever form you have it.
The parser currently reads non-employment work less reliably than standard employment records, and in some cases will treat a period of independent or advisory work as a gap. We’re working on it. If you see a gap where you know you were working, that’s what you’re looking at.
Refresh when something changes — and know what a refresh reaches
When you change roles or finish work worth recording, add a new source. The merge is non-destructive.
A refresh applies going forward. It does not re-score Reads you’ve already run. If you’ve added significant evidence and want to know whether it changes an earlier verdict, re-run that posting.