Proofseen
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Tech freelance marketplace · France

Freelance work, proven end to end.

Proofseen brings tech freelancers and companies together: rich profiles, missions, messaging, quotes, contracts and escrow payment. A mission is marked verified only when its client confirms it or when it is paid on Proofseen.

Create my freelance profilePost a mission
Follow a mission end to end
  • No rating of people
  • Escrow payment
  • Mission verified by the client or the payment
A developer works at night in front of two screens of code.
Freelancer
Two people talk in a meeting in front of a laptop.
Company

Mission · example

Billing API, TypeScript and PostgreSQL

12 days · remote

  • Contract signed by both sides
  • Funds paid out after approval
  • Verified by the payment · 21 Oct 2026

Illustrative example, fictitious data.

Everything a mission needs, in one place

  • Rich profile
  • CV import
  • Missions and alerts
  • Tracked applications
  • Live messaging
  • Quotes
  • Contract signed online
  • Escrow payment
  • E-invoicing
  • Two-level approval
  • Private talent pool
  • Read API
  • Built for the phone
  • AI visibility, measured

For freelancers

Your work, shown as it is.

A profile anyone can check, missions that say why they are suggested to you, and every step of the mission in one place.

Create my profile

A complete profile. Experience, education, certifications, languages, portfolio. Import your CV: it becomes a draft you review before anything is published.

A developer works in front of two screens of code, in an office.

Under your name or under a reference. You choose what is public.

Available · confirmed 18 Oct

Availability that carries its date. Without a confirmation for 30 days, it shows as “not confirmed”.

Every suggestion says why. No compatibility percentage.

You know where your application stands. Read, shortlisted or not.

Built for the phone. The same space, under your thumb: missions, messages, contract.

Live messages. Attached files and read receipts, in the thread of the mission.

Illustrative example, fictitious data.

A hand signs a contract on a table.

The proof

What is verified, and by whom.

No badge with points. Facts, dated, with their source.

Verified mission
Confirmed by the client, through a signed link and without an account, or paid on Proofseen.
Active company
SIRET checked against the official register, checked again every month, never published.
Proven address
Ownership of a website or a code repository is demonstrated.
URSSAF certificate verified
Checked by a Proofseen operator.
Paid by several companies
Counted on payments made through Proofseen.

The SIRET and the certificate are never published.

How a mission is verified

The journey

One mission, from the post to the proof.

Nine steps, one place. Follow an example mission.

Step 9 of 9 · example

  1. The company posts the mission.

    Skills, day rate, duration, remote work. The mission has its public page, readable by search engines.

  2. The freelancer finds it and applies.

    Full-text search, filters, alerts. The application goes with the profile.

  3. The application is read, then shortlisted.

    The freelancer sees every change.

  4. They talk live.

    Messages, attached files, read receipts.

  5. The freelancer sends a quote.

    The company accepts it in the thread.

  6. The contract is signed by both sides.

    Two timestamped signatures. The legal identities are fixed in the contract.

  7. The company pays, the funds are held.

    They stay in escrow until the approval.

    Test mode: real payments open soon.

  8. The company approves, the freelancer is paid.

    Approval by one or two administrators, e-invoicing in the CII format. Never an automatic payout.

  9. The mission is verified.

    It joins the freelancer's profile, dated, with its source.

Two people sketch the mock-up of a project on a whiteboard.

For companies

Hire on facts, not on a rating.

Describe your need in one sentence: it becomes filters you can see and change. Proofseen rates no one.

Post a missionSee the freelancers

Your search Example

React and TypeScript developer in Lyon, hybrid, available
  • React
  • TypeScript
  • Lyon
  • Hybrid
  • Available

Your need in one sentence. It becomes filters you can see and change. The list follows the order you choose, never a rating.

Facts, not stars. Verified missions, active company, dated availability.

Your missions, your applications, one board. Every application in its place, from the first message to the choice.

You pay, the funds wait. Nothing is paid out without your approval.

E-invoicing and accounting export. In the CII format, with a CSV export of the period you choose.

Two-level approval. Cost centres, and a private pool of the freelancers you have already paid.

GET /api/v1/contracts
Authorization: Bearer ••••••••
{ "ok": true, "data": { "items": [
  { "id": "…", "status": "active",
    "costCenter": "Plateforme", "days": 12,
    "startsOn": "2026-11-02" }
], "next": null } }

Your contracts and billing, read by your tools. API keys per company, revocable.

Illustrative example, fictitious data.

Where we stand

No rating of people. No opaque ranking.

Every match shows its reason.

A mission is suggested to you for facts you can read.

Reviews follow a paid mission.

Shown one by one, dated, with no average.

Your data stays yours.

Export and deletion from your settings.

See the directory, with no rating and no ranking

Visibility in AI answers

When a recruiter asks an AI, does your name come up?

From your space, Proofseen asks OpenAI, Anthropic and Perplexity a recruiter's questions, several times, and counts where you appear. We started with our founder.

0 citations out of 780 answers

Wave J0, 23 and 24 September 2026, protocol fixed before the measure.

Measure reserved for published profiles with a proven address.

Have my visibility measured
780 AI answers, one slot each.Wave J0 · 23 and 24 September 2026 · OpenAI, Anthropic, Perplexity

One row per job, the control jobs under the rule. One slot per answer; its height tells the source cited.

Our founder: cited 0 times out of 780

Isolate a source
Read the tally as a table
780 real answers, split between OpenAI, Anthropic and Perplexity. The most cited sources are malt.fr and linkedin.com. 90.8% of Anthropic's answers cite no source. Our founder appears in none of them.
Source citedOpenAIAnthropicPerplexityTotal
malt.fr1372173231
linkedin.com29293124
github.com / gitlab.com1067
other platforms112931
domains not kept2302649
no source cited6923633338
Total260260260780

Open to all

Open data, with its sources.

Day rates and skills. Median and quartiles, number of answers shown, published only above a threshold. Data in CSV and JSON, under a CC BY licence.Open the barometerA freelancer's net income. Every rate is dated and linked to its official source.Open the simulatorGuides and articles. No figure without its source.Read the blog

Frequently asked questions

Write to us
How does a mission become verified?

In two ways only: the client confirms it through a signed link, without creating an account, or it is paid on Proofseen.

Why no rating and no score?

Because an opaque figure about a person does not say what they did. We show dated facts and the reason for every match.

Is my identity public?

You publish under your name or under a reference. Your legal identity is passed to a company only when a contract is signed.

How does escrow work?

The company pays at signature, the funds stay held, then they are paid out after its approval. No payout is automatic.

What do AI engines see of my profile?

A public page readable without JavaScript, with its structured data. You can measure whether AI engines cite it.

What happens to my data?

You export and delete it from your settings.

Where to start

I am a freelancerShow what you delivered.Create my profileI am hiringFind people on facts.Post a mission