EMV, payments and telco — from card profile to production.

Independent specialist in EMV card personalization, certification and issuance, GSM/SIM, and telco integration. Based in Brazil, working in English and Portuguese.

EMV · GSM · Telco English · Português · Afrikaans Based in Brazil, working worldwide

I've spent my career in the machinery behind cards and SIMs: EMV profile development and dataprep, scheme certification (Mastercard CPV, Visa PVT), personalization bureaus, certification labs, and the modern processor ecosystem — including card programs built on platforms like Pismo and Dock. If a card program is launching, migrating, or failing validation, I've almost certainly seen the specific problem before.

On the telco side I go back to GSM fundamentals — SIM personalization, OTA, and the signalling and messaging layers (SMPP, SIP, USSD) that card and mobile products still quietly depend on.

Today I run a small portfolio of specialist products and consulting practices — the sites below are live and are the best demonstration of how I work. I take a limited number of consulting engagements directly, in English or Portuguese, remote or in Brazil.

What I do

Four things I get hired for

Card program launch & migration

Profile development, dataprep, persobureau and gráfica coordination, processor integration (Pismo, Dock and peers). From BIN setup decisions to first plastic in hand.

idnteq.net →

Certification & remediation (CPV / PVT)

Preparation, sample submission strategy, and fixing programs that failed validation. Fluent in what the labs and schemes actually check.

idnteq.net →

GSM / SIM engineering

SIM/USIM profiles, applets, OTA platforms, operator advisory — from the fundamentals up.

SimProbe — coming soon

Telco integration & custom development

SMPP, SIP/WebRTC, USSD; AI-assisted custom tooling for payment and telco teams.

TelcoBench — coming soon

Engagements are senior-only: the person you talk to is the person who does the work.

Things I've built and run

Proof of work, not screenshots

These are live properties, not a portfolio of screenshots. Open the tools and use them.

IDNTEQ https://idnteq.net →

EMV tools, dataprep products, consulting and training. Free online TLV parser, tag dictionary and APDU decoder.

SimProbe Coming soon

SIM/USIM tooling and GSM engineering — profiles, applets and OTA advisory.

TelcoBench Coming soon

Telco protocol tooling — SMPP, SIP/WebRTC and USSD decoders and utilities.

Mullit mullit.io →

Hosted agent-to-human feedback and review tool for teams building with AI.

Track record

Selected work

A selection, anonymized where client confidentiality requires. Names and references available in conversation.

  • Took an issuer's new scheme product through CPV after two failed submissions — root-caused the profile defects, remediated dataprep, passed on resubmission.
  • Built and ran dataprep for multiple card programs across bureaus and gráficas, covering contact, contactless and instant-issuance flows.
  • Migrated a card portfolio onto a new processor — mapped legacy perso data to the platform's requirements without reissuing the base.
  • Developed SIM/USIM profiles and OTA campaigns for operator programs.
  • Delivered EMV training to issuer and bureau teams in English and Portuguese.

Over the years this work has spanned issuers, personalization bureaus, certification labs, processors and card manufacturers across Brazil, Africa and Europe.

Get in touch

Tell me what's launching or what's stuck

The fastest route is LinkedIn or email. Tell me what you're launching or what's stuck; I'll tell you honestly whether I'm the right person — and if I'm not, I usually know who is.