Myggiz Consulting B.V. — Netherlands
Thirty years of making
systems understand
each other.
I work on the middleware that banks, insurers and energy companies depend on — the SWIFT gateways, the B2B hubs and the message brokers that were built a decade ago and still have to run tomorrow. I did one of Europe's first ISO 7775 to ISO 15022 migrations. The standards have changed twice since; the problem has not.
{1:F01MYGGIZNLA0000000000}
{2:I103DEUTDEFFXXXXN}
{4:
:20:MYG-20260831-0417
:23B:CRED
:32A:260831EUR184250,00
:50K:/NL91ABNA0417164300
ACME LOGISTICS BV
:59:/DE89370400440532013000
NORDWIND ENERGIE GMBH
:71A:SHA
-}
<FIToFICstmrCdtTrf>
<GrpHdr>
<MsgId>MYG-20260831-0417</MsgId>
<CreDtTm>2026-08-31T09:14:22Z</CreDtTm>
</GrpHdr>
<CdtTrfTxInf>
<IntrBkSttlmAmt Ccy="EUR">184250.00</IntrBkSttlmAmt>
<Dbtr><Nm>ACME LOGISTICS BV</Nm></Dbtr>
<Cdtr><Nm>NORDWIND ENERGIE GMBH</Nm></Cdtr>
<ChrgBr>SHAR</ChrgBr>
</CdtTrfTxInf>
</FIToFICstmrCdtTrf>
What I do
Five ways I get called in.
Usually one of these. Often two at once, because the migration and the outage tend to arrive in the same quarter.
-
Integration architecture
Design the target landscape, then get you there without stopping the business. Greenfield or the third attempt at the same programme.
SOA · EAI · ESB · event-driven
-
Middleware consulting
Tuning, upgrade planning and second opinions on the broker estate. I read the flows nobody has opened since the person who wrote them left.
IBM MQ · Message Broker · ITX / WTX
-
Financial messaging
SWIFT gateways, CBPR+ and ISO 20022 migration, SEPA schemes. Message-level validation and the reconciliation that proves it worked.
SWIFT · ISO 15022 · ISO 20022 · SEPA
-
Training & mentoring
Build the in-house capability so the next change does not need me. Hands-on programmes on your own flows, not a vendor slide deck.
ITX / WTX · Sterling B2B · integration practice
-
Level 3 support
The escalation after your team and the vendor have both run out of ideas. Root cause, fix, and the write-up that stops it recurring.
Incident · performance · 24/7 on critical flows
Stack index
What I actually have my hands in.
- ibm.websphere
- MQ · Message Broker / IIB · Transformation Extender
- sterling.b2b
- Integrator · File Gateway · partner onboarding
- financial.messaging
- SWIFT · ISO 15022 · ISO 20022 · SEPA
- cloud
- AWS · Azure · Docker · Kubernetes · iPaaS
- formats
- EDIFACT · X12 · XML · JSON · REST · flat file
- languages
- Java · C++ · PHP · SQL · ESQL
Who I am
One consultant who has seen your estate before.
Myggiz Consulting B.V. is one person: Roberth Lindholm. Based in the Netherlands, trading since 2015, with three decades of middleware work behind it.
I have delivered for major banks, insurers, energy providers and retailers across Europe. The work is rarely glamorous: a SWIFT gateway that has to move to ISO 20022 without a missed settlement, a B2B hub with four hundred trading partners and no documentation, a broker estate whose original authors have all moved on.
I have been certified on Mercator — now IBM Transformation Extender — continuously since 2001, back when certification meant flying to their conference in San Francisco to sit the exam. It is a narrow speciality and a shrinking one, and it happens to sit underneath a great deal of infrastructure that banks cannot switch off.
I take the technical problem seriously and the business one just as seriously, because in integration they are the same problem wearing different clothes. The person you brief is the person who does the work.
Delivered in SE · NO · DK · DE · BE · NL · GB
- 30
- Years in integration
- 2001
- Certified on Mercator / ITX, continuously since
- 2015
- Myggiz Consulting B.V. founded
Contact
Tell me what is not talking to what.
A paragraph is enough to start. It comes straight to me, and I reply within a working day.