Engineering Regional Solutions
Angola is the one market where we can point at a product rather than a proposal. We build and operate Enerxia, our own oil and gas ERP for the Angolan market — thirty-three business domains covering everything from the well to the tax return, with IVA and AGT withholding held as effective-dated configuration, SAF-T exported from the same entries that feed internal reporting, and ANPG local content scored inside the system rather than argued in a meeting.
Specialized Solutions We Deliver
Effective-Dated Tax Rules
IVA, AGT withholding and approval thresholds held as versioned configuration, so a March invoice stays calculated under March's rule after the rule changes in June.
SAF-T and Electronic Invoicing
The standard accounting file exported from the same entries as internal reporting — one source, not a separate monthly reconciliation job.
ANPG Local Content
Local content regime and supplier qualification as their own domain, calculated and auditable rather than assembled in a spreadsheet before each submission.
AOA and USD Multi-Currency
Decimal amounts carrying transaction currency, base currency, rate, rate source and rate date on every movement. Never floating point.
Offline-First for Remote Sites
Synchronisation built for FPSOs, remote fields and inspection crews working on intermittent bandwidth, where the entry has to survive the connection dropping.
Technical Infrastructure Blueprint
Angolan engagements are shaped by obligations that determine the data model, so regulatory structure is settled before any screen is designed.
Regulatory Structure First
Tax rules, local content and reporting obligations are modelled as dated configuration during design, because retrofitting effective dating later means rewriting the data model.
Nothing Transactional Is Deleted
Records are cancelled, voided, reversed or versioned. An audit trail is only worth as much as the weakest permission on it.
Every Mutation Audited
Append-only audit with a correlation id threading a whole workflow, and an application role that holds no UPDATE or DELETE on the audit tables.
Hosting Decided on Evidence
With a national data centre operating since April 2026, in-country hosting is now a real option — assessed against SLA, certifications and a tested recovery drill rather than assumed.
Why Partners Select Wise Hustlers
A Product, Not a Pitch
Enerxia is ours: 33 business domains, 258 data models, 167 test suites. You can be walked through it module by module rather than shown slides.
Written in Portuguese
Our Angolan engineering writing is published in Portuguese because that is the language of the market, not translated from English afterwards.
Honest About Adoption
Enerxia is in production but in pilot — two companies, thirty-six users. We state that everywhere rather than implying sector adoption we do not have.
Regulatory Depth
IVA, SAF-T, retention, local content and production sharing are domains we have built, not terms we have read about.
Frequently Asked Questions
Do you actually have a product in Angola?
Yes — Enerxia, an oil and gas ERP we built, operate and maintain. It is in production in pilot with two companies and thirty-six users. That is a genuine system and a genuinely early adoption stage, and we say both.
How do you handle changes to Angolan tax rules?
Tax rules are versioned configuration carrying effective_from and effective_to dates, not code. A rate change is a configuration edit, and documents issued before it stay calculated under the rule that applied on their date.
Is your software certified by the AGT?
Presidential Decree 71/25 requires invoicing software certified or validated by the AGT. We implement dated IVA and withholding rules and SAF-T export; certification status is a question to put to us directly for your specific deployment rather than one to assume from a web page.
Can data be hosted inside Angola?
Since the national data centre opened in April 2026, yes — and it is now worth assessing. We are not aware of a general legal localisation requirement, so confirm with Angolan counsel before treating in-country hosting as an obligation rather than a choice.
Let's Pressure-Test It
Book a free call and tell us what you're building. Worst case, you leave with honest feedback and a clearer plan. Best case, you leave with a team that ships.