[ insights ] > ideas and lessons
What we learn building real systems.
Architecture decisions, costs, integrations and mistakes we see repeated — told from the projects, not from theory.
// public sector · standards · peru
8 min read
NTP-ISO/IEC 12207: the standard the State requires
Mandatory across the National Informatics System since 2017. What the standard covers, what it means when you write a TDR, and what it does not settle.
read the article// contracting · law · peru
9 min read
Software development contracts in Peru
Paying for software does not make you its owner in Peru. What Decree 822 protects, what an assignment clause must say, and what else to assign.
read the article// payments · gateways · peru
13 min read
Which payment gateway to choose in Peru
Why the fee tables you will find are already wrong, the axes the decision is actually made on, and the case where you do not get to choose at all.
read the article// integrations · public sector · peru
12 min read
Validate a RUC: checker and SUNAT lookup
Check the verification digit instantly, calling nobody. And why “active” and “findable” differ once you actually query SUNAT.
read the article// payments · tax · peru
10 min read
Charging international customers from Peru
Stripe does not accept Peruvian merchants. The three real ways out, when exported services are VAT-exempt, and the SUNAT registry nobody remembers.
read the article// compliance · payments · peru
11 min read
PCI DSS for developers
The cost of PCI DSS compliance hinges on one thing: whether the card touches your servers. SAQ A, A-EP or D, and the 2025 change nobody reported.
read the article// wallets · payments · peru
12 min read
How to accept Yape and Plin from your own system
Yape integrates through a gateway; you reach Plin via the interoperable QR. The S/ 2,000 cap, why it is asynchronous, and what the BCRP mandate changed.
read the article// payments · costs · peru
11 min read
What charging online really costs in Peru
The advertised rate is never what you pay. The full math with computed numbers: VAT, the fixed fee, settlement time and chargebacks over S/ 50.
read the article// erp · payments · peru
12 min read
Integrating payments with SAP Business One
A payment is not one object in SAP: it is business partner, invoice and applied payment. Service Layer vs DI API, duplicating retries and SUNAT's CDR.
read the article// payments · integrations · peru
11 min read
How to integrate Culqi payments into your own system
Culqi is the fastest Peruvian gateway to integrate, and that is the trap. CulqiJS v2/v3/v4 are out of support, and webhooks are not optional.
read the article// payments · integrations · peru
13 min read
How to integrate Niubiz into your system
Niubiz chains three tokens to charge once. The real flow, the window where the customer paid and your system missed it, and how to close it.
read the article// public sector · treasury · peru
11 min read
Integrating your collections system with the SIAF
How your collections system reconciles with Peru’s SIAF: why it is not a real-time API, the Recognized and Collected phases, and the real integration.
read the article// decisions · hiring · peru
12 min read
How to choose a custom software company in Peru
What to ask before signing with a custom software company in Peru: red flags, the code-ownership clause, and how to ask for references that help.
read the article// identity · fintech · peru
12 min read
KYC and liveness: digital onboarding and the SBS
The two layers of digital KYC in Peru: verifying the ID with RENIEC and that a living person is behind it. What the SBS requires, and ISO 30107-3.
read the article// integrations · e-invoicing · peru
13 min read
How to integrate SUNAT e-invoicing into your system
How to connect SUNAT e-invoicing to your system or ERP: the SEE modalities, OSE vs. direct issuance, UBL 2.1 and the CDR. With a real case.
read the article// interoperability · public sector · peru
13 min read
What the PIDE is and how to integrate with the State
What Peru’s PIDE is, which State services it exposes (RENIEC, SUNAT, SUNARP), how to request access from the SGTD, and what the integration involves.
read the article// public sector · procurement · peru
16 min read
How to write a TDR to procure custom software
How to write the Terms of Reference for public-sector software in Peru under Law 32069: what to define, code ownership, and the mistakes that sink it.
read the article// architecture · scalability · peru
12 min read
How to keep your system up on your busiest day
Why systems collapse right when they matter most, what downtime costs, and how a virtual waiting room prevents it. With data and a real case.
read the article// integrations · peru
14 min read
RENIEC identity validation in your system
The real modalities of RENIEC’s service, what each query costs, what the agreement requires, and what the technical integration looks like.
read the article// software costs
20 min read
How much does custom software cost in Peru?
Real ranges by project type, how AI changed cost in 2026, the contracting models, and how to ask for a quote you can actually compare.
read the article// software decisions
13 min read
Off-the-shelf vs. custom software: which one wins
How to decide between building your own system or buying one ready-made: real costs, integrations, code ownership and the mistakes we see repeated.
read the article