Now onboarding engineering engagements · Q2 2026
Scales under real production load Security enforced at every layer Built for compliance from day one Distributed systems by default 48h engineering response SLA

We engineer AI powered SaaS systems that operate at real scale

SaaS Platforms Backend APIs Payment Systems AI Integrations Crypto Rails

We build Laravel, Node, Python and Go backends with REST and GraphQL APIs. Payments across Stripe, PayPal, CoinPayments, BitPay and more — integrated, reconciled and production ready from day one.

50M+
API requests processed
99.99%
Uptime SLA
100+
Production deployments
10ms
Queue latency (p95)
Domains we build for
Fintech SaaS Platforms Payments & Crypto AI Systems API Integrations ERP (NetSuite)
API
SAAS
Analytics
Automation
AI
Payments
Cloud
Database
Queue
SE
Why teams trust our engineering
Production SaaS systems delivered
API integrations at scale
Stripe, crypto & fiat payment engineering
Automation & backend systems
DevOps-ready architecture
Fast engineering turnaround
02 · Payments & Crypto Engineering

Real gateway experience.
Fiat & crypto in production.

Complete payment infrastructure. Checkout, Webhooks, Settlement, Refunds, Reconciliation, and Ledgering.

PCI-aware flows Webhook signing Idempotent ledger
Stripe
Cards · Subscriptions · Connect
FIAT · Live
PayPal
Checkout · Payouts · Wallet
FIAT · Live
Authorize.net
Cards · Fraud tools · ARB
FIAT · Live
Razorpay
UPI · Cards · Webhooks
FIAT · Live
Adyen
Global acquiring · Multi-rail
FIAT · Live
M-Pesa
Mobile money · STK push
FIAT · Live
eGHL
SEA gateway · FPX · Cards
FIAT · Live
Square
POS · Payments · Invoices
FIAT · Live
Coinbase Commerce
On-chain checkout · USDC
CRYPTO · Live
NowPayments
Auto-convert · Webhooks
CRYPTO · Live
CoinPayments
Multi-coin · Wallet infra
CRYPTO · Live
BitPay
BTC · Invoice settlement
CRYPTO · Live
Cryptomus
Custody · Multi-chain
CRYPTO · Live
Blockonomics
BTC · Self-hosted checkout
CRYPTO · Live
Cybrid
Crypto APIs · Fiat ramps
CRYPTO · Live
DePay
Web3 payments · Wallet connect
CRYPTO · Live
Need a custom gateway integration?

We build custom checkout flows, webhooks, reconciliation and ledger systems.

Free Discovery Call
03 · Engineering Capabilities

Production-grade systems.
Engineered, not assembled.

Every system we ship is observable, secure, multi-tenant ready, and instrumented from day one. No prototypes hardened later. Engineering depth, applied from the first commit.

CAP / 01

SaaS Platform Engineering

Multi-tenant architectures with billing, RBAC, audit logs and tenant isolation built in.

  • Tenant isolation (schema/row)
  • RBAC & audit logging
  • Usage metering & billing
CAP / 02

API & Integration Layer

REST, GraphQL and event-driven services with versioning, rate limits and SDK generation.

  • OpenAPI 3 + typed SDKs
  • Webhook delivery + retries
  • API key & OAuth flows
CAP / 03

AI Systems & RAG

Production AI: embeddings, vector search, agent orchestration, evaluation pipelines.

  • RAG with citation grounding
  • Agent + tool orchestration
  • Eval harness & guardrails
CAP / 04

Automation & Workflows

Durable jobs, event pipelines, cron orchestration.

  • Idempotent job pipelines
  • Zapier / Make / n8n bridges
  • Audit-grade event log
CAP / 05

Cloud Architecture & DevOps

Infrastructure-as-code with zero-downtime deploys.

  • Terraform + GitOps
  • Blue/green & canary deploys
  • Logs · metrics · traces
CAP / 06

Payments & Billing

Stripe, PayPal, crypto rails with full lifecycle billing.

  • Stripe + PayPal + crypto
  • Metered & seat-based plans
  • Reconciliation pipeline
04 · Engineering Focus

Systems that ship.
Built for production, not demos.

We design and deliver production systems that are maintainable, observable, and scalable from day one — not prototypes that need rewrites later.

Fully custom architecture No platform dependency Ownership from day one
Multi-tenant SaaS Architecture
Isolation, billing, access control

Secure tenant boundaries with RBAC, usage tracking, and auditability built into the core system.

API Engineering
Stable, versioned, contract driven APIs

Well defined APIs with OpenAPI specs, SDK generation, authentication flows, and resilient webhook delivery.

AI / LLM Systems
Retrieval, orchestration, evaluation

Production AI pipelines with RAG, tool using agents, evaluation frameworks, and observability for cost and performance.

Cloud & Infrastructure
Scalable, observable, automated

Infrastructure as code with CI/CD, deployment automation, monitoring, alerting, and reliability patterns built in.

05 · Modular Engineering System

SaviaExperto
Modular Engineering System

A config driven, production tested modular engineering framework built as composable system components designed to scale, integrate, and evolve.

CORE C-001

Data Architecture & Schema Evolution

Enterprise-grade database design with normalized schemas, indexing strategies, and version-controlled migrations engineered for long-term stability, auditability, and scale.

MySQL Postgres MongoDB Supabase Redis
CORE C-002

API Systems & Secure Integrations

Scalable API ecosystems with strict versioning, authentication layers, and deep integrations across CRMs, payment rails, and identity systems.

REST GraphQL OAuth SAML
CORE C-003

Multi-Tenant SaaS Architecture

Scalable SaaS foundations with tenant isolation, RBAC, billing engines, and distributed backend orchestration.

Laravel Node.js Next.js Go Python
AI A-001

Intelligent Automation Systems

LLM-powered automation pipelines replacing repetitive operations with context-aware reasoning and adaptive workflows.

OpenAI LangChain RAG
AI A-002

Autonomous AI Agents & Orchestration

Multi-agent systems with structured reasoning, tool execution, memory layers, and controlled human-in-the-loop execution.

LangGraph Agents Tooling
AUTOMATION AU-001

Integration & No-Code Bridges

Automation bridges enabling safe integration with Zapier, n8n, and external workflow tools.

Zapier TypeForm n8n
AUTOMATION AU-002

Data Extraction & Pipelines

Scalable scraping and automation systems for structured data extraction and real-time processing.

Scraping Headless Puppeteer Selenium
PAYMENTS P-001

Payment Gateway Integrations

Secure integrations with global payment providers including subscriptions, one-time payments, and webhooks.

Stripe PayPal Adyen Razorpay Webhooks
PAYMENTS P-002

Billing & Subscription Systems

Subscription lifecycle management including metering, invoicing, retries, and financial reporting.

Billing Invoices Tax
CRYPTO P-004

Blockchain Payment Gateways

Crypto payment systems with real-time transaction monitoring, wallet handling, confirmations, and automated settlement flows.

Cryptomus BitPay CoinPayments NOWPayments
DEVOPS D-001

CI/CD & Deployment Pipelines

Automated build, test, and deployment pipelines ensuring rapid and reliable delivery.

GitHub Actions Docker CI/CD
DEVOPS D-002

Cloud Infrastructure (AWS)

Scalable cloud architecture using compute, storage, and networking for high availability systems.

EC2 S3 RDS
NETSUITE N-001

NetSuite Custom Development

Custom workflows, scripts, Suitelets, Restlets and saved searches for complex enterprise operations.

SuiteScript Suitelets Searches
NETSUITE N-002

ERP & SaaS Integrations

Seamless integration between NetSuite and external SaaS platforms with real-time synchronization.

REST APIs ETL Sync
06 · Technology Architecture

An engineered ecosystem.
Built to ship, scale, and operate in production.

Every layer of the stack is intentionally selected, deeply integrated, and optimized for real world systems at scale.

Frontend Systems

L1
React Next.js TypeScript TailwindCSS Bootstrap Vite JavaScript PWA

Backend Engineering

L2
Node.js PHP Laravel Go Python Rust Microservices Monolith (Modular)

API Layer

L3
REST GraphQL gRPC OpenAPI Webhooks tRPC API Gateway

Data Systems

L4
MySQL PostgreSQL MongoDB Redis DynamoDB Elasticsearch pgvector ClickHouse

Infrastructure & DevOps

L5
Docker Kubernetes Terraform CI/CD Pipelines GitHub Actions AWS GCP Nginx

Payments & Financial Rails

L6
Stripe PayPal Adyen Braintree Square Razorpay eGHL ApplePay GooglePay Cryptomus CoinPayments BitPay SDKs&APIs

AI & Automation Layer

L7
OpenAI Anthropic LangChain LangGraph Vector Databases Pinecone n8n Custom AI Agents

Observability & Operations

L8
Logging Pipelines Monitoring Prometheus Grafana Sentry Slack Notion Jira ClickUp

External Integrations

L9
Twilio SendGrid HubSpot Salesforce NetSuite Stripe Connect OAuth Providers
07 · Projects Showcase

Live product feed —
real systems in production.

A continuously running stream of work we've shipped across SaaS, payments, telecom, automation and crypto. Hover or touch to pause.

SaaS · Wellness
Live

SacredOhms Retreat Platform

Multi-tenant SaaS for retreat operators — bookings, room inventory, guest journeys, on-site payments and host dashboards.

Tenants 40+
Uptime 99.95%
Laravel MySQL Stripe Twilio
SaaS · Greetings
Production

ToBreCards — Greeting Cards

Digital greeting cards platform — shareable links, printable formats, personalized messages and bulk sending at scale.

Cards / mo 120k
Latency < 90 ms
Node.js MongoDB PDF Gen S3
SaaS · Sports
Enterprise

Whitslewise Voting Platform

Video-assisted review system for football decisions — incident uploads, community voting and consensus-based outcomes.

Votes / match 8k+
Concurrency 12k
Laravel MySQL Tailwind AWS S3
Data · Dashboards
Production

Amazon KPIs Dashboard

Operational KPI engine for Amazon sellers — SP-API ingestion, anomaly detection, P&L roll-ups and per-SKU cost tracking.

SKUs tracked 250k
Refresh 5 min
Python SP-API Postgres Airflow
SaaS · Telecom
Live

PulseMobile SaaS Platform

MVNO-grade activation, plan management, top-ups and customer self-service portal with carrier integration.

Activations / d 3.2k
Carriers 6
Laravel) Vue Stripe Carrier APIs
SaaS · Insurance
Production

MobilityProtect Insurance

Quote-to-bind insurance flows for mobility — risk scoring, policy lifecycle, claims intake and partner APIs.

Quotes / d 9k
Bind rate 18%
Laravel PostgreSQL Stripe DocuSign
Automation
Production

Workflow Automation Engines

Custom workflow engines bridging CRMs, ERPs and SaaS tools — event-driven, idempotent, fully audited.

Runs / mo 1.4M
Failure rate < 0.2%
Node.js Zapier Webhooks REST
Crypto · Payments
Enterprise

Crypto Payment Integrations

On-chain & off-ramp payment flows — wallet validation, multi-chain settlement, fiat conversion and reconciliation.

Chains 7
Settlement T+0
Solidity Web3.js USDT BTC
CMS · Web
Production

WordPress Engineering

Custom plugins, headless WP setups, performance hardening and bespoke integrations beyond standard themes.

Sites shipped 60+
TTFB < 200 ms
PHP WP REST WooCommerce Redis
Migration
Production

Laravel Migration & Upgrade

Legacy-to-modern Laravel migrations — version upgrades, schema refactors, queue migrations, zero-downtime cutovers.

Apps migrated 35
Downtime Zero
Laravel PHP 8 MySQL Redis
Fintech · Ledger
Live

Real-time Reconciliation

Stripe + bank rails + crypto reconciled into a single ledger — books close in minutes instead of days.

Tx / d 420k
Close time 6 min
Postgres Kafka Go Stripe
SaaS · Logistics
Live

SaharaGateway

Cross-border shipping platform enabling Amazon purchases delivery to African regions where direct shipping is unavailable.

Orders / mo 25k+
Regions 12
MERN MongoDB Stripe M-Pesa Mobile Payments
Enterprise · HR
Production

HRMS Internal System

Internal HR system with authentication, employee lifecycle management, payroll hooks and audit logs.

Employees 5k+
Requests / d 18k
Laravel MySQL Redis RBAC
Automation · HR
Production

Attendance Generator System

Automated attendance generation with shift rules, biometric sync, and anomaly detection.

Logs / d 100k+
Accuracy 99.2%
Node.js MongoDB Cron Jobs Webhooks
Automation · HR Tech
Live

ATS Resume Parser System

AI-powered ATS system extracting structured candidate data from resumes with ranking & scoring.

Resumes / d 30k+
Accuracy 96%
Python NLP MongoDB Queue System
Fintech Automation
Production

Netsuite Invoicing Automation

Automated invoice generation, syncing Netsuite billing with external payment systems and reconciliation.

Invoices / d 12k
Sync time < 2 min
API Integration Node.js Netsuite Webhooks
Automation · Documents
Production

Office to PDF Automation Engine

Puppeteer-based system converting Office files, reports, and dynamic HTML into high-quality PDFs at scale.

Docs / d 80k+
Render time < 1.5s
Puppeteer Node.js Queue System S3
08 · Global Engineering Feedback

Production systems trusted by founders
across real-world deployments.

SaviaExperto engineers production-grade backend systems, payment infrastructure, and automation engines powering real SaaS, fintech, and platform operations globally.

09 · Frequently Asked Questions

Answers from the SaviaExperto team.

Categories

What kind of clients do you typically work with?
Funded SaaS startups, scale-ups and enterprise teams that need infrastructure-grade engineering. Most engagements involve replacing legacy code, hardening a launched MVP, or building a net-new platform from scratch.
How do engagements typically work?
We start with a 2-week discovery sprint to scope, architect and de-risk. From there we run as embedded engineers — typically 2–6 senior people — shipping in weekly increments with full visibility.
How long does a project usually take?
A solid v1 SaaS platform takes 8–14 weeks. AI / RAG systems run 6–12 weeks. Integrations and automation modules ship in 2–6 weeks depending on scope.
How is pricing structured?
Two models: fixed-price for scoped deliverables or monthly retainers for embedded engineering capacity. We send a clear proposal after discovery.
What payment terms do you accept?
Wire transfer, Stripe, ACH, and select crypto (USDC). Fixed: 50/50. Retainers: monthly in advance.
Do you offer refunds?
Yes. See Refund Policy. Discovery sprints carry a satisfaction guarantee.
Which third-party services can you integrate?
Anything with an API: Stripe, PayPal, Twilio, SendGrid, HubSpot, Salesforce, Shopify, Slack, Zapier, OpenAI, Anthropic and more.
Do you build NetSuite customizations?
Yes — SuiteScript, Suitelets, Restlets, scheduled scripts, SDF deployment, and full ERP integrations.
Can you handle webhook delivery at scale?
Yes — retries, queues, DLQs, replay UI, signed payloads, and high-throughput event systems.
What's your default tech stack?
TypeScript, Next.js, Node, Postgres, Redis, Laravel, Python/Go where needed, deployed on AWS/GCP with Terraform.
Do we own the source code?
Yes — 100% ownership from day one including repo, infra, and documentation.
How do you handle security & compliance?
Encryption, RBAC, audit logs, secret management, dependency scanning, and SOC2/HIPAA-ready architecture patterns.
Q2 2026 — Limited Engineering Capacity

Let’s build systems
that actually scale.

We design and ship production grade infrastructure, backend systems, SaaS platforms, and automation layers built for real load, not demos.

· 48h engineering response window · NDA ready from first message · Architecture first discussions only
10 · Engineering Execution Flow

From architecture to
scaled production systems.

A structured execution flow that transforms architecture into reliable, scalable production systems.

01

System Architecture & Domain Design

We define system boundaries, domain models, and data flow before implementation — focusing on constraints, scalability, and long-term maintainability.

02

Data Layer & Infrastructure Design

Database modeling, indexing strategy, infrastructure planning, and deployment topology designed for real production load, not prototypes.

03

Backend System Implementation

Core APIs, business logic, queues, and workers implemented with reliability, observability, and fault tolerance as defaults.

04

External System Integration

Payments, third-party APIs, webhooks, and event systems engineered with retries, signing, idempotency, and audit safety.

05

Verification & Performance Engineering

Unit, integration, and load testing combined with profiling, bottleneck detection, and performance budgets.

06

Deployment & Operational Delivery

CI/CD pipelines, zero-downtime deployments, and observability setup ensuring the system is fully operable by your team.

11 · Get In Touch

Let's engineer
your next system.

Tell us what you're building. We respond within 48 hours with a clear next step.

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We'll get back to you within 48 hours. Talk soon.
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Office
30 N Gould St Ste N
Sheridan, WY 82801
United States
Hours
Mon — Fri · 09:00 — 18:00 CT
Async-friendly · Global delivery
Address
30 N Gould St Ste N Sheridan, WY 82801