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Development + Automation + AI

Systems that sell and run on their own.

For B2B SMBs that lose sales for lack of time, not for lack of customers. We automate your quotes, your follow-up and your processes. And if the tool you need does not exist, we build it for you.

15 min · no commitment · Direct engineer talk, no sales pitch

fesa-core // telemetry
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[09:14:02] OCR.Pipeline: Ingested supplier invoice #LG-8942 ✓ Extracted 14 line items · Ledger post Sage (48ms)
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[09:14:18] Subastas.BOE: Monitored lot #29481-J Auto-bid scheduled at T-5s · MongoDB replica sync OK
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[09:14:35] WhatsApp.Agent: Inbound quote request (Industrial 400m²) ✓ Spec parsed · PDF quote delivered in 1m 42s
0 ms Drop Frames
100% Audit Uptime
<2 min Lead Response

Audited Production Benchmarks

+81.700 AI invoices processed (100% automated)
154.806 € Audited annual direct savings
+300.000 Auctions indexed in real-time
100% Success rate in critical bids (T-5s)
Experience in projects across: Telecom · Retail · Insurance · Energy · Hospitality
Diagnóstico Operativo

Every hour without a reply is a sale going cold.

If your business bills well but you feel like...

Leads message you... and wait for hours. Meanwhile, they buy from whoever replies first.

Cuello de botella automatizable al 100%

Every quote steals days from you between spreadsheets, calls and back-and-forth.

Cuello de botella automatizable al 100%

Follow-up depends on your memory: opportunities die in silence.

Cuello de botella automatizable al 100%

Your information lives scattered across WhatsApp, emails and spreadsheets that do not talk to each other.

Cuello de botella automatizable al 100%

You're not short on customers. You're short on a system. And building it is cheaper than you think.

Calcular impacto en mi negocio →
Interactive Impact Simulator

Calculate the hours and money your business loses every month.

Slide according to your company's operational volume and see the immediate payoff of an autonomous custom system.

800 docs/month
100 Intensivo 4.000
Manual hours saved / month
120 h / mes
Estimated annual direct savings
20.160 € / año
Average payback period: 1.5 months (ROI habitual +400%)

Autonomous pipeline architecture behind the scenes:

01

Automated Ingestion

Fine-tuned OCR / WhatsApp API / real-time Webhook intake.

02

AI Extraction

Field validation, LLM parsing, deduplication and anomaly checks.

03

Business Logic

Instant SLA compliance, follow-up rules, zero human errors.

04

ERP/CRM Sync

Direct entries in Sage/ERP, closed tickets, 100% automated.

*Based on audited production data from real deployments (e.g. SAT case study with +81k entries and 676% ROI).

Soluciones de Ingeniería

Less chaos. More closed sales.

At FeSa we design the system that sells and operates for you.

Automated Sales

Funnels that qualify on their own, WhatsApp quotes in minutes and automatic follow-up all the way to the close.

Frictionless Operations

We map your processes with BPMN and connect your CRM, billing and sales channels so everything flows on its own.

Applied AI

Assistants that answer your customers 24/7 and do the work of 3 people in seconds.

Custom Development

Websites, apps, SaaS platforms and internal systems. If the tool you need does not exist, we build it.

Use cases

This is what your business can do on its own.

Real examples of sales automation we build for SMBs like yours.

WhatsApp Quotes

The customer asks, the AI calculates and sends the quote in 2 minutes. No waiting, no spreadsheets.

24/7 Lead Response

Every contact gets a reply in seconds. At 3 in the afternoon or 3 in the morning.

Follow-up That Closes

Automatic reminders and messages until a yes or a no. No opportunity forgotten.

Everything in Sync

CRM, billing and sales channels connected: data moves on its own, no copy and paste.

Production Case Studies

Proven engineering in mission-critical systems.

Not theoretical concepts or mockups. Real platforms and integrations operating today with millions of records and audited ROI.

Applied AI & Accounting Multi-Brand SAT & Retail Group
+81,700 entries created without any manual touch

100% Automated Accounting Sync with Sage ERP

Fine-tuned OCR pipeline reading supplier invoices (LG, BSH, Dyson, El Corte Inglés) and directly posting ledger entries into Sage ERP.

  • €154,806/year in direct audited savings
  • 11,754 manual labor hours eliminated
  • 676% ROI · 1.5-month payback period
Python Fine-Tuned OCR Sage ERP API Redis Docker
Fintech & Legaltech diariodesubastas.com · El Mundo Top 100 Ideas Award
+300,000 public and private auctions indexed

Diario de Subastas & .NET Auto-Bidding Engine

Real-time aggregation platform across 25+ official sources. High-precision .NET auto-bidding engine executing bids 5s before deadline with fail-safe rollback.

  • +5,000 active recurrent monthly users
  • Full catalog parallel ingest in <1 hour
  • 100% execution reliability in mission-critical bids
.NET Core Laravel MongoDB Vue.js Python Scrapers
Operations & Customs Major Retailer (Mercadona / Itramit)
-50% operational workload reduction in 24/7 shifts

Automated Customs Declaration (DUA) Engine

Automated processing of customs documents with tariff validation and continuous integration with the official Itramit dispatch platform.

  • Seamless 24/7 execution without backlog
  • Zero error rate in tariff assignments
  • Clearance validation completed in minutes
Node.js BPMN Itramit API Doc AI
Telecom & Public Sector Technical Partner for Telefónica, Atos & Unify
100% AGE state-wide central government deployment

Enterprise VOIP Platform for Ministries (AGE)

Turnkey engineering: directory and VOIP calling platform for ministerial civil servants with LDAP/Auténtica SSO on hardened Dell enterprise infrastructure.

  • State-grade perimeter hardening and encryption
  • Complete replacement of legacy government fax by RightFax
  • High-availability multi-site continuous service
VoIP / SIP LDAP / SSO Linux Hardening Dell Enterprise

How we work with you.

A clear three-phase process to transform the way you operate.

01
Diagnosis

Bottleneck Audit

We analyze where you lose sales and time: unanswered leads, slow quotes, broken processes. We design the ideal flow with BPMN and you get a clear map of opportunities.

02
Execution

Turnkey Implementation

We build your sales and operations system: automations, AI, integrations and custom development (websites, apps, platforms). Without your team stopping for a single day.

03
Growth

Technology Partner (Fractional CTO)

Maintenance, continuous improvement and monthly tech leadership. The system sells better every time and you get a technology team without the cost of an in-house one.

Pablo Fesa

Your partner in the technology trenches.

Hi, I'm Pablo Fesa. I've watched dozens of companies drown in their own success for lack of scalable processes.

Companies that bill well, but where the team works twice as hard as needed. Where leads wait and sales go cold. Where the owner is the only one who knows how everything works.

Throughout my career I have built it all: social networks, SaaS platforms, apps and systems for large companies in telecom, retail, insurance, energy and hospitality. My mission now is to bring that same engineering within reach of small and mid-sized businesses: companies with 5, 15 or 50 employees.

Because the problem is never the technology. It's not knowing where to start.

+10 Años En producción y sistemas críticos
Trato Directo Sin comerciales ni intermediarios
Homelab & Cloud Infraestructura propia y corporativa

Ready to stop losing sales for lack of time?

Let's talk for 15 minutes. Tell me your biggest bottleneck and I'll tell you whether AI can solve it. If you don't walk away with at least one actionable idea, I apologize. — Pablo

No commitment 15 minutes 100% free