Capability dossier · Updated August 2026

Totbits
Solutions

Software development, consulting and AI from Mallorca.

Team
Pau Maraví · Eduardo Rojas
Based in
Palma de Mallorca (Spain) · remote
Combined experience
10+ years
Languages
Spanish and Catalan native · professional English
Contact
paumb85@gmail.com
erescobar08@gmail.com
Sectors
Banking · insurance · automotive · loyalty · ERP and tax compliance · marine

What we do

Distributed backends

Event-driven architectures on Kafka and RabbitMQ: idempotency, retries, dead-letter queues and event replay when something has to be redone.

AI agents on real processes

Document extraction, accounting classification and human-in-the-loop validation. With traces, cost control and a knowledge base that improves with every document.

ERP and tax compliance

Full sales and purchasing cycle, accounting, catalogue and warehouses. VeriFactu filing to the Spanish tax agency, VAT and withholding tax, multi-company and multi-tenant.

Infrastructure as code

AWS with Terraform end to end: VPC, ECS and EKS, RDS, queues, secrets and observability. Continuous deployment with GitLab CI and GitHub Actions.

Stablecoin payments and settlement

Intercompany settlement and payments in EURe on EVM networks, with contracts, reconciliation and an accounting trail.

Legacy systems

Migrating and evolving live platforms without taking the service down, including third-level support on systems thousands of people already use.

Profiles

P

Pau H. Maraví Busquets

Full-stack · AI and blockchain

Full-stack developer with 10+ years across financial platforms, real-time dashboards and, since 2022, product work in AI and blockchain. Handles architecture, code and deployment on the same project. Has led a team of six in banking.

Career

  • Totbits SolutionsPartner. Product, AI and full-stack development.
  • FreelanceDistributed, event-driven architectures, from design to production deployment.
  • DevoActiveboards, a reactive dashboard platform for real-time monitoring. React and RxJS.
  • Babel SIFrom full-stack developer to team leader of six. Financial platforms and payment features for Bankia and Santander Consumer.
  • SoftTelecomProcessed ~9 GB of data a day with Elasticsearch and Logstash. Wan2Cloud provisioning application.

Highlights

  • Winner of the Rootstock hackathon with BitChill, an automated recurring-purchase dApp.
  • Finalist at Actúa UPM (PassTicket) and IoT by Carriots (Smart Collar Pet).
  • Intercompany stablecoin settlement running for 7 companies.

paumb85@gmail.com · +34 687 925 363
paumb85.github.io
Spanish and Catalan native · English B2

E

Eduardo Rojas Escobar

Software architect · Backend

Computer science engineer with 10+ years in mission-critical backends: banking, insurance and automotive. Specialised in Java and the Spring ecosystem, domain-driven design, microservices and CI/CD. Has led teams and provided third-level support on systems with thousands of daily users.

Career

  • Totbits SolutionsPartner. Backend architecture and infrastructure.
  • CoaraConvercus loyalty platform and PlanM8. Java 21, reactive Spring Boot, Kafka, Kubernetes.
  • Aleph EngineeringBackend for the Porsche Taycan infotainment system. Calendar and drive-together live worldwide.
  • BraimixTeam leader and full-stack developer of the freelancer marketplace: REST API, frontend and admin panel.
  • SIGES · ESENArchitect and backend developer of the Cuban state insurer's management system. Team of 10 developers.
  • Quarxo · National Bank of CubaTeam leader of the credit letters and debt platform. 14 subsystems, 30+ developers.

Highlights

  • Services running today in Porsche Taycan cars all over the world.
  • Replaced a FoxPro banking system with a production platform without losing day-to-day operations.
  • Architecture and CI/CD defined from scratch on two regulated platforms.

erescobar08@gmail.com
Spanish native · professional English

Projects

Almeebar ERP

Pau Eduardo

A complete multi-company ERP: sales, purchasing, accounting, catalogue, warehouses, price lists, projects and subscriptions, with editable document templates and an integration API. Includes VeriFactu filing to the Spanish tax agency with a verification QR, OCR document scanning and a conversational sales agent with semantic search over the catalogue.

Sector
ERP and Spanish tax compliance
Role
Product and full-stack (P) · backend and infrastructure (E)
Stack
Django 5 · DRF · PostgreSQL + pgvector · Celery · Redis · Next.js 15 · React 19 · MUI · Playwright · Terraform · AWS ECS

Purchase invoice agent

Pau Eduardo

Six microservices that receive supplier invoices by email, extract them with OCR and vision models, classify them for accounting and post them to the ERP. When the agent is unsure it asks the user by email or web form and reclassifies with the answer. It learns from every invoice, detects duplicates and validates tax IDs and arithmetic before accepting anything.

Sector
Accounting automation
Role
Pipeline and agent design (P) · infrastructure and services (E)
Stack
Python · RabbitMQ · GPT-4 and GPT-4 Vision · Tesseract and pdfplumber · PostgreSQL · Alembic · AWS SES, S3, SQS and RDS · Next.js

Intercompany stablecoin settlement

Pau

Payments in Monerium EURe on Polygon through a Kafka pipeline. Over 400 transactions a month across seven companies in the same group, reconciled and traceable.

Sector
Payments
Role
Architecture and development
Stack
Kafka · Monerium EURe · Polygon · ERC-20 · Ethers.js

MCP server for DeFi analysis

Pau

A Rootstock contract reader accessible from a language model: token prices, stablecoin health and lending rates queryable in natural language.

Sector
DeFi
Role
Architecture and development
Stack
MCP · Rootstock · Web3 · TypeScript

Convercus

Eduardo

A B2B loyalty platform with around twenty microservices: accounts, memberships, coupons, transactions, rule engine, rating engine, product catalogue and wallet. Fully reactive and event-driven, with event replay to reprocess history and third-level support on live operations.

Sector
Retail and loyalty
Role
Backend and third-level support
Stack
Java 21 · Spring Boot 3 · WebFlux · Spring Cloud Stream · Kafka · reactive MongoDB · Elasticsearch · EKS · Helm · Terraform · GitLab CI

PlanM8

Eduardo

Planned maintenance for boats: engine-hour meters, recurring tasks, usage- and calendar-based triggers, PDF reports and paid subscriptions. Background work with queues and its own scheduler.

Sector
Marine
Role
Backend
Stack
NestJS · MongoDB · BullMQ · Redis · NATS · Stripe · Puppeteer · Sentry · Elastic APM · Docker · Helm

Skills

Pau Eduardo Both