Available for projects

Christian Paul Reinoso

Senior Consultant Developer

Ambato, Ecuador · Remote worldwide

I design and scale software for banking and fintech. Senior Consultant Developer at Thoughtworks, founder of RinnoTec. React Native and NestJS specialist: I step into complex technical debt and turn it into architecture your team can maintain.

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My own projects

Product, architecture and business: what I build when there's no client involved.

RinnFac

RinnoTec

Multi-tenant electronic invoicing & inventory SaaS

Multi-tenant platform for Ecuadorian SMEs: SRI-compliant electronic invoicing, inventory control and reporting.
Full-stack architecture designed and built from scratch, with per-tenant data isolation and automated deployment.
Founder and lead developer: product, architecture and customer support.

NestJSPostgreSQLReactDockerVisit RinnoTec

PromptLens

Side project

Desktop app for AI prompt engineering

Prompt lab with preview, versioned history and result comparison across models.
Predictable global state and reactive UI built with Zustand on Vite.

ElectronViteZustandTypeScriptView on GitHub

WealthOS

Side project

Automated personal finance, Profit First philosophy

Personal finance system with a Safe-to-Spend algorithm: it automatically separates your savings goal and fixed expenses to tell you exactly what you can spend today without unbalancing your finances.
Strict liquidity control with double-entry bookkeeping: a clear barrier between daily operating capital and untouchable investments.
Financial timeline management: recurring payments, scheduled transfers and visual progress on personal goals.

ReactNestJSPrismaPostgreSQLView on GitHub

Track record

From wallets in Panama to banking platforms at Thoughtworks.

Senior Consultant Developer

Banking

Thoughtworks· Ecuador (Remote)

Jul 2025 - Present

Key achievements

Technical leadership on a credit platform for Mi Banco (Perú), optimizing the financial lifecycle.
Defining Clean Architecture and banking security standards.
Mentoring junior/mid developers and high-bar code reviews.

Software Engineer (Fintech)

Payments

Deuna App· Quito, Ecuador

Apr 2024 - Jul 2025

Key achievements

Microservices development for 'Wallet As a Service' and the payment button.
Tap to Phone (NFC) solutions and backend scalability optimization.
Significant improvement in system response times.

Software Engineer / Tech Interviewer

Tech hiring

NTT DATA Europe & Latam· Quito, Ecuador

Apr 2024 - Jul 2025

Key achievements

Designing and running technical interviews for React/Native and Node profiles.
Component architecture evaluation and technical selection criteria.

Mobile & Frontend Developer

Wallets

Hypernova Labs· Panama (Remote)

Jan 2023 - Mar 2024

Key achievements

Led the development of a mobile Wallet with React Native.
90% general performance optimization applying CDD methodology.
70% bug reduction through strict TypeScript refactoring.

Computer Systems & Informatics Engineer·Universidad Técnica de Ambato·Oct 2017 - Aug 2023

Tech stack

The tools I use daily to take ideas from whiteboard to production.

Languages

TypeScriptJavaScriptSQL

Frontend & Mobile

React Native (Expert)React.jsNext.jsAstroTailwind CSSRedux Toolkit

Backend

Nest.js (Expert)Node.jsSpring BootMicroservicesApache Kafka

Data

PostgreSQLOracleMongoDBRedisTypeORMPrismaSupabase

Cloud & DevOps

AWSAzureDockerCI/CD PipelinesVercel

Tools

GitJiraFigmaVS CodeNeovimTechnical Recruiting

Solutions & services

Concrete ways to work together, no long onboarding, no surprises.

Mobile App Rescue

Deep audit of React Native apps.
Critical bug and crash fixes, performance optimization (60fps).
App Store and Play Store rejection resolution.

Request an audit

Fractional Senior Dev

Consulting via hourly blocks (10h - 20h / month) for agencies.
Senior support for your team: code reviews and technical mentoring.
Scalable Nest.js backend architecture definition.

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High-Performance Web

Corporate sites and landing pages built with Astro.
Instant load times (100/100 on Lighthouse).
Advanced technical SEO for organic ranking.

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Let's talk?

Tell me what you need: audit your mobile app, reinforce your senior team, or design your next product's architecture. I reply personally.

chrispaulrtv@rinnotec.com

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