Available for new professional opportunities

Juan Cruz Lima

Full Stack Developer | Backend Specialist & Lecturer

Over 5 years engineering scalable backend services, robust APIs, and modern full stack web applications across logistics, education, and public sector domains.

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profile.ts

TypeScript

1export const developer: FullStackProfile = {

2name: "Juan Cruz Lima",

3focus: "Full Stack · Backend Specialist",

4experience: "+5 years in production",

5domains: ["Logistics & OMS", "EdTech", "Public Sector"],

6stack: {

7backend: ["PHP", "Python", "Node.js"],

8database: ["PostgreSQL", "MySQL"],

9frontend: ["TypeScript", "Next.js", "React"],

10cloud: ["Docker", "AWS"],

11},

12roles: [

13"Full Stack Developer @ Pathful",

14"Lecturer @ Inst. Roque González",

15],

16workflow: "Spec-Driven / AI-First",

17location: "Posadas, Misiones, AR 🇦🇷",

18};

Scroll down to explore

// Track Record

Work Experience

A journey through high-throughput production systems, microservices architectures, critical optimizations, and higher education teaching.

OnetreePathful (E.E.U.U.)

Present

Full Stack Developer

Feb 2026 – Present

•

Uruguay (Remote)

End-to-end development of an EdTech administrative platform based on microservices and microfrontends within an AI-first workflow, owning Sessions and Professionals domains.

Key Contributions & Engineering Impact:

End-to-end ownership over administrative domains: Sessions (Python) and Professionals (Node.js), both backed by PostgreSQL
Engineered complex administrative dashboards in Next.js and React with advanced filters, pagination, and shared Design System components
Designed and implemented RESTful APIs strictly adhering to OpenAPI contract specifications
Integrated third-party Zoom API for real-time video session monitoring connected to internal microservices
Centralized API proxies, scripts, shared backend libraries, and mock suites within a monorepo under an AI-first development workflow
Contributed to architectural decisions, code reviews, and quality gates with automated testing pipelines

PythonSQLAlchemyNode.jsNext.jsReactTypeScriptPostgreSQLDockerAWS AmplifyAWS LambdaAWS SAMOpenAPIZoom API

Instituto Roque GonzálezTecnicatura Superior en Desarrollo de Software

Present

Adjunct Lecturer / Professor

Mar 2026 – Present

•

Posadas, Misiones, Argentina

Teaching core software engineering courses, focusing on programming fundamentals, solid architecture, and hands-on application delivery.

Key Contributions & Engineering Impact:

Programming I (2nd year): Algorithms, data structures, design patterns, and programming theory in Python
Web Development (3rd year): From core HTML/CSS/JS fundamentals to modern architecture and deployment with React
Mobile Development (3rd year): Cross-platform native application development with React Native
Pedagogical focus on deep conceptual understanding and architectural reasoning over mere tool syntax

PythonReactReact NativeTypeScriptEstructuras de DatosArquitectura de Software

Enviopack S.A.OMS (Order Management System)

Full Stack Developer

Oct 2023 – Feb 2026

•

Buenos Aires, Argentina (Remote)

Engineering backend services and frontend modules for new logistics business units, claims modernization, and internal developer tooling.

Key Contributions & Engineering Impact:

New business units: designed and delivered backend services in PHP/Symfony and React frontend for truck rentals and B2B logistics, successfully deployed to production
Modernized shipment claims and insurance management panel, providing full parcel traceability across shipping categories, locations, and resolutions
Built internal QA Environments Dashboard (Node.js, Next.js, Jira API) as a self-directed initiative to track deployed branches and lock testbeds, eliminating squad collisions
Integrated Intercom to streamline communication and support workflows across the company, users, and clients, improving ticket resolution
Migrated mission-critical legacy AngularJS modules to modern React (seller portal, billing, analytics), dramatically boosting stability and speed
Introduced automated PHPUnit testing and mocking for domain services; served as technical reference, conducting PR reviews and mentoring juniors

PHP (Symfony)Node.jsReactNext.jsTypeScriptMySQLDockerPHPUnitJira REST APIIntercom API

WMS

Enviopack S.A.Colaboración WMS (Warehouse Management)

Full Stack Developer (Mobile / SaaS Collaboration)

6 months (during Enviopack tenure)

•

Buenos Aires, Argentina (Remote)

Collaboration on adapting the internal warehouse management system (WMS) into a client-facing SaaS product across specialized devices.

Key Contributions & Engineering Impact:

Engineered mobile application workflows with React Native tailored for warehouse scanner hardware and client mobile devices
Integrated and optimized database operations and queries on PostgreSQL
Collaborated with product and operations squads to validate real-world warehouse logistics workflows

React NativePostgreSQLJavaScriptREST APIsTerminales Android

Enviopack S.A.Support & Integrations

Full Stack Developer (Support & Integrations)

Feb 2022 – Oct 2023

•

Buenos Aires, Argentina (Remote)

Deep diagnostic troubleshooting and production incident resolution across 20+ mission-critical marketplace and courier API integrations.

Key Contributions & Engineering Impact:

Resolved critical production incidents across high-throughput integrations (Mercado Libre, Shopify, Tiendanube, postal couriers)
Signature address normalization solution: engineered dictionary rules and fallback APIs that dropped label dispatch failures from ~80% to ~20% for affected parcels
Continuous maintenance, health monitoring, and performance tuning for 20+ carrier APIs
Conducted AWS cloud log forensics and authored standardized debugging playbooks, drastically accelerating team incident turnaround times

PHP (Symfony)ReactAngularJSMySQLDockerAWS CloudWatchAPIs Marketplaces & Correos

Espinlabs S.A.Sistemas del Sector Público

Backend Developer

Oct 2021 – Feb 2022

•

Buenos Aires, Argentina (Remote)

Backend development and maintenance in Symfony for an educational management platform for the Ministry of Education of Buenos Aires.

Key Contributions & Engineering Impact:

Architected chunked streaming pipeline for bulk CSV uploads to process massive datasets without server memory exhaustion
Implemented row-by-row validation with immediate exportable error correction reports for users
Resolved technical debt and delivered critical hotfixes on legacy monolithic systems in Symfony, Twig, and jQuery
Coordinated release schedules and legacy migration plans with QA and Product Owners

PHP (Symfony)MySQLjQueryTwigBatch Processing / Streams

Heliconia SoftwareMobile & Gestión Pública

Software Developer

Oct 2020 – Oct 2021

•

Posadas, Misiones, Argentina

Native mobile app engineering and Laravel API services for provincial traffic violation enforcement in Misiones.

Key Contributions & Engineering Impact:

Engineered and launched native Android app in Kotlin ("A Weather Way") featuring external weather API integration and dynamic time/weather reactive avatars
Built and maintained Laravel REST APIs for provincial traffic enforcement (UACI / Monitoreo Vial), powering citizen query, disputes, and payment workflows
Indexed and optimized MySQL database schemas for traffic violation records to significantly accelerate high-volume queries
Rebranded and updated operational logic for legacy Java desktop traffic enforcement software

PHP (Laravel)Kotlin (Android)JavaMySQLREST APIs

// Showcase

Featured Projects

Multitenant SaaS platforms, self-driven developer tools, and open-source applications engineered with focus on resilience and scalability.

Multitenant SaaS / B2BIn Production · Live

StockKing

Featured

Multitenant inventory & stock management SaaS engineered for small businesses with strict tenant data isolation.

Key Engineering Highlights:

Multitenant architecture utilizing PostgreSQL Row Level Security (RLS) for complete business data separation

SKU-based variant management, dynamic attributes, cost tracking, and automated threshold alerts

Next.jsReactTypeScriptSupabasePostgreSQL (RLS)Tailwind CSSshadcn/uiZodPlaywright

Demo Access

User:usuario@stockking.com.ar

Password:Usuario1234

Test user enabled to explore the platform

View Project

Property Management / Full StackIn Progress · Core Backend 100%

Rentapp

Featured

All-in-one property management platform centralizing lease contracts, units, parcels, payments, and tenants.

Key Engineering Highlights:

Modular domain-driven NestJS backend with TypeORM, MySQL, and full Swagger API documentation

Strict tenant ownership validation, JWT auth, and financial tracking for leases and maintenance

NestJSNext.jsTypeScriptTypeORMMySQLRedux ToolkitJWTSwagger (OpenAPI)

Internal Tool / Developer ExperienceInternal Production (Enviopack)

Dashboard Ambientes QA

Featured

Self-driven developer tool built with Node and Next.js to coordinate staging environments, inspect Jira tickets, and reserve testbeds without collisions.

Key Engineering Highlights:

Integrated with Jira API to monitor which ticket and branch is currently assigned to each environment

Dedicated reservation locking mechanism preventing accidental deployment collisions

Next.jsNode.jsTypeScriptTailwind CSSJira REST API

Hobby / Open SourceOpen Source · Published

Sale un Mate 🧉

A lightweight community hobby project celebrating Argentine mate culture through quotes and everyday rituals.

Key Engineering Highlights:

Ultra-fast client-side application built with Vite and React

Warm, responsive interface crafted with micro-interactions

ReactViteTailwind CSSJavaScript

Source Code

Capstone Project / AcademiaCompleted with honors

E-commerce Full Stack

Technical team lead for the 4-month Digital House capstone project building an end-to-end e-commerce store.

Key Engineering Highlights:

Led engineering squad through requirements, system design, backend APIs, and React frontend

Delivered product catalog, shopping cart, user auth, and relational MySQL data modeling

Node.jsExpress.jsReactJavaScriptMySQLArquitectura MVC

// Proficiency

Tech Stack & Capabilities

Tools, design patterns, and engineering practices I utilize daily to craft reliable, testable, and maintainable software.

Backend & APIs

PHP (Symfony, Laravel)5+ yrs

Node.js (NestJS, Express)

PythonProducción

APIs RESTful & OpenAPI

Arquitectura de Microservicios

Diseño por Capas & MVC

Frontend & UI

TypeScript & JavaScriptCore

React 19 & Next.js 16Stack actual

Tailwind CSS v4

Microfrontends

shadcn/ui & Radix UI

Design Systems & Componentes

Databases & Persistence

PostgreSQLProducción

MySQL5+ yrs

Modelado Relacional & ACID

Optimización de Queries & Índices

ORMs (Doctrine, SQLAlchemy, TypeORM)

Supabase

Cloud, DevOps & Infra

Docker & Docker Compose

AWS (Lambda, EC2, S3, Amplify)

CI/CD Pipelines

Git & Monorepos

Linux & Shell Scripting

Vercel

Architecture & Practices

SOLID & Clean Code

Testing Automatizado (PHPUnit)

Spec-Driven Development (AI-First)

Code Review & Análisis Estático

Desacoplamiento de Servicios

Resolución de Incidentes Productivos

Mobile Development

React NativeMultiplataforma

Kotlin (Android)Nativo

Java (Android / Legacy)

Integración de Hardware & APIs Móviles

// Background

About Me

Full stack engineer driven by solid computing fundamentals, software craft, and knowledge sharing.

Juan Cruz Lima

+5 yrs exp

Full Stack Developer | Backend Specialist & Lecturer

Posadas, Misiones, Argentina 🇦🇷

Spanish (Native) · English (Intermediate (B2))

I am a Higher Technician in Programming and Systems Analysis, developing software professionally since 2020. I love digging deep into domain challenges, designing clean architectures, and delivering solutions that yield measurable value—from data persistence to frontend interactions.

Currently, I work as a Full Stack Developer at Onetree (Pathful) leading administrative microservices and microfrontends within an AI-first workflow, while also serving as Adjunct Lecturer at Instituto Roque González, teaching Programming I, Web Development, and Mobile.

I place heavy emphasis on engineering fundamentals: algorithms, data structures, ACID transactions, decoupling, and automated testing. My workflow embraces Spec-Driven Development (SDD) with AI tools to accelerate delivery without sacrificing code quality.

Education & Formal Training

Higher Technical Degree in Programming and Systems Analysis

2017 – 2019

INCADE (Misiones, Argentina)

Web Full Stack Developer

2022

Digital House

// Human Side

Beyond the Code

Posadas native, passionate about software craftsmanship, teaching, and family. Life behind the keyboard.

Posadas, Misiones 🇦🇷32 years old13 years togetherMilo (7a) & León (5a)

About Me & Roots

I'm 32 years old, born and living in Posadas, Misiones (Argentina) 🇦🇷. My curiosity for technology sparked early: spending hours exploring computers, gaming, and wanting to understand how things work under the hood until I started building my own projects.

Family & Life Partner

I've been living with Mily (32 years old) for 4 years, my partner of 13 years (together since October 2012 ❤️). We share daily life creating projects and cheering each other on through every new challenge.

Our Poodles

Our home is made complete with our two poodles: Milo (7 years old, the chocolate one) and his son León (5 years old), who bring endless joy and are the real owners of the house.

Free Time & Passions

In my spare time, I love cooking, playing video games, watching anime, spending quality time with family and pets, and of course, always with a mate by my side 🧉.

Teaching as a Calling

Teaching at Instituto Roque González allows me to pass on solid engineering fundamentals and watch future engineers grow. My philosophy is simple: understand the core problem and logic before touching a keyboard.

// Rituals & Hobbies

Family & Pets

Cooking

Gaming

Anime

Argentine Mate

Teaching & Mentoring