Open to remote opportunities

Ivan Martinez | Full Stack Developer

I build SaaS platforms that hold up in production

4+ years building production-grade SaaS. I specialize in scalable backend systems, complex third-party integrations, and owning infrastructure end to end, from database design through to cloud deployment.

See what I've shipped Download CV

Cochabamba, Bolivia· GMT-4

Years building: 4+Years buildingproduction software
Companies: 4CompaniesUS, Canada, Mexico, Bolivia
Tech Lead role: 1Tech Lead rolepromoted in 3 months
Live products: 4Live productsshipped and running

01About

I own the whole stack,
schema to deploy.

I'm a full stack developer in Cochabamba, Bolivia, working remotely with teams in the US, Canada, and Mexico for the past four years.

My core stack is React, Next.js, NestJS, and PostgreSQL, but the work I enjoy most sits behind the interface: designing schemas that won't need rewriting, building billing engines that reconcile correctly, and owning infrastructure end to end.

I've shipped multi-tenant platforms, real-time systems, and cross-border products for regulated markets. At my current role I was promoted to Tech Lead after three months and now own the architecture of a compliance SaaS built from scratch.

What I go deep on

Multi-tenant architecture
Billing & payments
Async pipelines & queues
Cloud infrastructure
Database performance

Current role: Tech Lead & Full Stack DeveloperRedlizard Studioz Inc. · Canada
Based in: Cochabamba, BoliviaGMT-4 · remote since 2022
Languages: SpanishNative
EnglishProfessional
Education: Bachelor's Degree · Computer Science / Informatics EngineeringUniversidad Mayor de San Simón2017 - 2022 · Cochabamba, Bolivia

02Experience

Four years, four teams, one throughline.

Every role has meant owning a system end to end, not just the feature in front of me.

Sep 2025 - Present

Canada (Remote)

Tech Lead & Full Stack Developer

Current

Redlizard Studioz Inc.

Promoted to Tech Lead after three months. Own the architecture of a multi-tenant compliance SaaS built from scratch.

Led full architecture of a multi-tenant SaaS for document and compliance management in heavy transport, built from scratch with subdomain-based tenant isolation via Cloudflare.
Engineered dynamic Stripe billing engine: tier-based pricing algorithm driven by active/new/archived driver counts, T+3 invoice scheduling, payment method management, and DB invoice snapshots.
Implemented async notification pipeline (Twilio SMS + Postmark email) with Redis-backed queues and retry logic; led legacy data migration from monolithic to modular schema.

React
Next.js
NestJS
PostgreSQL
Prisma ORM
Redis
Stripe
Twilio
Postmark
Keycloak
Cloudflare
Docker
Linux
CI/CD

Feb 2025 - Jan 2026

Mexico (Remote)

Full Stack Developer

Nacer Digital

Real-time features and cloud infrastructure for a multi-role freelance marketplace.

Built real-time persistent chat (Firestore) with full conversation continuity across workflow stages (bid → contract → active work) on a multi-role freelance marketplace; designed a multi-role rating system with star-distribution chart.
Replicated full AWS production environment for staging from scratch: Amplify (frontend), Elastic Beanstalk (backend), RDS, SSL certificates, and DNS routing.
Implemented event-sourcing table pattern as a domain-agnostic action queue; developed dispute resolution flows, milestones, time logs, and service provider profiles.

React
Next.js
NestJS
PostgreSQL
TypeORM
BullMQ
Firestore
Stripe
AWS
Docker
Bitbucket Pipelines
CI/CD

Apr 2023 - Feb 2025

Cochabamba, Bolivia · Client: Alberta, Canada

Software Engineer

Iventiva

Cross-border real estate SaaS: integrations, notification pipelines, and heavy query optimization.

Designed automated email notification pipeline: 3 flows × 3 retries = up to 9 scheduled emails per user, covering identity verification, bank authentication, and mortgage assessment for a cross-border real estate SaaS.
Reduced a critical DB query from 28s → 3.5s (~87% improvement) via schema redesign, N+1 ORM elimination, and materialized views on a Ruby on Rails application.
Integrated third-party services for identity verification, bank data validation, and creditworthiness evaluation; managed Heroku deployments and production incident response.

React
Next.js
Gatsby
NestJS
GraphQL
PostgreSQL
Sequelize
Ruby on Rails
Heroku

Jan 2022 - Jan 2023

Cochabamba, Bolivia

Full Stack Developer, Intern

Fundación Jala

Where it started. Full-stack feature work across internal products.

Built full-stack features across internal projects applying SOLID principles, design patterns, and clean architecture in Agile/Scrum teams.

JavaScript
React
Java
Spring Boot
PostgreSQL
Docker
GitLab CI/CD

03Selected work

Four products, live in production.

Platforms I designed, built, and shipped. Each one is running today with real customers on it.

01Compliance SaaS

ComplyDQ

Redlizard Studioz Inc.

my.complydq.com

Document and compliance management platform for heavy transport companies, architected and built from scratch.

Multi-tenant architecture with per-company subdomain isolation via Cloudflare
Dynamic Stripe billing engine with tier pricing driven by driver counts and T+3 deferred scheduling
Twilio SMS and Postmark email notifications queued through Redis with retry logic
Deployed to a bare Linux server with pm2; Keycloak for identity management

Next.js
NestJS
PostgreSQL
Stripe
Redis
Cloudflare

02Marketplace

ProtoCall

Nacer Digital

protocall.pro

Freelance marketplace where companies and individuals post projects and freelancers apply to them.

Multi-role workflows with real-time persistent chat, milestones, and time logs
Dispute resolution flow backed by an admin decision panel
Upwork-style rating model: star distribution, weighted average, and last-five reviews
Self-hosted deployment driven by a CI/CD pipeline

Next.js
NestJS
Firestore
PostgreSQL
Stripe
AWS

03Field service SaaS

ManoTécnica

Iventiva

manotecnica.com

Subscription platform that field-service companies (plumbers, electricians, masons) use to manage their technicians.

Google Calendar-style scheduler shared by technicians and company admins
Real-time GPS tracking via Google Maps, plus media uploads for work verification
Stripe payments with country-specific product configurations
Full AWS staging environment from scratch: Amplify, Elastic Beanstalk, RDS, SSL, DNS

React
NestJS
GraphQL
PostgreSQL
Heroku

04Real estate SaaS

Ownly

Iventiva

ownly.re

Real estate platform for the Canadian and US markets where agencies list land and buyers design their future home.

Interactive, Minecraft-style house builder
US/CA integrations for identity verification, bank authentication, and mortgage capacity
Automated multi-stage email pipeline across the buyer journey
Cut a critical query from 28s to 3.5s with a schema redesign and materialized views

React
Next.js
Ruby on Rails
PostgreSQL
Sequelize

04Stack

Tools I reach for.

Grouped by where they sit in the system, not by how well I know them. Everything listed here has run in production.

Frontend

07 tools

React
Next.js
Gatsby
TypeScript
JavaScript
HTML5
CSS

Backend

05 tools

Node.js
NestJS
GraphQL
REST APIs
Ruby on Rails

Databases

05 tools

PostgreSQL
Redis
Prisma ORM
TypeORM
Sequelize

DevOps & Cloud

08 tools

AWS
Docker
Linux
pm2
Heroku
CI/CD
Bitbucket Pipelines
Cloudflare

Integrations

07 tools

Stripe
Twilio
Postmark
Keycloak
Firestore
BullMQ
Google OAuth

05Contact

Let's build something
that holds up.

Open to remote roles, contract work, and interesting collaborations. I usually reply within 24 hours.

Or reach me directly

Emailivangra85@gmail.com

LinkedInivan-martinez-fullstack GitHubgithub.com/Viclo

Available

Currently open to remote opportunities. Based in Cochabamba, Bolivia (GMT-4), and happy to overlap with North American hours.