Hi, I'm Renier Cuervo
Senior software engineer focused on abstracting system complexities, and turning ideas into production-grade solutions.
Santo Domingo, Dominican Republic Atlantic Standard Time (AST, UTC-4)
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About

I build software that helps people get the value they are seeking. Whether it's architecting a solution, simplifying complex systems, or developing end-to-end applications with my fullstack expertise. I aim to create systems that elevate the users, and empower the developers.

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Work Experience

  • 0xcord
    Lead Full-Stack & DevOps Engineer
    2022-04 — 2023-10
    • Reduced smart contract deployment time from 8 hours to 1 hour by building a multi-chain CI/CD pipeline.
    • Reverse-engineered an undocumented internal API to unblock core platform functionality.
    • Became an early adopter and subject-matter expert on Chainlink Functions, providing direct feedback to their team.
    Node.jsNext.jsPostgreSQLHardhatChainlinkCI/CD
    Burnt Finance
    Full-Stack Engineer & Solana Specialist
    2021-10 — 2022-02
    • Resolved a week-long deployment blocker by debugging a silent Rust smart contract bug outside of its custom environment.
    • Increased team-wide productivity by fixing a foundational login/routing bug that saved every developer ~1 hour per week.
    ReactTypeScriptSolanaRust
    Commonwealth
    Lead Mobile Developer (React Native)
    2021-03 — 2021-10
    • Delivered the entire mobile app solo from Figma to production, taking full ownership of architecture, UI, and API integration.
    • Achieved a pixel-perfect UI across iOS and Android by developing numerous custom components and animations.
    React NativeExpoMagic.linkGraphQL
    Icon Girl
    Smart Contract & Backend Architect
    2022-04 — 2022-05
    • De-risked a public launch by redesigning a stateful, buggy backend into a robust, stateless architecture.
    • Reduced server costs by >90% and the codebase size by ~60% by eliminating the database synchronization layer.
    Node.jsEthers.jsSolidity
    Retreat App
    Mobile Developer (React Native)
    2021-10 — 2022-01
    • Transformed the app from slow and buggy to snappy and reliable by implementing intelligent caching policies.
    • Eliminated a major source of production crashes by resolving critical data-syncing issues.
    React NativeGraphQLApollo Client
    Come-Gather
    Mobile Development Consultant
    2021-10 — 2021-10

    Provided targeted technical expertise to a new mobile app, helping the team set up their initial React Native environment and implementing core data-fetching logic for screen navigation.

    React Native
    Conversations
    Frontend Engineer (React & GraphQL)
    2021-03 — 2021-03

    Supported a senior development team in building a CRM, integrating features with a GraphQL backend, managing state with Redux, and improving technical documentation.

    ReactGraphQLRedux

Case Studies

A closer look at my recent engagements with different projects and the outcomes they delivered.

View all case studies
Developer‑First Web3 Services Platform
Developer‑First Web3 Services Platform

CI/CD automation, platform engineering, API abstraction, pragmatic mindset

Platform DevEx APIs Automation Multi‑Chain
Unblocking a Team in the Wild West of Solana
Unblocking a Team in the Wild West of Solana

Adaptability under chaos, deep debugging, learning Rust on the fly, stabilizing teams

Debugging Solana Rust Collaboration
Stabilizing a Mobile App Through Pragmatic GraphQL Debugging
Stabilizing a Mobile App Through Pragmatic GraphQL Debugging

Mobile and frontend reliability, GraphQL caching, pragmatic system tuning

GraphQL React Native Mobile Performance UX

Skills

Core Strengths

Platform Engineering (CI/CD, DevEx)
Full-Stack TypeScript Delivery
TypeScript
React / Next.js
Node.js
PostgreSQL
Docker
CI/CD

AI & Data Systems

AI Systems (RAG + Knowledge Graphs)
Data Modeling & Retrieval
Python
FastAPI
LangChain
Vector Databases
Neo4j
pgvector

Web3 Engineering

Multi-Chain Architecture
Protocol & DeFi Integrations
Solidity
Ethers.js
Hardhat
Ethereum
Chainlink
DeFi

Supporting Capabilities

GraphQL & API Design
Developer Experience Leadership
Deep Debugging & Incident Resolution
GraphQL
REST APIs
Prisma ORM
Platform Tooling

Emerging Focus

Infrastructure as Code (Terraform, K8s)
AI Platformization & LLMOps
Terraform
Kubernetes
LLMOps
Contact

Get in Touch

Want to chat? Just shoot me a message at contact@reniercuervo.com and I'll respond whenever I can.

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