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Stellar

Mateo R. logo

Mateo R.

Available now

Senior Blockchain Development Specialist @ Stellar

Senior
Seniority
GMT+02:00, Valencia, Spain
Location & Timezone
$70 - $90/hr
Average Hourly Rate
Portuguese, English
Languages

Top skills

Solidity
Node.js
JavaScript
TypeScript
C#

About

Senior Solidity engineer with 6+ years of professional experience developing secure, gas-efficient smart contracts for EVM based DeFi protocols. Proven track record in protocol architecture, cross-chain solutions, and leading smart contract development teams. Experienced in security auditing, deployment.

Top skills

Verified by Pangea.ai due diligence

Top SkillsCurrent UsageSeniority
Solidity
32%5 years
Node.js
24%5 years
JavaScript
14%5 years
TypeScript
15%5 years
C#
15%5 years

All skills

Roles and tools, to bring ideas to life and create meaningful experiences

AI & ML Solutions
Blockchain & Crypto
Enterprise Software
Web Apps
Marketplaces
Mobile Apps
API

Professional experience

Explore a curated selection of projects highlighting Mateo R.'s expertise and experience. Each project aims to showcase challenges, solutions, and the final outcome, along with the tools and technologies used.

Under MNDA
DAO Governance System — Senior Solidity Developer
Designed and implemented DAO governance system for Rootstock Labs with advanced voting mechanisms.
Blockchain & Crypto
FinTech
Blockchain & Smart Contracts
Solidity

NFT Bridge and Smart Contract Auditing project preview
Sisnet
NFT Bridge and Smart Contract Auditing — Senior Solidity Developer and Smart Contract Auditor
Managed projects including creating an NFT bridge between Terra and Polygon networks, NFT store, and offline sign data with on-chain sign verification. Conducted internal smart contract audits.
Blockchain & Crypto
PropTech
Blockchain & Smart Contracts
Solidity
JavaScript
+1

Preferred tools

View the preferred tools and apps used by Mateo R. to assess compatibility and alignment.

Apple Notes
Apple Notes
ClickUp
ClickUp
Figma
Figma
Habitica
Habitica
Mattermost
Mattermost
Notion
Notion
Sharepoint
Sharepoint
TickTick
TickTick
Windows screen recorder
Windows screen recorder
integromat
integromat
Zoom
Zoom
Zapier
Zapier

Career highlights

Discover Mateo R.’s professional journey, including employment history, certifications, and educational background.

Senior Solidity Developer
Stellar Soft2025 - pressent
Designed and implemented DAO governance system for Rootstock Labs with advanced voting mechanisms. Designed a mechanism to emit NFTs as prize for Early Developers in Rootstock network. Designed a lottery protocol based on purchase scratch cards splitted in 4 series running 10k NFT batches. Used ERC-721 and Chainlink VRF, Chainlink Automations.
Senior Solidity Developer
Eiger2024 - 2025
Architected and deployed secure smart contracts for RFQ (Request-for-Quote) DeFi system handling complex financial primitives. Led internal security auditing of L2 → L1 smart contracts, ensuring protocol safety and gas efficiency. Built custom EVM-compatible network infrastructure using EigenLayer and Symbiotic protocols. Developed cross-chain bridge protocol connecting EVM ↔ Solana using Rust and Anchor framework.
Senior Solidity Developer and DeFi Protocol Specialist
DFB Network2023 - 2024
As a blockchain expert, developed back-end solutions for high-performance data collection and processing applications from the blockchain. Used go-routines and channels to reduce system latency by processing a huge amount of data in parallel and synchronized with google pub/sub.
Senior Solidity Developer and Blockchain Specialist
Mercado Bitcoin (2TM)2022 - 2023
As a Blockchain specialist, part of custodial labs researching and providing solutions for assets custody. Worked on customizing Safe multi-sig wallet smart contracts (Solidity) with backend integration in GO. Implemented an HSM as a service for automating internal tasks related to EVM and Cardano private keys management.
Senior Solidity Developer and Smart Contract Auditor
AE Studio2022 - 2022
Managed projects such as creating an NFT bridge between Terra and Polygon networks, creating an NFT store, and creating offline sign data and on-chain sign verification. Reviewed smart contracts and conducted internal smart contract audits before production. Helped other developers to get into web development.
Senior Solidity Developer and Blockchain Architect
Fluent.Finance (Holonic)2021 - 2022
Focused on building a full stable coin structure, from the private layer where a group of banks works to the public layer where tokens are minted and burned to reflect the amount of dollars locked. Worked on Ethereum/Polygon architecture design, public Smart contracts solidity implementation, and supported the external auditing process.
Solidity Developer
SokuSwap2020 - 2021
Set up the swap and farm structure, created smart contracts for staking contracts, reversal crowd sale, etc.

Testimonials

Roman Kravchenko, Project manager @ Stellar Soft

Stellar Soft

Verified Testimonial

Working with Rodrigo on projects has been a strong and reliable experience from a project management perspective. He consistently showed good ownership of his tasks, clear communication, and a responsible attitude toward delivery timelines. What stood out most was his ability to understand requirements quickly, ask clarifying questions when needed, and turn technical tasks into stable, well-structured solutions. Rodrigo was also proactive during the development process. He did not simply wait for instructions, but often suggested improvements, identified possible risks early, and helped the team avoid unnecessary rework. This was especially valuable when we had to align technical implementation with business goals, user flows, and project priorities. From a PM perspective, it was easy to work with him because he kept communication transparent, provided clear updates, and was responsive when priorities changed. His contribution helped keep the development process organised, predictable, and focused on delivering a quality result. Overall, Rodrigo proved to be a dependable developer who combines technical skills with a collaborative mindset and strong delivery discipline

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