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👨‍💻
Rhine Pereira
ETH + SOL
Ecosystems
5+
Shipped Works
2
Mobile Apps
Go/Py/Rust
Cross-Stack

Engineering trust through cryptographic proof.

The Identity

I’m a 3rd year AI & Data Science student who builds decentralized systems. I’m particularly drawn to problems where trustlessness and cryptographic proof can replace institutional middlemen.

The Systems

I architect protocols across Ethereum and Solana, focusing on systems like decay-based skill NFTs, decentralized SLA monitoring, and trustless credential verification. I design my builds as end-to-end ecosystems where on-chain logic and off-chain data flows remain verifiable.

Current Focus

I’m currently seeking Web3 engineering internships and freelance protocol development opportunities. If you’re building something that replaces trust with proof, let’s talk.

Tech Stack

These are the languages, frameworks, and tools I use to bring ideas to life. I focus on modern, scalable, and secure technologies.

Web & Mobile

ReactReact
Next.jsNext.js
TypeScriptTypeScript
FlutterFlutter
KotlinKotlin
Node.jsNode.js
ExpressExpress

Blockchain & Web3

SoliditySolidity
SolanaSolana
EthereumEthereum
ethers.jsethers.js
Web3.jsWeb3.js
AnchorAnchor

Backend & Cloud

PostgreSQLPostgreSQL
MongoDBMongoDB
FirebaseFirebase
FastAPIFastAPI
DockerDocker
AWSAWS

Languages

JavaScriptJavaScript
PythonPython
GoGo
RustRust
JavaJava
TypeScriptTypeScript

Featured Projects

A collection of systems I’ve built to solve real-world problems, ranging from blockchain infrastructure to mobile applications.

Time-Locked Skill NFTs (Proof of Skill)

Traditional certifications are static and fail to reflect real-world skill relevance over time, leading to outdated resumes and trust issues in the hiring process.

Proof of Skill is a decentralized, trustless skill verification system built on Solana. It utilizes dynamic, decay-based NFTs that evolve according to user activity, industry trends, and real-world validation. The platform features an AI Skill Auditor that evaluates proof-of-work (like GitHub activity), a permissionless decay engine ensuring skill freshness, and an employer reputation layer for verifiable performance tracking.

Next.jsFastAPIPythonSolanaAnchorMetaplexPostgreSQLIPFSArweaveOpenAINVIDIA NIMGroq

Decentralized SLA Monitoring

Service Level Agreement (SLA) monitoring today is centralized and trust-based. Companies must rely on provider-generated uptime reports that are impossible for third parties to independently verify, leading to potential data manipulation and opaque dispute resolutions.

A decentralized protocol for cryptographically verifiable "Proof of Uptime." The system employs a network of distributed watcher nodes that monitor endpoints and sign their findings. These reports are aggregated into Merkle trees to provide efficient inclusion proofs, with the roots anchored on-chain to ensure immutability and public verifiability.

GoSoliditySQLiteEthereum/EVMMerkle TreesEd25519 CryptographyREST API

CashNet — DeFi Risk & Liquidity Simulation Platform

DeFi protocols are hard to evaluate safely because liquidity stress, credit risk, liquidation cascades, and attack behavior are difficult to simulate together in one environment.

A full-stack DeFi simulation platform featuring AI agents, on-chain lending/liquidity contracts, real-time fraud detection, and role-based dashboards for borrowers, lenders, and auditors.

Next.jsReactTypeScriptTailwind CSSFastAPIPostgreSQLSolidityOpenZeppelinWagmiViemFlutterscikit-learnFirebase Auth

VeriCert

Academic credential fraud and the lack of a trustless, automated verification system for institutional certifications.

A blockchain-powered issuance and verification platform for universities. Features W3C-standard Verifiable Credentials (JWT), AES-GCM encrypted institutional wallets, real-time SSE monitoring, and automated bulk issuance pipelines.

Node.jsPostgreSQLSolidityEthers.jsW3C VCSSEExpress

Career Journey

May 2023 – PresentRemote/India

Service & Technical Member

Christian Youth in Power (CYP)

  • Built event registration platforms used by 500+ attendees for nationwide youth summits.
  • Automated schedule management and digital check-ins, reducing manual entry by 80%.
  • Developed real-time multimedia presentation systems for live events.
2024CRCE, Mumbai

Jr. Webmaster & Game Dev

Game Developers Association (GDA)

  • Shipped 3D game prototypes in Unreal Engine 5 with custom Blender assets.
  • Orchestrated technical logistics for events hosting 100+ concurrent players.
  • Managed and maintained association web portal during flagship hackathons.
2023CRCE, Mumbai

Workforce Member

Google Developer Students Club (GDSC)

  • Produced and edited technical video content for a community of 200+ students.
  • Coordinated venue and technical setup for multi-track developer workshops.
  • Supported on-ground attendance and crowd management for flagship events.

Ready to build the future?

I’m currently looking for internships, freelance builds, and open-source collaborations. Whether you have a specific project in mind or just want to chat about blockchain and web apps, my inbox is always open.Typical response time: < 24 hours

Send a Message

Got a proposal or just want to say hi?