Daniel Neris

Daniel Neris

Senior Backend Engineer8+ years

@danielneris

Dubai, UAE··:·· GST
danielneris01@gmail.com

Building production backends in Node.js and TypeScript for fintech, banking and Web3. Now focused on privacy-first, decentralized, peer-to-peer software on the Holepunch/Pear stack.

GitHubLinkedInEmailCV / Resume

Projectsshipped.

Zuvia · Tokenized Asset Platform

· Live
R$300M+

The platform behind Brazil's first real estate tokenization on B3 infrastructure, with R$300M+ in transaction volume. Event-driven Node.js microservices on PostgreSQL, Solidity contracts and multisig wallets for 8,000+ investors.

Node.jsPostgreSQLEvent-DrivenSolidityNext.js

retry · Peer-to-Peer Interviews

· Open source
0 servers

Asynchronous interviews that run peer-to-peer on Pear. Candidates re-record until it's right, and only the take they send ever exists. Blind-pairing invites, Hyperdrive replication and on-device AI. No server, no API calls.

PearHyperdriveHyperbeeProtomuxQVAC

Event-Driven E-commerce · Kafka Microservices

· Open source
9 services

NestJS microservices over Kafka: transactional outbox, saga with compensation, Redis distributed locks, retries with dead-letter queues and a CQRS read model on OpenSearch.

NestJSKafkaPostgreSQLRedisOpenSearch

udp-from-scratch · Reliable Transport over UDP

· Open source
0 deps

Reliable transport on raw UDP in Node.js: a 5-byte binary header, acknowledgements, per-packet retransmission and a three-way handshake that stops blind spoofing. Built to show what TCP actually solves.

Node.jsUDPNetworking

Lario

· Beta test
Local-first

Real-time AI voice enhancement for desktop. Local-first audio pipeline that cleans noise, restores clarity and ships entirely on-device. No audio ever leaves the machine.

ElectronAI / DSPTypeScriptAudio

Smoolos · NFT Club & dApps

· Live
On-chain

Web3 community platform with NFT-gated access, on-chain betting and smart-contract reward mechanics. Solidity contracts wired to a Node.js backend with full Web3 wallet integration.

SolidityNode.jsReactWeb3

Aboutstory.

  • Senior Backend Engineer with 8+ years building production systems in Node.js and TypeScript. I work in fintech and have built banking systems (digital wallets, lending, Banking-as-a-Service), tokenization platforms and Web3 backends.
  • Where I'm heading: privacy-first, decentralized, peer-to-peer. I build on the Holepunch/Pear stack (Hypercore, Hyperdrive, Hyperbee, Autobase), where data stays on the devices of the people who own it. My interview app retry runs with no server and on-device AI, and I wrote a reliable transport over raw UDP from scratch.
  • Co-founded Zuvia and built its tokenization platform: R$300M+ in transaction volume, 8,000+ active investors and the platform behind Brazil's first real estate tokenization on B3 infrastructure. Event-driven Node.js microservices on PostgreSQL, integrated with Solidity contracts and multisig wallets.
  • Owner's mindset, hands on the code. Co-founded two companies. Comfortable from system design to production incidents and team mentoring. I make the technical calls and write the code that proves them out.

Experiencerésumé.

  • Nova Information Technology

    Senior Software Engineer

    Mar 2025 to PresentDubai, UAE

    Current
    • Built KYC and compliance APIs in Node.js and TypeScript supporting 20K+ identity verifications.
    • Designed a release management and maintenance mode platform for 3 internal applications, modeling the release lifecycle as a state machine.
    • Improved scalability and reliability by moving verification steps to asynchronous workflows and modular backend services.
    • Delivered secure identity systems handling sensitive customer data under regulatory requirements.
    Node.jsTypeScriptAsync WorkflowsState Machines
  • Zuvia

    Principal Software Engineer & Co-founder

    Sep 2022 to Mar 2025São Paulo, Brazil

    • Built a real estate tokenization platform with Next.js, event-driven microservices and PostgreSQL, reaching R$300M+ in transaction volume.
    • Scaled the platform to 8,000+ active investors through reliable backend and product architecture.
    • Delivered the platform behind Brazil's first real estate tokenization on B3 infrastructure.
    • Integrated Solidity smart contracts and multisig wallets with Node.js microservices and investor dashboards.
    • Designed a modular architecture with PostgreSQL, Redis and MongoDB, plus CI/CD pipelines for secure, reliable deployments.
    • Led technical decisions across backend, product delivery and platform evolution.
    Node.jsPostgreSQLEvent-DrivenRedisMongoDBSolidity
  • SHSquads

    Senior Software Engineer (Contract)

    Oct 2024 to Mar 2025São Paulo, Brazil

    • Delivered backend systems for 5 fintech clients supporting products with 100K+ users.
    • Built production APIs and integrations with Node.js, Next.js and React Native.
    • Helped launch scalable financial products in regulated environments, improving delivery speed and code quality.
    Node.jsTypeScriptNext.jsReact Native
  • SkyDan

    Lead Software Engineer & Co-founder

    Aug 2021 to Sep 2022São Paulo, Brazil

    • Designed Web3 and backend architecture for NFT and betting dApps using Solidity and Node.js.
    • Led engineering execution while remaining hands-on in core product development.
    • Improved delivery consistency through code reviews and architecture decisions.
    Node.jsSolidityWeb3React
  • Live On Solutions

    Software Engineer

    Jan 2019 to Aug 2021Jaú, Brazil

    • Built Banking-as-a-Service and lending systems using Node.js, React and PostgreSQL.
    • Improved API latency by 40% through query optimization and backend redesign.
    • Delivered financial systems supporting digital wallets, lending and real-money transactions.
    Node.jsPostgreSQLMongoDBReact
  • Amais Terceiro Setor

    Software Developer

    Oct 2018 to Dec 2018Jaú, Brazil

    • Developed internal tools for data management and reporting in the non-profit sector.

Stacktoolbox.

Architecture & design

  • System Design
  • Domain-Driven Design
  • Microservices
  • Event-Driven Architecture
  • Event Sourcing
  • CQRS
  • REST APIs

Backend

  • Node.js
  • TypeScript
  • Go
  • JavaScript
  • NestJS
  • Express

Distributed systems

  • Transactional Outbox
  • Saga
  • Idempotency
  • Circuit Breaker
  • Retries & Backoff
  • Dead-Letter Queues
  • Rate Limiting

P2P & networking

Current focus
  • Holepunch/Pear
  • Hypercore
  • Hyperdrive
  • Hyperbee
  • Autobase
  • Protomux
  • UDP

Data & messaging

  • PostgreSQL
  • Apache Kafka
  • BullMQ
  • Redis
  • MongoDB
  • MySQL
  • OpenSearch
  • Prisma

Cloud

  • AWS
  • EC2
  • S3
  • Serverless
  • Lambda
  • ECS
  • SQS
  • SNS
  • EventBridge
  • API Gateway
  • IAM
  • VPC

Security

  • OAuth2
  • JWT

Fintech & Web3

  • Tokenization
  • Smart Contracts
  • Solidity
  • Ethereum
  • Multisig Wallets
  • Banking-as-a-Service

Frontend & mobile

  • Next.js
  • React
  • React Native
  • Expo

DevOps & testing

  • Docker
  • CI/CD
  • GitHub Actions
  • Jest
  • Vitest
  • Cypress

Studieslearning.

  • Bachelor's Degree in Computer Science

    DescomplicaSão Paulo, Brazil

    Expected Jun 2028

  • Technologist Degree in Systems Analysis and Development

    DescomplicaSão Paulo, BrazilGPA 9.43/10

    Expected Dec 2026

  • Intensive English Programme

    Stellenbosch UniversityStellenbosch, South Africa

    Mar 2024 to Dec 2024

  • Technical Course in Web Development

    Etec Comendador João RaysBarra Bonita, Brazil

    Jan 2018 to Dec 2018

  • Computer Technician

    Etec Comendador João RaysBarra Bonita, Brazil

    Jun 2016 to Dec 2017

Certificationscredentials.

  • Certified Blockchain Developer

    Blockchain Council

    Nov 2025

Languagesspoken.

  • Portuguese

    Native

  • English

    Advanced · C1

  • Spanish

    Pre-intermediate · A2–B1

Contactbuild with me.