Senior Software Engineer focused on backend architecture, fintech infrastructure, and distributed systems.

I design and operate high-reliability backend platforms, combining Node.js, event-driven systems, cloud infrastructure, and Web3 technologies to power financial and decentralized applications.

Key impact from systems I’ve built in production:

• R$200M+ (~$36M) tokenized assets infrastructure
• 20K+ KYC identity verifications processed
• 100K+ users supported across fintech platforms
• Reduced partner integration time from 2 days → 4 hours

📍 Based in Dubai

LinkedIn
https://www.linkedin.com/in/danielneris

Portfolio
https://danielneris.com

• Backend architecture for fintech platforms
• Event-driven and distributed systems
• Tokenization infrastructure
• AWS cloud architecture
• Solidity and Web3 integrations

These are examples of systems and architectures I designed and implemented.

A full stack tokenization platform connecting:

• Solidity smart contracts
• Node.js backend services
• investor dashboards
• financial workflows

Impact

• R$200M+ tokenized assets
• 5K+ investors onboarded
• hybrid on-chain / off-chain architecture

Designed backend infrastructure for regulated identity verification including:

• OCR document extraction
• facial matching
• liveness detection
• identity verification APIs
• SDK integrations for partners

Impact

• 20K+ verifications processed
• 35% reduction in verification false negatives
• partner onboarding reduced from 2 days → 4 hours

Designed event-driven architectures to support asynchronous financial workflows.

Technologies used

• Kafka
• Node.js
• microservices
• async processing pipelines

Use cases

• transaction processing
• financial event ingestion
• compliance and screening systems

Built decentralized applications with:

• smart contract settlement
• P2P transaction flows
• decentralized reward systems
• Web3 dApps

Technologies

Solidity
Node.js
React
Ethereum-based architecture

These repositories demonstrate system design, distributed systems, and Web3 architecture.

Distributed ecommerce architecture demonstrating event-driven microservices and asynchronous order processing.

Concepts

• event-driven architecture
• distributed services
• async order processing
• backend system design

Repo
https://github.com/DanielNeris/event-driven-ecommerce-system

High-throughput ingestion pipeline using Kafka and NestJS.

Concepts

• event streaming
• Kafka consumers
• ingestion pipelines
• scalable distributed processing

Repo
https://github.com/DanielNeris/nestjs-kafka-ingestion

Peer-to-peer auction platform built using Holepunch / Pear runtime.

Concepts

• decentralized networking
• P2P architecture
• distributed synchronization

Repo
https://github.com/DanielNeris/pear-p2p-auction

Smart contract auction system implemented in Solidity.

Concepts

• on-chain auction mechanics
• decentralized settlement
• Ethereum smart contract architecture

Repo
https://github.com/DanielNeris/auction-house-solidity

Nova Information Technology - Dubai

Working on backend infrastructure for regulated fintech platforms.

Key contributions

• Designed KYC verification APIs
• Integrated OCR, facial verification, and liveness detection
• Built SDKs and backend services for partners

Impact

• 20K+ identity verifications
• 35% reduction in verification errors
• partner integration time reduced 2 days → 4 hours

Zuvia

Architected backend infrastructure for a real-world asset tokenization platform.

Impact

• R$200M+ tokenized assets
• 5K+ investors onboarded
• designed hybrid on-chain/off-chain architecture

SHSquads

Delivered backend systems for 5 fintech clients.

Impact

• systems supporting 100K+ users
• APIs powering mobile and web apps

SkyDan

Built Web3 platforms including:

• decentralized gaming
• NFT platforms
• smart contract reward systems

LiveOn Solutions

Worked on backend systems for fintech including wallet and lending infrastructure.

Impact

• reduced API latency by 40%
• optimized MongoDB query performance

Node.js
TypeScript
NestJS
REST APIs
Microservices
Backend SDKs
API Design

Distributed Systems
Event-Driven Architecture
System Design
High-Reliability Systems
Async Processing Pipelines

Kafka
Event Streaming
Background Workers
Queue Processing

PostgreSQL
MongoDB
Redis
Data Modeling
Query Optimization

AWS
Docker
CI/CD Pipelines
Cloud Architecture

Solidity
Smart Contracts
Tokenization Platforms
On-chain / Off-chain Architecture
Web3 Infrastructure

KYC Infrastructure
Identity Verification Systems
OCR Integration
Facial Matching
Liveness Detection
Compliance-Driven Platform Design

LinkedIn
https://www.linkedin.com/in/danielneris

Portfolio
https://danielneris.com