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I’m a Senior Software Engineer with a passion for building scalable systems that blend AI, cloud, and blockchain technologies. I design microservices and backend architectures using Node.js, TypeScript, and Python so solutions scale quickly and stay reliable under heavy traffic. Over the years I’ve integrated ML models with real-time trading systems, built AI tools for prediction and automation, and developed smart contracts and decentralized apps on Ethereum and Solana. I enjoy working across the stack—from APIs and backend services to Kubernetes deployments—while mentoring teams on clean, efficient design. My focus is delivering fast, secure, and intelligent systems with teamwork, performance, and long-term stability at the center.…I’m a Senior Software Engineer with a passion for building scalable systems that blend AI, cloud, and blockchain technologies. I design microservices and backend architectures using Node.js, TypeScript, and Python so solutions scale quickly and stay reliable under heavy traffic. Over the years I’ve integrated ML models with real-time trading systems, built AI tools for prediction and automation, and developed smart contracts and decentralized apps on Ethereum and Solana. I enjoy working across the stack—from APIs and backend services to Kubernetes deployments—while mentoring teams on clean, efficient design. My focus is delivering fast, secure, and intelligent systems with teamwork, performance, and long-term stability at the center.

Danijel Sljukic

Web Developer, Full Stack Developer, Blockchain Developer, +3

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I’m a Senior Software Engineer with a passion for building scalable systems that blend AI, cloud, and blockchain technologies. I design microservices and backend architectures using Node.js, TypeScript, and Python so solutions scale quickly and stay reliable under heavy traffic. Over the years I’ve integrated ML models with real-time trading systems, built AI tools for prediction and automation, and developed smart contracts and decentralized apps on Ethereum and Solana. I enjoy working across the stack—from APIs and backend services to Kubernetes deployments—while mentoring teams on clean, efficient design. My focus is delivering fast, secure, and intelligent systems with teamwork, performance, and long-term stability at the center.…I’m a Senior Software Engineer with a passion for building scalable systems that blend AI, cloud, and blockchain technologies. I design microservices and backend architectures using Node.js, TypeScript, and Python so solutions scale quickly and stay reliable under heavy traffic. Over the years I’ve integrated ML models with real-time trading systems, built AI tools for prediction and automation, and developed smart contracts and decentralized apps on Ethereum and Solana. I enjoy working across the stack—from APIs and backend services to Kubernetes deployments—while mentoring teams on clean, efficient design. My focus is delivering fast, secure, and intelligent systems with teamwork, performance, and long-term stability at the center.

Available to hire

I’m a Senior Software Engineer with a passion for building scalable systems that blend AI, cloud, and blockchain technologies. I design microservices and backend architectures using Node.js, TypeScript, and Python so solutions scale quickly and stay reliable under heavy traffic.

Over the years I’ve integrated ML models with real-time trading systems, built AI tools for prediction and automation, and developed smart contracts and decentralized apps on Ethereum and Solana. I enjoy working across the stack—from APIs and backend services to Kubernetes deployments—while mentoring teams on clean, efficient design. My focus is delivering fast, secure, and intelligent systems with teamwork, performance, and long-term stability at the center.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Senior Full Stack Engineer at OKX

October 28, 2025 - September 25, 2025

Full Stack Developer at Vyntex Com

January 30, 2022 - November 20, 2024

Full Stack Engineer at Amazon Online

October 28, 2025 - Present

Software Engineer at Amazon Web Services (AWS)

October 27, 2025 - Present

Senior Software Engineer at OKX

September 1, 2025 - September 1, 2025

Designed and implemented microservices with Node.js, NestJS, and TypeScript, integrating AI/ML models (Python, PyTorch, TensorFlow) for predictive trading and portfolio optimization. Built REST and gRPC APIs for order execution, price aggregation, and analytics, supporting millisecond-level data across distributed trading engines. Architected real-time pipelines with Kafka, PostgreSQL, and Redis to process large blockchain data streams for live dashboards and auto-trading signals. Developed crypto analytics dashboards in React 18+, Next.js, and Tailwind for visualizing user portfolios and AI-driven insights. Integrated on-chain/off-chain data from Ethereum, Solana, and BNB Smart Chain for asset verification and fraud detection. Deployed containerized services using Kubernetes, Helm, and Terraform on AWS and Azure, maintaining 99.99% uptime. Enhanced observability using Prometheus, Grafana, and OpenTelemetry. Mentored engineers on AI-crypto integration, backend optimization, and secure

Blockchain Developer at Vyntex Com

November 1, 2024 - November 1, 2024

Developed and deployed smart contracts and decentralized applications (DApps) across Ethereum, Solana, and Binance Smart Chain. Built bots, token exchange tools, and liquidity pool trackers for real-time trading automation. Engineered secure wallet management and transaction pipelines for DeFi platforms. Designed REST/GraphQL APIs with Node.js and Python for blockchain analytics and wallet data services. Implemented on-chain monitoring for asset movement and cross-chain bridge validation. Collaborated with data scientists to train AI models for anomaly and fraud detection in on-chain data.

Web Developer at Amazon Online

July 1, 2021 - July 1, 2021

Delivered 20+ web projects combining React.js, Svelte.js, and Node.js for scalable e-commerce systems. Integrated SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/Redis/Firebase) databases for dynamic content and user analytics. Developed backend services with Node.js and Express, improving response times by 40%. Implemented CI/CD pipelines using Docker and Kubernetes for seamless deployment. Built API gateways and caching layers, improving service performance and reliability.

Senior Software Engineer at Amazon Web Services (AWS)

April 1, 2019 - April 1, 2019

Designed and scaled backend and frontend systems powering e-commerce and payment platforms for millions of users. Developed distributed microservices in Go, Java, and Node.js ensuring high availability and low latency. Modernized APIs with REST and GraphQL, increasing developer velocity and cross-team integration. Led frontend modernization using React, Vue, and Angular with Redux/Zustand for complex state management. Automated infrastructure with AWS CloudFormation, Lambda, SQS, and DynamoDB.

Senior Software Engineer at OKX

September 30, 2025 - September 30, 2025

Designed and implemented microservices with Node.js, NestJS, and TypeScript, integrating AI/ML models (Python, PyTorch, TensorFlow) for predictive trading and portfolio optimization. Built REST and gRPC APIs for order execution and analytics, enabling millisecond-level data processing across distributed trading engines. Architected real-time pipelines with Kafka, PostgreSQL, and Redis for live dashboards and auto-trading signals. Created crypto analytics dashboards in React 18+/Next.js for portfolio visualization and AI insights. Integrated on-chain/off-chain data from Ethereum, Solana, and BNB Smart Chain for asset verification and fraud detection. Deployed containerized services with Kubernetes, Helm, and Terraform on AWS and Azure, achieving high uptime. Enhanced observability with Prometheus, Grafana, and OpenTelemetry. Mentored engineers on AI-crypto integration and secure wallet protocols.