Proficient in web3/smart contract development on ethereum and polygon. Have worked with javascript,typescript, react, redux, node,express,mongodb, Tailwindcss,Mantine, Solidity,Web3js, Etherjs, Wagmi, Rainbowkit,Hardhat,Chainlink,Foundry. Strong proficiency in gas optimization. I've built a nft renting protocol, which won pool prize in Lumos Lab hackathon. I also participated in ETHForALL hackathon, where i made Trustmarket(data marketplace in fevm). I also made a web3 job board call pepejoboard. I've built dex called araswap, v2 contract(araswapv2). I built a evm execution context in C++. I've built Bundleswap which aggregates token swap request to reduce transaction cost while swapping on a dex. I'm also actively researching in Defi, L2, Zk technologies.

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Summary: A highly motivated Blockchain Engineer with a robust blend of theoretical knowledge and hands-on development expertise. With a proven track record in mastering and implementing cutting-edge technologies, I pride myself on ensuring client satisfaction and fostering long-term relationships. My experience spans across various blockchain platforms and back-end technologies, making me a versatile asset in the ever-evolving tech landscape. Education: KHARKIV POLYTECHNICAL INSTITUTE Master’s degree in Software Engineering SEP 2009 - JUN 2014 Doctor of Philosophy - PhD, Computer ScienceDoctor of Philosophy - PhD, Computer Science SEP 2019 - MAR 2024 Languages: Ukrainian: Native Speaker Russian: Native Speaker English: Upper-Intermediate Technical Proficiency: Blockchain Technologies: Ethereum, Solana, Solidity, Rust, Hadhat, NodeJS, Web3JS, VueJS, and more. Back-end Technologies: Firebase, Kafka, Go base, Confluent-kafka, Akka, Cassandra, and more. Database Management: PostgreSQL, MongoDB, MySQL, Redis. Tools & Platforms: Vs Code, IntelliJ IDEA, WebStorm, Atom, Jenkins, Docker, Git, SVN, Jira, Trello. Projects: ChromaWay: Blockchain technology company focused on relational blockchain architecture. Roci.fi: A DeFi primitive for permissionless under-collateralized lending on Ethereum. Highvibe Network: Blockchain-based ecosystem for immersive experiences and multidimensional learning. BigTaurus: Crypto and Forex training platform with Token BGT CLUB. Korporatio: Merging International Business Company (IBC) and Decentralized Autonomous Organisation (DAO) to form Smart Companies.

I am Asim Hafeez, a Senior Software Engineer lead with 6+ years of experience building secure, scalable, and high-performance systems. I specialize in Go, Node.js (NestJS), TypeScript, AWS, PostgreSQL, MongoDB, and Kafka, with deep expertise in microservices, system design, and cloud infrastructure. I also architect frontend web applications and React Native mobile apps, designing scalable client architectures aligned with backend systems. Currently leading the backend team at Evert, where I architected the entire backend system from scratch, integrated Kafka for event-driven microservice communication, and conducted AI PoCs using Hugging Face and LangChain. I have led 0→1 product development across fintech and SaaS startups, turning concepts into production-ready systems under tight deadlines. In recent years, I've expanded into AI Engineering — building agentic AI systems, RAG pipelines, and LLM-powered tools using LangChain, LangGraph, OpenAI, and vector databases. I hold certifications from IBM, Frontend Masters, and others in Agentic AI, RAG, and AI application development. Beyond code, I am the co-author of "Designing Scalable Systems" (2024) — a 350+ page technical book on API protocols, microservices, databases, cloud solutions, scaling, and system security. I also write technical articles on Medium and run an AI-focused newsletter on LinkedIn with 1,300+ subscribers. What I bring to your project: ✔ Architecture & scalable system design from the ground up ✔ Frontend web application architecture and scalable UI systems ✔ React Native mobile app architecture and cross-platform development ✔ Backend development with Go, NestJS, TypeScript, and REST/GraphQL APIs ✔ Cloud infrastructure on AWS (DynamoDB, S3, Lambda, EC2) ✔ AI integrations — LangChain, LangGraph, OpenAI, vector DBs ✔ Blockchain/Web3 — Solidity, smart contracts, Chainlink ✔ Team leadership, code reviews, and engineering best practices Let's build something great together.

► BLOCKCHAIN DEVELOPER | SOLIDITY | AI-ASSISTED WEB3 I build and deploy Solidity smart contracts on Ethereum — secure, clean, and backed by real proof of work. I also integrate AI tools into my workflow to research protocols, analyze documentation, and build smarter. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⟡ Smart Contract Development: Solidity contracts written, tested, and deployed on Ethereum Sepolia testnet. ⟡ Chainlink Integration: Price feed integration for real-world data inside smart contracts. ⟡ Security Patterns: CEI (Checks-Effects-Interactions) pattern implementation for secure contract logic. ⟡ AI-Assisted Blockchain Tools: Built an AI-powered blockchain dictionary using Google AI tools — real world examples, use cases, and industry impact on demand. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHY WORK WITH ME: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ Real Proof of Work: Every contract is live on GitHub and deployed on testnet. Not just certificates — actual code. ✔ Security First: I don't just write contracts. I write contracts that follow industry security standards from day one. ✔ AI-Enhanced Workflow: I use NotebookLM and Gemini to research faster, analyze documentation deeper, and deliver smarter. ✔ Always Learning: Currently completing Cyfrin Foundry Fundamentals — advanced testing, fuzzing, and gas optimization. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CERTIFICATIONS: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⟡ Cyfrin Updraft: Blockchain Basics ⟡ Cyfrin Updraft: Solidity Fundamentals ⟡ Google AI Professional Certificate (7-course program) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Available for entry-level smart contract projects. Clean code. Real deployment. Proof on GitHub. Click "Message" to discuss your project.

I specialize in developing innovative web applications with a focus on security and user experience. My portfolio includes a secure bank management system featuring role-based authentication and robust database architecture, as well as a real-time QR-based student attendance system that streamlines attendance tracking through geolocation verification. I excel in optimizing database schemas and applying best practices for data integrity. My technical skills include PHP, MySQL, Django, and React.js, which I leverage to create dynamic, interactive applications. I am eager to bring your project to life with scalable solutions tailored to your needs. Let's connect and discuss how I can contribute to your team's success.

I find bugs before attackers do. No fluff. No automated scan dumps disguised as audits. I read code manually, think like an attacker, and tell you exactly what's broken and how to fix it. What I deliver: → Manual review of your Solidity contracts → Report with severity levels: Critical / High / Medium / Low → Working exploit scenario for every finding → Concrete fix — not "consider adding a check here" → Gas optimization as a bonus I work on: DeFi protocols · Token contracts · Staking · Bridges · Access control · Oracle integrations · Cross-chain logic Currently running active security research on live audit competitions — your code gets reviewed with the same depth I apply to $50K+ prize pools. Simple process: You share the repo → I review → you get a PDF report. No meetings required unless you want one. If I spot something critical before we even start — I'll tell you upfront. That's how I work. Since January 2025, I have been working as an Independent Smart Contract Security Researcher. I conduct manual audits of DeFi protocols, token contracts, and cross-chain systems, and actively participate in competitive audit programs alongside professional security researchers. My primary areas of expertise include identifying access control flaws, oracle manipulation vulnerabilities, reentrancy attacks, and economic attack vectors.

PERSONAL SUMMARY Recent Bachelor's graduate in International Program of Management, specialized in Human Resources, with practical experience in recruitment support, CV and candidate document pre-selection, customer service, administrative support, and communication. Detail-oriented, organized, and adaptable, with strong teamwork and problem-solving skills. Seeking opportunities in Human Resources, recruitment, administration, or business management. PREFERRED JOB Preferred Job: Talent Acquisition Specialist/Talent Management & Development Specialist/Human Resources Manager

I automate infrastructure and eliminate slow, manual deployments. 87% smaller Docker images. 41% faster CI builds. Full GitOps pipeline from git push to live — under 3 minutes. — Here's what I can build or fix for you: → CI/CD Pipelines (GitHub Actions / GitLab CI) Push your code. Everything else is automatic — build, test, containerize, deploy. → Kubernetes & ArgoCD (GitOps) Your infrastructure lives in Git. ArgoCD keeps the cluster in sync. Deleted a live namespace by accident? It rebuilds itself. Literally tested this. → Docker Optimization Bloated images slow down every build and eat server costs. I reduced a production Next.js image from 1.85 GB → 237 MB (55.4 MB runtime) using multi-stage builds and standalone output. → Monitoring & Observability Prometheus + Grafana dashboards so you see problems before your users do. → Infrastructure as Code Terraform + Ansible. Reproducible, version-controlled, no more "works on my machine." Cloud: AWS · DigitalOcean · VPS — What makes working with me different: I come from a full-stack development background — 3+ years building React, Node.js, and production Web3 applications. I've been on the other side of the pipeline. I know what developers actually need from their infrastructure: fast feedback loops, reliable deploys, and zero surprises in production. I don't just hand you a working pipeline and disappear. I document everything, explain the decisions, and make sure you can maintain it after I'm done. — Certifications: ✓ DevOps Engineer Professional — Iceberg Datalab ✓ PMP — Coursera ✓ Advanced Foundry — Cyfrin Updraft Tools I work with daily: Docker · Kubernetes · ArgoCD · GitHub Actions · GitLab CI · Terraform · Ansible · Prometheus · Grafana · AWS · Bash · Linux

Detail-oriented team player with strong organizational skills. Ability to handle multiple projects simultaneously with a high degree of accuracy. Organized and dependable candidate successful at managing multiple priorities with a positive attitude. Willingness to take on added responsibilities to meet team goals. To seek and maintain full-time position that offers professional and problem- solving skills.