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Hi, I’m Arham Irfan, a Senior Full-Stack Engineer with 8+ years of delivering end-to-end web applications across fintech, sustainability tech, and blockchain. I design and ship scalable frontends with React, Vue, Angular, and Next.js, while building robust backends with Node.js, Nest.js, and Express. I’m passionate about performance, reliability, and impactful product outcomes. I thrive in DevOps-driven environments on AWS, Docker, Kubernetes, and Terraform, and I enjoy integrating AI/ML workflows into production systems. My focus is turning data into actionable insights, reducing costs, and accelerating delivery through automation and clean architecture.…Hi, I’m Arham Irfan, a Senior Full-Stack Engineer with 8+ years of delivering end-to-end web applications across fintech, sustainability tech, and blockchain. I design and ship scalable frontends with React, Vue, Angular, and Next.js, while building robust backends with Node.js, Nest.js, and Express. I’m passionate about performance, reliability, and impactful product outcomes. I thrive in DevOps-driven environments on AWS, Docker, Kubernetes, and Terraform, and I enjoy integrating AI/ML workflows into production systems. My focus is turning data into actionable insights, reducing costs, and accelerating delivery through automation and clean architecture.

Arham Irfan

Full Stack Developer, Blockchain Developer, Cloud Developer, +5

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Hi, I’m Arham Irfan, a Senior Full-Stack Engineer with 8+ years of delivering end-to-end web applications across fintech, sustainability tech, and blockchain. I design and ship scalable frontends with React, Vue, Angular, and Next.js, while building robust backends with Node.js, Nest.js, and Express. I’m passionate about performance, reliability, and impactful product outcomes. I thrive in DevOps-driven environments on AWS, Docker, Kubernetes, and Terraform, and I enjoy integrating AI/ML workflows into production systems. My focus is turning data into actionable insights, reducing costs, and accelerating delivery through automation and clean architecture.…Hi, I’m Arham Irfan, a Senior Full-Stack Engineer with 8+ years of delivering end-to-end web applications across fintech, sustainability tech, and blockchain. I design and ship scalable frontends with React, Vue, Angular, and Next.js, while building robust backends with Node.js, Nest.js, and Express. I’m passionate about performance, reliability, and impactful product outcomes. I thrive in DevOps-driven environments on AWS, Docker, Kubernetes, and Terraform, and I enjoy integrating AI/ML workflows into production systems. My focus is turning data into actionable insights, reducing costs, and accelerating delivery through automation and clean architecture.

Available to hire

Hi, I’m Arham Irfan, a Senior Full-Stack Engineer with 8+ years of delivering end-to-end web applications across fintech, sustainability tech, and blockchain. I design and ship scalable frontends with React, Vue, Angular, and Next.js, while building robust backends with Node.js, Nest.js, and Express. I’m passionate about performance, reliability, and impactful product outcomes.

I thrive in DevOps-driven environments on AWS, Docker, Kubernetes, and Terraform, and I enjoy integrating AI/ML workflows into production systems. My focus is turning data into actionable insights, reducing costs, and accelerating delivery through automation and clean architecture.

Skills

Experience Level

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Intermediate

Language

English

Fluent

Work Experience

Lead Software Engineer at Altruistiq

August 1, 2024 - June 6, 2024

Developed and maintained scalable, user-centric applications using Node.js, Next.js, Vue.js, and Express.js for tracking and reducing carbon footprints. Built backend APIs for large datasets related to sustainability, implemented real-time data processing systems, and designed dashboards for data visualization. Used Nest.js for modular backend services, integrated AWS cloud services, and employed Docker and Kubernetes for containerization and orchestration. Ensured application performance and security through authentication systems and TypeScript. Collaborated across teams to align features with business objectives.

Lead Software Engineer at StormX

July 1, 2023 - July 31, 2024

Integrated MongoDB and PostgreSQL with Node.js for optimized data storage, developed SSR applications using Next.js, and deployed React apps on AWS improving load times and availability. Led migration to React architectures improving performance by 30%, automated CI/CD pipelines with Jenkins and GitHub Actions, and integrated AWS Cognito for secure authentication. Designed and deployed Ethereum smart contracts, developed REST APIs with Nest.js, and built decentralized applications (dApps). Mentored junior developers and optimized blockchain smart contract gas usage.

Senior Software Engineer at DeltaOne

July 1, 2021 - June 30, 2023

Enhanced web applications with optimized performance and dynamic user interfaces, integrated real-time data processing and scalable backend services. Developed robust backend APIs and resilient microservices using Nest.js. Implemented authentication and authorization flows ensuring security. Deployed scalable solutions on AWS EC2, S3, and Lambda, reducing operational costs through automation. Led codebase optimizations and adoption of modern development practices. Set up CI/CD pipelines to improve deployment speed and reliability.

Senior Lead Developer at EtherMail

July 1, 2019 - June 30, 2021

Designed RESTful APIs using Node.js and Express.js, built server-side rendered applications with Nuxt.js and Next.js, and managed side effects in React apps with Redux-Saga. Developed and deployed smart contracts in Solidity for Ethereum-based dApps. Created modular microservices with Node.js, optimized GraphQL APIs, and designed microservices architecture using Docker and Kubernetes. Integrated Google Cloud Services for analytics and used Web3.js and Ethers.js for blockchain interactions including Layer 2 scaling solutions. Implemented secure authentication with JWT and OAuth2. Managed AWS infrastructure to reduce operational costs.

Full Stack Developer at Finixio

July 1, 2017 - June 30, 2019

Developed backend services with Node.js and Express.js and frontend applications using React.js and Redux. Designed and implemented multiple smart contracts in Solidity with features like Staking and Vesting. Created RESTful APIs, integrated JWT and OAuth2 for secure authentication, and deployed applications on AWS and Azure cloud infrastructure. Used Nest.js for backend API development with validation and error handling. Applied AJAX for interactive web pages and conducted comprehensive unit and integration testing with Jest and Mocha. Utilized IPFS and decentralized storage for blockchain data. Implemented DevOps CI/CD pipelines to improve deployment and automation.

Freelance Developer at Upwork

October 1, 2015 - September 30, 2017

Worked on various projects involving web design and application development using HTML, JavaScript, and TypeScript. Developed new features and maintained existing applications following MVC patterns. Used frameworks and libraries including Node.js, AngularJS, ReactJS, Bootstrap, and Express.js. Managed frontend development tasks with ReactJS, AngularJS, and backend tasks with NodeJS and Express.js.

Lead Software Engineer at Altruistiq

August 1, 2024 - October 6, 2024

Developed and maintained scalable, user-centric applications using Node.js, Next.js, Vue.js, and Express.js to enable businesses to track and reduce their carbon footprint. Developed backend APIs for large dataset processing related to sustainability efforts, optimized performance and data retrieval. Built real-time data processing systems for environmental impact analysis, designed sustainability dashboards, ensured seamless back-end integration, used Nest.js for modular backend services, integrated carbon footprint measurement tools, collaborated with cross-functional teams, leveraged TypeScript for type safety, implemented secure authentication systems, architected scalable backend services using Nest.js, utilized Docker and Kubernetes for containerization and orchestration, integrated AWS cloud services, and focused on optimizing application performance and scalability.

Lead Software Engineer at StormX

July 1, 2023 - July 31, 2024

Integrated MongoDB and PostgreSQL with Node.js for optimized data storage and querying. Developed server-side rendered applications with Next.js to boost performance and SEO. Implemented scalable cloud solutions using AWS S3 and Route 53. Built high-performance web applications using React.js, Vue.js, and Angular. Enforced TypeScript for type safety, led migration of legacy systems to React.js architectures improving performance by 30%. Utilized Node.js streams for efficient large-scale data processing, conducted unit testing with Jest, Mocha, and Enzyme, worked with Nest.js and TypeORM to handle complex database tasks, automated CI/CD pipelines with Jenkins and GitHub Actions, integrated AWS Cognito for secure authentication, designed and deployed Ethereum smart contracts, developed Nest.js REST APIs, employed DevOps principles for deployments, developed decentralized applications (dApps), optimized smart contract gas usage to reduce costs, and led technical mentorship programs.

Senior Software Engineer at DeltaOne

July 1, 2021 - June 30, 2023

Enhanced multiple web applications by optimizing performance and building dynamic user interfaces improving customer engagement and online ordering. Integrated real-time data processing and optimized backend services for high traffic and scalability. Designed and developed robust backend APIs for HKL platform with real-time updates. Built resilient microservices with Nest.js for scalability and reliability. Developed and maintained high-performance web applications using Node.js, Angular, Vue.js, Express.js, Next.js, and Nuxt.js. Implemented secure authentication and authorization with Nest.js guards and interceptors. Leveraged Next.js and Nuxt.js for SSR improving SEO and performance. Collaborated with cross-functional teams to deliver aligned features. Used AWS services including EC2, S3, and Lambda for scalable deployment, reducing costs. Led codebase optimizations and transitions to modern practices. Streamlined CI/CD pipelines using Jenkins and GitHub Actions.

Senior Lead Developer at EtherMail

July 1, 2019 - June 30, 2021

Designed RESTful APIs with Node.js and Express.js. Built high-performance web applications with server-side rendering using Nuxt.js and Next.js. Implemented Redux-Saga for side effect management in React apps. Developed and deployed smart contracts in Solidity for Ethereum-based dApps. Used Nest.js CLI and testing tools for development speed and code quality. Created microservices with Node.js for modularity and scalability. Optimized GraphQL APIs reducing response times by 50%. Designed scalable microservices architecture using Docker and Kubernetes. Leveraged Material-UI and Ant Design for UI design. Integrated Google Cloud Analytics for business insights. Used Web3.js and Ethers.js for blockchain interactions. Worked with Layer 2 scaling solutions like Polygon. Implemented secure authentication with JWT, OAuth2, and blockchain identity. Managed AWS cloud infrastructure for scalable deployment and cost reduction.

Full Stack Developer at Finixio

July 1, 2017 - June 30, 2019

Developed backend services using Node.js and Express.js ensuring high performance and responsiveness. Created frontend applications with React.js and Redux to improve team productivity. Developed multiple Solidity smart contracts with functionalities like staking, airdropping, and vesting. Designed and implemented RESTful APIs for integration with frontend. Integrated JWT and OAuth2 for security. Used TypeScript for type safety and maintainability. Managed cloud infrastructure on AWS and Azure including S3 and EC2. Managed version control with Git, Bitbucket, and Docker. Structured backend using Nest.js modules and middleware for secure and scalable features. Conducted unit and integration testing with Jest and Mocha. Utilized IPFS and decentralized storage for blockchain data management. Implemented JWT-based authentication and secure session management. Adopted DevOps practices with CI/CD pipelines using Jenkins and GitHub Actions.

Freelance Developer at Upwork

October 1, 2015 - September 30, 2017

Worked on diverse projects as a freelancer involving web design and application development using HTML, JavaScript, and TypeScript. Developed new features and maintained existing applications following the MVC pattern using Node.js, AngularJS, ReactJS, Bootstrap, and ExpressJS. Developed frontend components with ReactJS, AngularJS, and JavaScript using NPM. Developed backend services using Node.js and Express.js.

Lead Software Engineer — Full Stack at Altruistiq

August 1, 2024 - Present

Architected a full-stack sustainability-tracking platform with Node.js, Next.js, Vue.js & Nest.js, enabling 100+ enterprises to measure and reduce carbon footprint in real time. Designed RESTful APIs behind AWS API Gateway processing millions of environmental data points daily; improved query throughput via indexing and caching. Built real-time data-processing pipelines and interactive dashboards translating raw supply-chain data into ESG insights. Engineered Solana blockchain integrations reducing transaction latency by 35% through optimised RPC batching and parallel execution. Provisioned reproducible AWS infrastructure (EC2, S3, Lambda, RDS) using Terraform IaC; deployed containerised microservices via Docker & Kubernetes with zero-downtime rolling updates. Enforced full TypeScript across frontend and backend codebases, cutting production bug rate by 30% and accelerating onboarding for new engineers.

Lead Software Engineer — Full Stack at StormX

July 1, 2023 - July 1, 2024

Delivered full-stack decentralised rewards platform on Ethereum & Solana using React.js, Next.js, Nest.js & Node.js — handling 500k+ monthly active users. Achieved 40% page-load improvement via Next.js SSR and CloudFront CDN distribution; boosted SEO scores from 62 to 91. Led PHP-to-React.js migration, retiring 80k lines of legacy code and achieving a 30% performance uplift across all core user flows. Integrated MongoDB & PostgreSQL through TypeORM with optimised indexing; cut average query time by 45% under peak-traffic conditions. Optimised Solidity smart-contract gas consumption by 25% via assembly-level rewrites; strengthened security through formal audit tooling (Slither, MythX). Automated CI/CD pipelines with Jenkins & GitHub Actions, shrinking release cycles from 3 days to under 4 hours.

AI/ML Engineer — Full Stack at DuelNow

July 1, 2022 - June 1, 2023

Built enterprise-grade AI solutions end-to-end: RAG pipelines, GPT-4o chatbots, and agentic multi-agent systems with LangChain & LangGraph. Developed RESTful & GraphQL APIs for AI model serving on AWS SageMaker and GCP Vertex AI, maintaining p99 latency under 200 ms. Implemented real-time bidirectional communication via Socket.IO for live dashboards and AI-chat interfaces serving concurrent users. Containerised all services with Docker; orchestrated microservices on Kubernetes with auto-scaling policies tuned to ML workload spikes.

Senior Software Engineer — Full Stack at DeltaOne

July 1, 2021 - June 1, 2022

Enhanced digital business platform with Angular, Vue.js, Nuxt.js, Next.js, Nest.js & Express — improving core-web-vitals scores by 25%. Implemented SSR with Next.js & Nuxt.js, delivering measurable SEO ranking improvements across 15+ product pages. Automated infrastructure provisioning with Terraform across AWS & Azure, cutting operational costs by 20% through right-sized resource allocation.

Senior Lead Developer — Full Stack at EtherMail

July 1, 2019 - June 1, 2021

Architected decentralised email platform with Node.js, Express.js, Nuxt.js & Solidity smart contracts — one of the first Web3-native communication products. Optimised GraphQL API resolvers with DataLoader batching, slashing average response times by 50%. Integrated Polygon Layer 2 scaling, reducing on-chain transaction fees by 70% and increasing throughput 10×.

Full-Stack Developer at Finixio

July 1, 2017 - June 1, 2019

Developed full-stack applications with React.js, Redux, Node.js & Express; authored Solidity smart contracts with staking, airdrop, and vesting modules. Introduced TypeScript across three major products, eliminating runtime errors and improving developer velocity by ~20%.