ubaidshabbir.aptechiic's CV

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Profile summary

Accomplished Senior Software Engineer with 5 years of progressive experience in backend architecture and blockchain development. Track record of delivering smart contracts, microservices, and cloud infrastructure across multiple platforms. Dedicated to building scalable distributed systems and maintaining robust technical standards.

Career highlights

Smart Contract Delivery: Designed and delivered decentralized application smart contracts including ICO, Utility, DAO, Raffle, and NFT implementations, achieving an audited score of 9.2.

Backend Microservices Engineering: Built backend microservices using Java Spring Boot to manage user, notification, player, team, sports, discovery, and live scoring domains.

Cloud Infrastructure Management: Managed AWS cloud infrastructure components using CodePipeline, queues, Lambda, and Cognito alongside infrastructure as code through Terraform.

Blockchain Integration and Monitoring: Developed blockchain integrated backend services for transaction monitoring using Ethers.js and TypeScript across multiple smart contracts.

Key skills

TechnicalJavaScript TypeScript Java Node.js Express.js Java Spring Boot Next.js REST APIs React.js Vue.js React Native AWS (ECS, EC2, S3, KMS, Cognito, CloudWatch) Docker CI/CD PostgreSQL MySQL MongoDB Firebase API Gateway Design
ProfessionalSolidity Nest.js GCP Terraform Railway Vercel Netlify Microservices Event-Driven Processing Transaction Monitoring Systems Hardhat Foundry Web3.js Ethers.js Smart Contract Auditing IPFS ERC20/721/1155/1400/4626/3643/734/735/1967

Professional experience

Lead DeveloperJan 2025 - Present
EZBZ SolutionsKarachi

Directs core engineering initiatives for platform architecture and mobile development. Manages technical delivery across distributed cloud systems, backend services, and multi-platform applications.

  • Builds backend microservices using Java Spring Boot for user, notification, player, team, sports, discovery, and live scoring domains.
  • Manages AWS cloud infrastructure with CodePipeline, queues, Lambda, and Cognito, alongside infrastructure-as-code via Terraform.
  • Develops blockchain-integrated backend services for transaction monitoring using Ethers.js and TypeScript across multiple smart contracts.
  • Engineers cross-platform mobile wallet applications and operational admin panels using React Native Expo and React.js.
Blockchain DeveloperOct 2024 - Dec 2024
Cubix LabsKarachi

Managed blockchain development operations, focusing on token infrastructure and contract workflows for HPL Games within an engineering team of 10 to 12 engineers in 2024.

  • Designed and deployed Private Sale and Utility Token smart contracts using Solidity.
  • Built automated testing and deployment pipelines using Hardhat.
FullStack Blockchain DeveloperJun 2023 - Dec 2024
BloomLabs

Executed full-stack development for blockchain applications, overseeing the construction of backend API services and frontend interfaces. Designed transaction processing systems with PostgreSQL persistence while coordinating smart contract design and testing.

  • Designed and implemented backend API and gateway services for blockchain transaction processing, supported by PostgreSQL-backed logging and data persistence.
  • Developed and tested Orderbook and DAO smart contracts using Solidity.
  • Built frontend interfaces in Next.js and integrated backend APIs for a full-stack Web3 product.
Lead Fullstack DeveloperAug 2021 - Feb 2024
Office FieldKarachi

Directed backend API architecture design on Node.js while providing technical leadership to the engineering team. Oversaw smart contract development and on-chain tooling initiatives for decentralized applications.

  • Designed and delivered ICO, Utility, DAO, Raffle, and NFT smart contracts, achieving a 9.2 audit score.
  • Built a transaction monitoring panel and automated data scraping scripts for on-chain coin data.
FullStack Blockchain DeveloperMay 2021 - Aug 2022
Astronomia Finance
  • Developed, audited, and deployed the ASTRON token smart contract on the BSC blockchain.
  • Built token-swap functionality by integrating the Uniswap V2 SDK with a Material UI frontend.
EZBZ SolutionsJan 2025 - Present
Lead Developer Karachi
  • Developed blockchain-integrated backend services for transaction monitoring using Ethers.js and TypeScript, processing on-chain events across ICO, Sport token, Governance, and NFT contracts.
  • Developed and audited ICO, Sport token, Governance, and NFT smart contracts.
Cubix LabsOct 2024 - Dec 2024
Blockchain Developer Karachi
  • Designed and deployed Private Sale and Utility Token smart contracts using Solidity.
  • Built automated testing and deployment pipelines using Hardhat.
BloomLabsJun 2023 - Dec 2024
FullStack Blockchain Developer Remote
  • Implemented backend API and gateway services to handle blockchain transaction processing workloads.
  • Built PostgreSQL-backed logging systems and data persistence mechanisms for transaction records.
Office FieldAug 2021 - Feb 2024
Lead Fullstack Developer Karachi
  • Designed and delivered ICO, Utility, DAO, Raffle, and NFT smart contracts, resulting in a 9.2 audit score for the Utility contract.
  • Built a transaction monitoring panel and automated data scraping scripts for on-chain coin data.
Astronomia FinanceMay 2021 - Aug 2022
FullStack Blockchain Developer Remote
  • Developed, audited, and deployed the ASTRON token smart contract on the BSC blockchain.
  • Built token-swap functionality by integrating the Uniswap V2 SDK with a Material UI frontend.

Education

Bachelor’sJan 2019 - Jan 2023
SZABIST

Computer Science

  • Karachi
  • GPA: 3.24
SZABIST KarachiJan 2019 - Jan 2023
Bachelor’s in Computer Science GPA: 3.24