Aibak Shahzad
@aibakshahzad
Senior full-stack engineer specializing in Next.js, NestJS, and AWS.
PakistanWhat I'm looking for
I am a senior full-stack engineer with 5+ years building SaaS and consumer applications using Next.js, NestJS, React, Node, and AWS. I focus on shipping production-ready features, improving performance, and mentoring engineering teams.
At Kosmic I led frontend development for an AI video-editing platform, implemented complex features with TypeScript and React, and ensured cross-browser session stability and payment integrations.
Previously I managed teams of 5+ developers at Devsinc, redesigned architectures, reduced sign-up drop-offs dramatically, and achieved high client satisfaction through careful library evaluation, caching, and refactoring.
I publish utility packages (npm), write tests with Jest and Cypress, and deploy on AWS and Docker; I seek roles where I can drive architecture, mentor engineers, and deliver impactful, user-centered products.
Experience
Work history, roles, and key accomplishments
Worked as a Senior Software Engineer at Toptal, building scalable web applications for global clients. Developed a scheduling platform with Google, Apple, and Outlook integrations, an NFT casting platform, reusable React/Next.js components, and scalable Node.js APIs. Owned AWS, Docker, and CI/CD deployments while delivering high-quality, production-ready features in agile teams.
Senior Software Engineer
kosmic.ai
Nov 2024 - Jan 2026 (1 year 2 months)
Built and shipped production-grade features for Kosmic AI, including a marketplace, Google Drive-style project management, and a teleprompter-based video recorder. Integrated OpenAI API and LangChain for AI workflows, built scalable Node.js/NestJS APIs and React/Next.js frontends with TypeScript, and deployed on AWS using clean, maintainable architecture.
Software Engineer
Kosmic
Aug 2023 - Nov 2024 (1 year 3 months)
Led development of an AI-powered video editing platform from scratch, implemented complex TypeScript/Next.js features and improved registration and session flows while writing unit and integration tests to ensure reliability.
Implemented frontend features for a freelance marketplace using React and TypeScript, refactored legacy React 15 code to functional components, and improved onboarding by designing peer-mentoring programs that halved ramp time.
Refactored a legacy ERP system to remove duplicate code and optimize data structures, published a global state management npm hook, and developed React Native apps deployed to app stores.
Education
Degrees, certifications, and relevant coursework
COMSATS University Islamabad
Bachelor of Software Engineering, Software Engineering
Grade: Silver Medalist
Bachelor of Software Engineering from COMSATS University Islamabad, completed in 2021 and awarded a Silver Medal.
Tech stack
Software and tools used professionally
Availability
Location
PakistanAuthorized to work in
Salary expectations
Social media
Job categories
Skills
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