Available to hire
Hi, I’m Hadi Kazemian, a passionate Full Stack Engineer with 7 years of experience building scalable and efficient web applications. I specialize in JavaScript, TypeScript, React, Node.js, and Next.js, and enjoy working in international, agile teams where I can collaborate closely with designers and developers alike.
I love creating responsive UI components and optimizing backend systems to deliver seamless user experiences. Mentoring junior developers and continuously learning to stay ahead in technology are also things I deeply value in my professional journey.
Skills
Language
English
Advanced
German
Beginner
Work Experience
Senior Full Stack Developer at Trading Terminal (SaaS-startup)
April 1, 2022 - PresentSpearheaded 5+ core product features, including a real-time trade journaling system and simulator redesign, reducing response time and API costs by 70% through optimized backend architecture. Engineered highly responsive UI components in collaboration with designers across 5+ projects, boosting user engagement by 15%. Delivered advanced data visualizations enhancing trader insights. Integrated Sentry into 12 projects, cutting error detection time by over 50%. Mentored junior developers and authored detailed onboarding guides for long-term team efficiency. Contributed to agile delivery within a cross-functional team, driving code quality with Jest, ESLint, Prettier, GitHub, and Dockerized CI/CD pipelines.
Mid-level Full Stack Developer at Geeks LTD (B2B)
April 1, 2022 - August 1, 2025Contributed to 8 enterprise-grade web applications by developing scalable backend services using C#, ASP.Net, SQL Server, and Entity Framework, maintaining efficient workflows with Git and Bitbucket. Designed and implemented responsive front-end components ensuring seamless cross-device user experience. Supported Dockerized CI/CD pipelines via Jenkins. Employed Test-Driven Development and executed UI test cases to increase code reliability and reduce bugs by 40%. Automated key testing workflows using Selenium, cutting manual QA effort by 50% and accelerating release cycles. Integrated AWS Machine Learning services, delivering intelligent UI behavior and personalized user experiences. Built and consumed multiple RESTful APIs facilitating integration between distributed components.
Full Stack Developer at University of Tehran Informatics Center
April 1, 2021 - August 1, 2025Collaborated within a cross-functional team of developers, QA engineers, and PMs to enhance and maintain a large-scale administrative and financial automation system built on Node.js, Express, SQL Server, and React.js. Reduced deployment time by 40% by designing and implementing CI/CD pipelines using Jenkins and GitLab. Led R&D in QA introducing modern testing methodologies improving system reliability and reducing critical bugs. Customized and extended TestLink’s front-end and back-end to align with QA processes, increasing test coverage and team efficiency. Authored UI/UX evaluations tailored to institutional needs and conducted usability audits proposing actionable improvements. Worked in a Linux-based development environment contributing to microservices-based architecture and service integration.
Senior Full Stack Developer at Trading Terminal (SaaS-startup)
April 1, 2022 - PresentSpearheaded 5+ core product features including a real-time trade journaling system and simulator redesign that reduced response time and API costs by 70% through optimized backend architecture using Node.js, Express, MongoDB, PostgreSQL, Redis, RabbitMQ, REST APIs, and Microservices hosted on AWS. Engineered highly responsive UI components collaborating with designers across 5+ projects, increasing user engagement by 15% utilizing React.js, Next.js, Ant Design, Vite.js, and CSS/SASS. Delivered advanced data visualizations with ChartIQ, TradingView, Chart.js, and Nivo for enhanced trader insights across 4 projects. Integrated Sentry for error detection in 12 projects, cutting detection time by over 50%, ensuring reliability on AWS infrastructure. Mentored junior developer and authored 10+ detailed documents including onboarding guides to promote long-term team efficiency. Contributed to agile delivery in a cross-functional team of 10, maintaining high code quality with Jest, ESLint, Pre
Mid-level Full Stack Developer at Geeks LTD
April 1, 2022 - August 1, 2025Contributed to 8 enterprise-grade web applications by developing scalable backend services with C#, ASP.Net, SQL Server, and Entity Framework while maintaining efficient workflows using Git and Bitbucket. Designed responsive front-end components with TypeScript, JavaScript, jQuery, HTML, CSS/SaaS, and Gulp.js for seamless cross-device user experiences. Supported Dockerized CI/CD pipelines using Jenkins, ensuring consistent and efficient deployments across microservices architectures. Applied Test-Driven Development (TDD) and comprehensive UI testing to increase code reliability and reduce bugs by 40%. Automated testing workflows using Selenium, halving manual QA effort and speeding releases. Integrated AWS Machine Learning services to deliver intelligent UI behavior and personalized experiences. Built and consumed multiple RESTful APIs for seamless integration in large-scale enterprise environments.
Full Stack Developer at University of Tehran Informatics Center
April 1, 2021 - August 1, 2025Collaborated with a cross-functional team of 15+ to enhance and maintain a large-scale administrative and financial automation system using Node.js, Express, SQL Server, and React.js. Reduced deployment time by 40% through designing CI/CD pipelines with Jenkins and GitLab. Led an R&D initiative in QA, introducing modern testing methodologies that improved system reliability and reduced critical bugs across 12 software environments. Customized and extended TestLink’s front-end and back-end to align with QA processes, enhancing test coverage and team efficiency. Authored UI/UX evaluation documents and conducted usability audits for university systems, proposing improvements. Worked in a Linux environment contributing to microservices-based architecture integrations.
Education
Master of Science at Allameh Tabataba’i University
January 1, 2018 - February 1, 2020Bachelor of Science at Iran University of Science and Technology
January 1, 2013 - September 1, 2017Master of Science at Allameh Tabataba’i University
January 1, 2018 - February 1, 2020Bachelor of Science at Iran University of Science and Technology
January 1, 2013 - September 1, 2017Qualifications
Industry Experience
Software & Internet, Financial Services, Education, Professional Services, Other
Skills
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