Kasra B.
Front-end Developer
Experience
Jan 2025 - Present
11 monthsFront-end Developer
CanDo
- Refactored and modernized legacy student and teacher panels by upgrading outdated technologies and restructuring UI logic, improving Lighthouse performance scores from 68 to 88 and reducing key render times by 1.5 seconds.
- Implemented lazy loading and rendering optimizations, decreasing Largest Contentful Paint (LCP) by 40% across main dashboard pages.
- Established consistent coding standards with a custom ESLint and Prettier configuration.
- Collaborated with the CEO and admin staff in agile sprints to prioritize high-impact features.
- Worked with the design team to establish design standards, cutting front-end design-to-development time.
Nov 2023 - Jan 2025
1 year 3 monthsFront-end Developer
Nercidev
- Developed and deployed 12 CRM dashboards for both admin and user-facing panels using Next.js and TypeScript, replacing outdated codebases while improving load times by 35% through tree shaking and bundle size optimization.
- Integrated a centralized design system and reusable UI components, ensuring consistent branding and reducing time-to-deliver for new features.
- Implemented automated testing along with ESLint, Prettier, and Husky configurations.
- Collaborated with in-house and client design teams to deliver pixel-perfect, responsive, and accessible interfaces across all dashboards.
Jan 2022 - Nov 2023
1 year 11 monthsFront-end Developer
SeBuDA
- Implemented multi-language support for over 6 languages, including RTL languages such as Arabic and Persian, expanding the product’s reach to multiple international markets.
- Integrated multi-currency handling for over 6 currencies (EUR, USD, Indian Rupee, Ruble, etc.) using Recoil.js for efficient state management in a complex pricing environment.
- Built a WebSocket-based escrow system to enable real-time transaction status updates, improving reliability and user trust.
- Maintained legacy admin and user panels before rebuilding them from scratch, resulting in improved user productivity and streamlined workflows.
- Led comprehensive technical SEO improvements, including fixing 4xx and 5xx error pages, which contributed to the product reaching the first page of Google search results for key terms.
- Refactored the entire legacy codebase, enhancing performance by approximately 35% as measured by Lighthouse scores.
Apr 2021 - Jan 2022
10 monthsFront-end Developer
Cygen
- Developed 5 dashboards and landing pages using React, Next.js, and TypeScript, while also maintaining and fixing legacy projects involving pure HTML, CSS, and JavaScript.
- Refactored legacy codebases to improve maintainability and reduce issues such as responsive bugs and application crashes, supported by automated testing and linting practices.
- Updated and fixed cross-browser compatibility issues across 5+ projects, enhancing user experience and reliability.
- Collaborated closely with product managers and clients using Jira within an Agile development process to deliver features on time and according to specifications.
Mar 2020 - Apr 2021
1 year 2 monthsFront-end Developer
Avangard Tech
- Developed 3 dashboards and landing pages using Next.js and TypeScript, implementing performance optimizations such as lazy loading that improved real user load times on key projects.
- Optimized site performance, reducing load times by up to 40% and improving Core Web Vitals scores as measured by Lighthouse.
- Collaborated directly with clients through meetings and calls to align deliverables with business goals, delivering projects on schedule within an Agile team.
Jun 2019 - Mar 2020
10 monthsFront-end Developer
Freelancing
- Developed custom dashboards and P2P platforms for 2 clients in the gaming services industry using React and TypeScript.
- Built dynamic, responsive forms and interfaces tailored to client requirements.
- Integrated REST APIs and third-party services to enable essential business functionalities.
- Focused on optimizing website performance and user experience.
- Provided ongoing support and feature updates, collaborating with other freelancers to meet client needs.
Summary
Hello there! I am a front-end developer with over 6 years of hands-on experience who genuinely excels at crafting modern web experiences with Next.js, TypeScript, and React. What is my specialty? Taking those daunting legacy systems and transforming them into clean, maintainable solutions that make everyone’s work life easier. I pour my heart into creating performant, accessible interfaces and writing code that teams can build upon for years to come. Collaboration fuels me; whether I am working independently or partnering with talented teams, I bring enthusiasm and a proactive mindset to every project. For me, development isn’t just about writing code; it is about solving real problems and creating technology that genuinely helps people.
Languages
Persian
NativeEnglish
AdvancedEducation
Oct 2019 - Jun 2023
PGU (Persian Gulf University)
B.S. in Computer Science and Engineering · Computer Science and Engineering · Bushehr, Iran, Islamic Republic of
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