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Разрабатываю масштабируемые админ-панели, фронтенды SaaS-продуктов и UI плагинов на React, Next.js и TypeScript — с фокусом на производительность и чистую, поддерживаемую архитектуру, опираясь на более чем 6 лет опыта во фронтенде. Открыт к удалённой работе.
Скачать резюмеFrontend Developer working in React, Next.js, and TypeScript. I build admin dashboards, SaaS Frontend, and WordPress plugin UIs — including v1 frontend foundations and re-architectures of complex admin panels across products used by 6M+ users in 180+ countries. Strict typing, accessibility (WCAG, ARIA, RTL), and Core Web Vitals are standard expectations, not extras.

Frontend Developer
AI platform that summarizes videos, podcasts, PDFs, and articles into actionable content. Owned the Next.js web app — UI system, React Query data layer, audio player integration, and Zod-validated form flows across the full product surface.

WordPress template cloud where teams build, share, and manage professional websites at scale. Worked across the admin SPA, the Next.js marketing site, and the WordPress plugin frontend in parallel — plus enterprise tools and internal apps used by the wider engineering org.

Cloud hosting platform for managing and deploying digital resources at scale. Architected the v1 frontend in Vue.js + Tailwind CSS — component structure, state synchronization across the dashboard, optimistic updates on the ops panel, and clean handoff that ramped the next frontend developer in days.

WordPress documentation and knowledge-base plugin used by support and product teams to ship self-serve help. Re-architected the admin panel, built the ApexCharts analytics dashboard, and shipped the FAQ Builder — UI redesign measurably reduced weekly support ticket volume.

Customer dashboard where WPDeveloper users manage licenses, renewals, and premium product access. Built the React + Redux dashboard with ApexCharts-driven analytics views and tightened the data layer for predictable state across multi-step flows.

WordPress marketing and social-proof plugin showing real-time alerts for sales, reviews, and signups across millions of sites. Refined the admin UX, modernised feature-integration flows, and rebuilt notification authoring with QuickBuilder for less friction in the editor.

AI-powered recruitment SaaS with customizable career sites, automated screening, and applicant tracking for businesses of every size. Joined as the first frontend developer and shipped the v1 in Vue.js + Bootstrap — career-site interfaces and reusable component patterns still in use today.

WordPress editorial and scheduling plugin for teams running structured content publishing pipelines. Refined the admin-side scheduling UI, hardened missed-schedule edge cases, and improved editorial workflow ergonomics for daily editor use.

WordPress link management and URL shortener with branded-link analytics for marketing teams. Set up the frontend foundation as the first developer on the project, built core admin features, and shaped the analytics views with ApexCharts and Redux.

Startise is the dynamic parent company of WPDeveloper & many other subsidiaries which helps million to start, evolve and get success.
WPDeveloper is WordPress-based product company. With 6 million+ happy users from 180+ countries, the company is powering up WordPress web building experience.
Easy.Jobs is an AI Recruiting Software for Startups to Enterprises was never this fun. easy.jobs is your all-in-one recruitment SaaS tool for career page & ATS.

"On xCloud v1, Sapan led the frontend architecture from day one. He owned it end-to-end — component structure, state management, API integration with our backend team. The codebase was clean enough that our next frontend developer ramped up in days. That's the actual test of a v1 frontend, and Sapan passed it. Would work with him again without hesitation."
CTO @xCloud

"As a designer at Startise, my work depended on engineers respecting design intent. Sapan was one of the few who actually asked about it before implementing — why a spacing decision was made, why a transition lands a certain way. Most engineers don't. After a while I started sending him design drafts before they were polished, because the conversation usually made them better."
Lead Product Designer @Startise

"Managed several plugin features with Sapan as the frontend developer. Estimates were close to actual, blockers got flagged early instead of on the day they were due, QA didn't bounce his work much. From a PM standpoint, that's the difference between planning and constantly replanning."
Project Manager @WpDeveloper

"Built APIs for a lot of frontend developers over the years. The ones I dread are the ones who don't ask questions — they assume things, ship, and the bugs come back to me. Sapan was the opposite. Asked what comes back, what edge cases exist, what error shapes were possible. Templately integration went smoothly because of that upfront work."
Senior PHP Developer @Templately

"Templately ran on parallel codebases — the admin SPA on one side, the Next.js marketing site on the other. Mozammel handled both at the same time, which freed me up to focus on platform-side work. Code was maintainable, communication with the backend team during API design was direct without being abrasive. The kind of teammate you can hand work to and not have to follow up on."
Lead Engineer @Templately

"Several of the more demanding parts of the xCloud frontend, Mozammel and I built together — state synchronization across the dashboard, optimistic updates on the ops panel. He's methodical without being slow, knows when to escalate a question, and his code reads well enough that I never had to untangle anything when picking up where he left off."
Lead Engineer @xCloud

"Read a lot of Mozammel's code at Startise — Templately, BetterDocs admin, a few smaller plugin frontends. His TypeScript usage was mature; he was using it to actually catch bugs at compile, not just for autocomplete. Pragmatic component design, clean state choices. Solid frontend engineer who doesn't need much oversight."
Senior Javascript Developer @Startise

"Across his time on our engineering org, Sapan worked on Templately, xCloud, and the WPDeveloper plugin suite. What I trusted about him over the long run was consistency — strict TypeScript, accessibility done properly, real working knowledge of the WordPress ecosystem (which most React-first engineers skip). Frontend engineer who didn't need much oversight."
Director of Engineering @Startise

"Spent around six months on the TubeOnAI frontend alongside Sapan. Clean typed TypeScript, didn't over-engineer, easy to talk to when a component needed a rethink. The kind of peer who lifts the codebase quality just by being on the team — that's about all you can ask of a teammate."
Software Engineer @TubeOnAI

"Post-launch, the xCloud interface held up well — sensible component structure, loading and error states handled correctly (which sounds obvious but a lot of first releases skip them), and very few user complaints about the UI in the first weeks. From the PM seat, that's what mattered."
Lead Support & Product Manager @xCloud

"Frontend security usually gets the least attention — most engineers treat it as someone else's problem. Sapan was the exception on the Startise team. Sanitized inputs as a habit, asked about auth token handling when integrating new APIs, avoided XSS patterns I'd have to flag in code review for other developers. Easier collaboration when the frontend isn't fighting you on the basics."
Application Security Engineer @Startise

"Sapan joined easy.jobs as our first frontend developer back in 2020. Junior at the time but he didn't ship like one. Picked up Vue.js and our Laravel API quickly, built the initial career site interface, and the component patterns he established are still in use today. Setting the frontend foundation for a SaaS is make-or-break work, and he got it right."
Lead Engineer @Easy.Jobs

"After Sapan rebuilt the BetterDocs admin UX, our weekly support ticket volume dropped enough that the support lead mentioned it in a standup. UI that explains itself instead of needing a manual — that's the right kind of frontend work, and not every engineer thinks in those terms."
Associate Product Manager @WPDeveloper

"Most engineers I hand designs to ship the screens, then come back with questions after we notice something's off. Sapan asked first. He'd catch hover states I hadn't fully specced, flag spacing inconsistencies in my own files, push back when something didn't look right. Saved a revision cycle on most of the projects we did together."
UX UI Designer @Startise

"At TubeOnAI, the entire frontend was Sapan's — he worked with us remotely, part-time, for a few months. We're a small team and managing remote contractors usually adds overhead, but he made it easier than expected. Restructured our React Query setup in a way that visibly cut API costs, and unblocked the audio player integration that had been stuck for weeks. Communicative, didn't need management."
Co-Founder @TubeOnAI

"From a product perspective, Sapan was one of the few engineers I worked with who actually read the spec end-to-end. Came into planning meetings with edge-case questions I hadn't thought through, which forced cleaner specs out of me. His Templately work came back from QA with very few issues. PMs talk about which engineers are reliable to plan around — Sapan came up."
Lead Support & Product Manager @Startise

"As a WordPress developer, most of the React engineers I work with treat the PHP side as a black box — they ask me to translate everything. Sapan didn't. He took the time to learn our data structures and came to me with specific questions instead of generic ones. Made the Templately collaboration a lot less of a translation exercise."
Senior WordPress Developer @Templately

"After Sapan rebuilt the BetterDocs admin UX, our weekly support ticket volume dropped enough that the support lead mentioned it in a standup. UI that explains itself instead of needing a manual — that's the right kind of frontend work, and not every engineer thinks in those terms."
Associate Product Manager @WPDeveloper

"Frontend security usually gets the least attention — most engineers treat it as someone else's problem. Sapan was the exception on the Startise team. Sanitized inputs as a habit, asked about auth token handling when integrating new APIs, avoided XSS patterns I'd have to flag in code review for other developers. Easier collaboration when the frontend isn't fighting you on the basics."
Application Security Engineer @Startise

"Spent around six months on the TubeOnAI frontend alongside Sapan. Clean typed TypeScript, didn't over-engineer, easy to talk to when a component needed a rethink. The kind of peer who lifts the codebase quality just by being on the team — that's about all you can ask of a teammate."
Software Engineer @TubeOnAI

"Read a lot of Mozammel's code at Startise — Templately, BetterDocs admin, a few smaller plugin frontends. His TypeScript usage was mature; he was using it to actually catch bugs at compile, not just for autocomplete. Pragmatic component design, clean state choices. Solid frontend engineer who doesn't need much oversight."
Senior Javascript Developer @Startise

"Templately ran on parallel codebases — the admin SPA on one side, the Next.js marketing site on the other. Mozammel handled both at the same time, which freed me up to focus on platform-side work. Code was maintainable, communication with the backend team during API design was direct without being abrasive. The kind of teammate you can hand work to and not have to follow up on."
Lead Engineer @Templately

"Managed several plugin features with Sapan as the frontend developer. Estimates were close to actual, blockers got flagged early instead of on the day they were due, QA didn't bounce his work much. From a PM standpoint, that's the difference between planning and constantly replanning."
Project Manager @WpDeveloper

"On xCloud v1, Sapan led the frontend architecture from day one. He owned it end-to-end — component structure, state management, API integration with our backend team. The codebase was clean enough that our next frontend developer ramped up in days. That's the actual test of a v1 frontend, and Sapan passed it. Would work with him again without hesitation."
CTO @xCloud

"From a product perspective, Sapan was one of the few engineers I worked with who actually read the spec end-to-end. Came into planning meetings with edge-case questions I hadn't thought through, which forced cleaner specs out of me. His Templately work came back from QA with very few issues. PMs talk about which engineers are reliable to plan around — Sapan came up."
Lead Support & Product Manager @Startise

"Most engineers I hand designs to ship the screens, then come back with questions after we notice something's off. Sapan asked first. He'd catch hover states I hadn't fully specced, flag spacing inconsistencies in my own files, push back when something didn't look right. Saved a revision cycle on most of the projects we did together."
UX UI Designer @Startise

"Sapan joined easy.jobs as our first frontend developer back in 2020. Junior at the time but he didn't ship like one. Picked up Vue.js and our Laravel API quickly, built the initial career site interface, and the component patterns he established are still in use today. Setting the frontend foundation for a SaaS is make-or-break work, and he got it right."
Lead Engineer @Easy.Jobs

"Post-launch, the xCloud interface held up well — sensible component structure, loading and error states handled correctly (which sounds obvious but a lot of first releases skip them), and very few user complaints about the UI in the first weeks. From the PM seat, that's what mattered."
Lead Support & Product Manager @xCloud

"Across his time on our engineering org, Sapan worked on Templately, xCloud, and the WPDeveloper plugin suite. What I trusted about him over the long run was consistency — strict TypeScript, accessibility done properly, real working knowledge of the WordPress ecosystem (which most React-first engineers skip). Frontend engineer who didn't need much oversight."
Director of Engineering @Startise

"Several of the more demanding parts of the xCloud frontend, Mozammel and I built together — state synchronization across the dashboard, optimistic updates on the ops panel. He's methodical without being slow, knows when to escalate a question, and his code reads well enough that I never had to untangle anything when picking up where he left off."
Lead Engineer @xCloud

"Built APIs for a lot of frontend developers over the years. The ones I dread are the ones who don't ask questions — they assume things, ship, and the bugs come back to me. Sapan was the opposite. Asked what comes back, what edge cases exist, what error shapes were possible. Templately integration went smoothly because of that upfront work."
Senior PHP Developer @Templately

"As a designer at Startise, my work depended on engineers respecting design intent. Sapan was one of the few who actually asked about it before implementing — why a spacing decision was made, why a transition lands a certain way. Most engineers don't. After a while I started sending him design drafts before they were polished, because the conversation usually made them better."
Lead Product Designer @Startise

"As a WordPress developer, most of the React engineers I work with treat the PHP side as a black box — they ask me to translate everything. Sapan didn't. He took the time to learn our data structures and came to me with specific questions instead of generic ones. Made the Templately collaboration a lot less of a translation exercise."
Senior WordPress Developer @Templately

"At TubeOnAI, the entire frontend was Sapan's — he worked with us remotely, part-time, for a few months. We're a small team and managing remote contractors usually adds overhead, but he made it easier than expected. Restructured our React Query setup in a way that visibly cut API costs, and unblocked the audio player integration that had been stuck for weeks. Communicative, didn't need management."
Co-Founder @TubeOnAI
I review product requirements, user stories, and feature specifications to understand the expected functionality and user experience. This helps ensure development aligns with product goals and technical expectations.
Notes from running the React Compiler on the BetterDocs admin (a 4-year-old codebase with ~80 components and useMemo scattered everywhere) and starting clean with it on xCloud v1. What broke, what did not, and where I still reach for manual memoization.
Notes from rebuilding sapan.dev with the View Transitions API for navigation across 16 locales. Replaced an entire Framer Motion orchestration layer with a CSS file, found one annoying flash on RTL Arabic, and walked away with a much smaller bundle.
Modern CSS features I now reach for in every project — and the specific moments on the Templately admin and sapan.dev where each one replaced a chunk of JavaScript or some BEM gymnastics that had been there for years.
Spent a weekend rebuilding the static parts of sapan.dev in Astro to see what the islands model actually feels like. TTI dropped from ~600ms to ~150ms, the JS bundle went from 240KB to 11KB — and there were a few sharp edges that made me appreciate what Next.js handles for free.
Migrated sapan.dev from ESLint + Prettier to Biome over a weekend — pre-commit hooks went from ~12s to under a second, and the config dropped from three files to one. Notes on what migrated cleanly and what I had to keep ESLint for.
On sapan.dev the locale-detection logic lives at Vercel Edge — sub-30ms response from anywhere on the planet. On TubeOnAI we used Cloudflare Workers for auth-token validation. Notes on what genuinely belongs at the edge and what I have learned the hard way to keep regional.
Yes, I'm open to both freelance projects and full-time roles. I'm especially interested in working on modern web applications where I can contribute to building scalable and user-friendly interfaces.
I specialize in modern frontend technologies including React, Next.js, TypeScript, and Tailwind CSS. I focus on building performant, maintainable, and responsive user interfaces using these tools.
Yes, I have experience collaborating with remote and international teams. I'm comfortable working across different time zones and using modern collaboration tools to ensure smooth communication and delivery.
Yes, I can efficiently work with existing codebases by understanding the architecture and following established coding standards. I focus on maintaining consistency while improving performance and scalability where needed.
I follow best practices such as writing clean, reusable components and optimizing performance for fast load times. I also collaborate with QA teams to ensure the final product meets quality and usability standards.
I follow a structured workflow that includes understanding requirements, implementing designs, and collaborating with QA for testing. This ensures that every feature is reliable, scalable, and ready for production.
Yes, I work closely with designers and backend developers to ensure seamless integration between UI and functionality. This collaboration helps deliver a consistent and high-quality user experience.
You can reach out to me via email or through the contact options provided below. I'm always open to discussing new projects, ideas, or opportunities.
Открыт к удалённой работе на полную ставку, контрактам и краткосрочным проектам. Напишите — я отвечу как можно скорее.
Разрабатываю масштабируемые админ-панели, фронтенды SaaS-продуктов и UI плагинов на React, Next.js и TypeScript — с фокусом на производительность и чистую, поддерживаемую архитектуру, опираясь на более чем 6 лет опыта во фронтенде. Открыт к удалённой работе.