🌐 Cefalo — Senior Software Engineer (Full Stack) | Team Lead
Jun 2023 – Current
→ Leading the House of Math (houseofmath.com) Dhaka team.
→ Guiding architecture, strategize, and support the team to deliver efficient solutions.
→ Led the development of “Curriculum” feature, resulting 60% increase in subscriber retention rate.
→ Enhanced website performance by reducing re-renders, optimizing API calls, and minimizing memory usage.
→ Improved API response times by optimizing database queries and implementing necessary caching.
→ Mentoring junior engineers to write readable, maintainable and high-quality code.
→ Tech stack: Next.js, Redux, Tailwind, Node.js, Express, Sanity, Redis, PostgresSQL, Firebase, Playwright, etc.

🌐 Cefalo — Senior Software Engineer(Full Stack)
Jan 2022-May 2023
→ Led the development of “Customer Onboarding” feature, achieving a 40% reduction in drop-off rates.
→ Collaborated in the development of “Statistics” panel, boosting participation in math activities by 30%.
→ Collaborated in the development of “Math Vault” project, achieving a 25% increase in user engagement.
→ Developed & integrated multiple backend APIs and efficiently managed the cache in frontend and backend.
→ Implemented optimistic update in several UIs that made user interactions 3 times faster.
→ Tech stack: Next.js, Redux, Tailwind, Node.js, Express, Sanity, Redis, PostgresSQL, Firebase, Playwright, etc.

🌐 Vanilla Agency LLC — Full Stack Engineer
Nov 2020 – Sept 2021
→ Developed 6 Shopify Apps from scratch that are being used by 500+ Shopify stores.
→ Developed theme components/UI for Shopify stores as per client’s requirement.
→ Tech stack: React.js, Vanilla JS, MongoDB, Koa, Shopify APIs, Gulp, Web APIs, etc.

🌐 Google Summer of Code(GSoC),Mozilla — 2020 Developer
May 2020 – Sept 2020
→ Collaborated with Firefox Add-ons team to develop an activity logging extension for Firefox.
→ Gathered users’ requirements and formulated user stories.
→ Built the project from scratch with reusable Web Components.
→ Completed the project having 79% test coverage.
→ Tech stack: Vanilla JS, Web APIs, Web Extension APIs, Jest, Web Components.

🌐 PeoplePerHour.com — Freelance Web Developer
Mar 2014 – 2018
→ Developed web application for remote clients from Europe & North America regions.
→ Completed 9 projects with 100% client’s satisfaction.
→ Tech stack: Wordpress, HTML, CSS, JavaScript, PHP, Bootstrap, JQuery

ziad@portfolio: ~ >$ cd education

👨🏻‍🎓 Ahsanullah University of Science and Technology(AUST)
Dhaka,BD
— BSc in Computer Science and Engineering

💡 Extension Activity Monitor-Monitor activities of other installed extensions in Firefox
May 2020
→ Privileged Firefox extension that uses the privileged “activityLog” API to monitor the activities of the other installed extensions in Firefox.
→ Written in Vanilla JavaScript from scratch.
→ Jest is used for unit testing.
→ Travis and Codecov are used for continuous integration and code test coverage respectively.

💡 Legal Aid-A cross platform application for legal/law support
(🏆 Intra-university champion)
Feb 2019 - 2020
→ Legal/Law support from legal experts, connect & book appointments with lawyers etc.
→ Supported the Web and Android platform.
→ Tech stack: React Native, Redux, Node.js and Firebase.

💡 Easy Project Management Tool-A desktop application to manage one’s personal/office projects
March 2019
→ Manage projects by creating projects & tasks, assigning works to employees, managing deadlines, tracking work progress, adding task dependencies etc.
→ Developed with Java and JavaFx.
→ Database configured: MSSQL, MySQL.

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