Sajib Khan
Professional Summary
Lead Software Engineer
10+ years driving frontend development, developing scalable web applications.
Expert in JavaScript (10Y), React/Redux (7Y), TypeScript/Next.js (5Y), Modern CSS & Git.
-
Proven track record in resolving complex issues through debugging and optimization.
Consistent experience working with USA, UK, and European companies since 2019.
WORK EXPERIENCE
Lead Software Engineer
Goava Sales Intelligence AB
🇸🇪
07/19 - Pres.
SKILLS
StackOver ow
• JavaScript • React
24k
Led a full UI/UX revamp that boosted application performance by 30% via
• Next.js
• TypeScript
React optimization, lazy loading and render blocking minimization.
• Redux
• CSS
Architected a scalable system using React, Redux, Next.js & TypeScript.
• HTML5
• Git
Delivered pixel-perfect, responsive interfaces from Figma designs using
modern CSS methodologies.
Mentored a 4-member frontend team, improving sprint velocity by 40%.
Collaborated with cross-functional teams to launch seven high-impact
Hyype
🇺🇸
11/21 - 11/22
Designed and implemented 100+ reusable TypeScript components across
platforms (hyy.pe & atrium.art) using Next.js.
Increased UI responsiveness and usability across devices while achieving
95% E2E test coverage using Cypress.
Senior Software Engineer
Concourse Open Community
🇺🇸
01/20 - 02/21
Delivered MVP features for web apps like DeFi Pulse & ETH Gas Station using
(Tags)
79
(Score-
CERTIFICATES
(check over 50 cert?)
Front End Libraries
Git in Depth
Worked with product owner directly. Streamlined end-to-end development
cycles, cutting time-to-market by 25%.
AppsCode Inc.
🇺🇸
EXPERT in JavaScript - @Pluralsight
Modern React with Redux
PROJECT
MyDailyLearn
JavaScript, React, Git, CSS
Collection of interview questions for frontend
development, categorized by topic and technology.
CSS Advanced Animations
Next.js, Redux, TypeScript & Styled-components.
Senior Software Engineer
68
JavaScript Algorithms and DataStructures Cert
product features.
Senior Software Engineer
9
11/14 - 06/19
HTML, CSS
Collection of interactive buttons, a distinct CSS
animation or, transition effect triggered on hover
Different Charts Using D3.js
D3.js, JS, CSS
Developed Kubernetes Dashboard leveraging Vue.js 2, Vuex with 95% reusable
A collection of dynamic charts including tree maps,
components. Automated testing using Jenkins CI.
choropleths, heat maps, scatterplots, and bar charts
Crafted a responsive website for appscode.com utilizing Hugo. Developed a
to visualize complex data interactively.
chrome extension.
EDUCATION
BSc in Computer Science and Engineering
Chittagong University of Engineering & Technology
ADDITIONAL SKILLS
Extensive experience with ES6+, React (hooks/context), Redux (+redux-saga), D3.js, GraphQL, Vue.js, and Node.js.
Master-level expertise in JavaScript/React architecture, delivering clean, e cient & scalable code using latest industry practices.
Skilled in implementing pixel-perfect, responsive designs from Figma using CSS (TailwindCSS, styled-components, SCSS, etc.).
Strong testing expertise using Cypress for E2E, Jest for unit testing, and Puppeteer/JenkinsCI for automations.
Hands-on experience with Blockchain, Web3, NFTs, and Decentralized Finance (DeFi) technologies.
Strong problem-solving and debugging skills, sharpened through competitive programming (ICPC/NCPC participation).
Proven technical leadership - successfully led frontend teams and mentored 50+ developers in my career.
v7.2.0
