DAVID LONG
SENIOR FULLSTACK ENGINEER
Szczecin, Poland
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SUMMARY
High-skilled Senior Frontend Engineer with over 10+ years of experience in web & mobile app development, with a particular interest in using
React, Next.js, Node.js, JavaScript, Typescript, AI Integration to create high-performance user interfaces. Successfully built 9+ projects ranging
from small to big, consistently achieving high quality results, performance, and positive feedback. Able to work well independently and within
teams, I have brought many projects from the early stages of design, implementation, and testing into a fully-fledged production-ready
application.
EXPERIENCE
Senior Full Stack Engineer (Frontend Heavy) | Ignition GTM
AUG 2023 – AUG 2024
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Developed and implemented AI Copilot to enhance marketing processes through AI, incorporating features such as Product Idea,
Roadmap, Insights, Launch, Battlecard, and Persona
• Integrated the platform with Product Management tools including Asana, Clickup, Monday, and Jira to provide users with
comprehensive All-In-One opportunities
• Built own Design System based on Feature-Sliced architecture and reuse it across the application improving the scalability and
maintainability of the platform (Next.js, SCSS, Floating UI, Tiptap, Tippy.js)
• Implemented AI Copywriting to generate AI enhanced assets adding features for Ads, Product, Launch comms, etc
• Implemented a Launch Plan Editor with customized Tiptap editor and UX features such as drag & drop, bubble menu, and slash menu,
resembling Notion's functionality
Technologies: Next.js, Typescript, Apollo GraphQL, Context API, React Hooks, RESTful APIs, Node.js/Nest.js, SCSS, JEST/Cypress, Langbase,
AWS
Senior FullStack Engineer (Frontend Heavy) | ProjectAI
JAN 2020 – JUL 2023
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Developed intuitive user interface using React, Redux and Typescript, creating an engaging and user-friendly experience which
increased the company’s conversion rate by 50%
• Implemented the UI of Project Improvement Platform using Vue, Angular, integrating with RESTful APIs, GraphQL to communicate
with the backend server
• Overcome the frontend optimization issue by using lazy loading to load some data only when they are needed, and implemented
server-side optimizations like database queries with proper indexing
• Innovated how users interacted with the platform by integrating AI (GPT, Whisper) technologies, which upgraded the speed of user
response by 35%
• Built our own UI libraries using Polymer and reused it across the whole application improving scalability and reusability of the
application
Technologies: React, Redux, Vue, Angular, NgRx, Polymer, Typescript, GraphQL, RESTful APIs, Python, JEST/Cypress, GPT/Whisper,
LangChain, AWS
Frontend Developer | CLOUDWAVE
JUN 2016 – NOV 2019
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Crafted visually stunning user interfaces by building custom UI libraries and tailored components using styled-components,
automating the test cases which minimized the amount of time spent for test regression by 30%
• Enhanced financial controls to improve the clinical, operational and financial performance of health organizations, shrinking the time
spent for finance by 20%
• Orchestrated the integration of leading payment SDKs including PayPal and Stripe, which reduced the billing time by 45%
• Implemented Verification system for KYC and KYB which amplified the security of the system by 30%
• Implemented the test cases using JEST/Cypress to ensure every single part of the application is working correctly and reduced the time
spent for the whole testing
Technologies: React/Next.js, Typescript, Ruby on Rails, Node.js/Express.js, GraphQL, JEST/Cypress, Payment (PayPal/Stripe), CI/CD,
AWS/GCO/Azure, Git, Algorithms
Junior Frontend Developer | LIZARD GLOBAL
JAN 2014 – MAR 2016
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Implemented B2B, B2C system for individual customers and businesses to make transactions
Spearheaded the creation and implementation of key functionalities such as Workflow and Timeline, Team chat on channels, etc
Demonstrated expertise in talent-driven design and cost-effective planning, resulting in visually appealing designs and mobileresponsive pages
• Created onboarding website for customers to make transactions secure and safe (Vue.js, PHP/Laravel)
Technologies: React, Vue.js, Angular.js, Node.js/Express.js, Socket.io, PHP/Laravel, React DnD, MongoDB, AWS
EDUCATION
Bachelor’s Degree in Computer Science | UNIVERSITI KUALA LUMPUR
OCT 2012
TECHNICAL SKILLS
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HTML, CSS, JavaScript, Typescript
Python, Java, C#, Ruby, Go
PHP, Laravel, Node.js, Ruby on Rails
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DevOps, Linux, Jenkins, CI/CD pipeline
Vue.js, Nuxt.js
jQuery, Bootstrap
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Solidity, Web3, AI (Artificial
Intelligence) Integration
AWS, Azure, GCP
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React, React Native, Next.js, Angular
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Docker, Kubernetes, Sonar Cube, Nexus
PERSONAL SKILLS
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Strong ability to communicate and collaborate with others
Proactive approach in adapting to dynamic environments
Sharp solutions combined with innovative thinking
Genuine enthusiasm for technology, and a keenness to acquire new competencies
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MySQL, PostgreSQL, MongoDB
GraphQL, WebPack, Git/Github
