Full Stack Engineer

Open to full-time

Bio

Isaac A is a Full Stack Engineer with over four years of experience in delivering scalable SaaS platforms and real-time systems across various domains including fintech, HR tech, media, and e-commerce. Isaac's core stack includes React.js, Node.js, Next.js, and Python, which he uses to build web and mobile applications, APIs, and real-time systems. He is proficient in cloud technologies such as AWS Lambda and S3, and adept in database solutions like MongoDB and PostgreSQL. His work often involves real-time integrations using WebSockets and Socket.io, and he employs CI/CD practices with GitHub Actions for efficient deployments. At Punch Group, Isaac led a migration project improving call quality by 30% and reducing costs by transitioning to Twilio SDK. He also developed a secure video interview platform and an AI-powered voice agent. At 3Scorers, he enhanced API performance by up to 40% using Redis caching and data compression. Isaac holds a B.Sc. in Engineering Geology and an Associate degree in Software Engineering. He is well-suited for roles that require building high-performance, secure, and innovative software solutions in Agile environments.

Expertise

MongoDBGraphQLNode.jsPythonReactNext.jsGoAWSTypeScriptJavaScriptDatabase CachingCSS

Video Intro

Assessments

General Project Assessment

(91/100)

Great on Real-Time Dashboard in ReactMedium
Perfect on Implement LRU Cache AlgorithmMedium

Projects

Numisnest

Developed an end-to-end e-commerce platform featuring advanced filtering, pagination, and IP-based currency localization. Built real-time customer–vendor messaging using WebSockets and React chat components, improving user engagement.

Make A CV

AI resume creator, with natural language processing using LLM integration. Admin dashboard for user management, metrics, and blog.

Reeplay

An entertainment app for video streaming and live broadcasting with a mobile app built with Nodejs Nextjs and React Native. The core backend feature is built on AWS, including S3 for media storage, CloudFront for content delivery, MediaConvert for video transcoding, and EC2 for server hosting.

AndroTF

A multi-platform desktop application with more focus on the MacOS, built with Go, CGO and Wails for the purpose of mounting any MTP device on the disk to support file share and many other unique features. Also the WIFI and ADB section, to do the same in a more advanced and unique way.

Experience

Full Stack Engineer
Punch GroupFeb 2025 — Apr 2026
- Led migration of the company’s communication infrastructure from Vonage to Twilio Programmable SDK, improving call quality by 30% while reducing vendor-related costs.
- Architected and delivered a secure video interview platform using Daily.js, implementing authentication, session lifecycle management, and role-based access control.
- Designed and deployed an AI-powered voice agent by integrating RAG, OpenAI and ElevenLabs with a real-time React/MUI frontend, enabling conversational user interactions.
React.jsNode.jsNext.jsRedux ToolkitPythonMongoDBGraphQLWeb SocketPubSubMUITailwind CSSRecoil AtomDailyjs SDKTwilio SDKRAGMongoDBElastic ServiceVector DB
Software Engineer
3ScorersMay 2024 — Jun 2025
- Designed and implemented a fantasy point calculation algorithm powering real-time scoring dashboards used by active users.
- Improved API performance by up to 40% through Redis caching strategies, TTL configuration, and data compression.
- Automated background processing and scheduled jobs using BullMQ and Cron, ensuring timely and consistent data refreshes.
RedisSSERabbitMQPostgreSQLSequelizeORMSocke.ioNode.jsReactPlayWrightPuppeteerSchedulesAutomationWeb SocketWeb Scraping
Software Engineer, Full Stack
NCDFSep 2024 — Feb 2025
- Delivered responsive, production-ready web and mobile interfaces using Next.js and Tailwind, integrated with Node.js APIs and Redis caching.
- Implemented CI/CD pipelines using GitHub Actions, enabling zero-downtime deployments and faster release cycles.
- Integrated PayPal subscription workflows, including frontend payment flows and backend webhook handling, enabling premium feature access.
Node.jsNext.jsSocket.ioExpress.jsNest.jsFirebase Cloud MessagingAPI integrationPayment Gateway IntegrationLaravel
Full Stack Engineer, Backend focus
Tens NGJul 2023 — May 2024
- Integrated Google Location API to calculate trip costs dynamically and render results on interactive maps.
- Delivered features end-to-end in Agile sprints, collaborating closely with frontend engineers and product stakeholders.
- Implemented secure payment gateway flows, synchronizing backend verification with frontend checkout processes using PayStack and Paypal API.
MongoDBReactjsMUIMongoDB AggregationSwagger.jsSocket.ioPayment IntegrationGoogle Geolocation APILogistics
Frontend Engineer
Papper DazFeb 2022 — Nov 2022
- Designed reusable UI components and global state management using React Context API.
- Built a Progressive Web Application (PWA) using React.js to support cross-device accessibility.
- Collaborated in Agile sprints to deliver UI enhancements and end-to-end feature improvements.
React.jsProgressive Web ApplicationNuxt.jsContext APICSS