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Jubair Hossain
@engr_jubair_hsn
Professional Software Engineer and Consultant
Bangladesh
Inglese, Bengali
Chi sono
6+ years of experience, with 3+ years of remote work as a Senior Full Stack Engineer with hands-on experience in delivering scalable, high-performance web applications for global clients like Greenlight, Neustring, Billionapis, IFC, IOM, GRC, UNICEF, Save the Children
Expertise in JavaScript (ES6), TypeScript, Node.js, Express.js, NestJS, and front-end frameworks like React and Next.js, with strong knowledge of non-blocking IO and async programming with Test-Driven Development (TDD)
Fluent in English, capable of collaborating effectively with foreign stakeholders and teams across multiple TZ
Competenze
Jubair Hossain
offline •
Consulta i miei servizi
Applicazioni web full stack
I will engineer your system efficiently
Esperienza lavorativa
Senior Full Stack Engineer (Fully Remote)
Yaana • Full time
Dec 2024 - Present • 1 yr 5 mos
Architected an in-house loyalty-based microservice with cash and reward points, results in 36% redemption rate Implemented secure authentication services in Node.js and Express.js, ensuring 100% adherence to security best practices (HTTPS, HTTP-only cookies, password hashing) and introducing a seamless MFA experience using OAuth 2.0 Access and Refresh JWT tokens. Implemented component-based and route-based code splitting by dynamic import with Webpack SplitChunksPlugin to enhance Typescript-based React app performance, resulting in a 60% reduction in load time and a 19% increase in customer retention. Optimized the relational database queries significantly in PostgreSQL, reducing the database load by 17% by implementing proper indexing and connection pooling. Yielded Github Copilot to create unit, integration, and e2e tests with Jest and Cypress, leading to a notable 80% code coverage. Spearheaded multi-stage reusable builds in the Dockerfile, resulting in a 30% reduction in build time.
Senior Full Stack Engineer (Fully Remote)
Greenlight • Full time
Dec 2020 - Dec 2024 • 4 yrs
Engineered a preprocessing modular monolith system for API specifications that achieved 100% accuracy in splitting and analyzing paths for vulnerability detection by parsing AI-generated JSON and tab-delimited responses and inserting structured data into MongoDB. Crafted production-grade prompts for the GEMINI model, enabling precise analysis of heuristic and baseline sensitivity levels across multiple attributes. Developed intuitive visualizations of API path sensitivity using vertical and horizontal bar charts in Next.js, improving data clarity for stakeholders. Managed ArgoCD by modifying Helm chart for database verification inside AWS EKS Kubernetes cluster, resulting in a 60% more secure deployment. Architected a real-time analytics engine using ClickHouse and Amazon QuickSight, optimizing queries to slash data latency by 95% and deliver insights in under a second.
