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pasindu_randeni

Geshan Randeni

@pasindu_randeni

Full Stack Web and Software Developer

Sri Lanka
English, Sinhala
About me
I'm a Full-Stack Software Developer helping businesses turn ideas into reliable, production-ready digital products. I build modern business websites, web applications, admin dashboards, e-commerce solutions, REST APIs, and custom backend systems. I work with Node.js, NestJS, React, Next.js, TypeScript, PostgreSQL, MySQL, MongoDB, and AWS, with a strong focus on performance, maintainable code, security, and clear communication. Whether you need a new product built from scratch, an existing application improved, or a custom solution for your business, I can help take it from idea to deployment.... Read more

Skills

p
pasindu_randeni
Geshan Randeni
Offline • 
Average response time: 1 hour

See my services

Full Stack Web Applications
I will build a custom web application or business portal
From$80 / projectMore details

Portfolio

Work experience

Avantrio

Associate Software Engineer

Avantrio • Full-time

Aug 2025 - Jul 2026 • 11 mos

• Delivered full-stack features for Prop-AI, a property market analytics platform serving 1,000+ users and incorporating more than 1.5 million tracked transactions, using React, Next.js, Node.js, and Express.js. • Built and shipped an automated PDF generation service using Node.js and Puppeteer, cutting manual report preparation time by 2-3 hours per report and enabling instant on demand property analysis presentations. • Launched Deal Discovery, a premium analytics feature, and transaction visualisation tools with 4 comparison views enabling users to compare property data across multiple locations and user-adjustable timelines, end-to-end across frontend and backend. • Rebuilt mobile responsive views across 12+ sections, Deal Discovery (table and map views), an 8-subsection Property Analysis page, and the Project page and fixed mobile bugs on transaction/listing charts and tables, taking core functionality to a smooth state on iPhone and Android. • Debugged and resolved backend issues spanning business logic errors, API response handling, and data flow, while participating in Agile sprint planning, code reviews, and production deployments.

Panaceata

Software Engineer Intern

Panaceata • Full-time

Dec 2023 - Aug 2024 • 8 mos

• Designed and implemented serverless backend services using AWS Lambda, building 20+ Lambda functions across 4 production applications for business logic, data processing, and service communication. • Implemented a custom authentication system using AWS Cognito integrated with a local SMS OTP service, providing secure end-to-end user authentication. • Developed 5+ REST APIs using NestJS and created 20+ Angular components across production application pages, connecting backend services to frontend flows and AWS data stores (DynamoDB, RDS, S3).