Yahampath Chandika
Yahampath Chandika

Full-Stack Software Engineer

Open to offers · Member since 5 Oct 2026
Location
Colombo, Sri Lanka
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Mid

About

Professional summary

I am a full-stack software engineer building web systems end to end, from user interfaces and application services to databases, cloud deployment, and operational tooling. My core stack includes TypeScript, JavaScript, Node.js, React, Next.js, NestJS, Angular, PostgreSQL, and AWS.

I have experience delivering multi-tenant SaaS products, including HR, payroll, e-commerce, laboratory management, tuition management, and club management platforms. I design secure systems with tenant isolation, role-based access control, authentication, audit trails, payment workflows, reporting, and scalable data models.

I build modern frontend experiences using React, Next.js, Angular, Tailwind CSS, TanStack Query, NgRx, and Vite. I focus on clean, responsive, user-friendly interfaces while collaborating across product, design, and engineering workflows.

On the backend, I develop REST APIs, GraphQL services, serverless workloads, database integrations, and cloud-native applications. I have worked with Node.js, NestJS, Express, Spring Boot, Prisma, Drizzle ORM, PostgreSQL, MySQL, Redis, Supabase, Firebase, and Cloudflare.

I am currently putting language models into production and automating manual business workflows around them. My recent work includes MCP servers, Claude and OpenAI integrations, typed tool design, AI agents, RAG and vector-search capabilities, and safe LLM access to internal business systems.

I work effectively in Agile teams and use tools such as Git, Jira, Confluence, ClickUp, Slack, Docker, GitHub Actions, AWS, Vercel, and Cloudflare. I am motivated by building practical products that are reliable, secure, and valuable to real users.

Skills

30 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Software Engineer Intern Amerck Inc

Implemented REST APIs using Node.js, Express, and Sequelize ORM.

Designed and developed frontend applications using React, Vite, Tailwind CSS, and RTK Query. Worked in an Agile Scrum environment using Jira and Confluence.

Software Engineer Intern Medisense Laboratory

Developed backend features for laboratory applications using Java, Spring Boot, and MySQL. Contributed to database design and system architecture.

Led UI/UX design work in Figma and delivered clean, user-friendly interfaces for the laboratory system.

Associate Software Engineer Olee AI LLC

Built and maintained Oleon, a 24/7 conversational AI customer-care agent for social media platforms using Next.js, Node.js, PostgreSQL, Supabase, AWS, and Vercel.

Developed the core management platform, including organization, services, chat, usage, and subscription management. Coordinated work in an Agile workflow using ClickUp and Slack.

Software Engineer 4Axis

Built a multi-tenant HR SaaS using NestJS, Prisma, PostgreSQL, and Redis, with row-level tenant isolation, permission-based RBAC, JWT authentication, httpOnly refresh cookies, and Redis token blacklisting. Delivered attendance features for biometric, mobile, QR-kiosk, and CSV workflows, as well as a multi-country payroll engine with versioned salary structures, overtime tiers, and statutory deductions.

Built DrawingDesk, an Angular SSR and PWA art-learning platform using Firebase and NgRx, including AI creative tools, SEO-friendly course and lesson routing, and internationalization. Implemented event ticketing with AWS Lambda, Stripe, PayPal, Firestore booking idempotency, server-side amount calculation, and SendGrid confirmations.

Software Engineer LAB360

Built MCP servers that expose Lawmatics, Drupal, Google Analytics, and respond.io capabilities to Claude and GPT models through typed tool schemas and safe dry-run or confirmation-based write workflows. Packaged these servers and more than 25 operating skills into an internal Claude Code plugin for non-technical staff.

Built CaseFlow Neo, an AI case-management and client-intake platform on Cloudflare Workers using D1, R2, Drizzle ORM, and Stytch SSO. Delivered a headless Drupal 11 and Next.js 15 website, a bidirectional Jira-to-Lawmatics synchronization service, and AI-driven document sorting and filing workflows.

Education

Learning history

Richmond College, Galle, Sri Lanka

GCE Advanced Level, Physical Science - Combined Mathematics, Chemistry, Physics

Completed Physical Science studies with grades of A in Combined Mathematics, B in Chemistry, and C in Physics.

NSBM Green University, Homagama, Sri Lanka

BSc Engineering (Hons), Computer Systems Engineering

Graduated with a GPA of 3.57 and Second Upper Division honors.

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