Hirushi Mandakini Mendis - Software Developer

Overview

Full-stack web developer (mid-level) building CRUD-focused Jakarta EE backends and JavaScript/TypeScript frontends; strongest at delivering end-to-end CRUD features with clear separation between DAOs, BOs and servlets. The strongest proven skill is server-side Java application development and JDBC-backed DAO design as evidenced by files like WebPosBackend/src/main/java/com/example/flowers/dao/OrderDAOIMPL.java and WebPosBackend/src/main/java/com/example/flowers/controller/Order.java. There is little to no public evidence of automated testing, CI integration, contract or performance testing in the human-authored code.

Phone

Timeline

Associate Software Engineer · Middle

Hellen Global (Pvt) Ltd · Full-Time

Nov 2025 to Present 1 Year Partially remote

Developed and maintained full-stack web and mobile applications using React.js and Next.js on the frontend and Node.js/NestJS-based APIs on the backend. Built reusable UI components and production-grade REST APIs, contributing to code quality through reviews and performance improvements. Supported live system debugging, testing, and deployment workflows, and managed iOS and Android releases through App Store Connect/TestFlight and Google Play Console.

Next.js

React.js

Node JS

Nest.JS

Spring Boot

Firebase

React Native

Flutter

Tailwind CSS

JavaScript

TypeScript

MySQL

Python

University of Wolverhampton

Bachelor's Degree · Computer Science

2025–2026 Wolverhampton, England

Intern Software Engineer · Junior

Hellen Global (Pvt) Ltd · Internship

Apr 2025 to Nov 2025 7 Months Partially remote

Assisted with building and improving production web applications using React.js and Next.js alongside Firebase and Node.js. Implemented new features and fixed technical issues, working with Redux and responsive UI components using Tailwind CSS. Contributed to version control and team collaboration using GitHub and supported testing, deployment, and debugging across development environments.

React.js

Next.js

Firebase

Node JS

Redux

Tailwind CSS

JavaScript

GitHub

Bootstrap

Projects

Villa 846

Built a luxury villa rental and booking platform with reservation flows for villas, tours, and Ayurveda-related treatments. Implemented an admin dashboard for property management and automated booking confirmation notifications. Added secure sign-in and review flows using Google authentication and ensured responsive guest and admin experiences.

Hellen Global Company Website

Created and maintained the corporate website with responsive, desktop-and-mobile layouts. Implemented dynamic sections for services and portfolio content, improving SEO structure and overall site performance. Maintained a scalable frontend codebase to support future updates.

Smart HR System

Developed a full-stack internal HR management system with employee management and role-based access. Implemented attendance tracking and leave request workflows, plus project/task management with KPI tracking. Added performance evaluation and productivity reporting modules and designed MongoDB schemas to support efficient data retrieval.

Fin Mind AI

Built an AI-powered personal finance platform concept with features such as expense tracking, budgeting, missions, rewards, and user ranking. Implemented receipt scanning and categorization with OCR and added recommendation logic to support personalized financial guidance. Designed a scalable REST API with secure authentication and created savings-goal and contribution management features.

Technical skills

Languages

8

JavaScript

Java

TypeScript

Node JS

Python

C++

Dart

Kotlin

Java

6

Spring Boot

Spring Data JPA

Spring Security

Lombok

Spring MVC

SLF4J

Node JS

3

Nest.JS

Express

Prisma

Frontend

6

React.js

Next.js

Tailwind CSS

JQuery

Bootstrap

Redux

Mobile

3

Firebase

Flutter

React Native

DevOps

4

AWS

Git

Rest API

GitHub

Other

17

MySQL

PostgreSQL

Llama

Whisper

Gemma

Figma

Supabase

PostCSS

Frontend

Machine Learning

Prompt Engineering

State Management

TestFlight

Computer Vision

NLP

OCR

Tesseract OCR

Middle Backend Developer Confidence: Medium API Engineer

Mid-level backend developer specializing in building REST APIs with Java Spring Boot and Node.js focusing on clear layered architecture and pragmatic service implementations. The strongest proven skill is implementing authenticated, role-protected APIs and transactional data flows as shown by JwtConfigurationFilter.java, PreAuthorize usage in controllers and the Prisma transaction in backend_flower_shop/src/database/orderdetail.ts. Public code lacks structured observability, automated tests and production deployment/migration artifacts which limits confidence for operating large-scale services in production.

API Design

4/10

How well APIs are designed

Reasonable REST API design with versioned endpoints, role-based access control and explicit response handling, but missing advanced API patterns like pagination, idempotency keys and a consistent, documented error contract.

Evidence

FarmBackendProject/src/main/java/com/example/farmBackend/controller/CropController.java

FarmBackendProject/src/main/java/com/example/farmBackend/controller/FieldController.java

FarmBackendProject/src/main/java/com/example/farmBackend/controller/MonitoringLogController.java

Data Layer & Database

4/10

Working with databases

Layered data access with JPA repositories and explicit JDBC usage plus transaction usage in services and Prisma transactions in Node.js; shows DB awareness but no migration history or advanced query tuning evidence.

Evidence

FarmBackendProject/src/main/java/com/example/farmBackend/Service/impl/StaffServiceIMPL.java

backend_flower_shop/src/database/orderdetail.ts

java-new-pos/src/main/java/org/example/model/ProductModel.java

Scalability & Performance

2/10

Handling load and speed

Some transactional correctness (Prisma transaction for stock decrement) but little in the way of caching, rate limiting, load testing or documented scaling strategies.

Evidence

backend_flower_shop/src/database/orderdetail.ts

System Architecture

4/10

Overall system structure

Clear layered architecture (controllers/services/daos/entities) and separated security/configuration concerns, but no evidence of multi-service orchestration, config/secret rotation, or advanced fault-isolation patterns.

Evidence

FarmBackendProject/src/main/java/com/example/farmBackend/config/JwtConfigurationFilter.java

FarmBackendProject/src/main/java/com/example/farmBackend/Service/impl/StaffServiceIMPL.java

Security & Auth

4/10

Protecting data and access

Practical authentication and authorization work is present (JWT validation, PreAuthorize role checks, bcrypt/jwt usage in Node code), but secrets lifecycle, token revocation and thorough input validation are not fully surfaced.

Evidence

FarmBackendProject/src/main/java/com/example/farmBackend/config/JwtConfigurationFilter.java

FarmBackendProject/src/main/java/com/example/farmBackend/controller/CropController.java

backend_flower_shop/src/route/UserRoute.ts

Reliability & Observability

3/10

Stability and monitoring

Basic reliability patterns exist: service-layer transactions and try/catch handlers plus a JWT filter that returns JSON for expired tokens, but structured logging, metrics, retries with backoff and test-driven incident fixes are lacking.

Evidence

FarmBackendProject/src/main/java/com/example/farmBackend/controller/FieldController.java

FarmBackendProject/src/main/java/com/example/farmBackend/controller/MonitoringLogController.java

backend_flower_shop/src/database/orderdetail.ts

Expertise

Java· Middle

Node.js· Middle

Microservices & API Architecture· Middle

Databases & Vector Storage· Middle

Industries

Commerce· Middle

Farming & Agriculture· Middle

Technologies

Node JS· since 2025 · Middle

Rest API

Spring Boot· since 2025

Prisma

Spring MVC

Spring Data JPA

Spring Security

Recommendations

Add unit and integration tests around services and DB transactions, and include example test configs to demonstrate resilience under failure.
Introduce structured logging and basic metrics (request latencies, error rates) and replace System.out/console logs with a logger to support observability and alerting.
Add a migration tool and migration history (Flyway or Liquibase for Java, Prisma migrations tracked) and document schema evolution to improve deploy safety.
Standardize API error contracts and add pagination/idempotency for write endpoints; avoid storing large binary payloads as base64 in DB - move to blob/file store or object storage.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

FarmBackendProject java-new-pos backend_flower_shop

Middle Frontend Developer Confidence: Medium App Engineer

Frontend web developer focused on form-heavy CRUD interfaces and classic DOM-based app pages, at a middle level of experience. The strongest proven skill is implementing end-to-end browser form flows and API integrations with file uploads and auth handling as shown in FarmFrontend/assets/js/equipment.js and FarmFrontend/assets/js/monitoringLog.js. There is limited evidence of automated testing, modern component frameworks, advanced accessibility, or measured performance engineering in public code.

UI Component Architecture

2/10

How interface parts are built

Code is organized by page with reusable functions but there is no component system, no composition patterns, and a lot of direct DOM/jQuery manipulation instead of modular UI components.

Evidence

FarmFrontend/assets/js/equipment.js: page-scoped functions (setEquipmentId, loadFields, loadStaffs, populateEquipmentForm)

FarmFrontend/assets/js/crop.js: generateCropCode, setCropCode and page logic separated into functions

FarmFrontend/assets/js/field.js: form handlers and modal controls implemented per-page

Responsive & Cross-browser

3/10

Works on all screens and browsers

CSS shows some responsive techniques (grid, auto-fit, clamp) and vendor fallbacks, but there is no systematic cross-browser feature detection, RTL/i18n support, or advanced layout strategies.

Evidence

foodie/style.css: grid-template-columns, repeat(auto-fit, minmax(...)), clamp() usage and responsive rules

HirushiMandakini/my_portfolio/src/main/java/org/example/my profile.html: semantic sections and navigation structure used for layout

Performance Optimization

2/10

Speed of the interface

Small, pragmatic performance-aware choices exist (localStorage size checks, data reduction before storage) but there is no measured optimization, bundle strategy, virtualization or profiling artifacts.

Evidence

FarmFrontend/assets/js/crop.js: optimizedCrops mapping and try/catch when storing to localStorage to handle large payloads

FarmFrontend/assets/js/equipment.js: generation of IDs and client-side validation reduces unnecessary requests

Accessibility & Semantics

2/10

Usable for everyone

Basic semantic HTML and form controls are present and images have alt text, but there is almost no ARIA, focus management, keyboard affordances beyond Enter key handlers, or automated a11y tooling shown.

Evidence

HirushiMandakini/my_portfolio/src/main/java/org/example/my profile.html: nav and section semantics used but no ARIA attributes

FarmFrontend/assets/js/field.js: form controls and keyboard Enter handlers but no focus management or ARIA for custom widgets

State Management & Data Flow

3/10

Managing data in the app

Clear server-state interactions with fetch and jQuery AJAX, FormData usage for file uploads, and repeated 401/403 handling show practical API discipline, plus some local caching; missing advanced request cancellation, optimistic updates or state machines.

Evidence

FarmFrontend/assets/js/equipment.js: fetch/POST/PUT/DELETE with explicit 401/403 handling and Authorization header

FarmFrontend/assets/js/monitoringLog.js: FormData for file uploads and AJAX CRUD flows with error handling

FarmFrontend/assets/js/crop.js: localStorage caching and conditional fetching logic

UX & Visual Polish

3/10

Look and feel quality

Good pragmatic UX details such as image previews, generated IDs, form reset behavior and user-facing alerts are implemented; however there are no skeletons, progressive loading indicators or undo patterns.

Evidence

FarmFrontend/assets/js/monitoringLog.js: previewImage and preview handling, form reset and setLogCode for perceived responsiveness

FarmFrontend/assets/js/crop.js: previewCropImage, generated crop codes and clearForm logic

FarmFrontend/assets/js/field.js: previewImage handlers and user feedback (alerts) on operations

Industries

Farming & Agriculture· Middle

Technologies

Frontend

Dart

Redux· since 2025

Nest.JS· since 2025

Tailwind CSS· since 2025

Next.js· since 2025

Express

Figma

Bootstrap· since 2025

React.js· since 2025

JQuery

PostCSS

Recommendations

Develop internal admin dashboards and CRUD management panels for agriculture or SMB workflows that require robust form handling, file uploads and server API integration.
Build and maintain legacy/gradual-migration frontends where jQuery/fetch-based pages coexist with newer stacks, focusing on stable API contracts and UX polish.
Own form-heavy frontends with client-side validation, image previews and local caching; expand by adding automated tests and accessibility improvements.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

my_portfolio FarmFrontend foodie

Middle QA Engineer Confidence: Medium Generalist

Full-stack web developer (mid-level) building CRUD-focused Jakarta EE backends and JavaScript/TypeScript frontends; strongest at delivering end-to-end CRUD features with clear separation between DAOs, BOs and servlets. The strongest proven skill is server-side Java application development and JDBC-backed DAO design as evidenced by files like WebPosBackend/src/main/java/com/example/flowers/dao/OrderDAOIMPL.java and WebPosBackend/src/main/java/com/example/flowers/controller/Order.java. There is little to no public evidence of automated testing, CI integration, contract or performance testing in the human-authored code.

Test Automation Frameworks

Building automated tests

Not evidenced in public code

Test Coverage & Strategy

What and how to test

Not evidenced in public code

API & Integration Testing

Testing how parts work together

Not evidenced in public code

Performance & Load Testing

Testing speed under load

Not evidenced in public code

Bug Reporting & Analysis

Finding and describing bugs

Not evidenced in public code

CI Test Integration

Running tests automatically

Not evidenced in public code

Industries

Commerce· Middle

Farming & Agriculture· Middle

Technologies

JavaScript· since 2024 · Middle

Java· since 2024 · Middle

TypeScript· since 2025 · Middle

SLF4J

Lombok

Recommendations

Implement API contract tests and schema validation (e.g., OpenAPI + schemathesis or JSON Schema checks) for the backend controllers to make integrations safer.
Add automated unit and integration tests for DAO and BO layers (JUnit + Testcontainers for the database) to prevent regressions and validate error paths (401/403/409/422/timeouts).
Introduce a lightweight CI pipeline that runs tests and collects artifacts, and add per-test retry/quarantine rules for any flakey UI checks.
Replace hardcoded localhost endpoints with configurable environment variables and centralize API client logic to facilitate testing and deployments.

Repositories

The developer's experience in this domain has been verified based on AI analysis of the following repositories:

FarmFrontend WebPosBackend Flower-Shop-Frontend

Job preferences

Work permits: United Kingdom