Hi, I'm Chenura

building

secure

web applications

About Me

I'm a Backend Engineer and Architecture Designer, currently serving as CTO at Fixey. I specialize in building scalable systems and designing robust architectures that power modern applications.

With deep expertise in backend development and system architecture, I transform complex business requirements into elegant technical solutions. I'm passionate about clean code, microservices architecture, and building high-performance systems that scale.

Web Development

90%

UI/UX Design

85%

Backend Development

88%

Architecture Design

85%

Technical Expertise

Comprehensive skill set backed by years of hands-on experience and real-world projects

26
Technologies
3.7y
Avg Experience
705
Total Projects
85%
Avg Proficiency

AWS

3y exp
83%22 projects

Docker

3y exp
85%25 projects

CI/CD

3y exp
82%20 projects

Kubernetes

2y exp
75%12 projects

Technical Skills

React

TypeScript

Next.js

React Native

Tailwind CSS

Node.js

Laravel

PHP

Express.js

GraphQL

PostgreSQL

MongoDB

Redis

MySQL

JavaScript

TypeScript

Python

PHP

Java

Go

Rust

C++

React

TypeScript

Next.js

React Native

Tailwind CSS

Node.js

Laravel

PHP

Express.js

GraphQL

PostgreSQL

MongoDB

Redis

MySQL

JavaScript

TypeScript

Python

PHP

Java

Go

Rust

C++

Featured Projects

Production-grade applications serving millions of users worldwide

E-Commerce Platform

Full Stack

Scalable multi-vendor marketplace handling 1M+ daily transactions

Daily Users
100K+
Transactions
1M+/day
ReactNode.jsPostgreSQL+3
View Details

Video Streaming Platform

Full Stack

Netflix-like streaming service with adaptive bitrate and CDN

Monthly Users
2M+
Video Start Time
<2s
Next.jsFFmpegAWS MediaConvert+2
View Details

Real-time Chat Application

Full Stack

Enterprise messaging platform with end-to-end encryption

Concurrent Users
500K+
Message Latency
<50ms
React NativeSocket.ioWebRTC+2
View Details

FinTech Payment Gateway

Backend

Secure payment processing system handling $10M+ monthly

Monthly Volume
$10M+
Transaction Speed
<3s
Node.jsPostgreSQLStripe+2
View Details

AI-Powered Analytics Dashboard

Full Stack

Business intelligence platform with predictive analytics

Data Points
100M+/day
Query Speed
<500ms
ReactPythonTensorFlow+2
View Details

Mobile Fitness App

Mobile

Cross-platform fitness tracking with AI workout plans

Downloads
500K+
App Rating
4.8★
React NativeFirebaseTensorFlow Lite+1
View Details

Professional Journey

A timeline of my professional experience and key achievements

Software Engineer

Fixey

2024 - Present

Building scalable full-stack applications and cloud infrastructure

Technologies

ReactNext.jsTypeScriptNode.js

Key Achievements

  • Developed core platform features
  • Optimized application performance

Backend Engineer

Tech Solutions

2023 - 2024

Designed and implemented robust backend systems and APIs

Technologies

Node.jsExpressMongoDBPostgreSQL

Key Achievements

  • Built RESTful APIs serving 100K+ requests/day
  • Implemented microservices architecture

Multicloud Engineer

Cloud Innovations

2022 - 2023

Managed multi-cloud infrastructure across AWS, Azure, and GCP

Technologies

AWSAzureGCPTerraformKubernetes

Key Achievements

  • Deployed applications across 3 cloud platforms
  • Automated infrastructure with IaC

Full Stack Developer

Startup Hub

2021 - 2022

Developed end-to-end web applications with modern tech stack

Technologies

ReactNode.jsTypeScriptMongoDB

Key Achievements

  • Built 5+ production applications
  • Implemented CI/CD pipelines
Scroll horizontally to see more

Problem Solving Skills

LeetCode-style challenges solved with optimal solutions and detailed explanations

4
Total Solved
1
Easy
2
Medium
1
Hard

Two Sum

Array
Easy

Given an array of integers nums and an integer target, return indices of the two numbers that add up to target.

GoogleAmazon
View Solution →

LRU Cache

Design
Medium

Design a data structure that follows Least Recently Used (LRU) cache constraints.

AmazonMicrosoft
View Solution →

Merge K Sorted Lists

Linked List
Hard

Merge k sorted linked lists and return it as one sorted list.

GoogleFacebook
View Solution →

Design Rate Limiter

System Design
Medium

Design a rate limiter that limits the number of requests per time window.

StripeTwitter
View Solution →

Want to see more? Check out my complete LeetCode profile

View LeetCode Profile

System Design & Architecture

Scalable, resilient architectures designed for high-traffic production environments

Microservices E-Commerce Platform

Scalable e-commerce system handling 1M+ daily transactions

1M+ users

Key Components

API Gateway
Auth Service
Product Service
Order Service
Payment Service
Notification Service
Analytics Service

Tech Stack

Node.jsRedisPostgreSQLRabbitMQDockerKubernetes

Performance Metrics

Latency<100ms
Throughput10K req/s
Availability99.99%
API GatewayAuth ServiceProduct ServiceOrder ServicePaymentNotificationAnalyticsPostgreSQLRedis Cache

High Performance

Optimized for speed

Secure

Enterprise-grade security

Scalable

Handles growth seamlessly

Resilient

Fault-tolerant design

Open Source Contributions

Active contributor to open source projects and maintainer of popular repositories

2586
Contributions
47 days
Current Streak
89 days
Longest Streak
234
Pull Requests
156
Issues Closed
432
Code Reviews

Contribution Activity

Less
More

Client Testimonials

Don't just take my word for it - hear from clients who've experienced the results

5.0
6 reviews
Sarah Johnson

Sarah Johnson

CTO

TechCorp Inc.

E-Commerce Platform

Exceptional developer who delivered our e-commerce platform ahead of schedule. The code quality and architecture decisions were outstanding. Reduced our page load time by 70% and increased conversion rates significantly.

View LinkedIn Profile
100% Job Success
Upwork
5.0 Rating
Fiverr
Top Rated
Freelancer
50+ Projects
Completed
Let's Work Together

Start Your Project

Available for full-time positions, contract work, and consulting opportunities. Let's discuss how I can help bring your vision to life.

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