What industries have you worked in as a Senior Frontend Developer?

I have extensive experience across various sectors, including e-commerce, blogging platforms, betting systems, and corporate communication applications. My work has primarily focused on improving user engagement and operational efficiency through innovative frontend solutions.

What are some key projects you've led, and what technologies did you use?

At Cashew, I developed responsive portals using React, Redux, and TypeScript, and integrated Checkout.com and PayFort for enhanced KYC processes. At Azkivam, I spearheaded the development of an admin panel and a Strapi-based blog platform using Node.js and React. Each project emphasized robust data management and user interface improvements.

Can you detail a challenge you faced in your frontend development career and how you overcame it?

One significant challenge was enhancing cross-browser compatibility and user engagement for Azkivam's admin panel and website. By focusing on JavaScript implementation and employing SCSS Module and MUI for design consistency, I improved accessibility and operational efficiency, which boosted user experience by 35%.

How do you ensure the quality and reliability of your software deployments?

I implement rigorous testing protocols using tools like Cypress and Jest to ensure code quality. I also use CI/CD pipelines with GitHub Actions and Jenkins for automated deployments, which helps reduce deployment time and errors, ensuring robust and efficient software delivery.

What has been your approach to learning and integrating new technologies into your projects?

I am committed to continuous learning and have expanded my skills from frontend to full-stack development. I actively incorporate new technologies like Nest.js for backend architecture and ORM to craft comprehensive solutions. My approach is hands-on, integrating new learnings into projects to solve real-world problems effectively.

How do you handle project management and teamwork in complex projects?

I employ Agile methodologies, utilizing tools like Jira and Scrum to manage project timelines and deliverables efficiently. My role often involves leading teams, conducting code reviews, and maintaining high coding standards to foster a collaborative and productive work environment.

Comprehensive Guide: Installing, Configuring, and Managing ArangoDB Backups on AWS

Introduction

This guide provides step-by-step instructions on automating ArangoDB installations, updates, and backups using Shell scripts, from start to finish.

Installing the Latest Version of ArangoDB on Ubuntu 18.04

Visit the ArangoDB website to download the latest version of the database. As of this guide, the current version is 3.6.5-1. Below is a script to install and configure ArangoDB on an AWS EC2 server.

Important Precautions

Ensure that you stop the ArangoDB service and switch your application to maintenance mode before proceeding.

#!/bin/bash
sudo systemctl stop arangodb3.service
sudo cp -r /etc/arangodb3/ ~/arango-config-backup
curl -OL https://download.arangodb.com/arangodb36/DEBIAN/Release.key
sudo apt-key add - < Release.key
echo 'deb https://download.arangodb.com/arangodb36/DEBIAN/ /' | sudo tee /etc/apt/sources.list.d/arangodb.list
sudo apt-get update
sudo apt-get install arangodb3=3.6.5-1
sudo sed -i "s+endpoint = tcp://127.0.0.1:8529+endpoint = tcp://0.0.0.0:8529+g" /etc/arangodb3/arangod.conf
sudo systemctl enable arangodb3.service
sudo systemctl start arangodb3.service
sudo systemctl status arangodb3.service
sudo sysctl -w "vm.max_map_count=1024000"

Backup and Upload ArangoDB to Amazon S3

This script handles the backup of ArangoDB and its upload to Amazon S3 storage.

#!/bin/sh
NOWDATE=$(date +%Y-%m-%d)
DIRNAME="Your directory name"
BUCKETNAME="Your bucket name in S3"
DATABASENAME="Your database name"
mkdir -p "/home/ubuntu/backup/$DIRNAME"
arangodump --server.endpoint tcp://127.0.0.1:8529 --server.username root --server.password 'yourpassword' --server.database $DATABASENAME --output-directory "/home/ubuntu/backup/$DIRNAME/" --compress-output --overwrite
tar -czvf /home/ubuntu/backup/$NOWDATE-$DATABASENAME-backup.tar.gz -C /home/ubuntu/backup/$DIRNAME .
aws s3 cp /home/ubuntu/backup/$NOWDATE-$DATABASENAME-backup.tar.gz  s3://$BUCKETNAME/dbbackup/
aws s3 rm s3://$BUCKETNAME/dbbackup/$LASTDATE-$DATABASENAME-backup.tar.gz
rm -rf /home/ubuntu/backup/$NOWDATE-$DATABASENAME-backup.tar.gz
rm -rf /home/ubuntu/backup/$DIRNAME/*

Restore ArangoDB from Amazon S3

The following script details the procedure to restore ArangoDB from a backup stored on Amazon S3.

#!/bin/sh
DIRNAME="Your directory name"
BUCKETNAME="Your bucket name in S3"
DATABASENAME="Your database name"
read -p "Please enter file date (YYYY-MM-DD):" FILE_NAME
aws s3 cp s3://$BUCKETNAME/dbbackup/$FILE_NAME-$DATABASENAME-backup.tar.gz /home/ubuntu/backup/
tar -xzvf /home/ubuntu/backup/$FILE_NAME-$DATABASENAME-backup.tar.gz -C /home/ubuntu/backup/$DIRNAME
arangorestore --server.endpoint tcp://127.0.0.1:8529 --server.username root --server.password 'yourpassword' --server.database $DATABASENAME --input-directory "/home/ubuntu/backup/$DIRNAME" --create-database
rm -rf /home/ubuntu/backup/$FILE_NAME-$DATABASENAME-backup.tar.gz
rm -rf /home/ubuntu/backup/$DIRNAME/*

Automating Backups with Systemd Services

Automate your backup tasks with systemd services for better management and reliability.

Navigate to /etc/systemd/system and create backup.service and backup.timer.
Configure the backup service file to run

the backup script. 3. Set the timer to execute the backup script at a specified time.

[Unit]
Description=Schedule ArangoDB backup service
[Timer]
OnCalendar=*-*-* 02:30:00
Unit=backup.service
[Install]
WantedBy=multi-user.target

[Unit]
Description=Run ArangoDB backup script
[Service]
ExecStart=/bin/bash /home/ubuntu/backup/backup.sh

After setting up these files, manage the services as follows:

sudo systemctl daemon-reload
sudo systemctl start backup.timer
sudo systemctl status backup.timer

With these steps, you will have a fully automated backup system on your server.