We are seeking talented NodeJS Developers to join our dynamic team at Saiko, a software company specializing in outsourcing for the Japanese and US markets. As a team member, you’ll work on both server-side and frontend aspects of our web applications, contributing to their full lifecycle. If you’re passionate about coding, problem-solving, and building innovative applications, we want to meet you!

Salary: Up to 25M VND (gross), based on skills and experience.

About Saiko

Saiko is a small, vibrant team dedicated to long-term collaboration. We focus on delivering high-quality software solutions for global clients, particularly in Japan and the US. At Saiko, we value relationships and aim to grow together with our team members.

Responsibilities

• Contribute to the entire application lifecycle, focusing on coding and debugging.
• Write clean, functional code for web applications.
• Troubleshoot and debug to ensure smooth performance.
• Conduct UI tests to optimize application performance.
• Leverage cutting-edge technologies to enhance legacy applications.
• Collaborate with clients to improve application quality.
• Build reusable code and libraries for future use.

Requirements & Skills

• 1-5 years of experience in software development with NodeJS.
• Experience with ExpressJS or NestJS.
• Experience with ReactJS or VueJS.
• Previous experience as a team/technical leader is a plus.
• Strong problem-solving skills and a positive mindset.
• Good English skills for client communication (written) and research.
• Knowledge of databases (MongoDB, PostgreSQL, or MySQL).
• Proficient with code versioning tools (Git preferred).
• Bonus: Open-source GitHub repositories, LeetCode profile, or similar.

Benefits

• Competitive salary: 10M – 25M VND (gross), based on ability and position.
• 13th-month salary and holiday bonuses (Lunar New Year, etc.).
• Work schedule: Monday to Friday, full weekend off (Saturday & Sunday).
• Full social, health, and unemployment insurance as per labor law.
• Training and mentorship by senior developers, if needed.
• Annual company trips, sick leave, maternity leave, and more.

Interview Process

1. Round 1: 30-minute to 1-hour technical test.
2. Round 2: Interview with our team.

How to Apply

Ready to join our journey? Send your CV, GitHub/LeetCode profiles, and a brief introduction to hr@saiko-software.com. Let’s build something amazing together at Saiko!

The post Software Developer (NodeJS) – Job Opportunity at Saiko appeared first on Saiko Software.

Write a function to find the longest common prefix string amongst an array of strings.
If there is no common prefix, return an empty string "".

Example 1:

Input: strs = ["flower","flow","flight"]
Output: "fl"

Example 2:

Input: strs = ["dog","racecar","car"]
Output: ""
Explanation: There is no common prefix among the input strings.

Solution

Brute force

This is an easy problem. First we will look at the brute force solutiton:
– Loop through the first string in the array.
– Loop through other strings in the array and compare the characters in the same position.
– if the characters are not matched –> break through the loop.
– if the characters are matched, add it to the result.

const solution1 = function(strs) {
    let result = "";
    let baseStr = strs[0];
    if (strs.length === 1) return baseStr;
    for (let i = 0; i < baseStr.length; i++) {
        let matched = true;
        for (let j = 1; j < strs.length; j++) {
            if (strs[j][i] !== baseStr[i]) {
                matched