Elsen Yacub

A Backend focused Software Engineer with various experiences, from backend to frontend to infrastructure. With 5+ years of experience working in multiple big tech companies such as TikTok Tokopedia, I have contributed in building robust apps and services, contributed in cost saving initiatives, and also improving multiple teams efficiency by creating impactful automations tools.

Experiences

April 2025 - Present

Synapsis is an exclusive IT consultant for one of the BIG 5 mining contractor in Indonesia.

As a Backend Engineer in Synapsis, I am responsible in developing, maintaining, and refactoring Backend and IOT services of Synapsis products.

March 2022 - August 2024

TikTok Shop | Tokopedia is one of the biggest e-commerce in Indonesia, having more than 140 Millions monthly active users.

As a Backend Engineer in TikTok Tokpedia, I am responsible in maintaining day to day activities of Tokopedia's Database and Redis, and also responsible in developing automations to improve efficiency of Database and Redis team.

March 2021 - March 2022

Itemku is the biggest digital goods focused marketplace in Indonesia, having more than 10 Millions monthly visitors.

As a Software Engineer in Itemku, I am responsible in developing the Frontend, Backend, and Test automations for Itemku.com web and seller site.

February 2020 - March 2021

Astra Graphia Information Technology (AGIT) is a software development company under one of the biggest conglomerate group in Indonesia (Astra)

As a Frontend Intern in AGIT, I am responsible in developing the Frontend of the new modern apps for a client and also maintaining the old existing apps.

Skills

Backend

Golang

Java

PHP

Node.js

Spring Boot

GoFiber

PHP Slim

Express.js

Kafka

Redis

HTTP

GRPC

MQTT

Websocket

Database

PostgreSQL

MySQL

QuestDB

MongoDB

Supabase

Frontend

Next.js

React

JavaScript

TypeScript

Tailwind CSS

Angular

Redux

Websocket

Shadcn/ui

Material UI

Bootstrap

CI/CD

Ansible

Jenkins

Git

Docker

Vercel

Portainer

Other Tools

DBeaver

PgAdmin

Postman

Bruno

Grafana

New Relic

Upstash

Cypress

Jest