Ahmad Fatih Al Fikri | Backend Engineer

Professional Experience

JATIS Mobile

Messaging solution - META Partner Indonesia

Backend Engineer | Coster Product ~ Omni Channel Solution

Feb 2024 – Present

Campaign Status Handler: Built concurrent message processor handling 1M+ daily WhatsApp status updates from Meta API using Go and RabbitMQ, enabling real-time campaign monitoring
CTWA Analytics Consumer: Engineered Click-to-WhatsApp analytics service processing large-scale customer interaction data through distributed Go workers and RabbitMQ queues
WhatsApp Flow API Gateway: Architected REST API gateway connecting external clients to Meta WhatsApp Flow features, with robust error handling and message queue integration
Push Notification Service: Developed FCM-integrated notification system with RabbitMQ consumers in Go, ensuring 99.9% delivery reliability for helpdesk alerts
Coster Sheet Platform: Led development of secure PII-compliant spreadsheet solution replacing Google Sheets, ensuring data sovereignty and consistency for campaign management

Backend Developer | Beranda Toko ~ WhatsApp based e-commerce

Authentication Microservice: Architected secure JWT-based auth service with role-based access control, supporting WhatsApp e-commerce platform with thousands of merchants

PASS3

Web3-powered ad tech solution for advertisers, Indonesia

Data Engineer

Jun 2023 – Nov 2023

Data Pipeline Modernization: Migrated legacy BigQuery ETL workflows to Airflow-orchestrated pipelines, achieving 40% faster processing and comprehensive monitoring
User Profile Builder: Engineered ML-powered pipeline generating 10-dimensional user profiles from behavioral data, improving ad targeting accuracy by 35%
Audience Segmentation System: Built automated segmentation pipeline processing 100K+ daily active users for retargeting campaigns with real-time updates

Software Engineer

Aug 2022 – Nov 2023

Self-Sovereign Identity (SSI): Contributed to Web3 identity research, developing decentralized SSO solutions and JavaScript SDK for blockchain-based authentication
High-Performance Profile API: Optimized user profile service achieving <10ms P99 latency through caching strategies and query optimization, serving 10K+ RPS

DOT Indonesia

Backend Engineer

Startup builder & IT Consultant

Jul 2021 – Jul 2022

Built .NET Core applications with blockchain smart contract integration and unified marketplace API aggregator consolidating multiple e-commerce platforms
Led technical interviews and mentored 5+ junior developers on backend architecture patterns and coding standards

Nest Academy

Technical Mentor

Feb 2022 – Apr 2022

Mentored cohort of 10 developers on NestJS framework, TypeScript best practices, and microservices architecture design patterns

Technical Skills

Programming Languages

Go Python TypeScript C# JavaScript SQL

Frameworks

NestJS .NET Core Next.js

Core Expertise

Backend Development System Design Data Engineering

Technologies & Tools

Data & Messaging

RabbitMQ PostgreSQL Redis MySQL SQL Server Elasticsearch

Data Processing

Airflow DBT Beam BigQuery

Additional Expertise

System Architecture API Development SDK Development Firebase Blockchain Integration Technology Research

Education

Alterra Academy

Advancing Career Program

Sep 2020 - Oct 2020

Intensive 8-week bootcamp focused on production-grade backend development, covering Go, microservices architecture, and cloud deployment practices.

PIKTI ITS

Diploma in Information Technology

Oct 2015 - Jul 2018

Three-year program covering software engineering fundamentals, database systems, and object-oriented programming with hands-on project experience.

Get in Touch

Let's Build Something Great

Looking for a backend engineer who can deliver scalable solutions?
Let's discuss how I can help with your next project.

Send Email Connect on LinkedIn

Or connect with me on:

Email GitHub