Fajar Sujito
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Fajar Sujito

Fullstack Developer & Engineering Leader | Building Web, Mobile, and Cloud Products with React, Next.js, React Native, and AWS

link LinkedIn
10+ Years Experience
1K+ Followers
500+ Connections
13+ Projects

About Me

Fullstack developer combining hands-on delivery with engineering leadership

Full-stack developer with 10+ years of experience building and scaling web, mobile, backend, and cloud systems. I have delivered products across financial and enterprise platforms using React, Next.js, React Native, Laravel, Node.js, Golang, and AWS.

I use AI-assisted development workflows to accelerate discovery, implementation, debugging, testing, documentation, and code review while maintaining strong engineering judgment and quality control. I also bring proven engineering leadership, guiding multidisciplinary teams and shaping reliable architecture.

Passionate About

  • check_circle Building high-performance engineering teams
  • check_circle End-to-end product development across React, Next.js, React Native, and backend services using PHP/Laravel, Node.js, Golang, and Python
  • check_circle AI-assisted engineering workflows for faster, higher-quality software delivery
  • check_circle System continuity, security & compliance (BCP, failover, monitoring)
  • check_circle Translating business goals into measurable technology outcomes

Tech Stack

AWS AI-Assisted Development LLM Workflows Laravel React Next.js Node.js PHP Python Docker Jenkins Redis MySQL PostgreSQL Golang Microservices React Native ECS EC2

Languages

Indonesian Professional
English Limited Working

Work Experience

Hands-on full-stack development and engineering leadership experience

Engineering Lead

PT Surya Anugrah Mulya

Oct 2024 – Present
  • Led engineering roadmap and technical product direction
  • Mentored engineers and improved development standards
  • Designed scalable infrastructure, monitoring, and failover
  • Improved delivery planning and system maintainability

AWS · Cloudflare · Laravel · Node.js · Go · RabbitMQ · ELK · FIX API

Full Stack Developer

Independent Product Builder

Jan 2023 – Jan 2026
  • Owned frontend architecture and product implementation
  • Designed reusable UI patterns and component structures
  • Improved responsiveness, SEO, accessibility, and UX
  • Integrated authentication, analytics, and payment APIs

React · Next.js · TypeScript · Tailwind CSS · REST API · AWS

Engineering Lead

MIFX

May 2022 – Dec 2023
  • Developed web features for a financial trading platform
  • Improved user experience and application performance
  • Implemented scalable APIs and frontend integrations
  • Initiated event-driven microservices, Saga, and CQRS

AWS · Laravel · REST API · RabbitMQ · API Gateway · Socket.IO

Engineering Lead

DXTR

Jul 2018 – Apr 2022
  • Led a cross-functional engineering team of 15
  • Coordinated vendors and Agile delivery for SRC
  • Reviewed code quality across internal and vendor teams
  • Scaled microservices and event-driven systems on AWS

Angular · React · Laravel · Node.js · AWS · Docker · CI/CD

Full Stack Developer

Looq Creative

Apr 2022 – Mar 2023
  • Owned frontend delivery for client and product websites
  • Built end-to-end features and backend API integrations
  • Improved architecture, reliability, and delivery speed
  • Coordinated delivery across multiple client priorities

Laravel · JavaScript · React · MySQL

Full Stack Developer

PT Satuu Teknologi Utama

Apr 2022 – Mar 2023
  • Owned frontend-heavy application delivery and user flows
  • Built APIs, authentication, and operational dashboards
  • Collaborated across product and engineering functions
  • Improved implementation patterns and maintainability

Laravel · React · MySQL · Redis · AWS

Featured Projects

Selected projects from a portfolio of high-scale enterprise solutions

Sampoerna Retail Community (SRC)

Scale: Enterprise

A massive ecosystem of 7 integrated applications supporting Indonesia's retail landscape. Built with a robust microservices architecture on AWS using Laravel, Angular, and React Native.

AWS Microservices React Native
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M2 (Valutrades)

Forex, CFDs and commodities trading platform prioritizing transparency and low-latency execution.

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MIFX

Financial trading platform with scalable APIs, real-time notifications, and integrated web experiences for forex and commodity products.

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AMB Megatrend

A high-performance liquidity provider platform for financial trading operations.

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ERP Khasanahsari

Comprehensive Enterprise Resource Planning system tailored for specialized bakery production.

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Lumbung Media

Online media storage and management for Universitas Negeri Semarang.

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QuickMath

Online learning platform featuring tutor consultations, private lessons, a math solver, and an AI learning assistant.

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Sobat Saham

AI-assisted IDX stock analysis platform helping retail investors make disciplined and measurable investment decisions.

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Alzubara

Recruitment and career platform connecting Indonesian workers with safe, legal, and professional overseas opportunities.

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ONEPOGI

Integrated membership portal providing clinical, educational, professional protection, and event access for POGI members.

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EMOP POGI

Digital platform supporting POGI's professional organization and member services.

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Education

Universitas Negeri Semarang

Bachelor's Degree, Computer Science

2013 – 2017 · Graduated Cumlaude

Hiroshima University

Short Course — IDEC

2016 · Hiroshima, Japan

Continuous Learning

Test Automation University, Cisco, Dicoding, freeCodeCamp

Certifications

database
security

2021 Beginner's Guide to Cyber Security

View Credential · UC-07886a5c-6404-4d33-b3a8-149fb3b69b26
cloud
deployed_code
architecture

AWS Certified Solutions Architect Associate: Complete Course

View Credential · UC-9063dd58-446a-445d-a929-640b878d57e8
terminal

Build Laravel Applications Fast Using Blueprint

View Credential · UC-e80fca89-1fca-4e1b-a239-08f9c4eb6138
architecture

AWS Services for Solutions Architect Associate [2021]

View Credential · UC-d6bd0959-450d-4370-b721-28be2e3cc795
security

Introduction to Information Security

View Credential · PKMI1111210633
deployed_code

Getting Started with Microservices with Istio and IBM Cloud Kubernetes Service

Credly · b3d117c9-e592-48a0-ac8c-49a4a5e02816 Cognitive Class · f6ee51078ec5461e97b712457d4a9ae4
api

API Testing in JavaScript

View Credential · 242e848a
cloud

Oracle Cloud Infrastructure Foundations 2021 Associate

View Credential · 74FC7A2D6EB468B96E1C4D411B3E2D3C01DD76BDADACF099B80DA912370B9440
shopping_cart

NodeJs: Build The Complete E-Commerce Web API [2021]

View Credential · UC-6f176c46-e685-4e53-b1d4-0723c7461483
web

React JS - Complete Guide for Frontend Web Development [2021]

View Credential · UC-132bc6fb-39f8-4426-92b0-613225a6dd58
account_tree

Software Architecture and Clean Code Design in OOP

View Credential · UC-05db6418-d664-4c6e-b127-8424283c553c
shield

Pentesting and Securing Web Applications (Ethical Hacking)

View Credential · UC-185040b9-07c9-4526-9895-3474bbae3099
verified_user
security
dns

Research & Publications

An Analysis of User Interface and User Experience Using System Usability Scale and GOMS Method

Journal of Advances In Information Systems and Technology · Oct 2019

Study examining UI/UX of Lumbung Media using SUS questionnaire and GOMS analysis. Revealed significant improvement in searching and production processes.

Read Publication open_in_new

Applying an MVC Framework for The System Development Life Cycle with Waterfall Model Extended

Journal of Physics: Conference Series (JPCS) · Jan 2017

Extension of the waterfall model using MVC architectural pattern for software development, improving performance in security, validation, database access, and routing.

Read Publication open_in_new

Honors & Awards

🏆
Best Graduate

Computer Science, UNNES 2017

🎓
Graduated Cumlaude

UNNES, Dec 2017

🎤
Keynote Speaker

Mobile Learning Symposium 2017

🌏
International Symposium

Hiroshima University, Japan 2016

☢️
Phoenix Leader

Renaissance from Radiation Disaster, JP

👨‍🏫
Training Speaker

Learning Media for Teachers 2017

Let's build scalable products together.

Open to AI-assisted full-stack development, engineering leadership, consulting, and high-impact product collaborations.

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