HR.

Hey, I'm

Hadian Rahmat

Over 8 years, I've learned that great engineering is about building systems that survive chaos, leading teams that solve hard problems, and making decisions rooted in judgment. I'm a backend engineer at heart—architecting cloud-native systems in Go, Node.js, and PHP that handle millions of users. I've optimized databases that shaved seconds off response times, designed microservices that let teams move independently, and built APIs that scale. But I'm equally comfortable shipping complete solutions—writing responsive frontends, orchestrating DevOps, ensuring every piece works seamlessly. My foundation is backend depth; my flexibility is full-stack breadth.

In an evolving tech landscape, I practice AI-augmented development. I leverage Claude, ChatGPT, and Gemini as thinking partners—exploring architecture faster, reviewing code more thoroughly, prototyping ideas in minutes. But I remain the architect. I validate rigorously, question critically, and ship nothing that doesn't meet my standards. It's judgment-first, AI-enhanced—not the other way around.

What excites me most is impact through people and systems. I lead with technical credibility, whether managing engineering teams, establishing standards, or mentoring engineers toward mastery. I've contributed to meaningful missions: scaling systems for millions, driving digital transformation in government, and as an organizer at GDG Bandung, cultivating a thriving developer community where engineers learn new technologies, connect with peers, and grow their careers. As a Google Cloud Professional Developer, I've learned that great technology is built by great teams, not great individuals. I'm drawn to Senior Engineer, Tech Lead, or Engineering Manager roles where technical depth drives decisions and teams grow alongside technology.

View ATS CV ATS-ready Learn more about my experience

EXPERIENCE

Staffinc Group

Jakarta, Indonesia

Full Stack Engineer

Sep 2025 - Dec 2025 Freelance / Contract

Delivered full-stack solutions for enterprise clients as a contract engineer, building scalable applications using modern JavaScript frameworks and backend technologies.

  • Developed end-to-end features from database design to frontend implementation, ensuring seamless user experience and maintainable code architecture.
  • Collaborated with cross-functional teams to translate business requirements into technical solutions, maintaining alignment between product vision and implementation.
  • Applied industry best practices in code quality, security standards, and performance optimization throughout the development lifecycle.

Badan Kepagawaian Daerah Provinsi Jawa Barat

Bandung, Indonesia

Tenaga Ahli - Fullstack Engineer

Oct 2024 - Jun 2025 Full-time

Drove digital transformation in public sector as Technical Expert, architecting and developing critical civil service applications serving employees across West Java province.

  • Designed and implemented full-stack applications for government operations, modernizing legacy systems and improving service delivery for civil servants.
  • Ensured compliance with government security standards and data protection regulations while maintaining high system reliability and availability.
  • Bridged technical and non-technical stakeholders, translating complex technical concepts into actionable insights for government officials.

GITS Indonesia

Jun 2018 - Sep 2024

Bandung, Indonesia

Engineering Manager

Sep 2022 - Sep 2024 Full-time

Led engineering team through successful delivery of enterprise projects, establishing technical standards and development processes that improved team velocity and product quality.

  • Built and managed high-performing engineering team, implementing Agile practices and establishing clear development workflows that enabled consistent project delivery.
  • Drove adoption of CI/CD pipelines and DevOps practices, transforming deployment process from manual releases to automated continuous delivery.
  • Collaborated with product management, design, and QA to align technical execution with business objectives, ensuring seamless cross-functional project delivery.
  • Championed technical innovation by evaluating and introducing modern technologies and frameworks that enhanced product capabilities and developer productivity.
  • Mentored engineers through code reviews, architectural discussions, and career development planning, fostering culture of technical excellence and continuous learning.

Chapter Lead Backend

Mar 2021 - Sep 2022 Full-time

Led backend engineering chapter, establishing architectural standards and technical practices that shaped backend development across multiple product teams.

  • Mentored backend engineers from junior to senior levels, conducting technical reviews and career development sessions that accelerated team capability growth.
  • Established backend architectural standards and coding conventions, ensuring consistency and quality across microservices and API implementations.
  • Led backend architecture for complex enterprise projects, designing scalable solutions that met performance requirements and client expectations.
  • Implemented code quality initiatives including structured code review processes, refactoring strategies, and technical documentation standards that improved codebase maintainability.

Backend Engineer

Jun 2018 - Mar 2021 Full-time

Architected and developed backend systems serving production traffic, building scalable microservices and RESTful APIs using Go, Node.js, and PHP frameworks.

  • Designed backend architectures supporting high-concurrency workloads, implementing caching strategies and load balancing that maintained performance under peak traffic.
  • Optimized database performance through query analysis, strategic indexing, and schema refinements, achieving significant improvements in response times and throughput.
  • Implemented comprehensive security measures including authentication systems, authorization frameworks, and data encryption, ensuring compliance with security standards.
  • Developed critical backend features and API endpoints that enabled new product capabilities and enhanced user experience across multiple client applications.
  • Created well-documented RESTful APIs with clear contracts, facilitating smooth integration for frontend teams and external service providers.
  • Maintained production stability through proactive monitoring, debugging complex issues, and implementing fixes that minimized downtime and user impact.

PT Jaya Data Informatika

Bandung, Indonesia

Web Developer

Aug 2017 - Jun 2018 Full-time

Built full-stack web applications for client projects using Laravel and CodeIgniter, developing end-to-end features from database design to frontend interfaces.

  • Delivered complete web solutions for business clients, handling requirements gathering, technical implementation, and deployment to production environments.
  • Developed proficiency in MVC architecture patterns and PHP frameworks, establishing foundation for backend engineering expertise.

EDUCATION

Widyatama University

2018 - 2022

Bandung, West Java, Indonesia

  • Information System
  • In my studies, I gained a strong foundation in computer science, programming, and systems analysis, with a focus on business applications. I also developed my communication and teamwork skills through group projects and internships.

SMK Negeri 4 Bandung

2014 - 2017

Bandung, West Java, Indonesia

  • Software Engineering
  • During my time at SMK Negeri 4 Bandung, I honed my skills in software development by completing numerous projects, including Bandung SmartBus. I gained proficiency in programming languages such as Java, PHP, and C++, and I have a strong understanding of object-oriented programming principles. Additionally, I am experienced in using version control systems like Git and have contributed to open-source projects on GitHub. My coursework also covered database design, web development, and software testing methodologies.

TECHNOLOGY & EXPERTISE

Backend Engineering & Languages

Building scalable systems that handle production workloads.

Backend Languages

  • Go (Golang)
    High-concurrency microservices and distributed systems. Production experience building APIs that scale horizontally.
    Microservices Concurrency Distributed Systems High Performance
  • Node.js Ecosystem
    Full-featured backends with Express.js, AdonisJS for enterprise applications, and Bun with ElysiaJS for modern runtimes.
    Express.js AdonisJS Bun ElysiaJS TypeScript
  • PHP
    Enterprise applications with Laravel, lightweight APIs with Lumen, and legacy system maintenance with CodeIgniter.
    Laravel Lumen CodeIgniter PHP 8+

System Architecture & Databases

  • Architecture Patterns
    Microservices architecture, RESTful API design, GraphQL implementations, and event-driven systems.
    Microservices RESTful APIs GraphQL Event-Driven Architecture Domain-Driven Design
  • Databases & Caching
    SQL optimization, schema design, and caching strategies for production systems.
    MySQL PostgreSQL Redis MongoDB Query Optimization Database Migration

Cloud & DevOps

Production-ready infrastructure and automated deployment pipelines.

Cloud Platforms

  • Google Cloud Platform
    Certified Professional Developer. Production experience with Compute Engine, Cloud Run, GKE, Cloud Functions, and Cloud SQL.
    GCP Compute Engine Cloud Run GKE Cloud Functions Cloud SQL Cloud Storage
  • Multi-Cloud
    AWS (EC2, RDS, Lambda, S3) and Microsoft Azure for cross-platform deployments.
    AWS Microsoft Azure Multi-Cloud Architecture

DevOps & Automation

  • Containerization
    Docker containerization and Kubernetes orchestration for scalable deployments.
    Docker Kubernetes GKE Container Orchestration Helm
  • CI/CD Pipelines
    Automated deployment workflows with Jenkins, GitHub Actions, and GitLab CI.
    Jenkins GitHub Actions GitLab CI Automated Testing Deployment Automation

Frontend & Full-Stack

Modern frontend frameworks for complete full-stack delivery.

Frontend Technologies

  • JavaScript Frameworks
    React for interactive UIs, Vue.js for progressive applications, and Astro for content-focused sites.
    React Vue.js Astro Next.js Vite
  • Styling & Design
    Tailwind CSS for utility-first styling and responsive design implementation.
    Tailwind CSS CSS3 HTML5 Responsive Design

AI-Augmented Development

Strategic AI integration for architecture exploration and code optimization.

AI Development Tools

  • AI Assistants
    Claude for system architecture and complex reasoning, ChatGPT for rapid prototyping, Gemini for Google ecosystem integration.
    Claude ChatGPT Gemini AI-Assisted Development
  • AI-Powered IDEs
    GitHub Copilot for intelligent code completion, Cursor for AI-native workflows, Gemini Code Assist for GCP tasks.
    GitHub Copilot Cursor Gemini Code Assist VS Code

Engineering Leadership & Practices

Leading teams, mentoring engineers, and driving technical excellence.

Technical Leadership

  • Team & Project Management
    Leading cross-functional teams, technical roadmap planning, and chapter leadership for backend engineering standards.
    Team Leadership Technical Roadmaps Cross-Functional Collaboration Chapter Lead
  • Mentorship & Growth
    Career development mentorship, technical coaching, and building high-performing engineering teams.
    Mentorship Career Development Technical Coaching Knowledge Sharing

Process & Methodology

  • Agile Practices
    Agile/Scrum implementation, sprint planning, and OKR/KPI-driven team alignment.
    Agile Scrum OKRs KPIs Sprint Planning Retrospectives
  • Stakeholder Collaboration
    Product collaboration, executive communication, and technical-to-business translation.
    Stakeholder Management Product Collaboration Executive Communication Technical Writing

ORGANIZATION

Organizer GDG Bandung

2022 - Present

Bandung, West Java, Indonesia

  • GDG Bandung is a technology community dedicated to developing the technology ecosystem in Bandung, West Java, Indonesia. GDG stands for Google Developer Group, which is a global network of developer communities interested in Google technologies.

Organizer BandungDev

2023 - Present

Bandung, West Java, Indonesia

  • BandungDev is a tech community for software developers, programmers, engineers in Bandung area and around it. Therefore each event or discussion would be either combining different topics or focusing on just one tech in particular.

GDG On Campus Lead Widyatama

2020 - 2021

Bandung, West Java, Indonesia

  • GDG (Google Developer Group) on Campus Widyatama University is a student community focused on technology development, programming, and innovation. Members of GDG on Campus Widyatama University engage in various activities such as training, workshops, seminars, and technology projects aimed at enhancing understanding and skills in software development, artificial intelligence, application development, and other cutting-edge technologies. This community collaborates with Google to provide access to resources, mentors, and opportunities to contribute to relevant technology projects. GDG on Campus Widyatama University encourages collaboration, learning, and creativity among students with interests in the technology field.