Fatkul Nur Koirudin

Fatkul Nur Koirudin

Software Engineer

Summary

Software Engineer since 2019, specialized in building high-traffic, transaction-intensive backend systems. Graduate of Informatics Engineering from Politeknik Elektronika Negeri Surabaya (PENS). Experienced in securities crowdfunding, fintech, cloud accounting, and ERP platforms; building APIs, managing AWS infrastructure, and migrating legacy systems. Focused on delivering the most ideal solutions — cost-effective, built with stable technologies, and perfectly aligned with every business context. Passionate about clean architecture, performance optimization, and system reliability.

Skills

Backend: PHP, Golang, Laravel, REST API, SQL, Livewire, Filament PHP

Frontend: HTML5, CSS3, Bootstrap, Tailwind CSS, JavaScript, Vue.js

Database & Cache: MySQL, MariaDB, PostgreSQL, SQLite, ClickHouse, Redis, Meilisearch

Cloud & Storage: AWS (EC2, Fargate, S3, SES, RDS, ElastiCache, Route 53, WAF), Alibaba Cloud (SAS), DigitalOcean, Cloudflare, S3-compatible storage

DevOps & Infrastructure: Linux (AlmaLinux, Debian, Ubuntu), Nginx, Apache, Docker, Git (Gitlab/Github), CI/CD (GitHub Actions), Metabase, Gotenberg

Security & Tools: Web Security Testing, OWASP, Vulnerability Assessment, Penetration Testing, Burp Suite (basic), Asynq, Sentry, Scrum, gRPC

Experience

Freelance Web Developer, Digital Marketer & Security Analyst

Freelance / Self-employed | Freelance

  • Built and managed dozens of high-traffic websites, including properties with Top-100–1000 global Alexa rankings
  • Owned end-to-end operations (domains, source code, Linux servers), with each website handling 100K–2M daily impressions, 200–20k concurrent users, and 2–20 TB monthly traffic
  • Achieved and maintained top search engine rankings through technical SEO and performance optimization without paid advertising
  • Conducted security testing and vulnerability assessments across managed web properties, applying OWASP principles and participating in bug bounty programs

Software Engineer

Zeed Mitra Pte. Ltd. | Full-time Permanent

  • Rebuilt legacy APIs into Golang-based services, improving system performance, scalability, and security
  • Developed and maintained production Golang and Laravel services, delivering new features and resolving critical issues in live environments
  • Implemented distributed background job processing using Asynq to handle asynchronous workloads
  • Integrated multiple WhatsApp Gateways and built multi-channel notifications (WhatsApp, Email, Discord, etc)
  • Improved system reliability and observability by implementing Sentry monitoring across production services
  • Managed AWS infrastructure (EC2, Fargate, S3, RDS (MySQL), Elasticache (Redis), Route 53, and WAF)

Senior Backend Developer

PT BUKUKU SOLUSI KREATIF | Full-time Permanent

  • Developed and maintained high-performance Laravel REST APIs supporting core business features
  • Built internal back-office systems using FilamentPHP & Livewire, improving operational efficiency
  • Designed and implemented an in-house WhatsApp Gateway with broadcast scheduling and internal system integration
  • Built automated data scraping pipelines (Puppeteer) to collect and store government tax rate data accurately
  • Integrated 10+ payment gateways (Midtrans, Xendit, Duitku, Cashlez, Espay, Faspay, etc) ensuring secure transactions
  • Implemented Google Play Billing & Apple Pay for in-app purchases
  • Designed system architecture & database schemas, and managed Linux servers (Nginx/Apache, MySQL, Redis, ClickHouse)

Software Programmer

PT JAVAN CIPTA SOLUSI | Internship

  • Developed features for academic information systems serving a leading Indonesian university with thousands of students
  • Built a job seeker portal application, improving recruitment and onboarding workflows for corporate clients

Education

The English Master

Bachelor of Informatics Engineering (S.Tr.Kom)

Certificates & Training

Open Source Projects

...and 20+ more open source projects on GitHub