Annas Surdyanto — Software Engineer

Summary

Software engineer turned technical leader with a track record of continuously expanding scope — from Android development in 2019, to iOS and backend engineering, to full-stack ownership of Go and Next.js/React systems since 2023. Currently leads architecture and technical direction for the mobile team at SawitPro, while independently founding, architecting, and operating JagoCatat end‑to‑end as a solo engineer — spanning backend, frontend, infrastructure, and deployment. Comfortable leading across platforms and stacks, with hands‑on depth in Kotlin, Swift, Go, and JavaScript/TypeScript, and a habit of picking up new technical domains as needed.

Skills

Experience

Digital SawitPro Apr 2026 – Present

Principal Software Engineer / Architect (Team Lead)

Jakarta, Indonesia

Lead system design and technical direction for the Android platform, defining modularized architecture standards adopted across the mobile team.
Mentor and guide mobile engineers on architecture decisions, code quality, and best practices, acting as the technical reference point for the team.
Drive cross-functional product development decisions, partnering with product and backend teams to scope and design new features.
Contribute to Odoo implementation (initiated December 2025) to support internal business process digitization.

Digital SawitPro May 2023 – Mar 2026

Senior Android Engineer (Team Lead)

Jakarta, Indonesia

Led mobile engineers in designing and implementing modularized Android architecture using Hilt, Room, Navigation Component, Work Manager, Kotlin Coroutine, Firebase, Maps, and Retrofit — a leadership role carried out from day one, ahead of formal promotion to Principal Software Engineer.
Contributed to iOS development using SwiftUI, building two years of cross-platform engineering experience alongside the Android leadership role.

Vivere Group Apr 2021 – Apr 2023

Mobile Application Engineer (Android & iOS)

South Tangerang, Indonesia

Built end-to-end Android and iOS apps using Kotlin Multiplatform Mobile, Hilt, Jetpack Compose, SwiftUI, SQLDelight, Kotlin Coroutine, Firebase, Maps, and Ktor.

Pamulang University Sep 2015 – 2023

Lecturer

South Tangerang, Indonesia

Taught, designed, and developed content and curriculum for English subjects, while also contributing as a WordPress engineer for university web platforms.

Jago Catat Jun 2026 – Present

Owner & Solo Engineer

Tangerang, Indonesia

Founded and independently built a SaaS product end-to-end — owning product design, system architecture, backend and frontend development, and deployment.
Built the core platform with Golang and React, integrating the Official WhatsApp Business API (WABA) to power the product's core workflows.
Single-handedly manage the full lifecycle: product strategy, engineering, infrastructure, and deployment, with no external engineering support.

English Grammar Expert May 2019 – Present

Founder & Android Developer

Tangerang, Indonesia

Founded and built the app architecture using Hilt, MVVM, Room, and Data Binding, with Google Play Billing integration for subscription monetization.

Quranku Dec 2019 – Present

Founder & Android Developer

Tangerang, Indonesia

Founded and developed the app in Kotlin using Hilt, Room, Jetpack Compose, ExoPlayer, and YouTube IFrame integration.

Apex Nusantara Sep 2024 – Present

Full Stack Engineer (Client Project)

Tangerang, Indonesia

Built and continue to maintain an end-to-end client website and CMS with Golang (backend) and Next.js/TypeScript (frontend), deployed via Docker and Portainer on a Linux VPS, with CI/CD set up to streamline deployment.

AI Projects

Ongoing exploration of on-device and local LLM inference, including object detection pipelines with TensorFlow Lite (MobileNet, EfficientDet, YOLOv9, published), on-device LLM integration on Android via MediaPipe GenAI (Gemma 3), server-side inference experiments with Node.js, and local model testing through Ollama and llama.cpp — reflecting a continued interest in applied AI/ML alongside core mobile and full-stack work.

Education

University of Muhammadiyah Prof. Dr. Hamka

Master's Degree, English Education

Sep 2012 – Jun 2015 · Jakarta

University of Muhammadiyah Prof. Dr. Hamka

Bachelor's Degree, English Education

Sep 2007 – Dec 2011 · Jakarta

Certificates

Awards

Pengembangan Modul Mata Kuliah Critical Reading dengan Pendekatan Content and Language Integrated Learning (CLIL)

The Ministry of Research, Technology and Higher Education of the Republic of Indonesia · 2018–2019

Publications

Pagination in Kotlin Multiplatform Mobile — Better Programming
PDF Export Feature in Android: Simple iText Tips — Better Programming
Kotlin Multiplatform Mobile: The Definitive Cross-platform Bridge — Better Programming

Open Source

The-Movies

Clean Architecture Kotlin Multiplatform Mobile (KMM) with Android Instrument Test and Unit Test.

Kotlin 23 stars 4 forks

Pdf-Export

Sample project of PDF export in Android — companion code for the Better Programming article.

Kotlin 7 stars 2 forks