Senior Android Engineer / Indonesia
Building mobile products people depend on.
I’m Abraham Lay — an Android engineer with 7+ years across payments, fintech, and EdTech. I also build small tools I can run myself.
Currently based in Jakarta
Open to remote & international teams
00 — Perspective
I work at the intersection of product, engineering, and trust.
A payment flow has to feel safe. A credit app has to be clear. A learning product has to make people want to return.
That’s the kind of software I enjoy building: useful products with real users, real constraints, and consequences beyond the screen.
01 — Experience
A career shaped by real users and real constraints.
LinkAja
Senior Android Engineer
Worked on Android products that helped people pay, sell digital goods, and manage money through one of Indonesia’s homegrown e-wallets.
My work covered Mitra LinkAja for agents and the consumer e-wallet. The challenge was making financial actions clear, reliable, and trustworthy — not simply shipping another screen.
Kotlin · Jetpack Compose · Coroutines · Modularization
Cakap
Android Engineer
Built Android features for a live language-learning platform connecting Indonesian learners with teachers.
Worked across learning, booking, and learner-facing flows — software sitting between a learner’s intention and their decision to show up again tomorrow.
Kotlin · MVVM · Room · Realtime
MyHomeCredit
Android Engineer
Developed mobile experiences for financing, loan management, and customer payments.
Financial products need more than technical correctness. They need clear communication, especially for users making important financial decisions for the first time.
Kotlin · Java · REST APIs · Firebase
02 — Selected work
Some projects served many users. Some removed one small daily friction.
01
SuaraBisnis
Voice-first business assistant
Exploring how voice and AI can make business information easier to access for Indonesian UMKM owners.
Next.js · Firebase · AI workflows
02
Inventory App
Self-hosted retail system
A practical inventory tool for a small grocery shop, designed to stay portable and run on infrastructure I control.
Web · Podman · Linux · Nginx
03
Excel Wizard
Retail data tool
A lightweight workflow for turning retail spreadsheets into useful data without building another enterprise platform.
Streamlit · Python · Data workflows
04
Textoaster
Personal news radar
An Android experiment in collecting, filtering, and reading news without another noisy feed.
Android · Kotlin · APIs
03 — Toolkit
Tools are useful. Judgment is the actual craft.
Kotlin · Java · Jetpack Compose · Coroutines · Room · KMP
Clean Architecture · MVVM · MVP · Modularization
Payments · E-wallets · Fintech · Credit · EdTech
Next.js · REST APIs · Firebase · Linux · Podman · Nginx
04 — Beyond the code
My long-term product roadmap is a small farm.
A few chickens, a vegetable patch, maybe a tiny warung for the neighbors. Until then, I build useful things, learn how systems work, and try to leave every project easier to understand than I found it.
05 — Let’s talk
Have a product that needs thoughtful mobile engineering?
If you’re building something useful and need an engineer who cares about both the product and the system behind it, I’d like to hear about it.