AOSP & Embedded Android Engineer
Custom Android firmware for field-deployed devices.
I build custom Android firmware for companies that need more control than stock Android provides. Security hardening, device provisioning, SystemUI customization, legacy kernel support, and build automation.
- 8 years AOSP experience, 5 years freelance.
- Worked across Qualcomm, MediaTek, Unisoc, Amlogic, and Exynos platforms.
- Security hardening, MDM/kiosk systems, and legacy maintenance.
I reply within 24h.
Core focus areas
- Security hardening and attack surface reduction.
- Custom device provisioning and management systems.
- SystemUI and framework modifications for specialized hardware.
- Legacy platform maintenance and kernel backports.
- Treble-compliant system customization.
Platform experience: Qualcomm, MediaTek, Unisoc, Amlogic, Exynos. Comfortable working with vendor BSPs and using Treble/GSIs when appropriate.
What you get
Fixed price quotes for defined work. I can work with modest budgets and provide clear deliverables, patches, and documentation your team can use.
Where I fit best
Small OEMs and hardware teams who need focused Android platform work without a full-time hire.
Businesses deploying Android devices who need proper device lockdown, custom provisioning, or fleet management beyond what standard MDM offers.
Case studies
Recent work, anonymized
Replacing enterprise MDM with custom device management
Eliminated recurring MDM costs and limitations by building custom firmware with built in management, eSIM provisioning, and total device lockdown.
Legacy Qualcomm platform bringup
Backported kernel patches to a 3.10 kernel stack and modernized the device sources for Android 15
PTT radio device: Custom management system and framework patches
Developed a privileged system app for remote lockdown and management, patched MediaTek radio images, and modified framework code to enable deep device control.
Custom OS bringup on Amlogic STB
Brought up a custom OS on Amlogic hardware, decompiled and reimplemented proprietary IR remote drivers from DroidLogic.
Hardened Android OS with custom provisioning and app ecosystem
Developed a custom hardened OS with encrypted provisioning, custom app store, secure updater infrastructure, and SystemUI modifications for secure deployments.
Gaming device OS with controller UI and hardware controls
Developed a gaming focused OS with custom setup flow, controller friendly UI modifications, and platform controls for fans, performance profiles, and RGB lighting.
Client reviews
What clients say
Understood the task and delivered within a timely manner, it was good working with them. They easily overcame the couple problems I ran into and made sure I was satisfied.
$100-$200
Price
11 days
Duration
Services
How I can help
Custom ROM Development Service
AOSP bring-up, platform customization, and production hardening for embedded Android devices.
Device Management / Kiosk / Provisioning
Provisioning flows, policy enforcement, and device-side tooling that fits your operations.
Legacy Devices & Maintenance
Patch backports, stability work, and realistic fixes for older stacks.
SystemUI & Features
SystemUI changes, custom panels, and integrations with quirky hardware.
Security Hardening & SELinux
Threat-driven hardening, SELinux policy cleanup, and long-term mitigation plans.
If you need help with a device in production, start here.
I work on defined problems with clear deliverables and timelines. You get documentation that lets your team maintain the work after the project ends.
I reply within 24h.