r rtsketo

Android-first mobile platform engineer

Reusable mobile infrastructure, built with product pressure in mind.

I design and ship Android platform foundations: API-response caching, image loading, UI systems, screen/state scaffolding, release tooling, and integration layers that help apps move faster without becoming fragile.

View selected work GitHub profile

Public-safe summary: reusable Android platform infrastructure, app-delivery support, shared UI foundations, caching layers, and developer tooling.

Selected professional work

Platform work that should not be flattened into “Android apps”.

These are capability-level summaries: specific enough to show engineering depth, abstract enough to stay clear of private implementation boundaries.

01

API-response cache/proxy layer

Designed and evolved a reusable Android cache/proxy mechanism for API responses, including request coalescing, refresh modes, memory and persistent storage, and observer-friendly cached delivery.

  • Shared platform code, not one-off screen logic.
  • Evidence-backed implementation history from the pre-agent era.
  • Public wording focuses on behavior and engineering responsibility.
02

From-scratch image caching/loading

Implemented and evolved a reusable Android image caching and loading layer from scratch, covering local storage, expiry and eviction behavior, decoding and resizing, placeholders, and cross-app consumption.

  • Preserved as a first-class infrastructure claim.
  • Described as evolved/co-maintained where later maintenance exists.
  • Stays focused on reusable client-side storage and media infrastructure.
03

UI and design-system infrastructure

Built reusable Android UI and design foundations across branded components, programmatic layout helpers, visual utilities, theme behavior, and list composition.

  • Practical abstractions for repeated app surfaces.
  • Focused on consistency, speed, and downstream maintainability.
  • Suited for portfolio wording without exposing private product screens.
04

Developer and release tooling

Supported mobile delivery through dependency/version management, build-system automation, configuration integration, release-readiness workflows, and review tooling.

  • Connects engineering quality with operational delivery.
  • Keeps source-of-truth verification central.
  • Public wording stays capability-based, not company-specific.

Public personal projects

Older and current public work, separated by readiness.

Public GitHub projects are linked when safe. Legacy projects are labelled as archival when their old toolchains need compatibility work.

Kotlin / Android

SakuraStats

Archival Clash Royale companion/statistics Android project. Strong older public Android footprint; current build claims remain intentionally cautious.

Java / Text processing

FakeNewsDetection

Older Java text-processing thesis project. Useful as pre-agent experimentation evidence, with methodology claims kept conservative.

Kotlin / Android

Repository-Listing

Early Android sample that supports Kotlin/Android breadth and has compatible legacy-toolchain build validation.

C# / Utility

HashPDF

Recent public Windows utility candidate with release and installer structure. Kept separate from pre-agent evidence.

Python / Utility

Guit2Key

Small personal utility project connecting technical curiosity with current music practice.

Timeline

Year-level evidence, without exposing private internals.

2018-2019

Early public project breadth

Kotlin, Java, Android, PHP, and game/utility experiments before modern AI coding agents.

2020 onward

Reusable Android platform infrastructure

Source-backed professional work across caching/proxying, UI foundations, state, network, and delivery tooling.

2021 onward

Image caching/loading foundation

From-scratch reusable image cache/loading implementation, later evolved and maintained with care around claim scope.

Current

Verification-first engineering

Repository evidence, source-of-truth checks, review automation, and practical AI-assisted engineering workflows.

Contact

Want the short version?

Android-first engineer with strong reusable-platform instincts, careful evidence boundaries, and a preference for technical accuracy over polished vagueness.

GitHub @rtsketo Read work summary