Freelance Android and Kotlin developer for B2B product work

I build Android features with Kotlin, integrate APIs and SDKs, and prepare releases on an existing app. I first review the code, affected flows and validation needs to agree a manageable delivery.

Discuss Android work See app development

Android/Kotlin apps and SDKs.
Product features, architecture and API integration.
Technical QA and release criteria.

Experience with field Android apps and existing systems

For MaderaPlus +DERA I diagnosed an Android Java app with offline sync, backend and a legacy website. The case documents the diagnostic; Kotlin/KMP are evolution recommendations.

Review the case and delivered scope

Diagnostic staging with anonymised data.

203 documented backend/API calls.

115 issues reviewed and 23 prioritised actions.

Tell me about the project

Tell me what needs to be resolved.

Objective, current state and timing are enough to assess fit and suggest a concrete starting point.

A human reply, normally within one business day. No automatic addition to marketing lists.

Service enquiry for companies, agencies and consultancies; this is not a job opening.

What context are you writing from?

Agency, consultancy or studioCompany or SMEProduct teamOther context

Name

Work email

What needs to be resolved

A few lines about the project are enough.

Add more informationCompany, budget and timing, if you know them.

Company or studio

Project type

Working model

Indicative budget

Timing

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Usual reply within one business day.

Where specialist support helps

This page covers focused Android delivery; recurring maintenance has a separate offer.

Complex mobile feature

Implementation in an existing codebase, architecture, offline states, permissions or sensitive product flows.

Release under pressure

Technical QA, regression control and publication preparation when the cost of error is high.

SDKs and integrations

APIs, examples, contracts and integration documentation that reduce partner support.

What is delivered

A mobile intervention that product, agency and engineering teams can validate and continue.

Implementation

Features, fixes, backend integration or adaptation to the existing application architecture.

Stabilization

Tests, contract review, regression control and closure of release risks.

Continuity

Decisions, tests, pending items and publication criteria documented for the next stage.

How we scope an Android intervention

The initial review separates the requested change from risks in the existing app.

Codebase and dependencies

Android version, modules, SDKs and affected services. We establish what can be built and tested before committing.

Change validation

Main flow, permissions, errors and offline conditions where included in scope.

Release and handover

A verifiable build, change notes and publication steps. Store approval depends on its review.

Common Questions

The minimum worth clarifying before opening a collaboration.

Can you join an Android app you did not build?+

Yes. I first need a reproducible build, repository access, product context and someone who can validate the delivery.

Do you also cover Kotlin Multiplatform?+

Yes, when shared logic or an SDK creates a real product advantage rather than adding architecture for its own sake.

Is this the maintenance service?+

No. This offer is for focused specialist delivery. Recurring fixes and releases are covered on the Android app maintenance page.

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