3Core Systems , Inc · Miami, FL

Salary
Posted
Jul 16, 2026
Location
Miami, FL
Last confirmed open
Jul 21, 2026

What this job asks for AI summary

A contract role focused on building and maintaining native Android (Kotlin) and iOS (Swift) mobile applications, as well as hybrid cross-platform solutions. The engineer leads architectural decisions, conducts code reviews, handles security and performance optimization, and mentors junior developers. It suits an experienced mobile engineer comfortable taking requirements through to delivery within Agile teams, ideally with some background in the cruise or travel industry.

Senior level · 5+ years · Miami-Fort Lauderdale-Pompano Beach, FL · Contract

Must have (20)
Kotlin · 5+ yrsAndroid StudioJava · 5+ yrsSwift · 5+ yrsXcodeObjective-CJetpack ComposeSwiftUIMVVM, Mvp or Clean Architecture · 5+ yrsDependency InjectionReact Native, Flutter or Xamarin · 5+ yrsREST · 5+ yrsGraphQLOAuthJWTFirebase, Google Analytics or Mixpanel · 5+ yrsHTML5CSS3TypeScript or JavaScriptAgile · 5+ yrs
Nice to have (2)
AWS, Azure or GCPDagger, Hilt or Swinject

“or” means any one of them counts — you don't need all of them.

We read this from the posting text with AI. Skim the description below before ruling yourself out.

How this req sits in the market our data

Roughly 15 people in the Miami-Fort Lauderdale-Pompano Beach, FL area plausibly meet what this posting asks for (mobile application developers). range 5–25

Applicant volume Light — Few people clear these requirements, so an application that does clear them gets looked at. Worth applying to even if you miss a nice-to-have.

What gives you an edge
Android Studio6%Xcode6%MVVM10%GraphQL12%

Rare in this occupation — lead with these, and say what you built with them.

What won't set you apart
TypeScript62%Kotlin55%HTML555%CSS353%Swift48%Java45%Firebase40%

Most people in this occupation already list these. Still required — just not what gets you shortlisted.

What the occupation pays Median $135,567 (middle half $104,969–$169,354).

Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.

Why we read it this way (8)

The job title says 'Lead Android Mobile Engineer' but the body consistently frames the role as 'Senior Engineer, Software' covering iOS, Android, and hybrid platforms — the title's 'Lead' label is a naming convention, not a people-management level; the role is an experienced individual contributor.

This is a 6+ month contract engagement, 4 days onsite in Miami (33178) with 1 day remote — it does not qualify as fully remote.

The 5-year experience demands are stated at the capability/domain level (e.g., 'Native and Hybrid Mobile Technologies', 'Mobile SDK Development & API Integration') rather than per individual tool; the years demanded of 5 is applied to the primary named technology within each domain grouping.

Cloud platforms (AWS, Azure, GCP) appear in the Knowledge/Skills/Abilities section without explicit required/preferred framing, so they are treated as preferred.

Dependency injection frameworks (Dagger, Hilt, Swinject) are listed as examples under 'Familiarity with' in the experience section, so Dagger is listed as preferred with Hilt and Swinject as alternatives.

1+ year of cruise/travel industry experience is listed as a requirement but names no technology or tool, so it is captured in notes only: candidates lacking this domain background may be screened out.

ITIL and formal IT project management experience (5+ years) are stated requirements but name no specific technology or tool and are omitted from the skills list per extraction rules.

Posting is for a contract engagement — the market benchmarks below price full-time roles, so read the comp comparison with that in mind.

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