Senior Mobile Engineer – Full Stack

Arionkoder

. Build a consumer-facing mobile product from the ground up .

Posted 10/31/2026full-timeRemote • Argentina, Uruguay, Brazil, Colombia, PeruSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building scalable consumer-facing mobile applications, with a strong focus on mobile security and user protection. Proficient in translating high-level concepts into technical solutions while collaborating with senior stakeholders.

Highest-signal resume keywords

Mobile Application DevelopmentBackend Services and APIsScalable Architecture DesignCloud Infrastructure ManagementMobile Security Solutions

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

IOS DevelopmentAndroid DevelopmentAI-Assisted Development ToolsMobile Platform InternalsPhishing DetectionMessage ValidationIdentity VerificationDistributed Systems

Soft Skills

Strong Communication SkillsAutonomous Work Style

Industry Keywords

Consumer-Facing ProductsSecurity-Related DomainsAuthenticationFraud Detection

Tech Stack

Tools & technologies

AndroidCloudDistributed SystemsiOS

About the role

Key responsibilities & impact

Build a consumer-facing mobile product from the ground up
Evolve an early-stage prototype into a functional, scalable application
Translate high-level ideas into concrete technical solutions with senior stakeholders
Shape the product and underlying architecture
Develop solutions focused on mobile security and user protection, including phishing detection, message validation, and identity verification

Requirements

What you’ll need

Strong experience building mobile applications (iOS or Android) in production environments
Experience with backend services and APIs
Familiarity with AI-assisted development tools (Claude, ChatGPT, Gemini, etc.)
Solid understanding of mobile platform internals (permissions, messaging systems, sandboxing, etc.)
Experience designing scalable architectures and making system-level decisions
Comfortable working with cloud infrastructure and distributed systems
Ability to operate with high autonomy and navigate ambiguous requirements
Strong communication skills and experience working with senior stakeholders
Experience working on early-stage initiatives (nice to have)
Experience with consumer-facing products (nice to have)
Exposure to security-related domains such as authentication, fraud detection, and phishing (nice to have)
Experience working in fast-paced innovation or experimentation teams (nice to have)

Benefits

Comp & perks

Monthly USD Service Fee
20 business days of paid Agreed Time Off—Annual + 6 Local Holidays
Caregiver Time Off
A dynamic remote work culture; you can work from anywhere
An entrepreneurial environment