Chief JavaScript Engineer (React Native / Mobile)

EPAM Systems; Argentina; On-site; ARS 3,000,000 - 6,000,000; Full time

Benefits offered by this job

Healthcare benefits

Global career opportunities

Professional development

Job summary

EPAM Systems in Argentina seeks a Chief JavaScript Engineer to own the technical vision and execution of large-scale React Native apps with an iOS-first approach before expanding to Android. You will blend deep technical expertise with leadership, setting architecture direction and elevating engineering standards across the mobile organization.

You will drive security, scalability, and integration work, mentor engineers, and partner with product and executives to translate business goals into

Qualifications

• 7+ years of software engineering experience.
• Senior leadership experience on mobile initiatives.
• Hands-on React Native/Expo in production.
• Strong architecture and code-review skills.

Responsibilities

• Own the technical vision and engineering execution for mobile apps, prioritizing iOS-first delivery.
• Set engineering standards, guidelines, and architectural patterns across mobile teams.
• Design security, scalability, and integration solutions (auth, CMS, personalization).
• Lead architecture reviews and drive quality and consistency at scale.
• Collaborate with product, engineering and execs to translate business goals into tech strategy.
• Define and own roadmaps and ensure alignment with long-term business objectives.

Skills

React Native

TypeScript

Leadership

Architecture

CI/CD

AWS

Okta

English B2

Tools

Expo

AWS

Okta

Job description

We're looking for a Chief JavaScript Engineer to own the technical vision and engineering execution of large-scale React Native applications, built with an iOS-first approach before expanding to Android. This person will blend deep technical expertise with organizational leadership—setting architecture direction, elevating engineering standards, and ensuring delivery excellence across the entire product lifecycle. Join us to help build a scalable mobile infrastructure.

Responsibilities

• Own the technical vision and engineering execution for mobile applications, driving iOS-first delivery and Android follow-up
• Set engineering standards, coding guidelines, and architectural patterns across the mobile organization
• Design and oversee security, scalability, and integration solutions covering authentication, CMS, and personalization
• Drive technical decision-making and lead architecture/code reviews to maintain consistency and quality at scale
• Partner with product, engineering, and executive stakeholders to translate business goals into technical strategy
• Define and own technical roadmaps, ensuring architecture choices align with long-term business objectives
• Evaluate and select tools, libraries, and frameworks that support long-term scalability and maintainability
• Build and mentor engineering talent, fostering a culture of technical excellence across the team
• Produce and maintain architecture diagrams, integration flows, and technical documentation
• Identify risks, dependencies, and technical debt, driving proactive mitigation strategies
• Own CI/CD strategy and release management processes for mobile applications
• Act as the top technical authority for mobile engineering, resolving complex technical challenges

Requirements

• 7+ years of overall software engineering experience
• Proven track record in a senior leadership role such as Chief Engineer, Principal Engineer, or Lead Architect on mobile initiatives
• Strong leadership skills in technical decision-making, mentoring, and team development
• Extensive experience with enterprise-scale applications and cross-functional stakeholder alignment at the executive level
• Deep hands-on experience with React Native and Expo in production mobile applications
• Expert-level TypeScript skills and strong command of the modern JavaScript ecosystem
• Extensive experience with cloud services, particularly AWS, and scalable backend integration
• Deep expertise in mobile architecture patterns, design principles, and industry best practices
• Experience with authentication and security using Okta or comparable identity providers
• Strong API and integration skills across mobile-to-backend and third-party services
• Proven experience with CI/CD strategy, mobile release management, and pipeline design
• Excellent communication skills, able to translate business needs into technical solutions for both technical and non-technical audiences
• Upper-Intermediate English proficiency (B2)

Nice to have

• Android SDK experience and native module integration
• Mobile CI/CD implementation experience for enterprise-scale releases
• Experience with cloud platforms beyond AWS
• Background in healthcare, medical devices, or MedTech domains
• Experience with Okta customer identity solutions

We offer

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn