Senior iOS Engineer

Company: Avenga
Location: Buenos Aires, AR
Type: Hybrid
Posted: Aug 22, 2026
Views: 2

✨ AI Summary

Avenga, a global tech company with 6000+ specialists, is hiring a Senior iOS Engineer for a fintech client in Buenos Aires (CABA), under a hybrid model. The role requires 5+ years of native iOS development experience with Swift and Objective-C, covering the full app lifecycle, unit testing, code reviews, and performance optimization. Nice-to-haves include rapid prototyping, UI/UX best practices, and architectural documentation skills.

This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development.

This is the job

In CABA (Argentina) within the fintech industry, we are actively seeking a Senior iOS Engineer to join our team in designing, building, and maintaining high-performance native mobile applications throughout their entire software development lifecycle.

This position operates under a hybrid model in CABA/AMBA.

This is you

  • 5+ years of solid professional experience in software engineering and native mobile development.

  • Deep proficiency in native iOS development using Swift and Objective-C.

  • Hands-on experience across the entire application lifecycle (concept, design, build, test, release, and support).

  • Strong capability in unit testing, code reviews, and performance optimization.

  • Excellent problem-solving, active listening, and conflict-resolution skills.

  • Proactive mindset toward technical innovation, experimentation, and continuous improvement.

  • Alignment with practice goals to support team OKRs and knowledge sharing.

Nice-to-have skills:

  • Experience in building rapid prototypes during technical scoping phases.

  • Knowledge of UI/UX best practices for crafting clean, intuitive mobile interfaces.

  • Familiarity with architectural documentation and defining engineering guidelines.

This is your role

  • Design, build, and maintain robust iOS components, screens, modules, and sub-assemblies based on technical specifications.

  • Collaborate closely with cross-functional developers and product managers to translate functional requirements into scalable mobile solutions.

  • Execute tasks across the lifecycle, maintaining production apps, fixing bugs, and implementing new features on schedule.

  • Refine specifications, reuse existing components, and ensure code quality through rigorous unit testing and code reviews.

  • Create and update architecture documentation, inline code comments, and functional specifications.

  • Identify opportunities for process optimization and contribute to defining engineering standards and tech stack evolution.


At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.

About the Company

Name: Avenga
Location: 16 presence countries

At Avenga, we believe that human creativity empowers technology that matters. We’re an international team of over 6000 curious minds, bold thinkers, and tech experts working together to build solutions that solve complex business and societal challenges.

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