Senior iOS Developer (Ecommerce)

TL;DR

Senior iOS Developer (Ecommerce): Developing the iOS project architecture and improving the checkout and payment flow for the Joom Marketplace app with an accent on new payment methods, delivery options, and post-purchase user experience. Focus on implementing user-visible changes, improving user retention, and maintaining the automated test base.

Location: Lisbon, Portugal. Flexible hours with a possibility to work remotely 52 days per year.

Company

Joom is a global cross-border marketplace where millions can find anything they want at fair prices.

What you will do

• Develop the iOS project architecture and design APIs for interaction with the backend part.
• Improve the checkout and payment flow (new payment methods, delivery options, etc.).
• Develop features related to the post-purchase user experience in Joom (order details page, package tracking, refunds and returns process, AI support).
• Support product initiatives (implementing user-visible changes), participate in feature discussions and experiment launches.
• Work on improving user retention.
• Maintain and expand the automated test base.

Requirements

• Strong proficiency in Swift and solid understanding of UIKit principles.
• Experience developing client–server applications.
• Experience with any reactive framework.
• Experience working with dependency management and modularization.
• A strong plus would be experience using AI tools (such as Cursor, Claude Code, or similar) with the ability to analyze what worked, what didn’t, and why.

Culture & Benefits

• Compensation package: base salary and performance-based bonuses.
• Office-first: flexible hours with a possibility to work remotely 52 days per year, and 22 days of paid annual leave.
• Care & Wellbeing: health insurance (including dental care) for employees and their children, daily meal allowance, and 100% paid sick leave.
• Relocation Support: full assistance for a smooth relocation for the employees and their family.
• Team & Growth: collaboration with colleagues across Portugal, Brazil, Latvia and China, with opportunities for promotions, professional trainings, and English courses.
• Community & Engagement: annual team building activities, knowledge-sharing workshops, and a strong sense of team work.