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Senior React Native Engineer

Madfish

Madfish

Software Engineering
Ukraine
Posted on Nov 28, 2025

About Liki24

Liki24 is a Health & Wellness marketplace connecting sellers across multiple countries to make health and personal care products accessible globally. Our cross-country delivery platform allows customers to see the same SKU offered by different sellers in various countries, compare prices, and receive a single, consolidated delivery — via standard or air shipping.

After raising $9M in funding, we’re scaling our product globally, investing in new marketing channels, and building a high quality experience for our customers.

Role Context

You’ll join a cross-functional product team that owns all customer-facing experiences — websites and the mobile app. The team includes 3 Senior Full-Stack Engineers (+1 hiring), 1 Middle Full-Stack Engineer, 1 Junior React Native Engineer, 2 QA Engineers, a Designer, and a Product Manager. And there is a separate team focused on our internal ERP platform.

Until now, the mobile app has been maintained by a single junior engineer, while the rest of the team has focused on the website and other priorities. We’re now looking for a Senior React Native Engineer who can take over full ownership of the app, drive architectural decisions, modernize the codebase, and lead the next stage of mobile growth.

Your Mission

Build a mobile app that delivers more value than the website — faster, smarter, more personalized — becoming the preferred experience for Liki24 customers worldwide.

Key Responsibilities

  • Own the technical development of the React Native application: architecture, performance, scalability, and quality.
  • Perform deep refactoring and modernization of the current codebase, implementing best practices and modern patterns.
  • Design and develop new, high-impact features (key features from Roadmap are listed below).
  • Collaborate with web and backend teams to make architectural decisions across the entire platform (back-office ERP, website, application).
  • Implement best practices in monitoring, stability, and performance analytics.
  • Work closely with product, design, and QA to ensure an outstanding user experience and app stability.
  • Mentor the junior mobile engineer;

Key Roadmap features

  • 3P marketplace support (buying options browsing, cart and checkout capable of multi-seller grouping).
  • New sources of getting rewards in Rewards program (product cashback, unlocking achievements).
  • Referral system (sharing referral reference that gives discount to both participants).
  • Integration with recommendation engine (cross-sell in cart & upsell in checkout).
  • Autoship & Save for repeat purchases.
  • New version of Stories feature.
  • Enhanced A+ content in the Message Feed.
  • Native Apple Pay and Google Pay integrations.

Key Skills & Experience

  • 5+ years of professional experience with React Native.
  • Strong understanding of mobile app architecture, performance optimization, and rendering lifecycle.
  • Experience working with native modules (iOS/Android), push notifications, deep links, app signing, and store distribution.
  • Hands-on experience integrating payment systems (Apple Pay, Google Pay).
  • Solid knowledge of backend communication (REST, caching, error handling).
  • Familiarity with CI/CD tools for mobile (we use Expo EAS).
  • Proven ability to make architectural decisions, challenge existing approaches, and find pragmatic solutions.
  • English — Upper Intermediate or higher.

Nice to have:

  • Experience building marketplace or e-commerce products.
  • Understanding of product analytics, A/B testing, and data-driven iteration.

What We Offer:

  • Opportunity to work in a global company with a strong social mission.
  • Ability to transform your ideas into impactful realities.
  • Chance to be part of an open-minded and innovative team.
  • Exceptional opportunities for personal and professional growth.
  • 20 paid vacation days, 21 paid sick leaves, and paid national holidays.
  • Flexible schedule with the option to work from home.

We are making Health! If you’re excited about growth challenges, passionate about impact, and not afraid to experiment — join us!