Senior React Native Product Engineer, Consumer Alliance (all genders)

HelloFresh; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Global collaboration

Workspace access: Warsaw Centre Point

End-to-end ownership

Impact at scale

Job summary

HelloFresh in Warsaw, within HelloTech, builds and scales the digital products powering its end-to-end food experience. The role sits in the Cart & Wallet squad and focuses on shipping high-quality cart, checkout and wallet experiences across mobile and web apps.

As a Senior React Native Engineer, you’ll own product problems, validate with data, run experiments on critical surfaces, and collaborate across teams to drive scalable solutions.

Qualifications

• 2–3 years of hands-on React Native experience.
• Minimum 5 years of experience with HTML, CSS, and JavaScript.

Responsibilities

• Build and improve cart, checkout, and wallet flows in React Native apps.
• Run experiments on high-traffic, revenue-critical surfaces.
• Collaborate with engineers to improve code, systems and processes.
• Design and develop scalable solutions.
• Support teammates via workshops, pair programming, and code reviews.
• Own and monitor produced changes in production; ship and learn.

Skills

React Native

JavaScript

HTML

CSS

React.js

Node.js

CI/CD

Testing (unit/integration/e2e)

AI tooling (Claude Code, Cursor, Copil

Tools

AI tooling (Claude Code)

Copilot

Job description

Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month.

Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech.

HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end-to-end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future.

About the role: What's in the Box

The Consumer Alliance drives customer acquisition, conversion optimization, and retention strategies across all HelloFresh and Ready-to-Eat (RTE) brands globally. The alliance is responsible for cross-cutting initiatives that maximize business value through modernized payment processing, dynamic customer activations and reactivations, and organic growth channels like SEO. By leveraging rigorous experimentation, data-driven insights, and continuous backend modernization, we ensure a frictionless, highly optimized funnel that improves conversion rates and sustains long-term growth across all regions.

The Cart & Wallet squad is looking for a Senior React Native Engineer to build and evolve the cart, checkout, and wallet experiences across our mobile and web apps. This is where intent turns into revenue: every change you ship is measured directly in conversion, order value, and customer trust, across all HelloFresh Group's brands and markets, for millions of customers every day, globally.

At HelloTech, flexibility and cross-functional collaboration are core to how we work. While this role is aligned to a specific Alliance, strong candidates may also be considered for opportunities across different teams or projects.

What you’ll do: The Recipe

At HelloFresh we are moving away from a model where software developers just execute tickets toward one where product engineers are trusted to own customer problems. A Product Engineer takes a problem, forms a point of view, validates it with customers and data, and ships it using AI as a force multiplier.

• Build and improve the cart, checkout, and wallet flows in our React Native apps, from problem definition through to production and measurement
• Run experiments on high-traffic, revenue-critical surfaces, and use the results to decide what ships next
• Collaborate with engineers across the department and the company to continuously improve the code base, systems, and processes
• Design and develop solutions that can continue to scale
• Support other team members through workshops, pair programming, and code reviews
• Work beyond your specialization when the problem demands it. Your specialization is your anchor, not your boundary.
• Operate what you build. You instrument, monitor, and improve your systems in production. Shipping is the beginning of the learning cycle, not the end.
• Contribute to the app experience, owning the metrics that reflect quality for mobile customers (retention, crash-free sessions, conversion).

What you’ll bring: The Ingredients

• Hands-on experience working with AI tooling (e.g., Claude Code, Cursor, Copilot) beyond casual experimentation. You use AI agents every day. You have a practical sense of how the context you provide to AI tools shapes output quality, and how to set boundaries on AI-generated work.
• At least 2-3 years of hands-on work with React Native
• A minimum of 5 years of experience working with HTML, CSS, and JavaScript
• Proficiency in building component-based architectures using React.js and Node.js
• Deep understanding of integrating frontend and backend services seamlessly
• Familiarity with CI/CD workflows, along with solid testing practices, including unit, integration, and end-to-end testing
• Strong collaboration skills when partnering with engineers and other functional roles, like product management and UX designer.
• You take full ownership. You have a bias to ship. You finish the last twenty percent.
• You have product sense and are opinionated about what should be built and why, and you can back that opinion with data and user evidence.
• Deep mobile engineering expertise, with experience across the app release cycle, test automation, on-device performance and platform UX conventions.

Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills, and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you.

What we offer: The Toppings

• Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing.
• Technology with real-world impact: Build and operate modern systems at a global scale, supporting 6+ million customers and complex supply chain operations.
• Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup.
• End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability.
• Access to the workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit).

Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.

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