Senior Software Engineer, ReactJS

Delivery Hero SE

Job

In this role, you will create responsive frontend solutions using ReactJS, implement performance optimizations, and enhance user experience through efficient WebView integration and modern architectures.

Job summary

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Job technologies

Your role in the team

  • We are on the lookout for a Senior Software Engineer, ReactJS - (Logistics) to join the Service Experience team on our journey to always deliver amazing experiences.
  • In Service Experience, we make help instant and effortless.
  • We believe getting help should be as easy as ordering dinner.
  • We erase the boundaries between users, AI agents, human agents, and riders to create one continuous conversation.
  • No matter where the user starts, we carry their context forward, saving them time and effort at every step.
  • As a Frontend Engineer on our team, you'll play a key role in shaping this experience.
  • You'll build responsive, high-performance interfaces that carry context across touchpoints, enabling smooth transitions between automated and human support.
  • Your work will directly impact how millions of users get help—turning complex workflows into simple, elegant interactions.
  • In our Logistics Team, you'll tackle high-impact challenges that make last-mile delivery efficient, affordable, and sustainable.
  • Your work will directly improve experiences for riders, end customers, and merchants across the globe.
  • Each enhancement you contribute will help Delivery Hero optimize delivery operations, supporting expansion into new areas like grocery and retail.
  • Engineered high-performance frontend solutions that slashed global application load times, directly boosting user retention and conversion rates.
  • Architected and optimized seamless WebView integrations for iOS and Android, ensuring a native-like UX through sophisticated bridge communication and hybrid rendering strategies.
  • Native SDK integration, work with Android and iOS SDKs to support hybrid or embedded web experiences (e.g., WebViews, SDK integrations).
  • Led the strategic modernization of a complex legacy monolith, decomposing tightly coupled code into a scalable, modular micro-frontend architecture.
  • Advanced technical excellence by implementing cutting-edge code splitting, tree shaking, and multi-tier caching strategies to minimize bundle sizes and execution overhead.
  • Partnered across organizational boundaries, aligning with native Host App engineers and product owners to synchronize release cycles and ensure seamless feature parity.
  • Established a culture of observability by defining core KPIs and deploying robust monitoring frameworks (SLIs/SLOs) to proactively resolve performance bottlenecks.

Our expectations of you

Qualifications

  • Hybrid Architecture Expertise: Proven track record of managing the nuances of WebView-to-Native communication and optimizing the critical rendering path within mobile shells.
  • Core Engineering Mastery: Deep-seated fluency in TypeScript and React, coupled with an "under-the-hood" understanding of browser engines, event loops, and DOM performance.
  • Performance-First Mindset: Demonstrated ability to profile and fix runtime jank, memory leaks, and network overhead using Chrome DevTools and synthetic monitoring.
  • Strategic Problem Solving: A history of navigating technical debt and architectural ambiguity with a strong sense of ownership and the ability to influence stakeholders.
  • Data-Driven Reliability: Expert-level use of Sentry, Datadog, or New Relic to transform raw telemetry into actionable performance improvements.

Experience

  • DevOps & Tooling Proficiency: Hands-on experience scaling CI/CD pipelines (GitHub Actions, Docker) and configuring sophisticated build tools like Webpack, Vite, or Esbuild.

What we offer

  • Ensuring you and all our Heroes are looked after, happy, and healthy is always on the menu.
  • Make the most of our hybrid working model and join the team for face-to-face connection and collaboration in our beautiful Berlin campus 2 days a week.
  • We offer 27 days holiday with an extra day on the 2nd and 3rd year of service.
  • We will support you in developing yourself and your career growth opportunities: €1,000 educational budget, language courses, parental support, and access to the Udemy Business platform to explore a variety of online courses.
  • Get moving and release those wonderful, mind-boosting endorphins: Health Checkups, Meditation, Gym & Bicycle Subsidy.
  • Cash. Dough. Cheddar. Whatever you call it, we'll help you with it: Employee Share Purchase Plan, Sabbatical Bank, Public Transportation Ticket Discount, Life & Accident Insurance, Corporate Pension Plan.
  • The power of getting together over some food is unrivaled. Here are a few ways to help you do that. All the yum: Digital Meal Vouchers, Food Vouchers, Corporate Discounts.
  • Wondering what relocating to Berlin is like? In this article, we've put together 10 things you should know about moving to Berlin and how Delivery Hero can support you.
  • You can also visit our relocation hub and check out more information about moving to Berlin.

Benefits

Topics you will work on

Job locations

About your employer

What started as an ambitious idea is now the leading local delivery company. Delivery Hero is present in around 50 countries across four continents and is on a mission to deliver anything, straight to customers’ doors.

Founding year
2011
Language
English
Company type
Established Company
Work model
Onsite, Hybrid
Industry
Trade

Employer reviews

3.2Total(2 reviews)
Engineering
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2.8
Career growth
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3.2
Team culture
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3.3
Working conditions
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3.8
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Senior Software Engineer, ReactJS

Delivery Hero SE