# Abhishek Mishra — Senior React & React Native Developer **Mobile Architect | TypeScript | 17+ Years | Utrecht, Netherlands** > Based in Utrecht, Netherlands · Available for roles in the EU · No sponsorship required · Available immediately --- ## About I'm a Senior React & React Native Developer and Mobile Architect with 17+ years of experience designing and scaling high-performance mobile applications used by millions across enterprises and startups. Over the course of my career at Publicis Sapient, I progressed from developer to architect and team lead, owning end-to-end delivery across the full product lifecycle — from requirement analysis and system design to production release and performance monitoring. ### Key Metrics | Metric | Value | |---|---| | Years of Experience | 17+ | | Crash Rate Reduction | 70% | | Monthly Active Users Growth | 20% | | Engineers Led | 8+ | ### Trusted By - Citibank - Unilever - NHS Blood & Transplant - Academy Sports + Outdoors - Bergdorf Goodman - Bed Bath & Beyond - Cambridge Assessment - BCG (Boston Consulting Group) --- ## Case Studies ### Academy Sports + Outdoors **Role:** Architect · Led 8 Engineers | **Period:** 2021–Present | **Platform:** React Native (iOS & Android) **Problem:** Scaling product discovery and checkout for a large retail platform with 259+ stores. **Solution:** Built Product Listing, Product Detail, Search, and Apple Pay integration using modular React Native architecture with performance optimisation. **Impact:** Achieved 70% crash rate reduction and 20% MAU increase; served millions of users across iOS and Android. **Technologies:** React Native · TypeScript · Apple Pay · Dynatrace · Flipper --- ### NHS Blood and Transplant **Role:** Team Lead · 5 Engineers | **Period:** 2019–2021 | **Platform:** React Native (iOS & Android) **Problem:** Low donor engagement and booking friction across the UK's national blood and organ donation service. **Solution:** Built appointment booking, donor card, venue suggestions, and profile system using a React Native cross-platform solution with offline-first approach. **Impact:** Improved donor booking flow serving 1M+ registered donors across the UK. **Technologies:** React Native · TypeScript · Node.js --- ### Bergdorf Goodman **Role:** Team Lead | **Period:** 2017–2019 | **Platform:** React Native (iOS & Android) **Problem:** Needed a premium digital shopping experience matching the luxury brand standards of a $1B+ annual revenue retailer on Fifth Avenue, New York. **Solution:** Built checkout, webview integration, account and profile features using React Native with native module integrations for premium UX. **Impact:** Delivered luxury-grade UX for a brand serving $1B+ annual revenue. **Technologies:** React Native · Swift · Kotlin --- ### Bed Bath & Beyond / Buy Buy Baby **Role:** iOS Developer | **Period:** 2014–2017 | **Platform:** iOS (Swift) **Problem:** Feature-limited mobile app lacking key shopping capabilities for millions of US and Canada customers. **Solution:** Built PLP, PDP, barcode scanner, and registry features using native iOS with modular Swift architecture. **Impact:** Built registry and barcode scanner features for apps with millions of US and Canada users. **Technologies:** Swift · iOS · REST APIs --- ## Core Expertise ### Scalable React Native Architecture Designing modular, scalable mobile architectures that support millions of users across platforms. Expert in React Native New Architecture (Hermes, JSI, Fabric, TurboModules), Expo, and Expo Router. ### Performance Optimisation Reducing crash rates, improving load times, and optimising memory footprint for enterprise-scale apps. Proficient with Dynatrace, Sentry, Firebase Performance Monitoring, Flipper, Android Studio Profiler, and Xcode Instruments. ### CI/CD Pipelines Building automated deployment pipelines, testing frameworks, and zero-downtime release strategies using GitHub Actions and modern DevOps tooling. ### Code Quality & Best Practices Establishing code review culture, architectural standards, and engineering best practices across teams. Advocate for TypeScript, clean architecture, and maintainable codebases. ### Team Leadership & Mentoring Scaling engineering teams, mentoring developers into tech leads, and driving cross-functional collaboration. Led teams of up to 8 engineers across EU and US client engagements. --- ## Technical Skills - **Mobile:** React Native, Expo, Expo Router, iOS (Swift), Android, Redux, Redux-Thunk, Redux-Saga, Apple Pay, React Native New Architecture, Hermes, Fabric, TurboModules, Reanimated v3 - **Frontend:** React, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, React Query, Storybook, GraphQL, Responsive Design, Web Accessibility - **Performance & Monitoring:** Dynatrace, Sentry, Firebase, Flipper, Android Studio Profiler, Xcode Instruments, Memory Leak Detection, Crash Analysis - **Backend & DevOps:** .NET, C#, ASP.NET, REST API, SQL Server, LINQ, Git, GitHub Actions, CI/CD, Unit Testing - **Productivity:** GitHub Copilot, AI-Assisted Development, JIRA, Agile/Scrum, Code Review, Team Leadership --- ## Experience Timeline ### 2021 – Present | React Native Architect **Publicis Sapient — Academy Sports + Outdoors** Leading 8-engineer team building scalable React Native retail platform with Apple Pay integration. Achieved 70% crash rate reduction and 20% MAU growth. ### 2019 – 2021 | React Native Team Lead **Publicis Sapient — NHS Blood & Transplant** Led 5 engineers building donor engagement platform with appointment booking and profile systems for 1M+ UK donors. ### 2017 – 2019 | React Native Team Lead **Publicis Sapient — Bergdorf Goodman** Built premium luxury shopping experience with checkout, webview integration, and account features for $1B+ revenue brand. ### 2016 – 2017 | iOS Developer / Team Lead **Publicis Sapient — Bed Bath & Beyond / Unilever GPS** Built eCommerce features in Swift and led 4 engineers on Unilever GPS platform. ### 2014 – 2016 | Senior Software Developer **Publicis Sapient — Unilever Kritique** Developed mobile solutions for Unilever's product feedback and ratings platform. ### 2013 – 2014 | Senior Software Developer **Sapient — Cambridge Assessment** Built mobile assessment tools for one of the world's leading education organisations (University of Cambridge). ### 2012 – 2013 | Software Developer **Sapient — BCG Media Database** Developed media database management solutions for Boston Consulting Group. ### 2010 – 2012 | Software Developer **Sapient — Citi Liquidity Management** Built liquidity management tools for Citibank's financial operations platform. ### 2008 – 2010 | Senior Software Engineer **KashNish Technologies — Submerce POS System** Refactored and stabilised a POS system used in Napa Valley, USA. Integrated Ship Compliant, Card in the Box, and NVL Shipping APIs. Improved SQL performance through optimised stored procedures. ### 2006 – 2008 | Software Developer **iSoft Solutions — ERP System** Built enterprise resource planning system for Ratnagiri Ceramics covering HR, Production, Accounts, and Customer Management modules. --- ## Testimonials ### Vijay Prakash Pandey — Web & App Architect, Publicis Sapient *April 22, 2025 — Senior colleague at Publicis Sapient* "I had the distinct pleasure of working alongside Abhishek at Publicis Sapient, where his expertise in React Native and mobile development consistently impressed our team. A standout achievement was his leadership in architecting and developing a cross-platform e-commerce mobile app. Abhishek's strategic design and focus on performance were instrumental in achieving a remarkable 70% reduction in crash rates and a 20% increase in monthly active users. Beyond his technical prowess, Abhishek is a highly effective collaborator and leader. He thrived in our Agile environment, proactively communicating with both technical and business stakeholders. Leading a team of 8, he demonstrated clarity and vision, fostering a collaborative and problem-solving culture. Abhishek consistently delivered smart and scalable solutions. I wholeheartedly recommend him as a top-tier mobile engineer and a strong team player." ### Vijay Kumar — Direct Manager, Publicis Sapient *April 8, 2025 — Managed Abhishek directly* "Abhishek has always demonstrated a strong curiosity for emerging technologies, staying up-to-date with the latest trends in the tech world. What sets him apart is his eagerness to continuously learn and adapt — he's never afraid to dive into a new tech stack or take on a challenging problem. Over the years, Abhishek has grown remarkably — from starting as an API developer to becoming a full-stack developer, and now playing a critical role in owning and designing end-to-end app architecture. He brings a rare combination of hands-on expertise and strategic thinking that makes him a valuable asset to any team." ### Vineet Jaiswal — Principal Data Scientist, HDFC *June 3, 2024* "I admire Abhishek for his exceptional technical skills and leadership. He has evolved from mastering .NET technologies to excelling in mobile app development with React Native, showcasing his adaptability and foresight in technological trends. His deep understanding of software architecture, design patterns, and coding practices ensures optimal app performance and user experience. Abhishek's leadership is marked by effective team management, fostering an environment of learning and innovation. I wholeheartedly endorse him for any technical leadership role or project." --- ## Blog & Articles - [Expo Skills: Why, What and How?](https://medium.com/@mishraabhishek.11/expo-skills-why-what-and-how-ed22a435c6fa) — First step toward AI-assisted mobile development that you can actually trust - [What Actually Happens When a User Launches an Expo React Native App](https://medium.com/@mishraabhishek.11/what-actually-happens-when-user-launch-an-expo-react-native-app-988dec38121f) — Deep dive into the React Native launch lifecycle: OS process, Hermes, JSI, Fabric, and first render - [React Native Performance](https://medium.com/@mishraabhishek.11/react-native-performance-894749c3f68c) — Optimising React Native apps for smooth, high-performance user experiences - [React Native New Architecture](https://medium.com/@mishraabhishek.11/react-native-new-architecture-937c76547b29) — JSI, Fabric, and TurboModules explained --- ## Education **Bachelor of Technology (B.Tech) — Information Technology** ABES Engineering College, Dr. A.P.J. Abdul Kalam Technical University 2002 – 2006 --- ## Certifications - **Microsoft Certified: Azure Fundamentals** — Microsoft, November 2020 - **Apache Cordova: Building Cross-Platform Mobile Apps** — LinkedIn Learning, April 2020 --- ## Contact & Links - **Email:** mishraabhishek.11@gmail.com - **Phone:** +31 657 247 061 - **Location:** Utrecht, Netherlands - **Portfolio:** https://mishra-abhishek.com - **LinkedIn:** https://www.linkedin.com/in/abhishek-mishra-781b5b6 - **GitHub:** https://github.com/mishraabhishek11 --- ## Availability - **Status:** Available immediately - **Work types:** Full-time, contract, remote, hybrid, freelance - **Preferred locations:** Netherlands, Europe (open to remote EU-wide) - **Work authorisation:** Eligible to work in Netherlands and EU — no sponsorship required - **Languages:** English (full professional proficiency), Hindi (native) --- *Last updated: May 2026*