Vasu Aggarwal

Software Engineer

United Arab Emirates4 yrs 4 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in building high-performance mobile applications.
Significant experience in optimizing tech stacks and reducing tech debt.
Passionate about improving developer experience and automating workflows.

Stackforce AI infers this person is a SaaS-focused mobile application developer with expertise in logistics and B2B solutions.

Contact

Skills

Core Skills

React NativeAwsSpring BootNode.js

Other Skills

Amazon Web Services (AWS)Android DevelopmentAndroid SDKAndroid StudioAngularC (Programming Language)C++ExpoExpress.jsFirebaseFront-end DevelopmentFull-Stack DevelopmentGoogle Cloud Platform (GCP)GraphQLJavaScript

About

I specialize in React Native, building high-performance, scalable mobile applications with a focus on logistics, navigation, and B2B SaaS solutions. From optimizing performance to modernizing tech stacks, I enjoy pushing the boundaries of what's possible in cross-platform development. I’m passionate about improving developer experience, reducing tech debt, and automating workflows to make engineering teams more efficient. Whether it's migrating projects to Expo, implementing E2E testing, or designing robust CI/CD pipelines, I focus on delivering seamless, production-ready solutions. Beyond coding, I love sharing insights from my work. I frequently write about my experiences, challenges, and solutions—feel free to check them out below! Let’s connect and talk React Native, performance, and scaling mobile apps! 🚀

Experience

4 yrs 4 mos

Total Experience

2 yrs 2 mos

Average Tenure

3 yrs 6 mos

Current Experience

Routemagic

2 roles

Software Development Engineer II

Mar 2025 – Present · 1 yr 1 mo · United Kingdom · Remote

React.jsReact NativeAmazon Web Services (AWS)AngularSpring BootAWS

Software Development Engineer

Oct 2022 – Mar 2025 · 2 yrs 5 mos · United Kingdom · Remote

Worked on multiple B2B SaaS ERPs for supply-chain logistics
Improved performance of critical features in app by reducing initial load times by 4x (260ms
to 60ms) & re-renders by 50%, achieving near native performance.
Setup strong automated tests to validate releases, E2E tests using detox, and unit-tests using
react-native-testing-library.
Migrated Vanilla React Native to Expo, while adding OTA updates using expo-updates.
Automated build, publish pipeline for app using EAS.
Setting up monorepo for various projects, with common component modules.
Significantly reduced tech debt by upgrading react-native versions (0.60 to 0.74), and other
depreciated packages.
Configured client side caching for Angular web app using service-worker, improving responsiveness
of the application
Worked on integrating printers in the app using native modules to send instructions over BLE.
Implemented multi-tenant event-based architecture in Spring using SQS, to support tenant based
rate-limiting.
Owned the development of NavigateMagic from POC to production, building a expo-module
to integrate native maps and navigation, enabling HGV-compliant routing, real-time deviation
alerts, and seamless cross-platform performance.
Designed a low-clearance bridge warning system using Uber H3 indexing for real-time localised
geo-spatial searches, providing alerts with minimal latency to ensure driver safety.
Onboarded and mentored 4 interns for the projects across the entire tech stack.
Managed play-store, app-store, firebase accounts for all products of the company.

React.jsReact NativeAmazon Web Services (AWS)AngularSpring BootAWS

Fundwave

Full Stack Developer

Jun 2022 – Aug 2022 · 2 mos · Delhi, India

Worked on complete B2B SaaS ERP for VC/PE funds to efficiently manage deals.
Published a infinite-scroll web component to a private node repository written in Lit.
Developed a shared calendar microservice that can be used across multiple products.
Published an article on Building React components for node packages.

Node.jsMongoDBReact.js

Retail pulse

React Native

Jan 2022 – May 2022 · 4 mos · Remote

Worked on a D2C React Native application for kirana store owners, scaled that from 100K to
300K downloads with 150K+ monthly active users.
Developed a Backend driven UI framework for the application.
Migrated authentication from Firebase to custom flow based on Truecaller.
Improved onboarding flow resulting in increased user acquisition by 75%.

Google Cloud Platform (GCP)React.jsReact Native

Freelance

React Native Developer

Aug 2020 – Jun 2021 · 10 mos · India

Worked with various clients in order to convert designs to fully functional apps using react-native.
Integrated backend APIs, collaborated with backend teams for optimal endpoints.
Worked on react-native-reanimated animations for key components of the apps

React.jsReact Native

Solera life sciences private limited

React Native Intern

May 2020 – Aug 2020 · 3 mos · Delhi, India

Develop challenging end to end chat backend for the project with media sending capabilities and offline caching using concepts like WebSockets and MongoDB.
Work with other interns to make front-end more interactive by adding smooth animations and new design elements.
Carry out quality assurance tests to discover errors and optimize usability.

React.jsReact NativeExpress.js

Decartem

Android Developer

May 2020 – Jun 2020 · 1 mo · Delhi, India

Worked with fellow interns on various aspects of the application as well as some of the backend technologies associated with them.
Fixed authentication bugs.
Actively discussed about the possibile shortcomings of the UI and to improve the user experience.
Implemented temporary password for limited access.

MongoDBAndroid Development