About the company
Credit cards haven't changed much for over half a century so our team of seasoned bankers, technologists, and designers set out to redefine the credit card for you - the consumer. The result is OneCard - a credit card reimagined for the mobile generation. OneCard is India's best metal credit card built with full-stack tech. It is backed by the principles of simplicity, transparency, and giving back control to the user.
The Engineering Challenge
“Re-imaging credit and payments from First Principles”
Payments is an interesting engineering challenge in itself with requirements of low latency, transactional guarantees, security, and high scalability. When we add credit and engagement into the mix, the challenge becomes even more interesting with underwriting and recommendation algorithms working on large data sets. We have eliminated the current call center, sales agent, and SMS-based processes with a mobile app that puts the customers in complete control. To stay agile, the entire stack is built on the cloud with modern technologies.
Check out our apps here:
OneCard (Best credit card app) : http://www.getonecard.app/">www.getonecard.app
OneScore (5 million downloads): http://www.onescore.app/">www.onescore.app
Senior Software Engineer – Frontend
Create a consumer facing front end application that will be used by millions of users.
What you will do:
- Develop our mobile apps using React Native.
- Work with backend, frontend, and other developers to build out a customer-centric experience that will constantly evolve.
- Work with our designers and customer success team to create a seamless user experience.
- Respond to support team tickets as needed to resolve bugs and issues.
- Participate in contributing ideas, updates, and product development areas to the team.
Experience Range:
3-5 years with technical hands-on experience in building a consumer mobile app. You must have shipped an app to the stores.
Technical Expertise:
- 3-5 years experience Android/iOS native apps or React Native based apps and Web front-end technologies such as React.
- Strong command of JavaScript ES6.
- Know how to build (fairly) complex layouts without using any CSS frameworks.
- Strong problem solving and analytical skills using data structures.
- Comfortable in a fast-paced startup environment.
- Bias for action shipping quality code quickly.

About FPL Technologies Pvt Ltd
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About the Role
We are looking for a Senior Android Engineer with deep React Native expertise to build and own the trading
experience on Android — real-time data, interactive charting, fluid interactions, and rock-solid performance. What We’re Looking For
You have shipped production React Native apps that handle real-time data streams, complex UI states, and
performance-sensitive rendering. You understand the Android platform deeply — native modules, bridge
performance, and platform-specific behaviour. Ideally, you have worked on trading, fintech, or data-intensive
mobile products. You take ownership of your features end-to-end, care about code quality, and are comfortable
driving technical decisions independently. What You’ll Do
• Own the mobile trading experience on Android — architecture, performance, and end-to-end quality. • Build and optimize real-time data rendering — WebSocket lifecycle management, efficient list rendering, and minimal re-renders for streaming data. • Integrate complex WebView-based components with bidirectional JavaScript bridge communication. • Collaborate with product and design to deliver polished, intuitive interfaces for a financial product where
trust and clarity are paramount. • Define mobile engineering standards — component architecture, state management patterns, testing
strategy, and performance benchmarks. • Drive code reviews, mentor team members, and champion best practices across the mobile team. • Participate in stabilization and release cycles — profiling, device matrix testing, and regression analysis. Must-Have
• 4+ years React Native experience with production apps on Google Play Store. • Strong TypeScript skills and deep understanding of React Native internals — bridge, native modules, and
performance optimization. • Experience with real-time data handling — WebSockets, efficient UI updates for streaming data, and
state synchronization. • Experience integrating WebView-based components with JS bridge communication. • Proficiency with state management at scale (Redux, Zustand, or MobX).
• Experience with push notifications (FCM), deep linking, and complex navigation patterns. • Strong debugging skills — Flipper, React DevTools, native crash analysis, and performance profiling. Nice-to-Have
• Prior experience building trading, brokerage, or fintech mobile apps. • Experience with charting library integration in mobile apps. • Knowledge of server-driven UI (SDUI) patterns. • Experience with feature flags, A/B testing frameworks, and app modularization. • Familiarity with native Android development (Kotlin) for bridge modules. Tech Stack
Framework React Native
Language TypeScript / JavaScript
State Management Redux / Zustand
Real-time WebSocket, SSE
Charting Charting library via WebView bridge
Testing Jest, Detox (E2E), device matrix testing (Android 10+)
Job Responsibilities
- At least 1-3 Years of Mobile App Development experience in React Native Framework.
- Experience on web service integration (SOAP, REST, JSON, XML).
- Worked on Social API integration, Core location APIs, Payment gateway integration, Google Maps, Webviews, Push Notification Service.
- Must have strong experience in Javascript, React JS.
- Strong Knowledge of SQLite, MySQL, Firebase or similar databases.
- Strong experience in sensors like accelerometer & gyroscope and detecting / correcting memory usage issues.
- Knowledge of HTML5 & CSS3.
Required Skills
- Develop and enhance Mobile Application using HTML5, jQuery Mobile, JavaScript and CSS3.
- Define technical design for mobile application ecosystem (enterprise integration working with REST services, Vendor Mobile APIS, Push notifications, etc.)
- Integrate available plugins to utilize native phone APIs to handle push notifications, geolocation and payment processing (Google Wallet, Apple Pay, etc.)
- Potentially dig down into the native layer to develop custom plugins to achieve desired functionality if not supported by the chosen framework.
- Provide a creative source of ideas/solutions to address problems - strategic and tactical.
- Contribute to the improvement of the efficiency of through scripts, tool code, component development or methodology enhancement.
- Develops, maintains, monitors and tunes performance of the app.
- Collaborate with developers, project managers, business analysts and business users in conceptualizing, estimating and developing new software applications and enhancements.
Desired Skills
- 1-3 years of experience into React Native.
- Published 2 or more apps in the Google Play Store and Apple iTunes store.
Candidates who can join immediately would be preferred.
Note: If you are willing to apply on the above post kindly add your live projects Play Store/ App Store links in the resume.
What does the core role include?
- Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
- Designing stateless components in React Native
- Contributing in all phases of the development lifecycle
- Working with the developers to create and maintain a robust framework to support the apps
- Working with the developers to build the interface with a focus on usability features
What else can you expect in the role?
- Prepare and produce releases of software components
- Optimizing performance for the apps
- Problem-solving skills, analytical mind, and positive attitude
- Ability to think from end users perspective and focused on improving the overall product experience.
- Deliver across the entire app life cycle concept, design, build, deploy, test, release to app stores and support
What can fetch you brownie points?
- Hands on experience with React Native is required
- Hands-on experience in React Native APIs, ReactJS, Javascript, ECMAScript (OOJS) and JSX.
- Strong understanding of JavaScript ecosystem
- Hands on experience on Android in creating Hybrid / Native applications
- Demonstrable UI/UX experience on a large-scale app.
- Thorough understanding of React Native development tools like IDEs (Nuclide, Atom, Sublime Text, or Visual
- Good knowledge of JS frameworks like ReactJS is a plus.
Desired Skills and Experience
Hybrid Apps,React Native, Native iOS and Android Architecture understanding
Responsibilities:
● Design and build advanced applications for the Android platform
● Collaborate with cross-team (developers, designers, product owners, QA) to define,
design, and ship new features.
● Prepare test plans, and test cases and execute/automate them.
● Write and review unit-test code for robustness, including edge cases, usability, and
general reliability
● Problem solve and determine out-of-the-box solutions for complex technical
requirements
● Work with fellow programmers, as well as the rest of the production team, as a lead
programmer and manager.
● Must have very strong problem-solving and analytical skills.
● Application of experience and knowledge to optimise game engine deployment for
virtual reality VR in terms of memory, frame rate and performance.
● Work with emerging technologies to create new tools and systems for interactive
real-time production.
● Ensure compliance with ride requirements, including performance benchmarks and
integration with third-party ride control systems.
● Produce clean, well-documented code and maintain internal engine builds, using
Perforce and other tools to distribute builds to the team.
● End-to-End mobile development life cycle from planning to publishing
Requirements:
● B.Tech/B.E degree in Computer Science, Engineering or a related subject
● Proven software development experience and Android skills development
● Proven working experience in Android app development and have published at least
one original Android app
● Experience with Android SDK
● Experience working with remote data via REST and JSON
● Experience with third-party libraries and APIs
● Working knowledge of the general mobile landscape, architectures, trends, and
emerging technologies
● Experienced in handling both legacy code and greenfield development and can make
technical recommendations based on the needs of the project
● Solid understanding of the full mobile development life cycle.
● Expert-level understanding of object-oriented programming, threading/concurrency,
unit testing, and modern architectural design
● Excellent source control discipline and are comfortable using git flow
● Experience in 3D engine development experience within the games industry is a plus
● Hands-on with Jetpack compose is a plus.
● Scrum, agile process and adherence
● Good project management skills are a plus
● Strong expertise in Kotlin and Java
● Knowledge of Swift and Fuller is a plus
Required Skills:
- Strong hands-on knowledge of Ionic Framework, AngularJS, and Cordova plugins to build great mobile applications
- The candidate will have an opportunity to grow his/her technical abilities by taking on challenging projects.
- Very Good analytical, reasoning and logical skill.
- Good hands-on exposure to JavaScript
- In-depth understanding of HTML5, HTML4, CSS3 frameworks
- Have very good debugging skills.
- Understanding of responsive design principles
- Able to create applications independently.
Must have skills:
HTMl5, CSS3, JavaScript, Angular JS
Ionic Framework (version 4 to 6)
Preferred Skills:
- You have good interpersonal and communication skills and are adept at working with multiple projects to drive desired outcomes.
- You are a creative problem solver with a can-do attitude
- Strong team player and Self-starter
- You pay strong attention to detail and deliver work that is of a high standard
- Interest towards Cricket desired
A Product based company is looking out for software engineers in the following categories.
If your profile matches any of the skills&experience categories and you are looking for a change, Salary won't be a constraint for the right candidate
Category : 0 to 2 years of experience in mobile applications development for android or iOs platforms.
1. Atleast developed 2-5 Application Individually & Publishing apps on Google PlayStore and Apple store.
2.Heavy data storage in Preferences, SQLite database, and Realm and Any storage.
3. Understanding of React app architecture (Android & IOS).
4.Strong knowledge of OOPS concepts and Basic & Strong knowledge ofReact Native.
5.Hands-on Exposure like Git, BitBucket, SVN, etc.
-Collaborate with cross-functional teams to analyze,define,design,code and ship new features.
-Ensure agile test-driven development for robustness,usability,reliability,security and performance.
-Work on fixing bugs by addressing the root cause and improving application performance.
-Continuously discover,evaluate, and implement new technologies/tools to maximise development efficiency and productivity.
-Hands-on individual contributor, reporting to the Head of Technology.
Requirements
-Experience in Cross-platform mobile app development using Flutter/React Native. Prior experience developing with Flutter is a plus.
-Experience developing with Dart, whether with Flutter and/or for the web, is required. Additionally, deep experience contributing to and managing high-scale production mobile apps is desired. Expertise in Android development is preferred.
-Minimum of 2-3 years full-time mobile development experience (Android). Strong system design and architecture skills - specifically for android. Curiosity to tinker around, explore new paradigms and strong zest for continuous improvement.
-Optimizing app performance and memory consumption. E2E App development and/or experience of developing SDKs is good to have.
-Bonus Points - Experience with Java.
-Experience launching and managing Production mobile apps on Android.
-Experience authoring, testing, and deploying code mission-critical applications.
-Debugging Android apps using simulators and related tooling. Developing and releasing complex, data-driven map based apps using Native as the primary application framework. Persisting data for offline-first apps using flutter -Developing reusable UI Components or libraries.
-Networking and integrating third-party APIs using Flutter. Experience developing integrations with common APIs (e.g., Firebase, Twitter, Instagram, Stripe, Youtube, Google etc.)
-Knowledge of Data Structure and Algorithms.
-Knowledge of OOPs principles.
-Understanding of Relational/NoSQL Databases
-Experience with Git
-Mindset to take up project individually.
-Experience working in an agile development process.
-Writing clear, maintainable and testable code.
Recently Expertrons raised a funding of $2.3 Mn in the Pre Series A round witnessing investors like Yoga Capital, Venture Catalysts, Auxano Capital, and existing investors LetsVenture, Ivycap Ventures, Iceland Venture Studios, Nikhil Vora (MD, Sixth Sense), and more.
Website: https://www.google.com/url?q=https://www.expertrons.com/&sa=D&source=editors&ust=1632723867004000&usg=AFQjCNEfP9iCbbT6MjFXH6uESAJ_LSbiUw">https://www.expertrons.com/
Expertrons Android App: https://www.google.com/url?q=http://bit.ly/expertrons&sa=D&source=editors&ust=1632723867005000&usg=AFQjCNEPdzkaKsW0le4tCDbxTVkfoKx1wA">bit.ly/expertrons
Product Demo Video: https://www.google.com/url?q=https://bit.ly/3sFG0G1&sa=D&source=editors&ust=1632723867005000&usg=AFQjCNFHdgcw-AcUqrEALvAOKrMlwWH54g">https://bit.ly/3sFG0G1
Watch Explainer Video: https://www.google.com/url?q=https://bit.ly/3zeBmRM&sa=D&source=editors&ust=1632723867005000&usg=AFQjCNHhRW34qC2qeEREheVGUUhhD3-Hkg">https://bit.ly/3zeBmRM
Responsibilities and Duties
1. Build pixel-perfect, buttery smooth UIs across both mobile platforms
2. Strong knowledge of React workflows (such as Flux or Redux)
3. Implement clean, modern, smooth animations and transitions that provide an excellent user experience
4. Integrate third-party APIs
5. Release applications to IOS and Google Play stores
6. Ability to work through new and difficult React Native issues and contribute to libraries as needed
7. Ability to create and maintain continuous integration and delivery of React Native applications
8. Experience with code optimization and performance improvements
9. Experience in Mongo DB, Node JS, AWS is a plus
10. Strong knowledge of GIT
Required Skills:
1. Strong Algo/DS/Troubleshooting/Problem solving skills & analytical skills
2. Database - React Native, Redux, NOSQL, Redux Saga, Flux, Angular
The idea is not to live forever, but to create something that will!
Be a part of our growing team and climb up the ladder of success. So, if you have the expertise, skills, quirks that can help you add value to Expertrons, then apply with us, now!
- Develop hybrid mobile app for iOS and Android platform using Flutter framework
- Hands of experience in Flutter
- Proven software development experience
- Flutter/ React Native Developer
Developed at least 2 apps and live









