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Position: Senior React Native Developer (4- 7 years)

Location: Remote (Company in Mumbai)

Company: Big Rattle Technologies Private Limited

Immediate Joiners only.

Summary:

We're looking for a seasoned React Native developer who has shipped production-grade mobile apps on both iOS and Android — ideally in the high-traffic, high-stakes world of e-commerce. You'll own the mobile experience end-to-end: architecture, performance, and flawless UX across devices.

Note: We are looking for a senior expert who has delivered multiple apps that are built from scratch and hosted on Apple Store/ Play Store i.e. e2e lifecycle.

KEY RESPONSIBILITIES

• Design and build scalable React Native apps for both iOS and Android from scratch to App Store / Play Store deployment.
• Architect complex e-commerce flows — product catalogues, cart, checkout, payment gateway integration, and order tracking.
• Optimize app performance: reduce TTI, maintain smooth 60fps animations, and manage memory on low-end devices.
• Integrate REST and GraphQL APIs; manage state with Redux Toolkit, Zustand, or React Query.
• Implement push notifications, deep linking, in-app navigation, and offline-first strategies.
• Write clean, well-tested code; maintain CI/CD pipelines using Fastlane, GitHub Actions, or Bitrise.
• Collaborate with designers, backend engineers, and product managers in Agile sprints.
• Conduct code reviews and mentor junior mobile developers.

Required Skills:

Core Mobile

▸ React Native CLI & Expo

▸ TypeScript

▸ React Navigation v6+

▸ iOS (Swift basics) & Android (Kotlin basics) ▸ Xcode & Android Studio

E-commerce & Integrations

▸ Product / Cart / Checkout flows

▸ Razorpay, Stripe, PayPal SDKs

▸ Wishlist, search UX, filters

▸ Order tracking & delivery status

▸ Push notifications & deep linking

State & Data

▸ Redux Toolkit / Zustand

▸ React Query / SWR

▸ REST & GraphQL APIs

▸ AsyncStorage / MMKV

▸ Firebase Realtime DB / Firestore

DevOps & Tooling

▸ Fastlane & GitHub Actions / Bitrise

▸ Jest (unit) & Detox (E2E)

▸ Firebase Crashlytics & Sentry

▸ Flipper / Reactotron

▸ App Store & Play Store deployments

Nice to Have skills: New Architecture · RN Web · AR try-on · RTL support · Shopify SDK · WCAG · Maps SDK

• React Native New Architecture (JSI / Fabric / TurboModules)
• React Native Web or monorepo setups (Nx, Turborepo)
• AR product try-on experiences (ARKit / ARCore)
• Shopify Storefront API or WooCommerce SDK experience
• Accessibility (WCAG mobile) implementation
• Live order-tracking maps (Google Maps / Mapbox)

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.

Why should you join Big Rattle?

Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.

Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.

What We Offer:

• Opportunity to work on diverse projects for Fortune 500 clients.
• Competitive salary and performance-based growth.
• Dynamic, collaborative, and growth-oriented work environment.
• Direct impact on product quality and client satisfaction.
• 5-day hybrid work week.
• Certification reimbursement.
• Healthcare coverage.

Job Purpose

• Deliver on significant portfolio indicators and maximise resolution/ roll backs/ normalization / recoveries and influence reduction in bucket inventory by enhancing performance.

• Be the executor of collection strategies implemented by the ACLM/RCLM/Centre Head.

• To ensure that all laid down processes are adhered to without any deviations. Have checks and balances to ensure smooth process adherence.

Liaison with other functions and departments viz. sales , credit, operations , RIC, Legal Receivables Management

Job Responsibilities(JR) :

• Manage and deliver monthly performance in terms of, resolution, roll backs, recovery rates/ values as per the target set for the assigned portfolio.

• Review field follow-up for the portfolio managed towards achievement of target set.

• Monitor the agency / field executive’s performances periodically.

• Achieve the money collection under principal, fees & charges as per targets.

• Regular visit to yard and reporting thediscrepancies / compliant items as a visitreport. (Applicable for Auto, Two Wheeler,

Agri & CTG Loans)

• Ensuring timely allocation and field follow- up.

• Effectively address disputes, expired etc cases to prevent any probable escalation and highlight sensitive accounts to Area Collection Managers to prevent the same.

• Ensure trails updates are recorded in web- collections for follow-up on skip marking,deceased specifically apart from follow-up on normal portfolio.

• Ensure that the agency resources are optimally used wrt the number of visits, contacts, PTP conversion ratio etc.

• Ensure that calls are made on the portfolio thru recorded lines during the month at the agency level and field visit updates are available in the web-collections. Call recordings have to be validated and updated in the visit report submitted to the agency process Management

• All Banks process to be adhered to in totality in Unit performance

• Cash deposit process including monitoring TAT taken by agencies to deposit money collected.

• Receipt Management – including receipt recon, sighting of unused receipts, completion of lost receipt formalities.

• Settlement process involving issue of settlementletters to be in line with approvals received.

• Manage escalations and ensure resolution of all cases.

• Ensure repo process including repo kit to vendors, usage of repo app at agency level, valuation, sale of vehicle (online/ off line), RC

book updation are managed as per the laid down guideline.

• Training programs to be done monthly and all employees to be covered for minimum man hours every quarter.

• All vendor bills are processed within 30 days of work and no vendor bill is left unprocessed for 60 days at any given point of time

• Ensure 100% usage of collection system and receipt mobility (HHT).

• Ensure nil delay in cash TAT and mis-posting of payments Vendor Management

• Management of field/ referral vendors

• Ensure compliance from the vendors on laid down processes.

• Monitor performance of field agencies and address performance deficiencies.

• Ensure 100% compliance of critical items like DRA certification/ police verification etc.

• Code of conduct to be followed by the vendor across aspects of field and tele calling.

• In case of yard management, ensure set targets for the inventory movement in yard and sale process are met.

Regular review of vendors/yards basis their performance, man power invested productivity expectations and process norms.

Relationships and Roles

To ensure smooth functioning of day to day process, the position is critical to have close interaction with following functions

INTERNAL

• Sales (Sales Manager) : coordinating with sales for feedback and resolutions on Non-starters / frauds. Sharing data regarding negative profiles and areas basis portfolio trends

• Local Operations/CPU : coordinating for regular schedule uploads, receipt management, PDC management , PDC presentation. For retrieval of relevant documents for skip tracing and fraud cases

• Process team (Process Managers and Central team): For process and compliance related items EXTERNAL

• Collection Agencies : For delivery of numbers and compliance to process and regulatory requirement

Code Of Conduct & HR Trainings

To follow code of conduct guidelines of bank. Code of conduct training to be done at agency level as per process guidelines.

To nominate and get mandatory trainings done for self as per HR training schedules.

Legal

• Initiating legal in high POS delinquent cases.

• Coordination with legal team for effective use and execution of legal tools.

Educational Qualifications

Graduate / Post Graduate / MBA

Key Skills

• Should possess good communication skills

• Good leadership quality and molding and supporting the team for desired results as per management expectations(for \agencies/off-rolls staff)

• Should be able to handle deadlines and compliance items

• Should be good on follow up and accomplishment of targeted achievements

Experience Required

Sufficient hands on work experience of min. 2 years and above in financial industry

• Should have managed a team of agencies staff/outsourced staff demonstrating high level of competence.

• Should be mature enough to handle customer and agency xecutives/vendors pressurized situations and ensure targets /deadlines

• Should be mature enough to handle people in pressurized situations and ensure targets /deadlines met.

Major Stakeholders

Customers

• Branch Banking Team

• Operations / Sales / Process / RIC / Legal

Experience in Core Java and Spring Boot.

 • Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns. 

• Should have the ability to analyze, design, develop and test complex, low-latency clientfacing applications. 

• Good development experience with RDBMS.

 • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. 

• Excellent problem solving and coding skills. 

• Strong interpersonal, communication and analytical skills. 

• Should have the ability to express their design ideas and thoughts

Key Responsibilities:

• Strategic Growth Planning: Develop and execute strategies to drive sustainable growth and expansion in alignment with company goals.
• Market Analysis: Conduct thorough market research and analysis to identify new opportunities, market trends, and competitive threats.
• Business Development: Lead initiatives to acquire new business partnerships and opportunities, including identifying potential clients and negotiating agreements.
• Operational Excellence: Streamline and optimize internal processes and workflows to enhance efficiency and productivity.
• Financial Management: Collaborate with finance teams to develop budgets, monitor financial performance, and ensure cost-effectiveness.
• Team Leadership: Provide strong leadership and mentorship to cross-functional teams, fostering a culture of collaboration, innovation, and continuous improvement.
• Performance Metrics: Establish key performance indicators (KPIs) and metrics to track progress towards goals, regularly reporting to senior management.
• Risk Management: Identify potential risks and develop mitigation strategies to ensure business continuity and resilience.

Qualifications:

• Education:  MBA or equivalent from a prestigious institute such as IIM preferred.
• Experience: 4-6 years of progressive experience in business development, operations management, or related fields. Prior experience in a leadership role preferred.
• Analytical Skills: Strong analytical and problem-solving abilities, with a data-driven approach to decision-making.
• Communication Skills: Excellent communication and interpersonal skills, with the ability to influence and collaborate effectively at all levels of the organization.
• Strategic Vision: Proven ability to think strategically, anticipate future trends, and translate vision into actionable plans.
• Adaptability: Ability to thrive in a fast-paced environment and effectively manage multiple priorities under tight deadlines.

The Role

• Create fast and functional and intuitive interfaces.
• Create mobile responsive web pages that work on desktop, tablets and smart phones.
• Create well-written JavaScript, as well as expanding current JavaScript code.
• Create and maintain web forms that integrate with our CRM.
• Assist with API integration for dynamic email/web prospect and customer communications.
• Translate designs and style guides provided by the UI/UX team into functional user interfaces, ensure cross-browser compatibility and performance.
• Create functional pages and banners from design mock-ups.
• Test code across platforms and browsers.
• Document work and communicate issues when they arise.
• Assist troubleshooting production issues.

Requirement:

• Associate degree in a technology-related field required (bachelor’s degree preferred).
• 3+ years of experience in front-end development in a start-up or similar work environment.
• 1+ experience with Front End frameworks such as Angular 2.0/React JS/React Native.
• Knowledge of web standards and accessibility (W3C and s508).
• Ability to create production-quality CSS, SASS, and HTML for web applications with support for mobile and tablet devices.
• Good understanding of web-based application architecture.
• Designing/coding to overcome browser/platform constraints.
• Excellent problem-solving skills and JavaScript Knowledge.
• Ability to learn new tasks outside immediate range of skills.
• Able to collaborate effectively with both technical and non-technical colleagues
• Deadline oriented and able to multi-task in a fast pace environment.
• Knowledge of unit test frameworks like karma, Jasmine, Mocha, Chai etc.