Arab Kumar

Mobile Engineer

Bengaluru, Karnataka, India5 yrs 1 mo experience

AI EnabledAI ML Practitioner

Key Highlights

4+ years of experience in mobile engineering.
Expert in building scalable fintech applications.
Designed and operated a real-time multiplayer game.

Stackforce AI infers this person is a Fintech Mobile Engineer with expertise in scalable application development.

Contact

Skills

Core Skills

Mobile Product DevelopmentSystem ArchitectureProject ManagementMobile Application DevelopmentFlutter

Other Skills

KotlinKMMJetpack ComposeSystems DesignModel-View-Controller (MVC)RiverpodFirebaseGitREST APIsAdobe IllustratorfigmaInteractive AdvertisingData StructuresAlgorithmsLoans

About

I’m a mobile engineer with 4+ years of experience building and scaling production-grade applications across fintech and consumer platforms. I’ve worked on high-impact payment and lending systems at CRED and Uni Cards, owning architecture decisions, performance optimization, and release stability improvements. Outside of full-time roles, I built and operate a real-time multiplayer card game (Cabo) across Android, iOS, and Web. I designed the hybrid backend architecture, implemented monetization, and manage live production infrastructure and analytics independently. I’m particularly interested in product-focused engineering teams where I can take end-to-end ownership of systems and contribute long-term.

Experience

5 yrs 1 mo

Total Experience

1 yr 9 mos

Average Tenure

Current Experience

Cred

Mobile Engineer

Sep 2025 – Feb 2026 · 5 mos · Bengaluru · On-site

Worked on high-impact payment flows within CRED’s mobile platform, contributing to performance and reliability improvements in critical user journeys.
Led migration of the UPI scanner module from Flutter to native Jetpack Compose to reduce camera initialization latency and improve scan responsiveness.
Designed and implemented hybrid Flutter–native interoperability, ensuring seamless integration between cross-platform and native layers.
Contributed to architectural decisions impacting performance, stability, and maintainability in high-frequency payment flows.
Collaborated closely with platform and product teams to ship performance-sensitive features with strict reliability requirements.

KotlinKMMMobile Product DevelopmentSystem Architecture

Uni cards

3 roles

SDE 2

Dec 2024 – Aug 2025 · 8 mos

Owned and delivered key fintech features across lending and credit workflows, focusing on scalability, reliability, and maintainability.
Architected and led development of Fixed Deposits and multi-credit card support to enable scalable financial workflows.
Delivered lending features including personal loans and P2P lending as part of core revenue-generating initiatives.
Refactored and modularized the design system, improving UI scalability and reducing inconsistencies by 30%.
Increased release stability through unit and golden test coverage, reducing regression defects by 30%.
Improved developer velocity by driving architectural refinements and modular code organization.

Project ManagementSystems DesignSystem Architecture

Software Engineer

Promoted

Oct 2023 – Sep 2025 · 1 yr 11 mos

Owned architecture and delivery of Fixed Deposits and multi-credit card support, enabling scalable financial workflows and improving platform extensibility.
Delivered lending features including personal loans and P2P lending as part of core revenue-generating initiatives.
Refactored and modularized the design system, improving UI scalability and reducing visual inconsistencies by 30%.
Increased release stability by implementing unit and golden test coverage, reducing regression defects by 30%.
Improved developer velocity through modular architecture refinements and cross-team technical alignment.

System ArchitectureProject Management

SDE

Oct 2023 – Nov 2024 · 1 yr 1 mo

Contributed to the development and scaling of core credit workflows within a fintech mobile application.
Built and shipped production features across credit lifecycle flows.
Improved application maintainability using modular architecture and state management best practices.
Collaborated cross-functionally to align mobile implementation with backend and product requirements.

Model-View-Controller (MVC)RiverpodMobile Application Development

Fello

2 roles

Flutter Developer

Jun 2021 – Sep 2023 · 2 yrs 3 mos

Built and scaled a gamified investment platform integrating payments, skill-based games, and rewards to drive user engagement.
Designed and implemented a server-driven journey framework enabling dynamic UI flows and real-time API updates.
Established CI/CD pipelines for multi-flavor automated deployments, accelerating release cycles by 40%.
Optimized rendering and state management strategies to ensure smooth performance across complex animated interactions.
Contributed to performance improvements and release stability in production environments.

GitREST APIsMobile Application Development

Flutter Developer Intern

Mar 2021 – Jun 2021 · 3 mos

Adobe Illustratorfigma

Fello finance

Software Engineer

Jan 2021 – Oct 2023 · 2 yrs 9 mos

Built and scaled a gamified investment platform using Flutter and Firebase, integrating payments, skill-based games, and rewards to drive engagement.
Designed a server-driven journey framework enabling dynamic UI flows with real-time API updates and custom animations.
Established CI/CD pipelines for automated multi-flavor deployments, accelerating release cycles by 40%.
Optimized rendering pipelines and state management strategies to maintain smooth performance across complex animated interactions.

Mobile Application DevelopmentFlutter