ROSHAN REJI K
Bangalore Urban
Summary
Senior Mobile Software Engineer with 4+ years of experience delivering high-quality cross-platform mobile applications using React Native and TypeScript. Strong expertise in Test-Driven Development (TDD), secure API integrations with token-based authentication, and App Store & Play Store deployments. Experienced in Agile delivery, DevSecOps practices, and collaborating with senior architects to build scalable, secure, and maintainable mobile solutions.
Overview
4
4
years of professional experience
Work History
Senior Software Engineer
Cloudium Software
Kochi, India
04.2026 - Current
- Refactored and optimized the React Native codebase to improve performance, maintainability, and scalability.
- Reduced app startup time and JavaScript bundle size through performance tuning and code optimization.
- Built reusable components and enhanced application stability across iOS and Android.
- Worked with Datadog for application performance monitoring and crash analysis.
- Contributed to CircleCI-based CI/CD pipelines and collaborated with cross-functional teams to deliver production releases.
Senior Software Developer
Apps Team Technologies Pvt. Ltd.
Kochi, Kerala, India
11.2023 - Current
- Delivered production-ready mobile applications using React Native and TypeScript within defined scope, timeline, and quality standards.
- Followed Test-Driven Development (TDD) practices to ensure reliable, maintainable, and scalable codebases.
- Integrated mobile apps with secure backend APIs using token-based authentication (JWT-based systems).
- Collaborated with technical leads and architects to implement robust mobile architecture adhering to scalable design standards, utilizing React Native and TypeScript.
- Enhanced application performance and stability by approximately 30% through optimized component rendering and efficient state management.
- Implemented application designs aligned with long-term IT strategy and scalability objectives.
- Supported DevSecOps initiatives by contributing to CI/CD pipelines and secure release workflows.
- Actively participated in Agile ceremonies including sprint planning, reviews, and retrospectives using Jira.
Software Developer
CoStrategix
Bangalore, Karnataka, India
05.2022 - 11.2023
- Developed cross-platform mobile features using React Native following clean architecture practices.
- Integrated REST APIs and implemented secure authentication flows.
- Contributed to iterative software releases by implementing new features and resolving defects in an Agile development environment using React Native and TypeScript.
- Collaborated with QA and DevOps teams to improve release quality and operational efficiency.
Education
Bachelor's Degree - Computer Applications (BCA)
Kuvempu University
Shimoga01-2021
Skills
- React Native, Expo, TypeScript, React, Redux, Nodejs, Express, MongoDB, WebSockets
- Native Modules, Push Notifications, REST APIs, JSON Web Token (JWT)
- App Store & Play Store Publishing, Git, GitHub Actions, Jira for sprint planning and tracking
- Mobile Performance Optimization, Component-driven architecture, Reusable UI and design systems, Microservice-aware development, Fail-fast and iterative delivery approach
- Test-Driven Development (TDD), Unit, integration, and mobile testing strategies, CI/CD pipeline basics, Agile/Scrum methodologies, Secure build and release workflows, Scalable and maintainable code design
Timeline
Senior Software Engineer
Cloudium Software
04.2026 - Current
Senior Software Developer
Apps Team Technologies Pvt. Ltd.
11.2023 - Current
Software Developer
CoStrategix
05.2022 - 11.2023
Bachelor's Degree - Computer Applications (BCA)
Kuvempu University