Senior Backend Developer(SDE2)

Position: Senior Android Developer

Experience: 5+ Years

Location: Gurugram

Employment Type: Full-Time

Work Mode: Onsite

About the Role

We are looking for a highly skilled and experienced Android Developer with 5+ years of strong hands-on experience in Android application development. This role will involve designing, developing, maintaining, and enhancing high-quality Android mobile applications. Strong expertise in Android development, application architecture, API integration, debugging, performance optimization, and production deployment.

Mandatory Skills & Experience

·       5+ years of professional experience in Android application development.

·       Strong hands-on Android development experience is mandatory.

·       Strong proficiency in Kotlin and/or Java.

·       Strong understanding of the Android SDK, Android Studio, Android application lifecycle, UI components, layouts, and navigation.

·       Experience developing and deploying production applications on the Google Play Store.

·       Strong experience with REST APIs, JSON, API integration, and third-party SDK integration.

·       Good understanding of mobile application architecture and design patterns.

·       Experience with Git and modern version-control practices.

·       Strong debugging, troubleshooting, and problem-solving capabilities.

·       Good working knowledge of React Native is required.

·       Ability to understand, debug, maintain, and contribute to an existing React Native codebase.

·       Good understanding of React Native components, navigation, API integration, and state management.

Key Responsibilities

·       Design, develop, test, and maintain scalable and high-performance Android applications.

·       Take complete ownership of Android application development from requirement analysis to production deployment.

·       Develop clean, maintainable, reusable, and efficient code following Android development best practices.

·       Integrate REST APIs, third-party APIs, SDKs, payment gateways, push notifications, analytics, and other mobile services.

·       Troubleshoot and resolve application crashes, performance issues, memory leaks, UI issues, and other production problems.

·       Perform code reviews and contribute to improving development standards and engineering practices.

·       Optimize applications for performance, scalability, security, responsiveness, and reliability.

·       Implement new features and enhancements based on business and product requirements.

·       Work with existing React Native applications and contribute to feature development and maintenance when required.

• Experience working on SaaS, enterprise, or large-scale mobile applications.
• Understanding of Agile/Scrum development methodologies.

·       Experience working on both Android and iOS applications.

• Experience integrating payment gateways and third-party SDKs.

Design, develop, and maintain high-performance Android applications using Kotlin (Java knowledge preferred). Integrate REST APIs, Firebase, WebSockets, payment gateways, and third-party services while implementing secure authentication (OTP, JWT, OAuth) and role-based access control. Optimize application performance, security, scalability, and manage Play Store releases. Experience with Git, cloud platforms (AWS/GCP), and API security best practices is essential. Exposure to real-time applications (ride-hailing, delivery, chat), CI/CD, Docker, and WhatsApp Business API is an advantage. Candidates should possess strong analytical, debugging, communication, and problem-solving skills with the ability to work independently in a fast-paced startup environment.

Build Products. Solve Real Problems. Grow with Us.

Are you passionate about building scalable applications, solving complex engineering challenges, and working with modern technologies?

At NonStop io Technologies, we're looking for a talented Java Developer who enjoys creating high-quality software, collaborating with smart teams, and continuously learning new technologies.

This isn't just another development role. You'll work on real-world products, modern architectures, cloud technologies, AI-powered development tools, and systems that impact businesses and users every day.

If you're someone who loves writing clean code, takes ownership of your work, and wants to grow into a strong technical contributor or future tech lead, we'd love to connect with you.

About NonStop io Technologies

NonStop io Technologies is a product engineering company with 10+ years of experience building web and mobile applications for startups and enterprises.

We're a team of passionate engineers who believe in:

• Building products, not just projects
• Continuous learning and innovation
• Engineering excellence and quality delivery
• Long-term ownership and customer success
• Collaboration, transparency, and growth

Our engineers don't just execute tasks, contribute ideas, influence architecture decisions, and help shape products from concept to scale.

What You'll Be Working On

• Designing and developing scalable backend applications using Java and Spring Boot
• Building REST APIs and Microservices
• Working on cloud-ready applications and distributed systems
• Collaborating with product managers, designers, and engineers
• Improving application performance, scalability, and reliability
• Contributing to architecture and technical design discussions
• Leveraging AI-powered development tools to enhance productivity
• Working with CI/CD pipelines and modern software engineering practices.

Skills We're Looking For

Must Have

• 3–6 years of experience in Java development(Min 3 Years)
• Strong expertise in Java, Spring Boot, Spring MVC, and Hibernate/JPA
• Experience building Microservices and REST APIs
• Strong understanding of OOP, Design Patterns, and Clean Coding Practices
• Experience with MySQL or PostgreSQL
• Working knowledge of Git
• Hands-on experience with Frontend Technologies (HTML, CSS, JavaScript, React/Angular)
• Experience with Maven or Gradle

Good to Have

• Experience with AWS or cloud environments
• Exposure to CI/CD pipelines and DevOps practices
• Experience with distributed systems and scalable architectures
• Knowledge of automated testing frameworks
• Familiarity with AI-assisted development tools such as GitHub Copilot

Why Developers Love Working With Us

• Work on real products with real impact
• Opportunity to work on modern architectures and cloud technologies
• Exposure to AI-powered software development practices
• Learn directly from experienced engineers and architects
• Friendly, collaborative, and growth-oriented culture
• Freedom to experiment, innovate, and share ideas
• Continuous learning and career growth opportunities
• Work with a team that values ownership, trust, and engineering excellence

Interested in Joining Our Team?

We're always excited to connect with developers who are curious, driven, and passionate about technology.

If you enjoy building quality software, learning new technologies, and taking ownership of your work, this could be the right opportunity for you.

We look forward to connecting with you!

Our vision is simple: Turning Reels into opportunities for the growth of the world.

InSeconds is building a new kind of social platform for founders, builders, and ambitious people. We are rethinking how people discover ideas, founders, businesses, opportunities, and the people behind them through short-form content.

We are at a very early stage  building from the ground up with a small founding team.

Think about what it would have been like to join the early team at Facebook, Instagram, or any great consumer product before everything was figured out.

That's the stage we're at.

There is no massive engineering team, no perfectly defined roadmap, and no hundred-page documentation telling you what to do. There is a blank canvas, a big vision, and an opportunity to build something that can matter.

Build the Android Product

• Build the InSeconds Android application from scratch using Kotlin.
• Develop and ship core product experiences across the application.
• Build reusable, scalable and high-quality Android components.
• Translate product ideas and designs into intuitive mobile experiences.

Own the Architecture

• Take ownership of the Android application's architecture and technical decisions.
• Build a clean, scalable and maintainable codebase.
• Work with modern Android development practices, including Jetpack Compose, Coroutines and modern architecture patterns.
• Make thoughtful decisions around performance, state management and data handling.

APIs & Integrations

• Integrate backend APIs and services.
• Implement authentication, user profiles, content feeds, opportunities, connections, messaging and other core functionality.
• Work closely with the backend team to build and integrate APIs.
• Implement notifications, analytics and other native Android capabilities.
• .

What We're Looking For

• Strong experience with Kotlin and Android development.
• Good understanding of Android fundamentals and application lifecycle.
• Experience with Jetpack Compose.
• Strong understanding of APIs and mobile-backend integration.
• Experience with Kotlin Coroutines / Flow.
• Understanding of application architecture such as MVVM / Clean Architecture.
• Experience with Git/GitHub and modern development workflows.
• Strong debugging and problem-solving ability.
• Ability to work independently and make technical decisions.
• Someone who has built and shipped an Android application.

Most importantly:

We want a builder.

1.Candidates should have experience in design and develop high-volume applications for delivering

high-availability and performance.

2. Write Well designed, testable and efficient code.

3. Ensure designs are in compliance with specifications.

4. Prepare and produce releases of software components.

5. Support continuous improvement by investigating alternatives and technologies for the

architectural review.

6. Should be highly motivated in both solo and team situations by contributing to a great team spirit.

7. Desire and drive to take an active role in improving the end product

8. Should have strong knowledge of client server interaction, good understanding of REST

architecture

SKILLS REQUIRED