Android Developer

Android Full-Stack Engineer

📍 Location: Remote

💼 Type: Full-Time

💰 Salary: $800 - $1,000 USD / month

📩 Apply Now at: https://forms.gle/1XrseYnbCUsJDDuTA

About Us

At Momenta, we're committed to creating a safer digital world by protecting individuals and businesses from voice-based fraud and scams. Through innovative AI technology and community collaboration, we're building a future where communication is secure and trustworthy.

Position Overview

We’re looking for an experienced Android Full-Stack Developer to help us bring our user-facing Android app to life. You’ll work closely with our design and engineering teams to build out our map-based UI and integrate key features that power voice scam detection and reporting.

Key Expectations

📌 End-to-End Android Client

• Take our existing codebase from prototype to production-grade
• Implement core features: secure login flows, background call listeners (VoIP/SIP), real-time UI feedback on fraud scores, and call history dashboards
• Optimize across devices for CPU, memory, battery, and low-latency audio processing
• Handle permissions, call audio capture, and background service behavior
• Launch and manage app distribution via Google Play

📌 Serverless Backend & API Development

• Design, build, and maintain AWS-based microservices using Lambda, API Gateway, DynamoDB, and S3
• Implement endpoints for audio streaming, ML model inference (via AWS SageMaker or custom endpoints), and event logging
• Define REST/WebSocket contracts and integrate with Twilio or SIP gateways for VoIP call control

📌 Performance, Security, and DevOps

• Ensure real-time responsiveness and scalable audio data processing
• Implement robust CI/CD pipelines using Git and Gradle
• Build secure auth flows using OAuth/token-based authentication
• Apply best practices in encryption, permissions, and Android security architecture

📌 Cross-Team Collaboration

• Work closely with our CTO and product team to align implementation with roadmap
• Provide clear technical insights, raise blockers, and proactively recommend solutions
• Document backend services and client workflows for maintainability

Required Skills & Qualifications

🎯 Android Expertise

• Kotlin & Java, Android Studio, Jetpack libraries (WorkManager, Room, LiveData)
• Material Design, custom views, background services, and VoIP call handling
• Experience launching Android apps on Google Play

🎯 Backend & DevOps Proficiency

• AWS Lambda, API Gateway, DynamoDB, S3
• Node.js, Python, or similar backend experience
• REST and WebSocket API development
• CI/CD pipelines, Git, Gradle, Serverless Framework

🎯 VoIP & Audio Experience

• Familiarity with SIP/WebRTC, call audio capture, Twilio integrations
• Experience with background audio services and event-driven processing

🎯 Security & API Design

• OAuth/token-based auth
• Secure mobile data handling and encryption in transit
• Android permission model and security best practices

🎯 Bonus

• Experience with AWS SageMaker or deploying custom ML endpoints
• Prior experience with real-time event processing or analytics in telecom or fraud detection

Why Join Momenta?

Work on a real product with a clear mission—protecting users from voice scamsShip a full-stack mobile experience that will be used globallyCollaborate directly with founders and see your work go liveRemote-first, builder-led team with deep focus on product delivery

🚀 Apply now and help shape the future of voice security

• Proficient in Kotlin
• Experience in MVVM Code architecture
• Understanding of using Jetpack libraries in Android
• Experience in RxJava techniques
• Capable of learning a new technology like Flutter
• Knowledge in Android app life cycle
• Have experience in Android app submission in PlayStore
• Ensure the performance, quality, and responsiveness of applications
• Proven software development experience and Android skills development
• Proven working experience in Android app development
• 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
• Solid understanding of the full mobile development life cycle

We are looking for a Flutter Developer responsible for creating multi-platform apps for iOS and Android using Google's Flutter development framework. The primary focus will be on creating new experiences and maintaining existing apps. Deep experience contributing to and managing high-scale production mobile apps. You must have strong previous experience in Flutter and Dart development.

Requirements :

• Good exposure to integration projects.

• Hands-on experience and expertise in Building interfaces with Android SDK, Android Studio and development.

• Rest Api knowledge.

• Expertise in Android Flutter.

• Passion for best design and coding practices and a desire to develop new creative ideas.

• Skills required teamwork, leadership, and self-motivated.

• Adaptive to learn any technology.

Responsibilities :

• Design and Build sophisticated and highly salable apps using Flutter.

• Collaborate with cross-functional teams to define, design, and ship new features.

• Work with outside data sources and APIs.

• Unit-test code for robustness, including edge cases, usability, and general reliability

• Work on bug fixing and improving application performance

• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

Responsibilities:

- Develop and maintain high-quality mobile applications using React Native.

- Collaborate with cross-functional teams to gather requirements and translate them into high-level designs.

- Write clean, reusable, and well-structured code following industry best practices and coding standards.

- Conduct code reviews and provide constructive feedback to ensure code quality and adherence to standards.

- Mentor and guide junior developers, providing technical expertise and promoting professional growth.

- Collaborate with backend developers to integrate APIs and ensure smooth data flow between the app and server.

- Stay updated with the latest trends and advancements in React Native and mobile app development.

- Work in a 10 AM to 6 PM, six-day office role, maintaining regular attendance and punctuality.

Required Skills and Qualifications:

- Strong proficiency in React Native development.

- Experience with Redux or similar state management libraries.

- Proficiency in integrating APIs and working with backend services.

- Sound knowledge of JavaScript, ES6+, and modern web technologies.

- Familiarity with Git version control system and agile development methodologies.

- Good problem-solving and debugging skills.

- Excellent communication and teamwork abilities.

- Bachelor's degree in Computer Science or a related field (preferred).

Join Arroz Technology Private Limited as a React Native App Developer and be part of an innovative team driving the development of cutting-edge mobile applications. This role offers competitive compensation and growth opportunities within a dynamic work environment.

WillyWeather is a feature rich weather website and mobile app that beautifully delivers the most accurate local weather data from best in class data sources. Going beyond the average weather service, we process and fine-tune forecasts to the specific coordinates of over 45,000 Australian locations.

WillyWeather has a loyal user base of over 3 million Australians each month. We have launched in the UK and US, and are on track to be the leading provider of local weather services worldwide.

WillyWeather operates through a http://www.willyweather.com.au?campaign=jobs">website, an https://itunes.apple.com/au/app/willyweather/id592978502">iPhone app and an https://play.google.com/store/apps/details?id=au.com.willyweather">Android app. The Android app has an average rating of 4.7☆ from around 7.8K users.

We are looking for an experienced and highly motivated Senior Android Developer to join our team for a full time permanent position. The successful candidate will be working remotely, and will be provided with a laptop to be able to work from home. This is an exciting opportunity to showcase your exceptional Android skills within an international team of talented and passionate people working collaboratively on a high-quality product. 

Responsibilities:

• Manage and oversee a project from the conceptual phase to the deployment phase
• Technical leadership
• Software development
• Code reviews

Technical Requirements:

• Android SDK
• Java
• Kotlin
• JUnit

Skills and Experience:

• English speaker
• Computer Science degree or similar
• 4+ years’ Android experience
• At least one app currently published and live on the Google Play store
• Experience with Android Widgets
• Understanding of Google’s Android design principles and interface guidelines
• Experience crafting pixel-perfect user interfaces with complex interactions and animation
• Experience with Google Maps API
• Test driven development
• Passion for delivering well designed high quality software
• Knowledge of OOP, design and architectural patterns such as MVC
• Excellent communication and documentation skills
• Ability to self-manage and work autonomously in a collaborative environment

• Full-stack developer with extensive knowledge of software development and agile methodologies, building native applications using JavaScript, and a portfolio of apps already published in-app store or self-hosted.
• Minimum 2-3 years experience working on Flutter projects/products.
• Good to have Healthcare domain experience.
• Ability to clearly understand requirements and translate them to software.
• Review business requirements, identify gaps, and assist in authoring functional design documents.
• Analytical mind with problem-solving aptitude.
• Proactive and self-starter requiring minimal supervision, who can collaborate with multiple stakeholders in the company.
• Good to have or awareness of Artificial Intelligence and Machine Learning algorithms and Python framework.
• Proficiency in relational databases like SQL Server and Oracle.
• Knowledge of cloud technologies (AWS, Azure, Google cloud), container, and virtualization will be a big plus.
• Familiarity with Continuous integration (Jenkins/Hudson), automated testing, and version control (GitHub, SVN).
• Knowledge of 3 rd party libraries and APIs, modern frameworks and design patterns, and test automation tools for Unit and Performance testing.
• Awareness of secure coding practices and standards. Page 2 of 3 Above all, you should love to build and ship products that real people use every day!

Roles and responsibilities:

• An ideal candidate will exhibit the following traits:
• Adapt and work on distributed technology stacks.
• Work with BAs to define or elaborate business software requirements.
• Design and build responsive and usable interface (UI/UX) for mobile applications through appealing, visual design.
• Take ownership of product features and work closely with stakeholders to ideate and rapidly release minimum viable product or mobile app solutions across healthcare products.
• Extensive experience with SDLC phases including Agile methodologies.
• Assist in designing client-side and server-side architecture.
• Perform code reviews, validation, and verification testing.
• Knows the use of version control software (GIT).
• Document technical design and unit test plans.
• Must have experience in working with multiple & small teams.
• Evaluate security and regulatory requirements.
• Proactively communicate in providing status reports and report blockers.
• Debug code, solve incidents and defects.
• Develop well-managed, high-quality, scalable, and reusable code.
• Should have excellent English (both verbal and written) skills.
• Should have excellent interaction and client communication skills.
• Solve technical challenges and take pride in their solutions and code.

Advantageous

• Java/Swift experience
• Understanding of Android Keyboard API
• Experience with optimizing applications for better performance and response

• Ionic: Ionic is a free and open-source framework certified by MIT that enables developers to use modern web technologies like HTML5, CSS3, and JavaScript. ...
• React Native: ...
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• jQuery Mobile: ...
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