

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

About Momenta
About
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.
Candid answers by the company
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.
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The Role |
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Requirements: Attributes, Experience |
· 4 to 7 Yrs experience. · Strong knowledge of Restful Apis · Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes · Good grasp of data structures and algorithms. · Familiarity with RESTful APIs to connect Android applications to back-end services · Strong knowledge of Android UI design principles, patterns, and best practices · Familiarity with cloud message APIs and push notifications · Detail-oriented, proactive and self-motivated. · Team player with ability to work effectively. |
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It all starts with an open culture and working environment with lots of transparency and freedom. Our bosses don’t sit in cabins, no one does. Our diaries are open so everyone can see what the other is doing… |
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Academics |
B.Tech / B.E. |
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Position Reports to |
Technology Head |

