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Android Full-Stack Developer
Android Full-Stack Developer
Momenta's logo

Android Full-Stack Developer

Rei Tsunemi's profile picture
Posted by Rei Tsunemi
2 - 16 yrs
₹8L - ₹10L / yr
Remote only
Skills
skill iconKotlin
skill iconJava
skill iconAndroid Development
Voice Over IP (VoIP)
AWS Lambda
RESTful APIs
Web Realtime Communication (WebRTC)

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

Read more
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Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
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About Momenta

Founded :
2024
Type :
Product
Size :
0-20
Stage :
Bootstrapped

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.

Read more

Candid answers by the company

What does the company do?
What is the location preference of jobs?

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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Company Profile

 

Flora2000 was established in 1999 by Mr. Rehan Yar Khan (Founder & CEO) as an online floral & gift retailer and extended its delivery services across the globe. It is the leader and pioneer of the concept of flowers and gifts in over 190 countries worldwide. Flora2000 passionately strives to be the largest premium-gifting leader with flowers, gifts, cakes being the core verticals driven by people first approach and innovation in all spheres of business.

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The current team comprises of 15 people.

We have offices in Mumbai, Europe & UAE.

Please visit Flora2000.com for more information

 

 





The Role


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          Strong knowledge of Flutter.

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A great career

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Our work culture

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Academics

B.Tech / B.E.

 

 

Position Reports to

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Shubham Vishwakarma

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I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
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