2+ Telephony Jobs in Delhi, NCR and Gurgaon | Telephony Job openings in Delhi, NCR and Gurgaon

1. Strong understanding of Android Architecture.
2. Expertise in background processing — Foreground Services, WorkManager/JobScheduler, retry mechanisms, and deep knowledge of key Android permissions (Record Audio, Phone State, Call Log, Notifications, Background Activity).
3. Practical hands-on experience with TelephonyManager, PhoneStateListener, and call-recording implementations for Android 10+. Telephony experience is mandatory.
4. Solid knowledge of Audio and Speech Processing, including real-time communication using WebSockets, chunked/streaming audio uploads, and secure token handling.

         5.have strong knowledge of Android Architecture development            and he's moslty done work on E-commerce & ERP app which             are basic apps to develop from logic part implementation 

Note — If the candidate has never worked on telephony → not a good match

      We are hiring an experienced, self-driven Android Developer who can independently design, build, and deploy a high-performance mobile application.

You will be responsible for the entire Android development lifecycle — architecture, coding, testing, performance optimization, CRM integrations (Salesforce, HubSpot, Zoho), telephony features, background services, and Play Store listing.

This role requires someone who takes full ownership and can deliver a fast, robust, error-free app without handholding.

Key Responsibilities

• Architect, develop, and deploy a full-scale Android application similar to runo.ai.
• Build high-performance UI/UX using Jetpack Compose / Material Design.
• Implement telephony-based features (in-app calling, call logs, call events etc.).
• Develop background services, notifications, and sync logic.
• Integrate the app with Salesforce, and other CRMs via APIs, OAuth2, JWT.
• Build data storage and offline capabilities using Room / SQLite.
• Optimize app performance, memory usage, and battery impact.
• Ensure zero-crash, stable, and scalable release across devices.
• Manage complete lifecycle: testing, debugging, publishing on Google Play Console.
• Work independently — plan, execute, troubleshoot, and deliver without supervision.
• Collaborate with backend teams to define API contracts and workflows.
• Implement secure coding, authentication flows, encryption, and data protection.
• Monitor crash analytics, logs, and push immediate fixes.

Required Skills

Android Development (Mandatory):

• Kotlin, Java
• Android SDK, Jetpack Libraries
• Jetpack Compose / XML
• MVVM or Clean Architecture
• Background Services, WorkManager, Notifications
• Room Database, SQLite
• Retrofit, WebSockets, REST APIs
• OAuth2, JWT-based Auth
• Play Store Release Management

Integration Experience:

• Salesforce REST API (highly preferred)
• CRM integrations: HubSpot / Zoho / FreshSales
• Authentication and token refresh flows

Other Must-Haves:

• Experience building and deploying production apps
• Ability to work without a manager / guide
• Strong debugging and performance optimization skills
• Experience with CI/CD, Git, crash reporting tools (Firebase Crashlytics)

Nice to Have

• Experience with CTI or calling apps
• Knowledge of VOIP, telecom APIs, call event listeners
• Knowledge of GraphQL
• Familiarity with real-time sync and message queues
• Experience with custom dialer apps, contact sync, call recording, etc.
• Exposure to publishing on Samsung Store / OEM stores

Soft Skills & Mindset

• Self-starter, works independently without micromanagement
• Strong problem-solver with ownership mindset
• Eye for clean UI, smooth interactions, and user experience
• Fast learner with ability to build POCs quickly
• Clear communication and ability to work in fast-paced environments

Job Overview:

We are seeking a talented Android Framework Engineer to join our development team at Primebook. As an android framework developer, you would be responsible for development, coding, testing and debugging of system features and system apps of PrimeOS, driving technical excellence, and shaping the direction of our products. You will work closely with our CTO to create cutting-edge features that meet user needs and business goals.

Key Responsibilities:

• Understand product requirements and translate them into technical requirements.
• Create secure and high-quality production level code that runs well with different android versions and devices with different screen sizes.
• Development and debugging of android framework components like SystemUI, PhoneWindowManager, Settings database etc.
• Should be capable of developing applications from scratch, debug and fix issues quickly when they are found.
• Collaborate with various teams (Product, Design & Testing) to develop and ship new features.
• Should be able to write scalable and efficient code for handling the load of 100k+ users.
• Ensure the best possible performance, quality, and responsiveness of the application, good knowledge of threads in android is necessary.
• Excellent debugging skills, including identifying memory leaks, performance bottlenecks, and using tools like ADB, proguard, etc

Qualifications:

• A “Bring It On” attitude; bias for action; self-driven, end-to-end ownership; entrepreneurial approach; focus on operational excellence; ability to work with ambiguity.
• B.tech degree in Computer Science or equivalent
• 3-5 years of experience with portfolio of work to show the skill set
• Should have developed at-least 2-3 android apps from scratch
• Experience in compiling AOSP and solving common build errors is a must have
• Should have experience working with SystemUI and android framework_base
• Excellent knowledge of Java, Kotlin, MVVM architecture
• Experience with popular libraries (Jetpack, Retrofit, Glide, OkHttp, Gson etc.)
• Experience with RESTful APIs to connect Android applications to backend services
• Must be good at building logics and working with data structures

Perks and Benefits:

Job type: On-site, 5 days a week

Industry Type: Computer Hardware Manufacturing

Functional Area: Testing And Development

Employment Type: Full Time, Permanent

Salary: Upto 20 Lacs (depends on skill)