11+ PSTN Jobs in Delhi, NCR and Gurgaon | PSTN Job openings in Delhi, NCR and Gurgaon

About Us 

Rezo.ai is an AI-Powered Contact Centre that enables enterprises to enhance customer experience and boost revenue by automating and analyzing customer agent interactions across multiple channels including voice, email, chat/WhatsApp, and social, at the required scale, whilst training agents with minimal costs 

How do we do it 

Rezo’s AI-Powered contact center leverages ground-breaking technologies in AI, ML, ASR, NLP, RPA, and predictive intelligence to transform customer experience and reduce costs by automating, and analyzing social media, whilst coaching them. 

Job Description

• Preference would be given to having experience in IVR and Call Center application development.
• Hands-on experience in Kamailio SIP Server
• Hands-on experience in WEBRTC
• Asterisk integration with PSTN is preferred.
• Asterisk integration with Database (MySQL and MSSQL) with knowledge of queries and stored procedures.
• Scripting with Shell, Perl.
• Experience in installing Hosted VoIP
• 
  Nice to have
• Good knowledge of SIP and IAX.
• MySQL and Telephony Domain.
• Ability to test and troubleshoot Asterisk applications/issues
• Knowledge of C programming in Asterisk

Qualifications

Candidate Profile
The candidate must have:

• 2 - 4 years of experience working on the Asterisk platform.
• Strong Knowledge of PBX, SIP, and RTP protocols.
• Strong knowledge of multi-asterisk server architecture
• Sound knowledge of Asterisk Dial-plan, Asterisk Gateway Interface and Asterisk Manager Interface.
• Worked on Queue, IVR and Voicemail-related applications.
• Expert in Asterisk installation, configuration and troubleshooting.
• Expert knowledge of installing and configuring Asterisk with PSTN card.
• R & D skills in Asterisk.
• Experienced with Linux (LAMP) servers (Centos, Apache, MySQL, PHP)

Review Criteria:

• Strong MLOps profile
• 8+ years of DevOps experience and 4+ years in MLOps / ML pipeline automation and production deployments
• 4+ years hands-on experience in Apache Airflow / MWAA managing workflow orchestration in production
• 4+ years hands-on experience in Apache Spark (EMR / Glue / managed or self-hosted) for distributed computation
• Must have strong hands-on experience across key AWS services including EKS/ECS/Fargate, Lambda, Kinesis, Athena/Redshift, S3, and CloudWatch
• Must have hands-on Python for pipeline & automation development
• 4+ years of experience in AWS cloud, with recent companies
• (Company) - Product companies preferred; Exception for service company candidates with strong MLOps + AWS depth

Preferred:

• Hands-on in Docker deployments for ML workflows on EKS / ECS
• Experience with ML observability (data drift / model drift / performance monitoring / alerting) using CloudWatch / Grafana / Prometheus / OpenSearch.
• Experience with CI / CD / CT using GitHub Actions / Jenkins.
• Experience with JupyterHub/Notebooks, Linux, scripting, and metadata tracking for ML lifecycle.
• Understanding of ML frameworks (TensorFlow / PyTorch) for deployment scenarios.

Job Specific Criteria:

• CV Attachment is mandatory
• Please provide CTC Breakup (Fixed + Variable)?
• Are you okay for F2F round?
• Have candidate filled the google form?

Role & Responsibilities:

We are looking for a Senior MLOps Engineer with 8+ years of experience building and managing production-grade ML platforms and pipelines. The ideal candidate will have strong expertise across AWS, Airflow/MWAA, Apache Spark, Kubernetes (EKS), and automation of ML lifecycle workflows. You will work closely with data science, data engineering, and platform teams to operationalize and scale ML models in production.

Key Responsibilities:

• Design and manage cloud-native ML platforms supporting training, inference, and model lifecycle automation.
• Build ML/ETL pipelines using Apache Airflow / AWS MWAA and distributed data workflows using Apache Spark (EMR/Glue).
• Containerize and deploy ML workloads using Docker, EKS, ECS/Fargate, and Lambda.
• Develop CI/CT/CD pipelines integrating model validation, automated training, testing, and deployment.
• Implement ML observability: model drift, data drift, performance monitoring, and alerting using CloudWatch, Grafana, Prometheus.
• Ensure data governance, versioning, metadata tracking, reproducibility, and secure data pipelines.
• Collaborate with data scientists to productionize notebooks, experiments, and model deployments.

Ideal Candidate:

• 8+ years in MLOps/DevOps with strong ML pipeline experience.
• Strong hands-on experience with AWS:
• Compute/Orchestration: EKS, ECS, EC2, Lambda
• Data: EMR, Glue, S3, Redshift, RDS, Athena, Kinesis
• Workflow: MWAA/Airflow, Step Functions
• Monitoring: CloudWatch, OpenSearch, Grafana
• Strong Python skills and familiarity with ML frameworks (TensorFlow/PyTorch/Scikit-learn).
• Expertise with Docker, Kubernetes, Git, CI/CD tools (GitHub Actions/Jenkins).
• Strong Linux, scripting, and troubleshooting skills.
• Experience enabling reproducible ML environments using Jupyter Hub and containerized development workflows.

Education:

• Master’s degree in computer science, Machine Learning, Data Engineering, or related field. 

About the Role

We are looking for a highly skilled and experienced Senior React Native Developer with backend experience to join our team and lead the development of our cross-platform mobile application and its supporting backend services. You'll play a pivotal role in building, launching, and scaling a high-performance app that runs seamlessly on both iOS and Android — all from a single codebase — while also architecting and maintaining robust backend infrastructure in Node.js.

If you're passionate about mobile technologies, experienced in backend systems, and excited about building high-quality products from the ground up, we’d love to hear from you Responsibilities

• Lead the end-to-end development of a cross-platform mobile application using React Native.
• Build and maintain backend services and APIs using Node.js, ensuring scalability and performance.
• Collaborate with product managers, designers, and other engineers to deliver intuitive and seamless user experiences.
• Design and implement secure, reusable, and modular components (both frontend and backend).
• Optimize app and API performance across a wide range of devices and platforms.
• Ensure app and backend compliance with modern security, performance, and design standards.
• Set up and manage CI/CD pipelines for both frontend and backend (e.g., Fastlane, EAS, GitHub Actions).
• Integrate third-party APIs, services, analytics, push notifications, and more.
• Manage app store submissions and backend deployments.
• Mentor junior developers and contribute to establishing mobile and backend development best practices.

Requirements

Must-Have:

• 5+ years of experience in full-stack or mobile application development.
• 3+ years of hands-on experience with React Native.
• 2+ years of experience working with Node.js for backend development.
• Strong understanding of JavaScript (ES6+), TypeScript, and modern React architecture.
• Experience designing and integrating RESTful APIs, managing authentication, and handling network issues.
• Deep knowledge of mobile app development lifecycle for both iOS and Android.
• Familiarity with native build tools (Xcode, Android Studio).
• Solid grasp of mobile UI/UX principles and performance optimization techniques.
• Proficiency with Git, GitHub/GitLab, and agile workflows.
• Experience with features like push notifications, deep linking, in-app purchases, and analytics SDKs.

Preferred:

• Experience with Expo or EAS for managed workflows.
• Knowledge of CI/CD tools (Fastlane, Bitrise, GitHub Actions, etc.).
• Exposure to native modules (Objective-C/Swift and Java/Kotlin).
• Familiarity with automated testing frameworks (Jest, Detox, etc.).
• Experience publishing apps to the App Store and Google Play.
• Prior experience in startups or high-growth product environments.
• Working knowledge of databases (e.g., MongoDB, PostgreSQL) and cloud infrastructure (e.g., AWS, Firebase).

What We Offer

• Opportunity to lead and build a product end-to-end — frontend and backend.
• Work with a dynamic, high-performing team in a fast-paced, collaborative environment.
• Remote-first culture with flexible working hours.
• Competitive salary and equity options (if applicable).
• Dedicated learning and development budget to help you grow.

Hrim is an innovation company with a vision to create and power meaningful action across the globe. The organisation delivers its innovation through its Ideation, Design & Build Services. Hrim’s ideation service materialises visions of leaders and companies into standout concepts. The design and build service propels concepts into tangible reality in the form of ventures, initiatives, services etc.

Job Description:

As the Build Lead specialising in Technology at Hrim, paralleling the role of a Head of Technology in a technology startup, your role is critical in translating innovative concepts into real-world technological solutions. This position requires a unique combination of technical mastery, strategic foresight, and leadership skills to take 0-1 build to success. You will be at the helm of developing and executing technology projects from their nascent stages to full-fledged operational status.

In this key role, you will oversee the entire lifecycle of our technology initiatives, spearheading it from concept asset development to market launch. Your responsibilities will be multifaceted, encompassing strategic planning and hands-on management of the technology ventures. Your leadership will be instrumental in evolving the concepts into fully operational, market-ready technologies. 

Key Responsibilities

Project Development from 0 to 1:

• Lead the development of new technology projects at Hrim from conception (0) to launch (1).
• Utilize coding and technical expertise to create robust, scalable assets for the projects
• Oversee the entire project lifecycle, ensuring that technical objectives and timelines are met.

Technical Leadership and Team Management:

• Spearhead  technical build of the concepts and lead the associated team on the project
• Manage resource allocation, project scheduling, and workflow to optimize team performance.

Technology Strategy and Innovation:

• Stay abreast of emerging technologies and industry trends to inform innovation at Hrim
• Collaborate with cross-functional team members to ensure technology alignment with business goals.

Quality Assurance and Best Practices:

• Ensure the highest quality of code and implementation of best practices in software development.
• Conduct code reviews and oversee testing procedures to ensure reliability and efficiency of applications.
• Address technical issues and challenges promptly, ensuring minimal impact on project timelines.

Requirements & Qualifications

Educational Background:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field. Advanced degrees or certifications in technology-related disciplines are a plus.

Technical Expertise:

• Proficiency in one or more programming languages such as Python, Java, C++, JavaScript, or similar, with a strong understanding of software development principles.
• Demonstrated experience with full-stack development, including both front-end and back-end technologies.
• Knowledge of database management and experience with SQL or NoSQL databases.
• Familiarity with cloud computing platforms (e.g., AWS, Azure, Google Cloud) and understanding of scalable architecture design.

Experience in Project Development:

• 5 years of experience in technology development, with a significant portion dedicated to building projects from concept (0) to launch (1).
• Demonstrated ability to lead technology projects and oversee all stages of development, from ideation to deployment.
• Proven track record in delivering complex software projects on time and within budget.

Leadership and Team Management:

• Strong leadership skills with experience managing and mentoring a team of software developers and engineers.
• Ability to foster a collaborative environment and demonstrate innovation and creativity. 
• Experience in resource planning, project scheduling, and agile methodologies.

Problem-Solving and Innovation:

• Excellent problem-solving skills with a focus on innovative solutions and continuous improvement.
• Ability to anticipate challenges and proactively address potential issues in the development process.
• A knack for translating complex technical concepts into practical, real-world applications.

Communication and Collaboration:

• Strong communication skills, capable of effectively articulating technical concepts to both technical and non-technical stakeholders.
• Experience collaborating with cross-functional teams, including product managers, designers, and business analysts.
• Ability to clearly document and present project progress and outcomes.

Adaptability and Continuous Learning:

• Commitment to staying up-to-date with emerging technologies and industry trends.
• Willingness to adapt and learn new programming languages or technologies as required by project needs.
• Enthusiasm for tackling new challenges and the ability to learn quickly in a fast-paced environment.

JOB SYNOPSIS

We are looking for an SMO - Manager to manage all Social Media Marketing activities. You will be responsible for managing all SMO activities on all Social Channels to increase leads, traffic & brand awareness.

JOB RESPONSIBILITIES

• Responsible for the successful management of digital strategy.
• Developing and implementing strategies for companies’ social media sites focusing on Facebook, Twitter, Instagram, LinkedIn, YouTube etc.
• Knowing what type of content works best on what platform, optimizing content accordingly.
• Create engaging and professional visuals/ content optimized for the platform used and intended audience.
• Blogging, creating social media profiles, and managing regular posts.
• Gain followers, and create a positive image for the company.
• Stay abreast with upcoming social media trends and tools- including attending networking and educational events, reading blogs, and listening to podcasts.
• Analyze and report social media actions and campaigns on a monthly basis for new opportunities.
• Manage and facilitate social media communities by responding to social media posts and developing discussions.
• Perform research on current benchmark trends and audience preferences.
• Monitor trends, activities of main competitors on social media.
• Understanding of Google Analytics or any tool & review their Promotion /performance, bounce rate etc.
• Any Automation Tool Experience [ like Hootsuite]
• Group promotion on various social media channels

JOB REQUIREMENTS

• 2-5 years of experience as a social strategist or similar role
• Up-to-date with the latest trends and best practices in SMO
• Developing and implementing social media strategies for the websites
• Managing profiles and pages on social networking sites including Facebook, Twitter, LinkedIn and other community sites.
• Posting content on relevant blogs/forums and seeding content into social applications as and when needed.
• Monitoring and reporting usage statistics and other relevant data.
• Keeping a check on the emerging trends and industry standards in social media.
• Conducting research and recommending new social media platforms and opportunities.
• Increasing the number of fans, followers on social media networks.
• Website analysis using a variety of analytics tools including Google Analytics as well as internal reporting tools
• Excellent Written Skills
• Can Create Videos/ GIF / Social media Captions to understand key challenges faced by Client
• Strong organizational, time management, and analytical skills
• Team player

• Deciding accessories for models in photo shoots
• Product styling
• Campaign styling
• Catalogue Styling
• Arranging props for shoots
• Developing mood boards

What you need to have:

• Minimum experience of 2 years in catalogue and campaign shoots
• Ability to imbibe good time management and multi-tasking skills    

What we're looking for 

AdPushup is an award-winning ad revenue optimization platform and Google Certified Publishing Partner (GCPP), helping hundreds of web publishers grow their revenue using cutting-edge technology, premium demand partnerships, and proven ad ops expertise. Our team is a mix of engineers, marketers, product evangelists, and customer success specialists, united by a common goal of helping publishers succeed. We have a work culture that values expertise, ownership, and a collaborative spirit. 

Your Day-to-Day Tasks Include: 

Ship product, independently and/or as part of a small team 

Collaborate with other engineers to build new features 

Debugging using dev consoles, firebug, firecookie, or any of your favorite tools. Help troubleshoot production issues and resolve critical customer facing issues Provide top-notch support to our customers 

You Should Have: 

3+ years of experience with React. 

A strong body of prior front end work, including significant projects written in React and Redux. Mastery of JavaScript; expertise in most of the following technologies, and proficiency in all of them: CSS3, HTML5, AJAX. 

Deep understanding of closures, prototypal inheritance, HTTP, web security, cross browser compatibility challenges. 

Experience with NodeJS and Express JS will be a plus 

Hands-on with a code management system like GIT, SVN. 

Experience with NoSQL databases, preferably CouchDB or CouchBase. 

Good to have: Experience with Typescript.