11+ PSTN Jobs in India

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)

About the Role

We are looking for an experienced Senior Backend Developer to design and build scalable, secure, and high-performance backend systems. The ideal candidate will have deep expertise in Python/Django, microservices architecture, and cloud technologies, along with strong problem-solving skills and leadership capabilities.

Key Responsibilities

•Design and develop backend services using Django and Python.

•Architect and implement microservices-based solutions for scalability and maintainability.

•Work with PostgreSQL and Redis for efficient data storage and caching.

•Build and maintain RESTful APIs and ensure robust API design principles.

•Implement system design best practices for high availability and fault tolerance.

•Containerize applications using Docker and manage deployments with Kubernetes.

•Integrate with cloud platforms (AWS/Azure) for hosting and infrastructure management.

•Apply security best practices to protect data and application integrity.

•Collaborate with frontend, QA, and DevOps teams for seamless delivery.

•Mentor junior developers and conduct code reviews to maintain quality standards.

Required Skills & Expertise

•Django/Python – Advanced proficiency in backend development.

•Microservices Architecture – Strong understanding of distributed systems.

•PostgreSQL & Redis – Expertise in relational and in-memory databases.

•Docker/Kubernetes – Hands-on experience with containerization and orchestration.

•API Design & System Design – Ability to design scalable and secure systems.

•Cloud (AWS/Azure) – Practical experience with cloud services and deployments.

•Security Best Practices – Knowledge of authentication, authorization, and data protection.

Preferred Qualifications

•Experience with CI/CD pipelines and DevOps practices.

•Familiarity with message queues (e.g., RabbitMQ, Kafka).

•Exposure to monitoring tools (Prometheus, Grafana).

What We Offer

•Competitive salary and benefits.

•Opportunity to work on cutting-edge backend technologies.

•Collaborative and growth-oriented work environment.

Key Responsibilities:

• Development of a Single Page Application (SPA) and it's components in Typescript: deployed and optimized for progressive mobile and browsers using Angular 2 and Ionic 2 frameworks.
• Creating custom, general use modules and smart components which extend the elements and modules of core Angular framework.
• Creating self-contained, reusable, and testable modules and components in Typescript and using responsive HTML and CSS.
• Architecting and automating the build process for production, using task runners or scripts.
• Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed

Skills and Qualifications:

• Should have experience with CSS 3, SCSS, Java script and HTML5.
• Full-time knowledge of Angular practices and commonly used modules based on extensive work experience. Or 2 Year or more experience with other industry-leading frameworks like React.
• Minimum 1-year experience in working and extending one of the CSS or UI frameworks like Ng-lightening, Angular-material

Education:

• BE / BTech / MCA

Qualifications:

BTech/BE in computer science, electrical, electronics or related fields 5+ years of full stack design and development experience High emotional intelligence, empathy and collaborative approach. Experience in Angular Javascript frameworks, CSS, HTML5, NodeJS, ExpressJS, MongoDB to handle full stack web development. Experience with developing rich dynamic front end applications using Angular and CSS frameworks like BulmaCSS, Angular Material, Bootstrap, etc. Knowledge of GraphQL would be an added advantage. Knowledge of Cloud services like AWS, Heroku, Azure is preferable. Should be a quick learner to keep up with the pace of the ever changing world of technology as the candidate will get excellent exposure to the latest and trending Cloud based Saas technologies and best practices while working with varied customers based across the globe.

Responsibilities:

Develop web applications covering end to end software development life cycle right from writing UI code using Angular to backend API code using NodeJS and managing databases like MongoDB, MySQL, etc. Involved in full stack code management from Git check-ins to running automated builds and deployments using DevOps practices to deploy to public cloud services like AWS, Azure, Heroku, etc. Handling full-stack web development workflow right from front end to backend to CI/CD workflows. Design and Develop the tech architecture and work closely with CEO and CTO of the company Drive and guide with work of other engineers on the team

This is a leadership role and candidate is expected to wear multiple technical hats including customer interactions and investor discussions

PHP Developer SKILLS & Responsibilities:

Extensive experience in PHP and Laravel.
Database Management tools such as MySQL.
The candidate has worked on the web application or REST API for apps, Laravel, Node Js.Has experience or can work in a team as well as a single person.
Experience building or maintaining a CMS.

About us:

GaragePlug is an all-in-one cloud platform that redefines a customer’s journey with automotive service businesses. GaragePlug harnesses the power of digitalization to help automotive service businesses achieve immense operational efficiency and build a highly impressionable customer experience that is sure to win any customer. GaragePlug aims to bring technological disruption to the automotive after-sales service & repair industry by taking the industry one step closer to the future. Currently, GaragePlug is trusted by hundreds of brands across 15+ countries and continues to expand across the world!

Experience:

At least 10 years of experience.

Consultant Role Description:

• Tech Lead with strong Expertise in Core Java & Spring boot.
• Hands-on in developing Microservices, Eureka service registry, and Docker, make use of OAuth for API Auth, Kubernetes, and Grafana.
• Knowledge of Cloud Technologies, AWS, CI/CD, Jenkins, and Testing methodologies is preferred.
• Hands-on to do API Documentation. Hands-on to invoke 3rd party REST / SOAP API invocations through REST template.
• Ability to design and architect solutions.
• Direct the integration of technical and engineering activities within projects.
• Knowledge of DevOps practices and tools.
• Ability to formulate and deliver solutions to complex problems in a large and diverse technology landscape with multiple teams.
• Recruit, coach, and mentor the best engineering talent

Preferable Location(s): Bengaluru, India Work Type: Part Time

Apply through this link

 https://garageplug.freshteam.com/jobs/lUnYthmY9U84/consultant-architect" target="_blank">https://garageplug.freshteam.com/jobs/lUnYthmY9U84/consultant-architect

1. Java Developer

Job profile:

• Project Role: Spring boot application developer
• Project Role Description: Design, build and configure spring boot applications to meet
• business process and application requirements.
• Work Experience: Fresher. Should have done at least one project in Java. Hands on
• experience on the Spring boot project is an added advantage.

Must Have Skills: Core Java or Spring boot Application

Important: Engineers should be able to code, Interview will involve actual coding

Key Responsibilities:

• Design, build and configure applications to meet business process and application requirements
• Understanding of

1. server side technologies, how the web applications work. Role of Database and APIs in modern web and mobile applications.
2. client side web frameworks, such as Angular or React and they integration with back end systems

• Implementation and customization of Web based solutions
• Development of custom components such as web interfaces, Validation Services etc.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
•     Write clean, maintainable code while rapidly iterating and shipping
•      Participate in all phases of development, from design to implementation, unit testing, and release.
•  Knowledge of javascript, OOPS including experience with design Pattern
• Excellent in Design patterns, Data Structure.

Technical Experience:

• Engineers should have done project(s) in Java or Spring boot.
• Knowledge of

1. Test and automation tools
2. Git
3. Restful APIs.
4. Solid understanding of object-oriented design and programming concepts.

• Have a passion for quality and writing clean, solid, readable code that scales and performs well.

Expected Competencies:

• Adaptable to change; able to respond to shifting requirements and priorities
• A well-organized and structured approach to work with good attention to detail.
• Comfortable with coordinating and collaborating with business teams to drive required decisions and outcomes.
• A high degree of personal integrity and strong ability to work collaboratively and effectively in a fast-paced, flexible, team-based environment.

• Create and maintain optimal data pipeline architecture,
• Assemble large, complex data sets that meet functional / non-functional business requirements.
• Author data services using a variety of programming languages
• Identify, design, and implement internal process improvements: automating manual processes, optimizing data delivery, re-designing infrastructure for greater scalability, etc.
• Build the infrastructure required for optimal extraction, transformation, and loading of data from a wide variety of data sources using SQL and Azure ‘big data’ technologies.
• Build analytics tools that utilize the data pipeline to provide actionable insights into customer acquisition, operational efficiency, and other key business performance metrics.
• Work with stakeholders including the Executive, Product, Data and Design teams to assist with data-related technical issues and support their data infrastructure needs.
• Keep our data separated and secure across national boundaries through multiple data centres and Azure regions.
• Create data tools for analytics and data scientist team members that assist them in building and optimizing our product into an innovative industry leader.
• Work with data and analytics experts to strive for greater functionality in our data systems.
• Work in an Agile environment with Scrum teams.
• Ensure data quality and help in achieving data governance.

• 2+ years of experience in a Data Engineer role
• Undergraduate degree required (Graduate degree preferred) in Computer Science, Statistics, Informatics, Information Systems or another quantitative field.
• Experience using the following software/tools:
• Experience with big data tools: Hadoop, Spark, Kafka, etc.
• Experience with relational SQL and NoSQL databases
• Experience with data pipeline and workflow management tools
• Experience with Azure cloud services: ADLS, ADF, ADLA, AAS
• Experience with stream-processing systems: Storm, Spark-Streaming, etc.
• Experience with object-oriented/object function scripting languages: Python, Java, C++, Scala, etc.
• Advanced working SQL knowledge and experience working with relational databases, query authoring (SQL) as well as working familiarity with a variety of databases
• Understanding of ELT and ETL patterns and when to use each. Understanding of data models and transforming data into the models
• Experience building and optimizing ‘big data’ data pipelines, architectures, and data sets
• Strong analytic skills related to working with unstructured datasets
• Build processes supporting data transformation, data structures, metadata, dependency, and workload management
• Working knowledge of message queuing, stream processing, and highly scalable ‘big data’ data stores
• Experience supporting and working with cross-functional teams in a dynamic environment

The Software Engineer – Order and Corporate Solutions is responsible for designing, developing, testing, and maintaining the full stack for Order and Corporate solutions.

Essential Job Functions:

1. Implement application components and systems according to department standards and guidelines.
2. Work with product and designers to translate requirements into accurate representations for the web.
3. Analyze, design, code, debug, and test business applications.
4. Code reviews in accordance with team processes/standards.
5. Understand and work with data in varying degrees of complexity and scale.
6. Responsible for planning, processing and performing all jobs in an efficient manner.
7. Provide assistance to testers and support personnel as needed to determine system problems.
8. Resolve problems involved with integrating new technologies with systems.

* Essential functions are the basic job duties that an employee must be able to perform, with or without reasonable accommodation.  The function is considered essential if the reason the position exists is to perform that function.

Supportive Job Functions:

1. Remain knowledgeable of new emerging technologies and their impact on internal systems.
2. Available to work on call when needed.
3. Perform other miscellaneous duties as assigned by management.

*These tasks do not meet the Americans with Disabilities Act definition of essential job functions and usually equal 5% or less of time spent.  However, these tasks still constitute important performance aspects of the job.

Knowledge, Skill, and Abilities:

1. Experience using C#, JavaScript, and Angular or React.(Must Have)
2. Experience with web services and RESTful APIs. (Must Have)
3. Experience with ASP.NET, ASP.NET MVC, and ADO.NET. (Must Have)
4. Experience with Sql databases. (Must Have)
5. Experience with Java, Bootstrap, and Event Queueing.
6. Experience with order entry, billing, and accounting.
7. Familiarity with modern CI/CD methods.
8. Exposure to Python, Django, and AWS.
9. Ability to organize, prioritize, and handle multiple assignments on a daily basis.
10. Strong and effective inter-personal and communication skills
11. Ability to interact professionally with a diverse group of clients and staff.
12. Must be able to work flexible hours on-site and remote.
13. Must be able to coordinate with other staff and provide technological leadership.
14. Ability to work in a complex, dynamic team environment with minimal supervision.
15. Must possess good organizational skills.

Education, Experience, and Certification:

1. Associate’s or bachelor’s degree preferred (Computer Science, Engineer, etc.), but equivalent work experience in a technology related area may substitute.
2. 5+ years relevant experience, required. *
3. Experience using version control daily in a developer environment.
4. Experience with C#, JavaScript, and Angular or React is required.
5. Experience with ASP.NET, ASP.NET MVC, and ADO.NET is required.
6. Experience working with MS-SQL database.
7. Experience working with Java, Bootstrap, and Event Queueing.
8. Experience with order entry, billing, and accounting.
9.  Exposure to Python, Django, and AWS.