11+ PSTN Jobs in Delhi, NCR and Gurgaon | PSTN Job openings in Delhi, NCR and Gurgaon
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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)
Performance Marketer
Company Overview
We are a full-service marketing agency that helps ambitious brands show up sharper, grow faster and stand out in crowded markets. From content and social to performance marketing, design, video and PR, we build and execute brand strategies end-to-end for a diverse roster of clients across industries. We're a team that moves fast, takes creative risks, and holds itself to agency-grade standards on every single deliverable. If you want your work to ship, get seen, and actually move numbers for real brands rather than sit in a deck, you'll fit right in.
Role Summary
Plan and scale paid acquisition campaigns across platforms, owning budget, optimization and ROI end-to-end.
Job Details
- Experience: 2-5 years
- Work Model: On-site
- Work Location: ATS Bouquet, Sector 132, Noida
- Work Week: Monday-Saturday, 9:30 AM - 6:30 PM
- Reports To: Head of Growth / Marketing Lead
- Education: Bachelor's degree in Marketing, Business or related field preferred
Key Responsibilities
- Plan and run paid campaigns across Meta, Google and other platforms
- Manage budgets and bidding strategies to optimize for ROAS and CPA
- Continuously test creatives, copy, audiences and landing pages
- Analyze funnels end-to-end and identify drop-off and opportunity areas
- Report on key performance metrics and translate data into next actions
- Collaborate with creative team to brief and improve ad assets
- Stay current with platform updates, ad policy changes and new formats
- Scale what works and cut what doesn't, quickly
- Manage tracking and attribution setup in partnership with tech teams
- Forecast and plan budgets aligned with business growth targets
Mandatory Skills & Experience
- 2-5 years of hands-on performance marketing experience
- Proven expertise with Meta Ads Manager and Google Ads
- Strong analytical mindset with real budget-ownership experience
- Solid understanding of funnels, attribution and unit economics
Preferred Skills (Good to Have)
- Experience scaling ad spend significantly for a D2C/SaaS brand
- Familiarity with pixel/tracking setup and attribution tools
- Conversion rate optimization (CRO) experience
Tools & Technologies
- Meta Ads Manager, Google Ads
- Google Analytics 4 / Mixpanel
- Tracking/attribution tools (Pixel, GTM)
- Creative testing platforms
KPIs / Success Metrics
- Return on ad spend (ROAS)
- Customer acquisition cost (CAC)
- Conversion rate
- Budget utilization efficiency
Benefits & Perks
- Competitive compensation with performance-linked growth
- High-ownership role with direct access to leadership
- Fast-tracked career growth in a high-growth environment
- Learning and development support
- A culture that rewards speed, ownership and craft
ROLE & RESPONSIBILITIES:
We are hiring a Senior DevSecOps / Security Engineer with 8+ years of experience securing AWS cloud, on-prem infrastructure, DevOps platforms, MLOps environments, CI/CD pipelines, container orchestration, and data/ML platforms. This role is responsible for creating and maintaining a unified security posture across all systems used by DevOps and MLOps teams — including AWS, Kubernetes, EMR, MWAA, Spark, Docker, GitOps, observability tools, and network infrastructure.
KEY RESPONSIBILITIES:
1. Cloud Security (AWS)-
- Secure all AWS resources consumed by DevOps/MLOps/Data Science: EC2, EKS, ECS, EMR, MWAA, S3, RDS, Redshift, Lambda, CloudFront, Glue, Athena, Kinesis, Transit Gateway, VPC Peering.
- Implement IAM least privilege, SCPs, KMS, Secrets Manager, SSO & identity governance.
- Configure AWS-native security: WAF, Shield, GuardDuty, Inspector, Macie, CloudTrail, Config, Security Hub.
- Harden VPC architecture, subnets, routing, SG/NACLs, multi-account environments.
- Ensure encryption of data at rest/in transit across all cloud services.
2. DevOps Security (IaC, CI/CD, Kubernetes, Linux)-
Infrastructure as Code & Automation Security:
- Secure Terraform, CloudFormation, Ansible with policy-as-code (OPA, Checkov, tfsec).
- Enforce misconfiguration scanning and automated remediation.
CI/CD Security:
- Secure Jenkins, GitHub, GitLab pipelines with SAST, DAST, SCA, secrets scanning, image scanning.
- Implement secure build, artifact signing, and deployment workflows.
Containers & Kubernetes:
- Harden Docker images, private registries, runtime policies.
- Enforce EKS security: RBAC, IRSA, PSP/PSS, network policies, runtime monitoring.
- Apply CIS Benchmarks for Kubernetes and Linux.
Monitoring & Reliability:
- Secure observability stack: Grafana, CloudWatch, logging, alerting, anomaly detection.
- Ensure audit logging across cloud/platform layers.
3. MLOps Security (Airflow, EMR, Spark, Data Platforms, ML Pipelines)-
Pipeline & Workflow Security:
- Secure Airflow/MWAA connections, secrets, DAGs, execution environments.
- Harden EMR, Spark jobs, Glue jobs, IAM roles, S3 buckets, encryption, and access policies.
ML Platform Security:
- Secure Jupyter/JupyterHub environments, containerized ML workspaces, and experiment tracking systems.
- Control model access, artifact protection, model registry security, and ML metadata integrity.
Data Security:
- Secure ETL/ML data flows across S3, Redshift, RDS, Glue, Kinesis.
- Enforce data versioning security, lineage tracking, PII protection, and access governance.
ML Observability:
- Implement drift detection (data drift/model drift), feature monitoring, audit logging.
- Integrate ML monitoring with Grafana/Prometheus/CloudWatch.
4. Network & Endpoint Security-
- Manage firewall policies, VPN, IDS/IPS, endpoint protection, secure LAN/WAN, Zero Trust principles.
- Conduct vulnerability assessments, penetration test coordination, and network segmentation.
- Secure remote workforce connectivity and internal office networks.
5. Threat Detection, Incident Response & Compliance-
- Centralize log management (CloudWatch, OpenSearch/ELK, SIEM).
- Build security alerts, automated threat detection, and incident workflows.
- Lead incident containment, forensics, RCA, and remediation.
- Ensure compliance with ISO 27001, SOC 2, GDPR, HIPAA (as applicable).
- Maintain security policies, procedures, RRPs (Runbooks), and audits.
IDEAL CANDIDATE:
- 8+ years in DevSecOps, Cloud Security, Platform Security, or equivalent.
- Proven ability securing AWS cloud ecosystems (IAM, EKS, EMR, MWAA, VPC, WAF, GuardDuty, KMS, Inspector, Macie).
- Strong hands-on experience with Docker, Kubernetes (EKS), CI/CD tools, and Infrastructure-as-Code.
- Experience securing ML platforms, data pipelines, and MLOps systems (Airflow/MWAA, Spark/EMR).
- Strong Linux security (CIS hardening, auditing, intrusion detection).
- Proficiency in Python, Bash, and automation/scripting.
- Excellent knowledge of SIEM, observability, threat detection, monitoring systems.
- Understanding of microservices, API security, serverless security.
- Strong understanding of vulnerability management, penetration testing practices, and remediation plans.
EDUCATION:
- Master’s degree in Cybersecurity, Computer Science, Information Technology, or related field.
- Relevant certifications (AWS Security Specialty, CISSP, CEH, CKA/CKS) are a plus.
PERKS, BENEFITS AND WORK CULTURE:
- Competitive Salary Package
- Generous Leave Policy
- Flexible Working Hours
- Performance-Based Bonuses
- Health Care Benefits
The Team Lead – Sales & Counselling role carries complete ownership of team performance, target achievement, and revenue growth. The role combines people leadership, process discipline, and strategic execution while ensuring high-quality student counselling and compliance with company systems.
Key Responsibilities
- Lead, mentor, and monitor a team of student counsellors
- Own team-level revenue targets and performance metrics
- Conduct daily reviews, training sessions, and performance improvement interventions
- Ensure CRM accuracy, follow-up discipline, and policy compliance
- Coordinate with senior management on sales strategy and execution
- Drive sustainable revenue growth, team stability, and retention
Key Responsibilities:
- Assist in planning and executing email marketing campaigns to generate leads.
- Create engaging email content tailored to potential clients interested in web design, mobile app development, and SEO.
- Manage and grow email contact lists.
- Monitor email performance metrics such as open rates, click-through rates, and conversions.
- Research and identify potential B2B leads and contribute to the lead generation pipeline.
- Work closely with the sales and marketing teams to align email campaigns with business goals.
- Use tools like Mailchimp, HubSpot, or similar platforms to manage campaigns.
Requirements:
- Strong written communication skills.
- Basic understanding of digital marketing and email platforms.
- Interest in web technologies and digital services.
- Self-motivated and eager to learn.
- Bachelor’s degree in Marketing, Communications, or a related field
Minimum 2 years of experience in the software development, including Project Management and
interactions with customers
• Solid understanding of the full software development life cycle
• Working Experience of
a) Ubuntu 18.04.4 LTS
b) Java 1.8
c) Tomcat 9
d) Spring boot framework 2.2.2. RELEASE
e) Spring OAuth2 2.4.0. RELEASE
f) Spring Security JWT 1.1.0.RELEASE
g) Spring Log4j2
h) Hibernate 3.13.3
i) Nginx 1.14.0
j) Hikari Connection Pool
k) Mariaj Connector
l) Google Recaptcha
m) Redis client 3.3.0
Qualification
Mandatory skills:
- Programming skills in Python, Robot framework, Selenium, Shell scripting
- Experience on L2/L3 protocols of VLAN/DHCP/LACP/IGMP/PPPoE.
- Should be familiar with device configuration protocols of CLI/NETCONF/SNMP.
- Experience in telecom technologies like DSLAM/GPON/G.fast/Next gen broadband technologies is highly recommended
- Knowledge on regression/performance/load/scale/stability test areas
- Hands on experience with Common industry equipment like Spirent test center/ixia/Abacus/Shenick(TeraVM)/N2X Traffic generators.
- Exposure to debug tools such as Wireshark/tcpdump.
Job Requirements:
- Knowledge on software Test cycle, test plan and test case creation
- Understanding of End to end test setup topology and debugging.
- Ability to perform System level Functional and Non-functional tests.
- Familiar with Manual test life cycle
- Designing and writing test automation scripts using automation frameworks
- Exposure to CI/CD pipe line implementation and maintenance using Jenkins, Groovy scripting
- Linux skills (system configuration and administration, containers, networking experience and d) such as sockets and database management
- Good debugging skills and knowledge on various debug tools
- Bug reporting/tracking and providing logs.
The founders are MIT alumni who bring with them immense tech and business knowledge to provide global level gaming services.
As a React Native Developer, you will participate with the senior developer in the entire application lifecycle, designing, coding, testing, debugging to deployment.
What you will do:
- Implementing designs and coordinating the frontend development and required backend for it.
- Working on back-end development tasks and designing architecture for the same.
- Performing research and find opportunities to utilise web development best practices, forming guidelines to improve system productivity, and working on scaling and monitoring.
- Working with cross-functional teams to maintain and make sure the product should be scalable, maintainable and secure.
- Coordinating with multiple junior team members for the development of the tasks & projects
- Developing user interface components and implementing them following well-known React.js workflow.
- Architecting the application out in clean MVC kind of architectures in ReactNative for Android/ iOS app development.
- Developing APIs with MVC frameworks in Java / Python.
- Designing and building REST APIs.
- Building on and maintaining services on cloud platforms.
- Building reusable code and libraries for future use.
What you need to have:
- Bachelor's degree in Computer Science or related field.
- Built an application from scratch earlier.
- Strong computer science fundamentals.
- The ability to own end to end responsibility - right from requirement to release.
- Proficient with JavaScript and TypeScript
- Deep knowledge of React Native specifics
- Desire and ability to play different roles as necessary
- High code quality standards and work ethics
- Experience in writing automated e2e tests
- Native mobile development experience (a plus)

Looking for MNC as python web developer for Gurgaon and NCR
Requirements
-
Previous working experience as a Python Web Developer for min 2 years.
-
Hands-on experience with Django, Flask, or other Python frameworks.
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Experience with Design implementation of objects and data models.
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Working knowledge in JavaScript, HTML5, CSS3.
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Understanding of CI/CD practices.
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Familiarity with some ORM (Object Relational Mapper) libraries.
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Proficient understanding of code versioning tools such as Git, Mercurial, or SVN.
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Hands-on experience with complex scripts in Python to capture business logic and automate system management tasks.
We are looking for a great JavaScript developer who is proficient with React.js and React Native. His/her primary focus will be on developing user interface components and implementing them following well-known React.js workflows.
Responsibilities:
- Developing new user-facing features using React.js and React Native.
- Work with Bright's design team to build excellent UI components.
- Building reusable components and front-end libraries for future use.
- Architect, build and maintain excellent javascript/React Native applications with clean code.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Reach out to the open source community to encourage and help implement mission-critical software fixesReact Native moves fast and often breaks things.
- Maintain code and write automated tests to ensure the product is of the highest quality.
Requirements:
- Strong proficiency in JavaScript and CSS .
- Thorough understanding of React/React-Native and its core principles.
- Past experience with building Customer Facing UI components.
- Some experience with UI design and related tools.
- Knowledge of automation testing framework using any technology for web and mobile apps is a plus.
- Knowledge of Database basics, SQL queries, etc.
Candidate must have experience with start up product based companies.
Opportunity is with the client from E Mobility domain.





