11+ PSTN Jobs in Delhi, NCR and Gurgaon | PSTN Job openings in Delhi, NCR and Gurgaon
Apply to 11+ PSTN Jobs in Delhi, NCR and Gurgaon on CutShort.io. Explore the latest PSTN Job opportunities across top companies like Google, Amazon & Adobe.
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 seeking an experienced Cyber Security Specialist who can operate across both offensive and defensive security disciplines. This dual-role professional will lead Vulnerability Assessment and Penetration Testing (VAPT) engagements, act as the in-house Red Team to simulate real-world adversaries, and own the implementation and continuous improvement of the Information Security Management System (ISMS) aligned with ISO/IEC 27001 and related standards. You will combine hands-on offensive security work with governance, audit readiness, and stakeholder engagement across engineering, IT, legal, and executive leadership.
Key Responsibilities
VAPT & Red Team Operations
- Plan, scope, and execute end-to-end Vulnerability Assessment and Penetration Testing (VAPT) engagements across web applications, mobile apps, APIs, networks, cloud environments, wireless, and physical infrastructure.
- Act as the organization's in-house Red Team, simulating advanced persistent threat (APT) actors through adversary emulation, social engineering, phishing campaigns, and physical intrusion testing where authorized.
- Design and execute Red Team operations aligned with MITRE ATT&CK, TIBER-EU, and similar frameworks; develop custom Tactics, Techniques, and Procedures (TTPs).
- Conduct manual and automated exploitation, post-exploitation, lateral movement, privilege escalation, and persistence testing in production-like environments.
- Develop custom exploits, payloads, scripts, and tooling (Python, PowerShell, Bash, C/C++, Go) to bypass security controls during sanctioned engagements.
- Perform source code reviews, threat modeling, and secure architecture reviews of new and existing systems.
- Coordinate Purple Team exercises with the Blue Team / SOC to validate detection coverage and improve defensive playbooks.
- Produce high-quality VAPT and Red Team reports with executive summaries, technical findings, proof-of-concept exploits, risk ratings (CVSS), and prioritized remediation guidance.
- Re-test remediated findings and track closure with engineering and IT teams through to verification.
ISO Compliance & Governance
- Lead the implementation, maintenance, and continual improvement of the ISMS in line with ISO/IEC 27001:2022, including scope definition, Statement of Applicability (SoA), and risk treatment plans.
- Own and maintain ISO policies, procedures, controls, and documentation across the organization, ensuring alignment with ISO 27001, ISO 27017, ISO 27018, and ISO 22301.
- Plan and coordinate internal and external audits; serve as the primary liaison with certification bodies, auditors, and regulators.
- Conduct risk assessments, business impact analyses (BIA), and threat modeling; maintain a central risk register and drive remediation.
- Map VAPT and Red Team findings to ISO 27001 Annex A controls and feed results into the risk management lifecycle.
- Support compliance with adjacent frameworks: SOC 2, NIST CSF, GDPR, HIPAA, PCI-DSS, and DPDP Act (India), as applicable.
- Define and report security and compliance KPIs/KRIs to senior leadership; prepare materials for management reviews and board updates.
- Develop and deliver security awareness training, phishing simulations, and role-based secure-coding training.
- Drive third-party / vendor risk management, including security questionnaires, contractual clauses, and ongoing monitoring.
- Partner with engineering and DevOps to embed security into the SDLC, CI/CD pipelines, and cloud architectures (DevSecOps).
Incident Response & Continuous Improvement
- Support incident response activities: detection, triage, containment, eradication, recovery, and post-incident reviews.
- Maintain business continuity and disaster recovery plans; coordinate BCP/DR testing and tabletop exercises.
- Stay current on emerging threats, CVEs, attacker techniques, regulatory changes, and ISO standard updates; recommend and drive improvements.
Required Qualifications
- 8+ years of progressive experience in cyber security, with at least 4 years in hands-on offensive security (VAPT, penetration testing, or Red Team) and 3+ years in ISO 27001 implementation and audits.
- Proven track record of leading VAPT engagements across web, mobile, API, network, cloud (AWS / Azure / GCP), and wireless environments.
- Hands-on experience executing Red Team operations and adversary emulation aligned with MITRE ATT&CK.
- Deep proficiency with offensive security tooling: Burp Suite Pro, Metasploit, Cobalt Strike (or open-source equivalents like Sliver, Mythic, Havoc), Nmap, Nessus, Nuclei, BloodHound, Impacket, Responder, and OWASP ZAP.
- Strong scripting and exploit development skills in Python, PowerShell, Bash, and at least one compiled language (C/C++, Go, or Rust).
- Proven hands-on experience leading an organization through ISO 27001 certification and surveillance audits end-to-end.
- Strong working knowledge of ISO/IEC 27001:2022 (including Annex A controls), ISO 27002, ISO 27017, ISO 27018, and ISO 22301.
- Solid understanding of security domains: IAM, network security, endpoint security, cloud security, application security (OWASP Top 10, API Security Top 10), and Active Directory attack paths.
- Experience with risk assessment methodologies (ISO 27005, NIST 800-30) and the ability to translate offensive findings into business risk.
- Strong report-writing, policy-drafting, and executive communication skills.
- Bachelor's degree in Computer Science, Information Security, Engineering, or a related field (or equivalent experience).
Preferred Qualifications
- Offensive security certifications: OSCP, OSEP, OSWE, OSED, CRTO, CRTP, CRTE, CRTL, GPEN, GXPN, GWAPT, or CEH Practical.
- Governance certifications: ISO 27001 Lead Implementer and/or Lead Auditor, CISSP, CISM, CISA, or CRISC.
- Cloud security certifications (CCSP, AWS Security Specialty, Azure Security Engineer, or GCP Professional Cloud Security Engineer).
- Published CVEs, security research, bug bounty achievements, or contributions to open-source security tools.
- Experience with Active Directory / Entra ID red teaming, Kerberos attacks, and modern EDR/XDR evasion techniques.
- Experience with container, Kubernetes, and serverless security testing.
- Experience implementing or auditing additional frameworks: SOC 2 Type II, NIST CSF, NIST 800-53, HITRUST, or PCI-DSS.
- Experience with GRC platforms (Vanta, Drata, Sprinto, ServiceNow GRC, Archer, OneTrust).
- Experience in regulated industries: financial services, healthcare, SaaS, or critical infrastructure.
- Experience briefing executive leadership, customers, and external auditors on offensive findings and remediation strategy.
About Us
We are a fast-growing tech company building scalable and modern web applications. Our team works on cutting-edge technologies in AI, automation, and digital solutions. We are looking for a Frontend Intern (Next.js) to join our engineering team and contribute to building interactive and user-friendly web applications.
Role & Responsibilities
- Build, test, and deploy responsive user interfaces using Next.js and React.
- Collaborate with designers and backend developers to implement seamless user experiences.
- Optimize components for maximum performance across web-capable devices and browsers.
- Work on real-world projects involving dashboards, AI products, and customer-facing platforms.
- Assist in debugging, code reviews, and documentation.
- Stay up-to-date with the latest frontend trends and best practices.
Requirements
- Basic understanding of JavaScript/TypeScript, React.js, and Next.js.
- Familiarity with HTML5, CSS3, and modern styling frameworks (TailwindCSS, Material UI, etc.).
- Knowledge of REST APIs or GraphQL integration.
- Good problem-solving skills and willingness to learn quickly.
- Ability to work in a collaborative team environment.
- Prior experience with Git/GitHub is a plus.
Nice-to-Have (Optional but a Plus)
- Experience with server-side rendering (SSR) and static site generation (SSG) in Next.js.
- Exposure to UI/UX design tools (Figma, Adobe XD, etc.).
What You’ll Gain
- Hands-on experience working on live projects with production-scale applications.
- Mentorship from experienced developers.
- Exposure to the complete product development lifecycle.
Networking Engineer | NOC Team
Job Description:
Summary of Position:-
- They should have hands-on on Technologies – Remote Support
- 24/7 Monitoring of Logs, Alerts, and Dash Boards
- Incident Identification & Recording
- Provide level 1 support to address the incident
- Prioritize and assign tickets to respective teams.
- Follow escalation matrix
Primary Responsibilities:
- Remote Support
- Cisco Router & Switches,
- Networking
- Network Devices.
- Monitoring of Log
- Assign tickets to respective teams.
- Follow the escalation matrix.
Requirements:
- Graduate 12th +3 years polytech Diploma.
- 1 to 2 Years Experience and 1-Year core experience in NOC Team & Remote Support.
- Excellent communication skills (Written & Verbal).
- Team Handling, Report Generation, Presentation skill.
- Flexible to learn and upgrade.
- Languages- Hindi/ English and can understand Gujarati is preferrable.
Job description:
- We are looking for a young and dynamic QA Intern to join our QA team and help plan testing efforts, execute test scripts, and help with installation testing, software, and web testing.
Your Roles and Responsibilities:
- Basic troubleshooting and analytical skills
- Good verbal and written communication skills (Documentation Skills)
- Attention to detail is important
- Must be proficient with computers
- Basic knowledge of software is required
- The ability to test software and question features or behavior is desirable.
You should have:
- BTech/B.E or relevant degree in Computer Science
Position Title: Lead Software Engineer
Level: Mid - Senior L5
Years: 6-8 Yrs
Job Location: Delhi/NCR (Hybrid)
Position: 1
About Omni.US
Omni is the ultimate B2B outreach platform backed by the decade-long expertise of co-founders in cold outreach and scaling SaaS companies. We've obsessively focused on cold outreach and built a powerful tool perfect for Enterprise and SMB companies to get clients. Our team has deep experience building and scaling B2B SaaS companies to millions in ARR. We understand what it takes to create a successful product, so we're excited about Omni.
Meet your Team Members
Alex Berman, Co-Founder
Navjyotsingh Rajput, Co-Founder
Madhuri Pandit, Product Owner
About the Role
As a Lead Engineer, you will need to produce and implement functional software solutions. You will work with a senior engineer to define software requirements and take the lead on operational and technical projects. In this role, you should be able to work with minimal supervision. Your goal will be to develop high-quality software that is aligned with customer needs and business goals.
Responsibilities
- You will need to ensure that software deliverables comply with quality standards and are completed on time.
- Experience or proactive working in mission-critical 24*7 systems.
- Review the performance of the operating system used in the Company and upgrade it as and when required.
- Conducts peer code reviews and design reviews.
- Should have knowledge and experience working with SAAS-based applications in early or mid-stage startups.
- Undertaking engineering tasks that are complex in nature and also working on big modules and defining the architectural layouts, both on the Application, API, and Database levels.
- Demonstrates broad and deep expertise in multiple computer languages and frameworks (e.g., open-source).
- Designs, Develop and approve end-to-end functionality of a product line, platform, or infrastructure.
- 3+ Years of experience as Technical Lead.
- 6+ years of software development experience with at least one full-cycle implementation.
- Strong exposure working on projects related to MERN stack. Maintains deep technical knowledge within areas of expertise
- Experience in building highly scalable distributed systems
Desired Experience
Technical Skills:
- Programming and working with mobile or website systems & security principles.
- Strong experience in Tech Stack - MERN (Node.JS, Express, React.JS, Mongodb) with GraphQl as preferred API.
- Experience working in Product lifecycle management from requirement gatherings to user experience.
- Strong experience in JS libraries.
- Must have delivered at least 1 product (which should be available in the public domain for reference)
Soft Skills:
- Creating end goals for their team.
- Experience in a delegation of responsibilities.
- Can multitask and Should have experience managing/working with a team of 5- 10 resources.
- Offering support and guidance to the team when needed, able to provide clear instructions and set expectations.
- Prior experience working with Startups and Senior developers or Tech leads.
Interview Process
- 1st Round - Technical
- 2nd Round - Product Manager
- 3rd Round - Manager
- 3rd Round - HR Manager
Qualifications
- BE/BTech/MCA/ME/MTech-E&C/IT/CS or equivalent experience.

Top MNC Company with 100 years of expertise into technological innovations
Detailed Job Description:
|
Requisition No. |
Position Name |
Primary Skill |
Exp |
Location |
|
35481 |
Java Technical Lead |
Java, Spring Boot, Spring, Any ORM, Working experience in TCS Bancs or Integration Working Experience in ISO20022, SWIFT, Remittance (Mandatory) |
6- 8 yrs |
Noida |
Mandatory:
- 6-8 years of total IT experience delivering enterprise-scale applications or product implementations
- 1-3 years of experience working as a technical lead.
- Working Experience in ISO20022, SWIFT, Remittance ( Mandatory)
- Language & Frameworks: Java, Spring Boot, Spring, Any ORM ( Mandatory)
Preferred:
- Working experience in TCS Bancs or Integration with TCS Bancs
- Database: SQL Server
- Working experience in managing projects in Java Stack.
- Good Knowledge of Microsoft stack, Static Code analyzers, Overall SDLC Lifecycle, Design & Architecture
Type – Permanent
Candidate should be ok for On shore travel (Singapore Travel) coming in next 3 months (for at least 1 month as when required)
• Expertise in Developing, Managing and implementing core features in Automation Framework using Selenium& TestNG.
• Work closely with the Developers and Engineers to achieve a high level of code coverage
• You create the necessary automation library and framework.
• Provide technical guidance and mentorship to a team
Desired Skills:
• Experience with Java coding and OOPs knowledge is must
• Must have good knowledge in Data structures & algorithm
• Expertise with tools like Selenium, TestNG or Appium or Robotium
• Should have worked on API Testing (Postman / Charles)
• Knowledge of any database & Unix environment is added advantage
• Proven track record in a high-speed product development environment
We are now looking to onboard an exceptional QA Engineer on our team. They will be an integral part of our technology function and work on challenging, cutting-edge problems, and contribute to the testing of various software systems and subsystems. They will be responsible to give a final go-ahead for new and interesting products for our B2B users and will work with the best minds in the industry.
What will you do?
- Test current products and identify deficiencies.
- Suggest solutions to identified product problems.
- Investigate product quality in order to make improvements to achieve better customer satisfaction.
- Plan, create, and manage the overall Quality Planning strategy.
- Collaborate with the Product Development team to ensure consistent project execution.
- Identify quality assurance process bottleneck and suggest actions for improvement.
- Oversee continuous improvement projects.
- Collect quality data.
- Identify key KPIs for product quality.
- Track quality assurance metrics, like defect densities and open defect counts.
- Prepare and present reports and metrics to Senior Management.
Please apply, if you have:
- A minimum of 2 years of experience as a Quality Assurance Engineer.
- An experience with a variety of different testing techniques such as UI Testing, Automated testing, Test Driven Development Strategies, etc
- An experience in testing tools such as Selenium, JMeter
- An experience with coding using Python, Java, Node.js.
- An experience with software QA tools and processes.
- Knowledge of MySQL
- A sense of ownership and pride in your performance and its impact on the company’s success.
- Critical thinker and problem-solving skills
- Good time-management skills
- Great interpersonal and communication skill
We have:
- A team of aces, from top-tier schools and startups, to work with
- A fast-paced, data-driven, and fun work environment
- A huge appetite for new, disruptive, creative, and implementable ideas
- An open work culture
We offer:
- Competitive salary
- Great working environment, opportunity to work directly with the founders on very exciting real-life problems.
- Opportunity to grow really fast.
- Opportunity to hire a team & mentor them in the future.
- ESOPs
Hiring process:
- Shortlist
- Intro call of 15min
- 1-2 Tech rounds
- HR round
- Offer rollout
|
POSITION SUMMARY
Essential Skills & Key Responsibilities
- Expertise in P2P domain which includes Procurement and Account Payables and Fusion
- P2P functional implementation experience including Interfaces & RICE objects with other legacy applications.
- Leading the business analysis capability in the procurement space, building excellent business connect, influencing and negotiating between tech and business.
- Capture & clarification of business requirements through a range of analysis techniques for the Business (data flow diagrams, case tool analysis, gap analysis and work & process flow diagrams)
- Function as a techno-functional resource and assist in designing solutions for business
- Understand the business data in depth, analyse key performance indicators and use the same to analyse the requirements further
- Obtaining agreement on business analysis deliverables and ensuring that they meet all the requirements of the business
- Proactively working with business to identify, define, and clarify the scope / issues in terms of complex business/systems requirements.
- Identify options for potential solutions and assessing them for both technical and business suitability/feasibility
- Working with business to capture & clarify business requirements & support business & technology teams in data analysis, in UAT phase etc.
- Acting as a proxy customer with the development teams, facilitating open communication between the customer & development team
- Driving user acceptance criteria with the customer
- Aware of the AGILE terminologies and should have knowledge of AGILE tools like JIRA, Confluence etc.
- Basic knowledge of PL/SQL for data querying & analysis will be an added advantage.
- Exposure to MS Office products like Visio and Excel




