
Job Title: System Administrator (VoIP/Telephony) / Telephony Engineer (Telecommunications)
Company: Telebu Communications
Location: Hitech city, Madhapur, Hyderabad
Experience: 3–5 Years
Employment Type: Full Time
Salary: Up to CTC 50,000
About Telebu Communications
Telebu is a 20+ year-old product-based technology company offering enterprise communication solutions across SMS, Chat, Voice & Video platforms. Formerly known as SMSCountry Networks, Telebu has offices across India, Bahrain, UAE, Saudi Arabia, Qatar & USA.
Objective: We are looking for a System Administrator (VoIP) / Telephony Engineer (Telecommunications) to join our Telebu's Communications engineering Team. The Telebu will develop, implement and support IP Telephony related technologies including and not limited to IP Telephony, IVR platforms, Conferencing solutions, Voice engineering integration, Voice over IP (VoIP), Session Border Controllers (SBC), Session Initiation Protocol (SIP), WebRTC, and Public Switched Telephone Network (PSTN) gateways.
Responsibilities:
- Install & maintain Freeswtich and other SIP servers.
- Administration of SIP and Media Servers, Network/Protocol level debugging and testing, Contact center solutions, Troubleshoots and resolves complex problems.
- Provide IP Telephony and VoIP Subject Matter Expertise for Company and Company's managed service providers, manages 3rd party telecom carriers and providers.
Requirements:
- 3 years of hands-on industry experience in telecommunications
- Strong conceptualize knowledge and experience with telephony protocols like SIP, SDP, RTP, SRTP and audio/video codecs.
- In-depth working experience with Kamailio, Freeswitch, Any of the SIP stack (Sofia, reSIProcate, PJSIP, etc.), and Linux
- Experience in using the VoIP testing tools like Wireshark, VoIPMonitor, SIPp, SIPCapture, Homer etc.
- Strong understanding of implementing various network setups (Private VPNs, multi-zone secure connectivity etc)
Nice to have:
- Experience with virtualization/container related technologies (Xen, VMware vSphere / ESXi, Docker, Kubernetes)
- Hands on writing production quality code using any of the scripting languages like Python, Go, Erlang etc.
- Working knowledge in any NoSQL databases like MongoDB, Redis, Cassandra etc.
- Passionate about knowing everything about VoIP Protocol standards & related RFCs

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Job Title : QA Lead Engineer – Network Security
Location : Gurgaon, Bangalore (On-site)
Experience Level: Lead (Web3 & Blockchain)
Experience: 4+ Years in QA with Blockchain/Web3 focus and team leadership.
Role Overview:
As a QA Lead - Network Security, you will define and implement QA and security testing strategies for Blockchain applications, lead a QA team, and collaborate with cross-functional teams to ensure high-quality, secure products.
Key Responsibilities:
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- Conduct vulnerability assessments, penetration tests, and security audits.
- Automate security and functionality tests for improved efficiency.
- Ensure compliance with standards like GDPR, OWASP, and ISO 27001.
Skills & Qualifications:
- Technical: Expertise in network security, QA tools, test automation (Selenium, Cypress), and programming (Python, Java).
- Compliance: Knowledge of OWASP, ISO 27001, and Blockchain-specific regulations.
- Leadership: Proven experience leading QA teams and driving quality initiatives.
Preferred:
- Penetration testing tools (Burp Suite, Nessus).
- CI/CD experience (Jenkins, GitLab).
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Why Join Us?
- Competitive salary and bonuses.
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About MyOperator:
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MyOperator empowers over 12,000 businesses globally with seamless cloud telephony and WhatsApp solutions, including IVR, call management, virtual numbers, and robust CRM integrations. We are ranked #1 in India's Call + WhatsApp Matrix, helping businesses streamline communication, boost sales, and enhance customer experience. Join our ambitious team and play a pivotal role in our continued success!
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Preferred Skills:
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Experience: 3-5 year in backend operations.
Location Requirement: Candidates must be from Delhi/NCR only.
Work Environment:
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Benefits
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- Work Benefits: Laptop and mobile reimbursements.
JoVE is the world-leading producer and provider of science video solutions with the mission to improve scientific research and education. Millions of scientists, educators and students use JoVE for their research, teaching and learning. Our institutional clients comprise over 1,000 universities, colleges, and biopharma companies, including such leaders as Harvard, MIT, Yale, and Stanford. As a rapidly growing company, with offices in the USA, UK, Australia, and India servicing clients in over 60 countries, we are seeking talented and ambitious individuals to join our company.
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Monitoring and Logging: Set up and maintain monitoring and logging solutions (e.g., CloudWatch, ELK stack) to proactively identify and troubleshoot issues within the AWS infrastructure.
Security and Compliance: Implement security best practices and compliance standards (e.g., AWS IAM, Security Groups) to protect data and resources. Conduct security audits and vulnerability assessments.
The Successful Applicant
AWS Proficiency: Extensive experience with Amazon Web Services (AWS) and its services, including EC2, S3, RDS, Lambda, and more. AWS Certified DevOps Engineer certification is a plus.
Infrastructure as Code (IaC): Proficiency in writing and maintaining infrastructure as code using tools like Terraform, AWS CloudFormation, or similar technologies.
CI/CD Tools: Strong knowledge of CI/CD tools such as Jenkins, Travis CI, or AWS CodePipeline. Ability to configure and optimize automated build and deployment pipelines.
Containerization: Hands-on experience with containerization technologies like Docker and container orchestration platforms like Kubernetes in AWS.
Scripting and Automation: Proficiency in scripting languages (e.g., Bash, Python) for automating tasks and managing infrastructure.
Monitoring and Logging Tools: Familiarity with monitoring and logging tools such as CloudWatch, ELK stack (Elasticsearch, Logstash, Kibana), Prometheus, Grafana, or Splunk.
Security and Compliance: Strong understanding of AWS security best practices, identity and access management (IAM), and compliance frameworks (e.g., HIPAA, GDPR).
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SDE- Mobile
Skills: Xamarin,C#, MVVM.MVp,Data Structures, Native App development
Experience: 5 -8 Yrs
Education: B.Tech/B.E(Mandatory)
Status: Open
Mobile Dev, 5+Years Xamarin, C#,NativeAndroid / iOS development using Xamarin, BLE communication











