Careers in VoIP Security

Locations: Hyderabad, India

Job Description:

• Develop a robust, secure linux based platform for Sipera's range of products.
• Manage a team of engineers to detect vulnerabilities in VoIP networks.
• Develop applications to secure enterprises and operators using VoIP.
  

Requirements:

• 4-8 years experience
• Experience in Linux, Debian and other flavours of Linux
• Excellent C, C++ programming
• Strong knowledge of data structures, algorithms, and ability to make good data structure choices for difficult problems
• Deep TCP/IP knowledge - usage and programming
• Demonstrable ability to write large, scalable network centric programs
• Knowledge of cryptography and crypto-protocols such as SSL/TLS, IPSec highly desirable
• Knowledge and usage of crypto libraries such as OpenSSL, crypto++ etc. highly desirable
• Knowledge of device driver programming highly desirable
• Very good knowledge of security from programming point of view
  

Locations: India

Job Description:

• Architect/Design and Develop H.323 & SIP Protocol related security features in C/C++
  
• Ability to function in a Linux environment
  
• Should take initiative and learn new things and deliver quickly
  
• Mentor the junior guys in the above technology areas

Requirements:

• 3-4 years of experience
• Strong C, C++ programming skills
• Thorough with TCP / IP programming
• Strong experience of working on Linux environment

Locations: Hyderabad, India

Job Description:

• The candidate will work with a geographically distributed team of engineers to deploy, troubleshoot and support VoIP Security product for UMA and IMS networks. The role will be geared towards performing penetration testing for UMA, GPRS, IMS and related wireless areas and deploying security product for them.

Requirements:

• CCNA
• Excellent TCP/IP knowledge - routing, bridging, firewalls, NAT, PAT, DMZ, etc.
• Hands on experience in supporting SIP, Skinny, H323, UMA, IMS protocols (infrastructure side)
• Hands on experience in supporting Enterprise Networks
• Hands on experience in supporting BSC and/or MSC components for GSM/UMTS (A-interface, Gb, Iu_CS, Iu_PS etc.)
• Knowledge of VoIP, SIP, IMS, 3GPP R6, R7 specifications a big plus
• Strong, practical knowledge of deploying MCS Call Server, Cisco Skinny in to Enterprise Network a big plus
• Strong, practical knowledge of UMA, IMS, GSM & UMTS standards (from the perspective of infrastructure), interoperability, deployment scenarios, etc.
• Proven ability to work in a Linux (or Unix) environments with detailed knowledge of scripting
• Ability to Deploy MCS Call Server, Cisco Skinny in to Enterprise Network is a plus
• Strong experience of working in Product Trouble shooting and Customer support
• 3 to 10 years of experience

For Lead Role:

• Experience with taking a product through acceptance, customer trials, Interoperability trials, external lab trials etc.
• Ability to design and implement fault tolerant, highly available networks

Locations: Hyderabad, India

Job Description:

• The candidate will work with a geographically distributed team of engineers to develop and implement IMS (3GPP) protocols geared towards detecting & preventing security/protocol anomalies.

Requirements:

• Hands on experience in developing IMS protocols (infrastructure side)
• Deep, Hands-on Knowledge of VoIP, SIP, IMS, 3GPP R6, R7 specifications (knowledge of GSM/UMTS/UMA protocols is a big plus)
• Outstanding ability in C/C++ programming – templates, inheritance, etc.
• Ability to design and implement fault tolerant, highly available, hardened applications
• Proven ability to work in an Linux (or Unix) development environment with detailed knowledge of pthreads, signals, IPC
• In-depth expertise in TCP/IP “Socket API”, SCTP, IPSec, IPv6, MobileIP, etc.
• Practical knowledge of IMS interoperability, certification, deployment scenarios, etc.
• Must be capable of mentoring and growing a team of IMS engineers to design, develop and deliver an IMS security product
• 8 to 10 yrs of experience with 5-6 years in IMS

Locations: Hyderabad, India

Description:

• This candidate will join a vulnerability task force and research in identifying plots and threats in the VoIP world.

Requirements:

• 3yrs to 10+ yrs
• Strong in C, Assembly, Shell scripts, exploits
• Debug tools, reverse engineering
• Experience in vulnerabilities assesment in networking / security protocols
• Experience in Virus / Worms / Trojan attack development
• VOIP experience a plus
• Hackers invited!

Locations: Richardson, TX

Job Requirements

• 3+ years of experience;
• Must have BS/MS computer science or electrical engineering
• Software engineer must be an expert in Linux internals. Prior experience developing kernel modules and driver is required;
• Candidate must have prior experience in managing kernel and supporting software in an embedded system environment;
• Strong in C/C++ programming; Proficiency in MIPS and x86 assembly language is a plus.

Locations: Richardson, TX, USA

Experience Level: 3-10 years

Required Demonstrated Abilities:

• Hands on experience in VOIP test automation using TCL and Expect, VB.

• Proven Expertise in developing Automation Core components of Automation Framework and developing test scripts.

• Ability and proven skills to setup build environments and automation infrastructure

• Hands on experience in testing SIP, Skinny, IMS protocols (infrastructure side).

• Strong skills in TCP/IP, Networking and Routing protocols.

• In depth Knowledge of VoIP, SIP, specifications a big plus

• Hands on experience in testing VoIP and/or Security products for Enterprise Networks.

• Experience in software testing from various angles like functionality, capacity and usability.

• Critical hacking/intruder skill with breaking security algorithms, encryption, simulating DDoS, Breaking SPAM algorithms is an added skill set.

• Strong practical knowledge of deploying Cisco CUCM , Avaya SES/CM, Nortel CS2100 Call Server in to Enterprise Network.

• Proven ability to work in a Linux (or Unix) environments with detailed knowledge of scripting, and experience with open source tools.

• Expertise in using Call generators like Empirix, SPT, etc is a big plus.

• Be able to support automation requests from multiple projects/groups simultaneously

• Outstanding problem solving ability

• Must be an independent worker (self-motivated & self-learner); should be able to function in situations where the requirements are poorly defined, changing frequently or altogether absent; Where requirements are ill defined, candidate must possess ability to document requirements concisely.

• Candidate must be able to communicate technical ideas in a clear and unambiguous manner to other technical (and possibly non-technical) personnel

Locations: Richardson, TX, USA

Experience Level: 3-10 years

Required Demonstrated Abilities:

• Proven in-depth Expertise in testing VoIP and/or Security products for Enterprise Networks.

• Experience in Product testing from various angles like functionality, capacity and usability.

• Strong practical knowledge of Configuring Avaya SES/CM, Nortel CS2100 Call Server, Cisco CUCM in to Enterprise Network Scenario as per testing needs.

• Strong skills in TCP/IP, Networking and Routing protocols.

• Experience in testing SIP, Skinny, IMS protocols (infrastructure side)

• Performance testing Experience will be a big plus

• Proven ability to work in a Linux (or Unix) environments with detailed knowledge of scripting, and experience with open source tools

• Expertise in Testing SBC/VOIP ALG is a big plus

• Expertise in Testing Mobile Clients(SIP client in Windows, Iphone, Symbian, Blackberry platforms) is a plus

• Expertise in using Call generators like Empirix, SPT, etc is a big plus.

• Critical hacking/intruder skill with breaking security algorithms, encryption, simulating DDoS, Breaking SPAM algorithms is an added skill set.

• Outstanding problem solving ability

• Must be an independent worker (self-motivated & self-learner); should be able to function in situations where the requirements are poorly defined, changing frequently or altogether absent; Where requirements are ill defined, candidate must possess ability to document requirements concisely

• Candidate must be able to communicate technical ideas in a clear and unambiguous manner to other technical (and possibly non-technical) personnel.