Sales Engineer

Job Opening: FreeSWITCH Developer

Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata

Employment Type: Full-Time, Permanent

Shift: Day Shift

Experience: Minimum 4+ years in FreeSWITCH/VoIP Development

Responsibilities:

• Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
• Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
• Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
• Hands-on experience with RTP Proxy and routed audio conferences.
• Understanding of SDP Protocol offer/answer mechanism.
• Work with load testing tools for FreeSWITCH audio conferences.
• Deploy and manage multiple FreeSWITCH instances using load balancers.
• Debug issues using packet captures (Wireshark/Ngrep).
• Collaborate with mobile/API teams for integration and support.
• Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
• Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.

Qualifications:

• Bachelor’s degree in Engineering (B.Tech/MCA).
• 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
• Strong knowledge of Linux environments and command-line tools.
• Basic to intermediate SQL knowledge.
• Proficiency in scripting (Bash, Python, Perl) for automation.
• Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
• Excellent troubleshooting skills with ability to resolve complex technical issues.
• Strong problem-solving, communication, and collaboration skills.

Industry Preference:

• Travel (Preferred)
• Any Industry (Required)

🚀 Digital Marketing Interns Wanted! Join Hi Tech Enterprises 🚀

📍 Location: Remote / Mumbai / Bhavnagar

📅 Duration: 3-6 months (with potential for full-time employment)

💰 Stipend: Performance-based

About Us:

Hi Tech Enterprises (www.hitechenterprise.in) is a cutting-edge IT services and digital marketing firm specializing in software development, AI solutions, web & mobile apps, SaaS, CRM, and performance marketing. We are looking for enthusiastic Digital Marketing Interns to join our growing team!

What You’ll Do:

✅ Assist in planning and executing digital marketing campaigns

✅ Work on SEO strategies (on-page & off-page) to improve website rankings

✅ Manage social media content, engagement, and ads (Facebook, Instagram, LinkedIn)

✅ Conduct keyword research & optimize content for search engines

✅ Support email marketing campaigns and automation

✅ Analyze marketing data and provide insights

✅ Stay updated with the latest digital marketing trends

What We’re Looking For:

🎯 Passion for digital marketing & eagerness to learn

🎯 Basic knowledge of SEO, social media, and PPC (Google Ads, Meta Ads)

🎯 Familiarity with tools like Google Analytics, SEMrush, or Canva is a plus

🎯 Strong writing & communication skills

🎯 Self-motivated, creative, and detail-oriented

What You’ll Get:

🚀 Hands-on experience with real marketing campaigns

🚀 Mentorship from industry experts

🚀 Certification of completion

🚀 Opportunity for a full-time role based on performance

📩 Apply Now: Send your resume

For more details, visit www.hitechenterprise.in

Join us and take the first step in your Digital Marketing career! 🌟

Responsibilities:

• Involvement In Creating of the Test Cases, Test Scenarios and Test Data.
• Preparation Of Test Strategy.
• Involvement In Database Testing
• Responsible for GUI and Functional Testing, using Black Box Testing Techniques.
• Involvement in Test Execution, Result Analyzing, and Defect Reporting.
• Involved in Analyzing the Requirements and Communicating with BA Team for a Better Understanding of the Requirements.
• Responsible For Test Deliverables, Prioritizes and Monitors Activities to Meet Such Dates for Assigned Features
• Identified Test Cases and Test Data
• Execution of Test Cases From JIRA.
• Performing Functional Testing and Regression Testing, Integration, Testing, Sanity Testing.
• Identifying Test Cases for Automation.
• Reviewing the Automation Script

Skills:

• Proven experience as a Quality Assurance Tester or similar role
• Experience in project management and QA methodology
• Familiarity with Agile frameworks and regression testing is a plus
• Ability to document and troubleshoot errors
• Working knowledge of test management
• Excellent communication skills
• Attention to detail
• Analytical mind and problem-solving aptitude
• Strong organizational skills
• BSc/BA in Computer Science, Engineering, or a related field

• Be part of the customer success team and own a process in user onboarding journey

• Own the Revenue Operations end-to-end for our Customers; helping out Customers from post-sales to program onboarding.

• Ensure good customer experience and execute a feedback loop to improve the related processes

• Understand Crio’s product offerings and customer acquisition process

• Organize and manage work and report progress with CRM/Spreadsheets

• Good communication skills in English and Hindi (optional)

• 1+ years exp of customer handling roles preferred

• Motivation and drive to learn and grow in career

• Problem solving skills to handle work scenarios, take decisions and manage the work in a time effective manner
  
  
  

Role: Backend Developer-SDE2

• 3-5 years of exp into

Responsibilities:

• Work on the development backend systems for our first product.
• Build reliable, secure and performant backend systems.
• Drive test coverage and continuous delivery automation within the team.

Requirements:

• 3-4 years of software development experience.
• Strong computer science fundamentals.
• Good knowledge of Java ecosystem.
• Can write code that is readable, maintainable and performant.
• Good understanding of relational databases, transactions, entity-relationship modeling.
• Comfortable writing multi-threaded programs.