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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

Responsible for end to end ownership of project deliverables and regular interactions with the clients to provide project status updates Work on the estimations for a given project Identify the risks and provide a mitigation plan promptly Responsible for generating reports, invoice and billing People responsibilities include ensuring optimal retention of talent and improving the performance of team members through continuous feedback Timely reporting of the projects to the client and management

Responsibilities include:

• Coordination and completion of projects on time within budget and scope. 
• Oversee all aspects of projects. Set deadlines, assign responsibilities, and monitor, and summarize the progress of the project. 
• Prepare reports for clients and internal stakeholders regarding the status of the project. 
• Work on the estimations for a given project. 
• Identify the risks and provide a mitigation plan promptly. 
• Generation of reports, invoices, and billing. 
• People's Management includes ensuring optimal retention of talent and improving the performance of team members through continuous feedback.
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Experience and Expertise: 

• Overall 7-12 years of experience and at least 4 years of project delivery management experience. 
• Should have worked on SaaS products and have experience in handling a team (at least 10-15). 
• Sound knowledge of SDLC, and quality process with respect to delivery management.
• Experience in Mobile application development and programming knowledge is a plus.
• Good presentation skills, Excellent verbal and written communication skills, and the ability to interact with customers at all levels

We are looking for a Senior Java Developer with 6+ years of experience to join our team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and Cloud Technologies. You will play a key role in designing, developing, and optimizing scalable applications while mentoring junior developers and ensuring best coding practices.

Key Responsibilities:

• Design, develop, and maintain Java-based enterprise applications.
• Implement and optimize Microservices Architecture using Spring Boot.
• Develop, test, and deploy RESTful APIs and Web Services.
• Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
• Ensure application scalability, security, and performance.
• Collaborate with DevOps teams for CI/CD pipeline integration.
• Work with Cloud platforms (AWS, Azure, or GCP) for cloud-native development.
• Implement best practices for coding, testing, and deployment.
• Lead code reviews, mentor junior developers, and contribute to architectural decisions.
• Troubleshoot production issues and provide effective solutions.

Required Skills & Experience:

• 6+ years of hands-on experience in Java development.
• Strong expertise in Spring Boot, Spring MVC, and Spring Security.
• Experience with Microservices Architecture and containerization tools like Docker/Kubernetes.
• Proficiency in SQL & NoSQL databases (MySQL, PostgreSQL, MongoDB, Redis).
• Hands-on experience with RESTful APIs, messaging systems (Kafka, RabbitMQ), and authentication mechanisms (OAuth, JWT, SAML).
• Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
• Experience in Agile/Scrum development methodologies.
• Strong knowledge of multi-threading, concurrency, and design patterns.

What You’ll Be Doing

• 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
• 💡 Join brainstorming sessions and help shape our products.
• 🚀 Things move fast here, and you’ll learn as you go.
• 🤝 Work closely with everyone—designers, developers, and even marketing folks.
• 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.

What We’re Looking For

We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!

For Backend Engineers

• 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
• 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
• ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.

For Frontend Engineers

• 💻 Expertise in React Native.
• 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
• 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.

General Expectations for All Engineers

• 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
• 🔍 You enjoy figuring things out and experimenting until you get it right.
• 🤝 Great communication skills and a collaborative mindset.
• 🚀 You’re ready to dive in and make things happen.

Interview Process

If we like your application, Be ready to:

1. Solve a data structures and algorithms (DSA) problem in your preferred programming language.
2. Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
3. Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend

Why Join Us?

• 💡 Your work will matter here—no busy work, just real projects with real outcomes.
• 🚀 Help shape the future of our company.
• 🎉 We’re all about solving cool problems and having fun while we do it.

I Hope you doing great!

I came across your profile and am impressed with your background. I wanted to reach out regarding Lead/.Net Full stack developer. Based on your profile, I think you would be a great fit! If you are interested in hearing more, I would love to connect and give you more information.

Position: Lead/.Net Full stack developer

Location: Hyderabad, Telangana, India

Job Type: Permanent (full-time)

Company Overview:

About Wallero:

We are a Seattle-based company specializing in product engineering, software development, and technology services. With offices in the U.S., Canada, Bulgaria, and India (specifically, Manjeera Trinity Corporate, JNTU-Hitech City Road, adjacent to LULU Mall in Hyderabad), we provide comprehensive solutions to our global clientele.

As a Microsoft Gold partner company, Wallero is committed to delivering exceptional services and innovative solutions in the technology space. For a detailed overview of our company, please visit: https://wallero.com/aboutus/

Wallero Culture:

At Wallero, we foster a vibrant and inclusive culture that values collaboration, innovation, and professional growth. We believe in creating an environment where every team member can thrive and contribute meaningfully to our projects and initiatives. Explore more about our culture and career opportunities at: https://wallero.com/careers/

Key Responsibilities:

• Experience with C#, .Net, Azure DevOps, Angular.
• Build, Maintain and Integrate applications developed in different tech stack MVC, .Net, C#, SQL, Azure Stack
• Design and implement build-deployment-test automation.
• Microservices, Database design and implementation for
• relational and non-relational databases.
• Excellent interpersonal, verbal, and written communication skills.

Why Wallero?

·      Founded by technologists from Microsoft, Wallero has established a strong reputation for building amazing products, applications and cloud solutions for enterprises and municipalities in the US and Worldwide

·      At Wallero, products and solutions are developed for Enterprises who demand the industry’s best in cutting-edge technologies. Whether it’s Internet of Things, Custom Mobile Apps, or Public Cloud, your career at Wallero will enable you to have hands-on experience in delivering customer delight while enhancing your career growth by working with the latest and best in technology.                                                                                                                                                                                      

·      Our culture encourages initiative and growth while promoting the ability to take on new opportunities and working on new technology.

·      Wallero’s culture is one of collaboration and teamwork – always encouraging individual and team contributions.

·      Employees work in a respectful environment and can work on the projects that align with their career and technology interests.

If you believe you have the skills and experience necessary for this role and are excited about contributing to our team, we would love to hear from you.

This Social Media Executive is suited for someone with an entrepreneurial spirit and wants to get a first-hand experience in various things that happen in a new organization. A candidate that doesn’t mind about living any challenging experience by owning it to self.

Candidate will be given responsibilities of supporting (including but not limited to) social media strategy planning, online advertising, promotions, & Ad-Campaigns. He/she will monitor and create aggressive marketing on Instagram & Facebook and create engaging content for blogs, forums and other social networks like Facebook, Twitter, Instagram, LinkedIn, Quora, Pinterest, etc.

He/she will optimize our website, blogs and social media content for maximum reach and impact (e.g. SEO/SEM) by using keyword analysis and cost/benefit analysis. They will develop a content calendar on a weekly and monthly basis.

Our company’s culture is unique in that we truly live by our values of friends first, integrity and doing the right thing.